ashby reserve maintenance plan
Transcription
ashby reserve maintenance plan
A SHBY R ESERVE MAINTENANCE PLAN June 2003 Author Jacob Kochergen City of Mitcham ACKNOWLEDGEMENTS The author would like to thank the following individuals for their assistance and contribution in compiling this maintenance plan. - Enid Robertson, local resident and conservationist Maggy Ragless, Community Historian (City of Mitcham) David Deer, Senior Horticulturalist (City of Mitcham) Phil McNamara & Mathew Turner (SA Urban Forest Biodiversity Program) TABLE OF CONTENTS 1. RESERVE IDENTIFICATION .................................................................................... 1 2. BACKGROUND, HISTORY & STATUS OF THE RESERVE........................................ 2 3. 2.1 Background and Status............................................................................... 2 2.2 European History ......................................................................................... 3 2.3 Aboriginal History........................................................................................ 6 2.4 Clearance History ........................................................................................ 6 2.5 Fire History .................................................................................................. 6 2.6 Easements ................................................................................................... 7 2.7 Legislation ................................................................................................... 9 2.8 Fencing........................................................................................................ 9 2.9 Current Maintenance Operations............................................................... 10 RESERVE DESCRIPTION....................................................................................... 11 3.1 Physical Description .................................................................................. 11 3.1.1 Topography / Land Form .............................................................................. 11 5. 6. Geology ........................................................................................ 12 3.1.1.2 Physiography ................................................................................ 14 3.1.2 Soils .......................................................................................................... 14 3.1.3 Rainfall....................................................................................................... 17 3.1.4 Adjacent Land Uses ..................................................................................... 19 3.2 Vegetation.................................................................................................. 22 3.2.1 General Description .................................................................................... 22 3.2.2 Plant Species Richness................................................................................ 25 3.2.3 Significant Flora........................................................................................... 25 3.2.4 Significant Plant Communities ..................................................................... 27 3.2.5 Condition of Native Vegetation..................................................................... 27 3.2.6 Relationship to Other Vegetation ................................................................. 28 3.3 4. 3.1.1.1 Fauna......................................................................................................... 31 RESERVE VALUES ................................................................................................ 33 4.1 Conservation Significance of Vegetation and Habitat................................ 33 4.2 Landscape Values...................................................................................... 34 4.3 Educational, Historical or Scientific Values............................................... 34 RESERVE MANAGEMENT OBJECTIVES ............................................................... 36 5.1 Economic Objectives................................................................................. 37 5.2 Environmental Objectives.......................................................................... 38 5.3 Social Objectives....................................................................................... 38 MANAGEMENT ISSUES & STRATEGIES ................................................................ 39 6.1 6.1.1 Conservation of Indigenous Flora and Fauna............................................ 39 Sites or Features of Significance.................................................................. 39 6.1.2 Natural Regeneration................................................................................... 40 6.1.3 Revegetation .............................................................................................. 41 6.1.4 Seed Collection .......................................................................................... 42 6.1.5 Fauna Habitat ............................................................................................. 43 6.1.6 Weeds ....................................................................................................... 43 6.2 6.1.6.1 Weed Control Principles ................................................................. 45 6.1.6.2 Weed Control Techniques .............................................................. 46 6.1.6.3 Weed Hygiene ............................................................................... 47 Public Use .................................................................................................. 48 6.2.1 7. Recreation.................................................................................................. 48 6.3 Drainage .................................................................................................... 51 6.4 Dumping .................................................................................................... 55 6.5 Fire............................................................................................................. 56 6.5.1 Fire Risk Factors ......................................................................................... 56 6.5.2 Fire Protection Measures ............................................................................. 56 6.5.3 Ecological Fire Management ........................................................................ 61 6.6 Quarry........................................................................................................ 62 6.7 Community Education ............................................................................... 62 IMPLEMENTATION OF STRATEGIES ..................................................................... 64 7.1 Reserve Status........................................................................................... 64 7.2 Management Zones ................................................................................... 64 7.3 Management Committee............................................................................ 64 7.4 Monitoring, Evaluation and Review ........................................................... 65 7.5 Resourcing and Personnel ........................................................................ 65 7.6 Implementation Guide................................................................................ 68 7.7 Summary of Strategies.............................................................................. 70 REFERENCES & BIBLIOGRAPHY ................................................................................. 75 APPENDICES APPENDIX APPENDIX APPENDIX APPENDIX APPENDIX APPENDIX APPENDIX APPENDIX 1 2 3 4 5 6 7 8 – CITY OF MITCHAM MEMO 20TH JUNE 1984 – ABORIGINAL USE OF PLANTS – FLORA SURVEY – FAUNA SURVEY – WEEDING CALENDAR – RESERVE RECORD SHEET – EXEMPTIONS UNDER THE NATIVE VEGETATION ACT 1991 – BUSH FOR LIFE SITE MC018 TABLES TABLE 1. GEOLOGICAL HISTORY OF THE ADELAIDE REGION WITH INFORMATION ON WATIPARINGA RESERV E .................................................................... 13 TABLE 2. SOIL TYPES IN ASHBY RESERVE ............................................................. 17 TABLE 3. CLIMATE AVERAGES OF BELAIR AND BLACKWOOD. ............................. 19 TABLE 4. INDIGENOUS PLANTS WITH A CONSERVATION RATING IN ASHBY RESERVE................................................................................................... 25 TABLE 5. CONDITION RATING SYS TEM OF NATIVE VEGETATION FOR ASHBY RESERVE................................................................................................... 27 TABLE 6. ASHBY RESERVE’S RELATIONSHIP TO NEARBY NATIVE VEGETATION. 29 TABLE 7. INDIGENOUS FAUNA WITH A CONSERVATION RATING IN WATIPARINGA NATIONAL TRUST RESERVE AND SHEPHERDS HILL RECREATION PARK (NPWSA). .................................................................................................. 32 TABLE 8. IMPLEMENTATION GUIDE ......................................................................... 68 TABLE 9. HIGH PRIORITY STRATEGIES ................................................................... 70 TABLE 10. MEDIUM PRIORITY STRATEGIES .............................................................. 74 TABLE 11. LOW PRIORITY STRATEGIES .................................................................... 74 FIGURES Figure 1. United Water Infrastructure............................................................................. 8 Figure 2. Topography of Ashby Reserve.......................................................................11 Figure 3. Eden Fault Block ..........................................................................................14 Figure 4a. Dominant Soil Types of Ashby Reserve..........................................................15 Figure 4b. Soil types of ridge and valley formations on the Eden Fault Block ....................16 Figure 5. Rainfall distribution in the Adelaide region ......................................................18 Figure 6a. Land-Use Adjacent to Ashby Reserve ............................................................20 Figure 6b. Bushland reserves surrounding Ashby Reserve ..............................................21 Figure 7a. Vegetation Map of Ashby Reserve .................................................................23 Figure 7b. Significant Weed Infestations .........................................................................24 Figure 8. Locations of Some Indigenous Flora (Significant)............................................26 Figure 9. Trails & Entrances ........................................................................................50 Figure 10. Storm Water Erosion.....................................................................................53 Figure 11. Bushfire Prevention.......................................................................................59 Figure 12. Management Zones ......................................................................................67 Ashby Reserve Maintenance Plan, June 2003 1. RESERVE IDENTIFICATION Reserve Name : Ashby Reserve LGA : Mitcham Location : End of Gulfview Road, Blackwood. Bound by dwellings on Dryandra Drive and Gloucester Avenue on its northern boundary, and Hill Road and Lee Street on its southern boundary. Watiparinga National Trust Reserve adjacent to its western boundary. Grevillea Way, Gum Grove and Gulfview Road are on its eastern boundary. A fire track dissects the north-eastern portion of the reserve linking two bituminised sections of Grevillea Way. Title Information: Section 2202 Certificates of Title • C/T 5773/549, LT 4 (DP 150754) • C/T 5770/946, LT 10 (DP 9202) • C/T 5713/133, LT 157 (DP 14965) • C/T 5738/558, LT 88 (DP 7803) Section 2203 Certificates of Title • C/T 5700/943, LT 9 (DP 9202) • C/T 5700/944, LT 11 (DP 9202) • C/T 5700/945, LT 12 (DP 9202) • C/T 1242/92, LT 99 (DP 7805) - former Gulfview Reserve Zoning : Hills Face Zone (HFZ) Size : Approximately 26 hectares Class of Reserve: Undeveloped – modified woodland (a) semi-natural Page: 1 Ashby Reserve Maintenance Plan, June 2003 2. BACKGROUND, HISTORY & STATUS OF THE RESERVE 2.1 BACKGROUND AND STATUS Ashby Reserve is amongst the largest of City of Mitcham’s undeveloped woodland reserves. It is situated approximately two kilometres south-west of the Belair Country Fire Service station. The reserve is irregular in shape with residential development on its northern, southern and eastern boundaries. The exception to this is its western boundary, which joins Watiparinga National Trust Reserve (“Watiparinga”). The Watiparinga Management Committee is part of the National Trust of South Australia. The Committee has undertaken significant native vegetation works in Ashby Reserve. Watiparinga is adjacent to Ashby Reserve, and shares many similarities such as topography, geology, flora and fauna. Therefore, the Watiparinga Reserve Management Plan has been used as a valuable source of information in compiling this maintenance plan and has been cited accordingly. The present day “Ashby Reserve” consists of the former Gulfview Reserve (R513, 4.45 hectares) and Ashby Reserve (R501, 20.23 hectares). An internal Council memorandum on 20th June 1984 from the deputy town clerk states that the two reserves are to be combined and will retain the title R501- Ashby (Appendix 1). The City of Mitcham Open Space Survey 1982 (Moyle et al 1982) classified both Ashby Reserve and the former Gulfview Reserve as “Undeveloped: modified woodland – (a) seminatural.” Definitions of the classification from chapter four of the report are: • “Undeveloped Reserves” – those reserves which remain in a largely semi natural or cleared condition without any specific development for a particular function. • “Modified woodland” – all areas of wooded land. The group is further subdivided into: (a) Semi-Natural Woodland: woodland in a largely natural condition; some with exotic shrubs in the understorey, and (b) Woodland Dominated by Exotic Plants: most of the natural vegetation has been crowded out by exotics. The above classifications assigned to Ashby Reserve in 1982 are still accurate today. Page: 2 Ashby Reserve Maintenance Plan, June 2003 2.2 EUROPEAN HISTORY A brief history of Ashby and Gulfview Reserves has been compiled with the grateful assistance of: • Maggie Ragless, City of Mitcham Historian (Land Titles and Old Systems searches); • Personal communications with Enid Robertson; • Extracts from the Watiparinga Reserve Management Plan, by Enid Robertson - a local resident and botanist. Enid’s family grazed sheep and cattle on the land now known as Ashby Reserve and Watiparinga National Trust Reserve. Although the title search provides minimal information regarding land use, it appears that Section 2202 and 2203, Hundred of Adelaide which form Ashby Reserve, were used for grazing sheep and cattle during the period 1850-1974. According to Ragless (2002) by 1881 a syndicate of gentleman had invested in land along the proposed route of the railway and this lead to the subdivision of Blackwood, Eden Hills and Belair. It would appear that land clearing took place during the 1870s for Section 2203 Hundred of Adelaide as the description changed from “house and land” to “grassland” (property description from the Mitcham District Council Rate Assessment Books). During the 1880s and 1890s when the railway line and tunnels were constructed through the Watiparinga Reserve, workers would pass through Ashby Reserve and Watiparinga with bullock teams to the Belair Hotel. These trails are still visible today and some were upgraded to fire tracks within Ashby Reserve and Watiparinga National Trust Reserve (Robertson, pers. comm., 2002). According to Ragless (2002) the syndicate attempted to subdivide land around the railway route but were caught in an economic depression and were unsuccessful in that venture. In 1895 a farmer from Alma in the mid-north, Frederick Mableson purchased the sections and the family attempted dairying. Although Frederick died in 1902 the family continue to own the land until 1911 when it was purchased by Ernest C. Saunders and Edwin Ashby. Eden Hills railway station was installed making access to the additional subdivisions more attractive (CT 596/198). The Ashby family purchased the land now known as Ashby Reserve from the Rainer family who utilised the property to graze dry cows, as part of a dairy farm. When purchased in the 1930s the property was predominantly cle ared with some patches of remnant vegetation. The Ashby’s cleared very little of the land. The property was used in conjunction with Watiparinga for livestock grazing. The Ashby’s managed the property as part of the larger Wittunga Farm until the 1960s, which included the Watiparinga land (Robertson, pers. comm., 2002). . By the mid 1960s the subject land became Ashby and Gulfview Reserve as part of a land subdivisional requirement, in which land was set aside for community open space. During the period 1965-1975, little action occurred on the reserve with the exception of some grazing. Ashby Reserve and the former Gulfview Reserve were previously cleared, sown to pasture, fertilised with superphosphate and grazed for many years. The properties were later abandoned as farm land at the time of subdivision (Moyle et al., 1982). In 1968 the existing bullock tracks used in the 1880s were excavated to make a fire track near Baeckea Crescent, leading into Watiparinga (Robertson, pers. comm., 2002) – Subdivision Deposited Plan No. 7805, 1966. Page: 3 Ashby Reserve Maintenance Plan, June 2003 During 1975-1994 The National Trust of SA undertook an environmental weed control and revegetation program in Ashby/Gulfview and Sleeps Hill Reserves under the direction of Enid Robertson. University student labour was utilised along with those that volunteered their time. Weeds of concern included ash trees, olives, African daisy, boneseed and broom. Early on there was opposition from nearby residents regarding the removal of mature ash trees. Therefore “showy” non-indigenous natives were planted in their place and this appeased the concerned residents. In 1989 small populations of indigenous orchids were discovered (Robertson, pers. comm., 2002). It was also noted from correspondence between Enid Robertson and the City of Mitcham that new infestations of ash trees continued to establish in the southern creek line from seeds carried in stormwater from Ben’s Place. During the 1970s blackberries were eradicated using experimental methods along the contour fire track below Banksia Crescent. A Bush for Life site (formerly Bushcare) has been established at the end of Gulfview Road (Appendix 8) -between the fire track and residential properties off Bens Place and Gulfview Road. Minimal disturbance weed control has targeted woody and herbaceous weeds. Application 9946 Section 2202 Hundred of Adelaide, CT 132/192-193 9 Nov 1850 Land grant to Ann Shephard, widow of the Sturt for 73 acres at £83 (road on south side) 14 Apr 1866 Conveyance from A.S. to William Thomas Shephard, farmer of the Sturt, “together with all erections, buildings and fences, thereon and together with all timber minerals, ways, rights, waters watercourses, numbers privileges and appurtenances thereto belonging or appertaining. 16 Apr 1866 Mortgage for £300 from W. T. S. to Messrs. William Peacock, George Young and James Munro Linklater all of Adelaide. 26 Feb 1869 Real Property Act Application, W. T. S. to Anne Elizabeth Richards, wife of Thomas Richards, farmer of Kapunda and Thomas Henry Shephard, coach maker of Adelaide as tenants in common. Application 13771 Section 2203 Hundred of Adelaide 1 Nov 1850 Land grant of 91 acres to William Bartley Esq. Adelaide for £91.01.00 10 Sep 1856 Conveyance from W. B to Thomas Tapson, builder of Adelaide for £900 11 Sep 1856 Mortgage from T. T. to W. B. to secure payment of Bill of Exchange for £315 and of a sum of £500 and interest. Page: 4 Ashby Reserve Maintenance Plan, June 2003 Sections 939, 1044, 1045, 1046, 2203 Hundred of Adelaide = 380 acres House and Land 8 Nov 1856 Section 939, 1046, 2203 Hundred of Adelaide with other land at Goolwa – mortgage for £1,100 form W. M. Bartley to the very Reverend James Farrell and Robert Richard Torrens and Francis Davison of Blakiston. 20 Mar 1857 Section 939, 1046, 2203 Hundred of Adelaide with other land at Goolwa – mortgage form W. B. to Farrell, Torrens and Davison to secure £400 1868 John Kelly renting and Bartley owner 1873 John Kelly occupier and owner. Owner of land at Marion for market gardening. 1876-1878 Sections 17, 939, 1044, 1045, 1046, 2202 and 2203 = 460 acres house and land 1880-1881 Sections 17, 939, 1044, 1045, 1046, 2202 and 2203 = 516 acres grassland and old house value L130 (Mitcham Council Assessment Books). It would appear that land clearing took place during the 1870s for Section 2203 as description changed from “house and land” to “grassland.” 1883 John Whyte of Adelaide, merchant in one divided fourth part Sections 30 & 31 of (80 acres each), Section 939 (23 acres), 1045 (54 acres), 1044 (63 acres), 1045 (78 acres), 1046 (106) acres, 2202 (73 acres), 2203 (91 acres), Pt Sect 16 & 17 together (1035 acres) and 28 perches and closed government roads. Except Pt Section 1046 of 12 acres 2 roods and 19 perches for the railway. Section 2202 & 34 Hundred of Adelaide 1870-1873 Occupier and owner, W. T. Shephard, Cole Road, old house and garden Section 2202, 16 and 17. 1875 Occupier and owner, R. Buchanan, 230 acres L50 house and land (Mitcham Council Assessment Books). Section 2202 & 2203 and others Hundred of Adelaide CT 596/199 ex Transfer No. 291007 & 9 19 May 1895 Frederick Mableson farmer of Blackwood Section 939 of 20 acres, Pt Sec 16, 17, 1045, 2202 2203 & closed roads. 11 April 1895 Mortgaged from FM to Assets Purchase & Realisation Co. Ltd. Discharged 1 April 1897. 01 April 1897 Mortgage. 314473 with other property from FM to Mary Ann Padman discharged 13 March 1903. 1903 Transfer No. 391547 from Mary Mableson (wife of Frederick) to Mary Mableson for her life and to (sons) Charles David Mableson, John Albones Mab leson & Page: 5 Ashby Reserve Maintenance Plan, June 2003 Harold Henry Mableson all farmers of Blackwood. 13 Mar 1903 Mortgage 391548 from MM. CDM. JAM. HHM to the State Bank of SA. Discharged 22 Feb 1911. 19 Sept 1904 Lot 13 discharged from Mortgage to CW Priest 22 Feb 1911 Trans 527732 from MM. CDM., JAM, HHM to Ernest Charles Saunders & Edwin Ashby of Adelaide, Agents as Tenants in Common 2.3 ABORIGINAL HISTORY According to Robertson (1999 p61) the area lies within the country of the Kaurna, the Adelaide Plains people. The stringy bark forests of the Mount Lofty Ranges marked their eastern boundary. The Kaurna were seasonally nomadic people tending to travel along coastal areas in summer and moving to the more timbered foothills in winter, where there was more shelter and firewood. Hollows or fallen red gums (Eucalyptus camaldulensis) along the riverbanks were often used for shelter and it is likely that the caves on Watiparinga were used for this purpose. According to Robertson (1999) the Kaurna referred to the creek north of the Sturt River as “Watiparinga.” Many plants utilised by the Kaurna for food, shelter and tools can be found in Watiparinga and Ashby Reserves (Appendix 2). 2.4 CLEARANCE HISTORY From a search by Ragless (2002) in the Mitcham District Council Rate Assessment it appears that land clearing took place during the 1870s for Section 2203, Hundred of Adelaide (majority of reserve). As the title description changed from ‘house and land” to “grassland…” This is supported by Enid Robertson (pers. comm., 2002), when recalling the period in which her grandfather, Edwin Ashby purchased the land in the 1930s. The property was previously cleared with some patches of remnant vegetation remaining. The Ashby family undertook minor clearing of native vegetation The Kelly family rented Section 2203 from William Bartley until they purchased it in 1873. They owned much of the area as well as undertaking intensive market gardening on the Sturt Creek near Marion. 2.5 FIRE HISTORY Robertson (1999, pages 64-65) lists seven prominent fires from 1934-1973 in Watiparinga whilst Thompson (pers comm. 2002) recalled three minor fires in the area from 1995-1999. 9 Mar 1934 Fire started in Watiparinga (old viaduct gully) and travelled “between Blackwood and Belair on a five-mile front, burnt hundreds of acres of orchards and bush, threatened many homes and destroyed the Wittunga homestead (now Wittunga Botanic Gardens). The Advertiser March 10, 1934, pages 1 and 15. Page: 6 Ashby Reserve Maintenance Plan, June 2003 19 Jan 1943 Fire in viaduct paddock (Watiparinga gully). Fire No. 17 for the season. Diary entry of Esther Ashby, 1943. 27 Dec 1961 Fire started in Centennial Park areas (Pasadena-Panorama) fanned by a strong north wind, completely burnt out Watiparinga National Trust Reserve on both sides of the railway line and threatened homes in the Eden Hills district. The Advertiser December 28, 1961 and National Trust records. Summer 1972/73 Country Fire Service (CFS) records at Belair CFS station list many fires in the vicinity of Watiparinga when the area was considered a definite fire hazard. These records are given in acres: 1 acre = 0.405 hectares). 26 Nov 1972 Gloucester Avenue extension, three-acre grass fire, deliberately lit. 16 Feb 1973 Watiparinga National Trust Reserve, south side of Gloucester Avenue extension. Five acre grass fire caused by a camp fire. 26 Mar 1973 Mead Street and Gloucester Avenue extension. Two-acre grass fire deliberately lit. 26 Dec 1995 Gloucester Avenue, 5 hour fire 28 Nov 1999 Witta Wirra Way, 30 minute grass fire 19 Dec 1999 End of Gulfview Road, 60 minute grass fire Summer 2001 North-east section of Ashby Reserve. Fire escaped from Watiparinga and burnt a section of the gully below houses on Gloucester Avenue and Banksia Crescent Records from Watiparinga indicate that there is at least one fire somewhere in the reserve each year. Since 1984 all fires have been less than 0.5 hectares in area. STRATEGY 2.5 Obtain additional records of the fire history in and around Ashby Reserve from Belair CFS. 2.6 EASEMENTS Sewage easements appear to be over Ashby Reserve but can not be substantiated without deposited plans for each title. Council will need to obtain these for each title for asset management purposes and in then event of future works, ie. emergency repairs. The likely easements identified include: • United Water (formerly E&WS) – see Figure 1. Page: 7 Ashby Reserve Maintenance Plan, June 2003 Page: 8 Ashby Reserve Maintenance Plan, June 2003 - inspections points along both fire tracks (Sections 2202, 2203) which are at the rear of houses on Banksia crescent and Witta Wirra Way/Grove Street/Baeckea Place; - Pumping station, south-east corner of reserve, on boundary west of Bens Place; - Pumping Station, north-east corner, where gravel fire track commences uphill section of Grevillea Way. - Pumping Station, where gravel fire track meets upper bitumen section of Grevillea Way. United Water should be made aware of this maintenance plan. Adverse impacts may result in the event of maintenance works or emergency repairs by staff indiscriminately dumping of materials, driving on the reserve or spreading nutrient rich waste which appears to be occurring This maintenance plan should be communicated and embraced by all stakeholders to ensure desired outcomes are achieved. STRATEGY 2.6 Obtain deposited plans for all titles that form Ashby Reserve and record all easements in a review of the Ashby Reserve Maintenance plan. 2.7 LEGISLATION Acts and associated regulations that may impact on the management of woodland reserves such as Ashby Reserve must be adhered to, and include but not limited to the: • • • • • • • • • • 2.8 Local Government Act 1999 Native Vegetation Act 1991 Country Fires Act 1999 Environment Protection and Biodiversity Conservation Act 1999 (Commonwealth) Environment Protection Act 1993 Water Resources Act 1997 Development Act 1993 Metropolitan Drainage Act 1935 Fences Act 1975 Animal and Plant Control (Agricultural and Other Purposes) Act 1986 FENCING Council has not erected or maintained fences in Ashby Reserve, except for a small section above the quarry at the end of Lee Street. Isolated old wooden fence posts, indicate the approximate boundary line on the reserve’s western perimeter which adjoins Watiparinga. A boundary fence between these two properties would not serve any purpose, except to physically mark the properties. Page: 9 Ashby Reserve Maintenance Plan, June 2003 Fences have been erected in many instances by adjoining residential landholders. Even with the delineation of boundaries, some residents (with fences) illegally dispose of garden refuse onto Ashby Reserve. There are arguments for and against fences. Adequately designed fencing can restrict the range of feral animals that prey upon native fauna. Also fences can restrict the movement of people entering the reserve from many points, creating new tracks and causing damage to native plants. Erecting fences can negate the benefits of habitat corridors, which link remnant areas of bushland. It would assist residents and Council staff when undertaking weed control and maintenance duties to know precisely where reserve boundaries are. This can be achieved by first having all boundaries surveyed followed by installing posts at 10-20 metre intervals, without the need for mesh or wire. However, mesh fencing may be required to restrict access to areas of high habitat value. It is beyond the scope of this maintenance plan to evaluate the adequacy of quarry fencing for public safety. This issue is discussed further in Section 6.6. STRATEGY: 2.8 (a) Install markers along reserve boundaries using recycled posts after they have been surveyed. 2.8 (b) Consider appropriate fencing around areas of high habitat value. Install entry and exit points along fences for movement of indigenous fauna. 2.9 CURRENT MAINTENANCE OPERATIONS Maintenance of the reserve is undertaken by Council and Bush for Life volunteers. In the past Council has been restricted to annual maintenance of fire tracks and slashing of the eastern section of Ashby Reserve - end of Gulfview Road. In order to implement this plan, Council will need to commit considerably more resources than it has previously. In response, Council has recently established a “woodland reserve team” with the objective of undertaking minimal disturbance weed control in indigenous vegetation of high value, including maintenance of fencing and signage in woodland reserves such as Ashby. However, Council may need to commit additional resources, as the woodland reserve crew’s efforts will be stretched amongst approximately 500 hectares of bushland and road reserves throughout the Mitcham Hills. Page: 10 Ashby Reserve Maintenance Plan, June 2003 3. RESERVE DESCRIPTION 3.1 PHYSICAL DESCRIPTION 3.1.1 Topography / Land Form . ASHBY RESERVE From a topographic contour map (Figure 2) the reserve has a distinct “V’ shape highlighting two streams which commence at the north-eastern and south-eastern sections of the reserve. The streams converge as they flow west towards Watiparinga. The land on both sides of the creek beds rise quite steeply to the reserve’s boundaries. The reserve contains two dominant steep slopes in what was formerly known as Ashby Reserve (R501). The northern section of Ashby Reserve has a slope gradient up to 38 degrees, (if not greater) with a predominate south-east aspect. The southern FORMER GULFVIEW RESERVE F igu re 2. To po graph y o f Ashb y Reserve slope has a gradient of about 30 degrees over the majority of the area with the south-west section exceeding this. This slope has a dominant north-east aspect. The former Gulfview Reserve (R513) is situated between the two converging streams, lying within the “V” shape. This section can be divided into almost two equal sections: (i) a slope with a north-west aspect and, (ii) a slope with a south-west aspect. The slope gradients range between 20-30 degrees. Page: 11 Ashby Reserve Maintenance Plan, June 2003 Throughout the reserve quartzite rock outcrops are common, especially on the steep sided northern and southern slopes. The south-western section of the reserve adjoins Watiparinga, which contains spectacular examples of rock folding. The stream beds have been eroded down to bed rock with numerous examples of rock protruding from the sides of gullies. Rock folding in Watiparinga Reserve 3.1.1.1 Geology Skeletal soils over bedroc k in the north-east sec tion of zone ‘E’ near the c reek 100 mm soil The ‘Geological Map of the Adelaide Region’ by Thomson (1972) indicates the Belair and Blackwood area, in which Ashby Reserve is situated, is of the Late Pre-Cambrian Belair Sub-Group - part of the larger Burra Group. The Belair Sub-Group ‘have an age in excess of 750 million years’ (Drew, 1999, p 79). According to Taylor et al.,(1974, p 13): The Belair Sub-Group…is characterised by sandstones and quartzites embedded with bed rock siltstones. The Sub-Group exceeds 300 metres in thickness and extends from the Glen Osmond area in a folded and faulted belt to the Blackwood area….The uppermost units display extensive ripple marks and mud cracks. The resistant members of the SubGroup have been responsible for preserving part of the Tertiary weathering profile from erosional stripping after uplift. The relict weathering is expressed by the skeletal and podzolic soils of the Eden Hills-BelairCoromandel Valley area occurring near the tilted old land surface preserved in places on the uplifted Eden Fault Block. According to Drew (1999, p79) the Belair Sub-Group was probably the result of deposition under shallow marine conditions. The finely laminated siltstones would represent low energy subtidal conditions. “The sediments were derived form the Gawler Craton to the west and entered the Adelaide Geosyncline…’ A summary of the geological history of the Adelaide region by Taylor et al., (1974, p 15) and specific details of Ashby Reserve and Watiparinga by Drew (1999, p 79) are listed below. Page: 12 Ashby Reserve Maintenance Plan, June 2003 TABLE 1. GEOLOGICAL HISTORY W ATIPARINGA RESERVE Geological Time Pleistocene OF THE Millions of Years 2-now ADELAIDE REGION WITH INFORMATION ON Event Change from arid to present climate, modern drainage regime fully established. Continued uplift of fault blocks, erosion of calcrete and older sediments, blanket of Pooraka Formation as slope deposits extending to the Lower Outwash Plain. Uplift rejuvenated streams such as Watiparinga Creek, draining from uplifted blocks. Active block uplift of ranges area, high rainfall and rapid erosion of younger cover sediment deposition of riverine fans of Hindmarsh Clay in plains area; followed by arid interval, low sea level and formation of calcrete mantle. End of tertiary, lacustrine sand and clays were deposited in the Belair-Blackwood area on the pre- or early-Tertiary peneplain. Cainozoic Mesozoic Pliocene 11-2 Miocene Oligocene Eocene 25-11 40-25 60-40 Palaeocene Cretaceous Jurassic Triassic 70-60 135-70 180-135 225-180 Permian 270-225 Marine sedimentation in plains area, lake deposits and laterite development in ranges area, followed by block uplift on revived para and Eden-Burnside Faults establishing framework for modern topography. Gentle faulting and erosion continues Marine sedimentation in Adelaide Plains area, subsidence on fault blocks. Then gentle faulting and erosion in Miocene-Pliocene period. Prolonged erosion and peneplanation (erosion causing a flat landscape) in late Mesozoic and early Tertiary, deep watering, some lake and swamp deposits. Uplift of fold belt and glaciation of mountain range Carboniferous Devonian Silurian Ordovician 350-270 400-350 430-400 500-430 Delamerian folding, faulting and metamorphosis in the Lower Ordovician and development of fold belt on site of future Mount Lofty Ranges. Palaeozoic Cambrian 600-500 Development of Adelaidean and Lower Cambrian sedimentation in the Adelaide Geosyncline formed by downwarp of Pre-Cambrian crystalline basement, which includes the Barossa Complex in the ranges area. Proterozoic Pre-Cambrian 4,500-600 Page: 13 Ashby Reserve Maintenance Plan, June 2003 3.1.1.2 Physiography Ashby Reserve is situated on the Eden Fault Block (Figure 3). According to Taylor et al.,(1974). Late Cainozoic block faulting has shaped the current topography, drainage patterns and the Eden, Burnside and Para Faults. The Eden Fault forms the backdrop to Adelaide and its suburbs. It rises rapidly to 300 metres, or more above sea level in the central region, but falls slightly to the north and Figure 3. Eden Fault Block south. Below the Eden and Burnside fault blocks are the upper outwash plains, which before European settlement formed from seasonal deposition of flood materials by creeks such as the Sturt River and Brownhill Creek (Taylor et al., 1974, p 16). Ashby & Watiparinga Reserve Source: Drew, 1999 3.1.2 Soils According to a study of the soils and geology of South Australia (Taylor et al., 1974, p 49) the Eden Fault Block which Ashby Reserve is situated is dominated by podzolic soils (mainly Type P2) and skeletal soils (SK) – Figure 4a. The study provides more information relevant to Ashby Reserve” The surface of the Eden Fault Block of the Belair-Blackwood area shows a variety of land forms according to where smooth remnants of an old laterite (Tertiary) surface remain, or where there has been vigorous dissection and erosion to steep-sided narrow ridges. In the former case lateritic podzolic (Type P4), and in the latter other podzolic (Types P2, P3) soils of varying depth and stoniness occur.(Taylor et al. 1974, p 50) – Figure 4b Page: 14 Ashby Reserve Maintenance Plan, June 2003 A B C D F E Page: 15 Ashby Reserve Maintenance Plan, June 2003 Figure 4b. Soil types of ridge and valley formations on the Eden Fault Block a) b) c) High ridge with flat tops Broad ridge with moderate slope Steep sided ridge Source: Taylor et al. 1974 Below are photographs of soil profiles along the northern fire track (zone ‘B’) below Banksia Crescent and Grevillea Way fire track. Refer to Figure 4a for locations. A B D E C F Page: 16 Ashby Reserve Maintenance Plan, June 2003 From the ‘Soil Association Map of the Adelaide Region’ (Taylor, 1972) Ashby Reserve contains several soil types listed in Table 2. The podzolic soils which cover most of Ashby Reserve are described by Murphy et al., (1994) as having low fertility rates and poor water retention characteristics. For agricultures they are limited to grazing but with large inputs of fertiliser they can be used for cropping. TABLE 2. SOIL TYPES IN ASHBY RESERVE Great Soil Group Podzolic Soils Soil Type Soil Type Description (Taylor , 1972) P2 Grey sandy surface over yellow, mottled clay with blocky structure on slates, shales and quartzites. P3 Grey sandy surface over red clay with granular structure on slates and shales. P4 Grey sandy surface with much ironstone gravel over yellow and mottled clay with granular structure. Skeletal Soils SK Very thin soils on bedrock. Rock outcrops general. Rendzina RZ Uniform dark brown to black soils with granular structure on highly calcareous parent material. 3.1.3 Rainfall Ashby Reserve is situated between the 650-700 millimetre isohyets (Figure 5) according to a study by Taylor et al. (1974, p29) using data that was compiled some twenty eight years ago. Climatic data from the Bureau of Meteorology Australia (2002) for Belair is compared to data tabled by Taylor et al., (1974, p28) for Blackwood. The Bureau of Meteorology Australia did not have data for Blackwood. The data tabled by Taylor et al., (1974, p 28) for Belair was omitted in preference for more recent recordings which finally ceased in 1996. Unfortunately Blackwood only had rainfall data. It is worth noting the difference between the mean and median rainfall data for Belair, being 33.4 millimetres. It is preferable to use the ‘median’ as it represents the middle value in an array of numbers, and therefore a more accurate representation of the data set. The ‘mean’ is subject to variation by outlying numbers, which in terms of rainfall, can be significantly skewed by exceptionally wet or dry periods. Taylor et al., (1974, p 27) makes an interesting hypotheses when comparing rainfall data between Blackwood and Belair. The study states that “Belair at the same elevation has somewhat higher annual rainfall as it may receive more effective rain-bearing winds sweeping round the escarpment from the Gulf.” The reason for this variation is “possibly due to D natural features such as the Sturt River Valley.” Page: 17 Ashby Reserve Maintenance Plan, June 2003 Ashby Reserve Figure 5. Rainfall distribution in the Adelaide region (showing isohyets at 50 mm intervals) Source: Taylor et. al, 1974 Page: 18 Ashby Reserve Maintenance Plan, June 2003 TABLE 3. CLIMATE AVERAGES OF BELAIR AND BLACKWOOD . Belair (Kalyra) Alt. 305 m 1895-1996 Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total Mean Daily Mean Daily Max. Temp Min. Temp 0C 0C Blackwood Alt. 269 m Mean 9am wind speed (km/hr) Mean 3pm wind speed (km/hr) Median Rainfall (mm) Mean Rainfall (mm) Mean Rainfall (mm) 26.6 26.8 24.0 20.1 16.4 13.2 12.5 13.8 16 19.4 22.6 24.7 14.9 15.4 14.0 12.1 10.1 7.8 7.0 7.4 8.5 10.0 11.9 13.3 14.2 14.0 14.5 14.1 14.7 15.3 16.4 16.8 17.1 16.8 15.7 15.0 15.0 14.7 14.3 14.6 15.6 16.5 18.7 19.5 17.9 17.4 16.7 16.0 20.4 13.7 22.2 52.8 83.6 90.2 97.6 83.1 67.4 54.9 32.0 25.8 24.4 24.6 30.8 58.2 93.2 100.9 97.5 87.5 73.5 58.7 40.0 34.0 23 26 23 61 85 85 91 82 64 57 40 32 19.5 10.9 15.4 16.4 689.8 723.2 669 The climate data confers with Charman and Murphy’s (1994) observation that red and yellow podzolic soils occur in areas with average annual rainfall above 650 millimetres. This agrees with Taylor et al., (1974, p 27) who state that podzolic soils: …have developed generally on all kinds of parent rock on the Eden Fault Block surface. This relationship has been tied approximately to the 675 millimetre isohyet as a minimum rainfall from field observation of soil occurrences. The exceptions are for particular parent material such as calcareous rocks. 3.1.4 Adjacent Land Uses Residential development surrounds Ashby Reserve on its northern, eastern and southern boundaries. Fortunately, its western boundary adjoins the Watiparinga National Trust Reserve which assists in maintaining habitat corridors (Figure 6a). When viewed from a topographic map, Ashby Reserve is part of a greater network of interlocking reserves (Figure 6b) such as Belair Reserve to the north-west, Zone ‘G’ along fire track. Saddle Hill Reserve (adjacent to Watiparinga’s Possible encroachment western boundary) and Shepherds Hill Recreation Park (National Parks and Wildlife SA) both adjacent to Watiparinga’s western boundary. Council should consider increasing habitat corridors between these reserves, including Sleeps Hill and Belair Reserve to the north of Ashby Reserve. Page: 19 Ashby Reserve Maintenance Plan, June 2003 Page: 20 Ashby Reserve Maintenance Plan, June 2003 . Belair Reserve Sleeps Hill Reserve Ashby Reserve Ellis Ave Reserve Pc potential N Source: adapted from a City of Mitcham map by Carto Tech Services Pty Ltd BUSHLAND RESERVES SURROUNDING ASHBY RESERVE FIG. 6b Page: 21 Ashby Reserve Maintenance Plan, June 2003 3.2 VEGETATION 3.2.1 General Description Ashby Reserve is described by Moyle et al., (1982) as containing remnants of a savannah woodland with regenerating grey box (Eucalyptus microcarpa), golden wattle (Acacia pycnantha) and patches of native perennial grasses on the hilltops. River red gums (Eucalyptus camaldulensis) grow along the two convergent creeks, with regeneration of understorey plants occurring on the south facing slopes. Zone ‘D’ looking east Field observations during April 2002 and vegetation maps support the above description. In addition there are small pockets of SA blue gums (Eucalyptus leucoxylon subsp. leucoxylon) on the northern slopes (south-east aspect) and drooping sheoak (Allocasuarina verticillata) on the extreme north-western boundaries adjacent to Watiparinga. The stands of drooping sheoaks between the two reserves form a magnificent landscape on a largely south-eastern aspect, and form one of the larger pockets in this area. The vegetation on Ashby Reserve can be broadly classified into two categories based upon land coverage (see Figure 7a and 7b): Z one ‘G’ near Watiparinga looking north-east. Planted native vegetation in the foreground • Planted Native Vegetation – using a mix of non-indigenous and indigenous species, covers a large proportion of the reserve. This category is restricted to the southern sections of the creek from Bens Place and the former Gulfview Reserve converging onto the creek from Bens Place. • Other – including intact remnant vegetation, degraded remnant vegetation and exotic grasses. There is a large variation in the condition of remnant vegetation with creek lines displaying a high level of weed invasion. This contrasts with intact remnant vegetation containing lower levels of weed invasion situated in the north-eastern section of the reserve with a small patch in a former quarry at the end of Lee Street (south-eastern corner). Across this category are vegetation types classified by Gillis (1992-93) as: - Grey box - Grey box / SA blue gum - River red gums - Drooping sheoak - Planted natives & exotics ( non-indigenous natives and exotic trees and shrubs) - Intact remnant vegetation – grey box, SA blue gums and drooping sheoak overstorey - Grasses Page: 22 Native Vegetation Condition Rating 1-3 3 2-3 3 1-2 3 2 1 2-3 Ashby Reserve Maintenance Plan, June 2003 1 1-2 2 N 3 2-3 VEGETATION MAP Gillis (1992-1993) - OF ASHBY RESERVE FIG. 7a Page: 23 Ashby Reserve Maintenance Plan, June 2003 Page: 24 Ashby Reserve Maintenance Plan, June 2003 3.2.2 Plant Species Richness A flora survey undertaken by Solveig Gillis in 1992-1993 (Appendix 3) revealed: • • • 82 indigenous species 55 non-indigeno us native species 59 exotic / weed species 3.2.3 Significant Flora Northern sections of the reserve (areas A, B and D - Figure 12) which have a south-east aspect contain the largest areas of intact remnant vegetation. Consequently these areas should receive the highest priority in bushland management. The abandoned quarry at the end of Lee Street in the southern section of the reserve (area I) contains a small patch of intact remnant vegetation. Ashby Reserve contains ten (10) indigenous plant species with a conservation rating (table below) – see Figure 8 for locations of some species. TABLE 4. INDIGENOUS PLANTS WITH A CONSERVATION RATING IN ASHBY RESERVE (see Appendix 3 for key to conservation ratings) Plant Family and Botanical Name AMARANTHACEAE Ptilotus erubescens Common Name Hairy-tails Australia South Australia Southern Mt Lofty Botanical Region R R ASPLENIACEAE Pleurosorus rutifolius Blanket Fern U CARYOPHYLLACEAE Scleranthus pungens Prickly Knawel R CUPRESSACEAE Callitris preissii (planted) Southern Cypress Pine U GOODENIACEAE Goodenia albiflora Velleia arguta White Goodenia Toothed Velleia U R Silky-head Lemongrass R GRAMINEAE Cymbopogon obtectus LEGUMINOSAE Glycine tabacina Variable Glycine MYRTACEAE Eucalyptus microcarpa Grey Box U Native Apricot R PITTOSPORACEAE Pittosporum phylliraeoides var. microcarpa V E Page: 25 Ashby Reserve Maintenance Plan, June 2003 N Gillis (1992-1993) LOCATIONS OF SOME INDIGENOUS FLORA (SIGNIFICANT) FIG. 8 Page: 26 Ashby Reserve Maintenance Plan, June 2003 3.2.4 Significant Plant Communities Turner (2001) reports that in 1995 Neagle upgraded Davies (1992 p13) conservation rating of grey box woodland to a priority 4 plant association in South Australia previously priority 5. According to Davies (1992 p 13) grey box are poorly conserved in South Australia, that is much depleted but a few large examples still remaining in the state. In addition a provisional listing of threatened ecosystems (DEH, 2001) in South Australia lists "E. microcarpa Grassy Low Woodland on Grey box woodland in area A foothills and slopes of southern Mount Lofty Ranges" as "endangered." The unpublished report states that the ecosystem has limited distribution on hills south of Adelaide. It is heavily modified by urban sprawl and associated invasion of exotics. Only a few degraded examples exist within reserves.. 3.2.5 Condition of Native Vegetation Robertson (1995 p 3) suggests a simplified means of assessing condition of native vegetation for management purposes and is based upon three condition classes: TABLE 5. CONDITION RATING SYSTEM OF NATIVE VEGETATION FOR ASHBY RESERVE Condition Rating Description 1 Native vegetation in which there are few weeds 2 Disturbed vegetation in which there are many-non indigenous plants but also a variety of native plants 3 Very degraded vegetation dominated by non-indigenous plants but with some native plants present Based upon the vegetation survey by Solveig Gillis (1992-93) the above condition rating has been applied to each vegetation type that has been mapped (Figure 7a). Within each type there are variances. Therefore, before undertaking bushland activities based upon these ratings (ie. rating 1), a site inspection is required as a vegetation type(s) in Figure 7a may contain elements of each condition class. However, comprehensive vegetation condition mapping should be completed to simplify management actions and supervision. Invasion by exotic grasses is widespread throughout the reserve (Figure 7b). This is not surprising considering a long history of grazing, adjacent urban areas and the influx of weeds from stormwater flowing into the reserve’s creeks. Creek lines are largely dominated by exotic grasses (ie. phalaris) which will require a long-term weed control program. However, there will Page: 27 Ashby Reserve Maintenance Plan, June 2003 always been an influx of weeds being deposited through stormwater, wind, birds, etc. At present it is virtually impossible to stop weeds being transported in stormwater. However, community education combined with long term weed control and revegetation programs can reduce their impact. Kikuyu and nasturtium infestation in c reek line receiving runoff from Bens Plac e and possibly the United Water pum p station It is concerning the presence of exotic grasses such as phalaris in areas with a “condition 1” rating - intact remnant native vegetation. It must be a high priority to control these infestations now as they are very persistent and difficult to control. Kikuyu has established close to the United Water pumping stations at the top of both creek lines. The lush growth is indicative of nutrient rich waste waters being discharged into the creeks. This must be addressed with United Water. A staged control program of the infestation is prescribed, working from the edges toward the centre of the infestation. This will reduce the incidence of erosion caused by killing large areas of vegetation in one spray application. Therefore, a staged weed control and revegetation program is necessary. Native grasses are widespread over the reserve and can be encouraged over the long term through timed slashing of fuel breaks, controlling weeds and direct seeding in areas with low densities. STRATEGY 3.2.5 Comprehensive vegetation condition mapping to be completed across Ashby Reserve Watiparinga 3.2.6 Relationship to Other Vegetation Ashby Reserve must not be managed in isolation to surrounding vegetation, as this will only increase the impacts of degrading influences. Ashby Reserve is an important link with a number of reserves and properties along the Hills Face Zone which form a sig nificant habitat corridor. The reserve’s relationship to other nearby vegetation is summarised below in Table 6. Severe olive infestation in Shepherds Hill Recreation Parks (NPWSA) Grey box and sheoak covered hillside in Watiparinga Reserve (adjacent to Ashb y Reserve) Page: 28 Ashby Reserve Maintenance Plan, June 2003 TABLE 6. ASHBY RESERVE ’S RELATIONSHIP TO NEARBY NATIVE VEGETATION Property / Reserve Distance Watiparinga National Trust Reserve Adjoining reserve Comments - Located on western boundary of Ashby Reserve - Grey box woodland Belair Reserve 280 m - North of Ashby Reserve, adjacent Sleeps Hill Reserve - Grey box woodland - Threats – seed source of feral olives and other weeds Sleeps Hill Reserve 120 m - North-west of Ashby Reserve - Grey box woodland - Threats – seed source of feral olives and other weeds Shepherds Hill Recreation Park (National Parks & Wildlife SA) 760 m - west of Ashby Reserve, adjoins Watiparinga Reserve - Red gum / SA blue gum / Grey box woodland – open woodland - Threats – enormous seed source of feral olives (see photographs on page 29) Saddle Hill Reserve 880 m - West of Ashby Reserve, adjoins Shepherds Hill Recreation Park and Watiparinga National Trust Reserve - Grey box woodland - Contains Cullen parvum & Eryngium rostratum which have state and Southern Lofty Botanical Region ratings. Cullen parvum also has a national rating. - Threats – seed source of feral olives and other weeds Ellis Avenue Reserve 1,100 m - south-west of Ashby Reserve, adjoins Shepherds Hill Recreation Park - Grey box woodland - Threats – seed source of feral olives and other weeds Private property surrounding Ashby Reserve (residential) Adjoining reserve - Located on all boundaries, except for western side. - Grey box woodland - Some threats resulting from residential development to the reserve includes the spread of weeds, illegal dumping, stormwater run-off, vandalism, inappropriate public use, fire and feral animals. - However, many of the properties still contain patches of remnant vegetation in gullies and creeks which provide fauna habitat and corridors. Some of these properties may be valuable for seed collection in future revegetation programs. 400 m - South of Ashby Reserve - Wittunga contains the root rot fungus Phytophthora cinnamomi which due to its proximity can be carried into Ashby Reserve. Although Wittunga's water run-off does not flow into Ashby Reserve, vectors can include vehicles, humans and equipment. Wittunga Botanic Gardens Page: 29 Ashby Reserve Maintenance Plan, June 2003 Property / Reserve Distance Comments Hills Face Zone Part of it - - Important part of the native vegetation across the Hills Face Zone. Within the City of Mitcham this includes Shepherds Hill Recreation Park on its far southwestern boundary to Leawood Gardens on its northeastern boundary, turning south to take in Belair National Park and Upper Sturt. This zones captures many Council Reserves, National Parks and Wildlife SA parks and bushland on private property. Each block of bushland is important to maintain habitat corridors and to reduce further fragmentation of native vegetation. A severe feral olive infestation in Shepherds Hill Recreation Park. This presents an external weed threat to Ashby Reserve. Shepherds Hill Recreation Park NPWSA Watiparinga Watiparinga Ashby Reserve Page: 30 Ashby Reserve Maintenance Plan, June 2003 3.3 FAUNA Koala near the railway line on eastern boundary of Watiparinga Reserve Council is unaware of any fauna studies conducted on Ashby Reserve. However, fauna surveys have been undertaken on nearby reserves: - Shepherds Hill Recreation Park (National Parks and Wildlife SA); Watiparinga National Trust Reserve. The fauna lists from these surveys are contained in Appendix 4. Fauna surveys have documented the presence of 71 avian species (indigenous and nonindigenous), 18 reptile species and 2 amphibian (frog) species. Within the fauna identified during the survey, 21 avian and 4 reptile species have conservation ratings (Table 7). It is likely that most, if not all fauna occurring on nearby reserves would also occur in Ashby Reserve as it is part of a habitat corridor between the survey sites. Ashby Reserve plays an important role in providing critical habitat for indigenous flora and fauna. During a field inspection in April 2002, a koala (Phascolarctos cinerus) was sighted in a river red gum in Watiparinga Reserve - along its eastern boundary which adjoins Ashby Reserve. It should be noted that koalas are not indigenous to the area and should be monitored for their impact on vegetation. Shepherds Hill Recreation Park (NPWSA) Watiparinga Watiparinga Page: 31 Ashby Reserve Maintenance Plan, June 2003 TABLE 7. INDIGENOUS F AUNA WITH A CONSERVATION RATING IN W ATIPARINGA NATIONAL TRUST RESERVE AND SHEPHERDS HILL RECREATION PARK (NPWSA). CLASS COMMON NAME SCIENTIFIC NAME AVES AVES Yellow Thornbill Eastern Spinebill AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES Little Wattlebird Dusky Woodswallow Sulphur-crested Cockatoo Galah Yellow-tailed BlackCockatoo Crested Shrike-tit Musk Lorikeet Superb Blue Wren Superb Fairy-wren Noisy Miner White-naped Honeyeater Southern Boobook Rufous Whistler Spotted Pardalote Scarlet Robin Common Bronzewing Tawny Frogmouth White-browed Babbler Acanthiza nana Acanthorhynchus tenuirostris Anthochaera chrysoptera Artamus cyanopterus Cacatua galerita AVES AVES Grey Currawong Rainbow Lorikeet REPTILIA REPTILIA REPTILIA Cunningham's Skink Barking Gecko Common Bearded Dragon/ Eastern Bearded Dragon Red-bellied Black Snake Pseudechis porphyriacus AVES AVES AVES AVES AVES REPTILIA CONSERVATION STATUS Metro SA MLR Region U C U C U Cacatua roseicapilla Calyptorhynchus funereus Falcunculus frontatus Glossopsitta concinna Malurus cyaneus Manorina melanocephala Melithreptus lunatus Ninox novaeseelandiae Pachycephala rufiventris Pardalotus punctatus Petroica multicolor Phaps chalcoptera Podargus strigoides Pomatostomus superciliosus Strepera versicolor Trichoglossus haematodus Egernia cunninghami Nephrurus milii Pogona barbata V V U V V C C C C C C U U C C U U C En U V V V V Source: Turner (2002) and Roberston (1999). (Refer to Appendix 3 for an explanation of keys to the conservation ratings of indigenous flora and fauna. Conservation Rating "South Australia" (NPW Act): E: endangered; V: vulnerable; R: rare. Conservation Rating "Southern Mount Lofty Ranges"(Carpenter & Reid): X: extinct; E: endangered; V: vulnerable; R: rare; K: indeterminate; U: uncommon; C: common; I: introduced. Conservation Rating "Metro Region" (Hutchinson): Ex: extinct; En: endangered; V: vulnerable; U: uncommon. Page: 32 Ashby Reserve Maintenance Plan, June 2003 4. RESERVE VALUES 4.1 CONSERVATION SIGNIFICANCE OF VEGETATION AND HABITAT Grey box woodland, which is the dominant indigenous plant community on Ashby Reserve, is of conservation significance. Turner (2001) reports that in 1995 Neagle upgraded its conservation rating to a priority 4 plant association (previously priority 5 by Davies , 1992), being poorly conserved in South Australia, that is much depleted but a few large examples still remaining in the state. The category: Grey box grassy low woodland on foothills and hill slopes of southern Mount Lofty Ranges, has an "endangered" status on the State's provisional listing of threatened ecosystems. Other features of conservation significance include: • 82 indigenous plant species recorded; • 13 indigenous plant species with Southern Lofty Botanical Region conservation rating ; • 3 indigenous plant species with a state conservation rating; • 71 avian species, 18 reptile species and 2 amphibian species surveyed on nearby reserves; • 21 avian species with a Mount Lofty Botanical Region conservation rating; • 3 reptile species with a Metropolitan Region conservation rating; • 2 avian species and 2 reptiles with a state-wide conservation rating; • Native grasslands containing kangaroo grass (Themeda triandra), spear grass (Stipa sp.) weeping rice grass (Microlaena stipoides var. stipoides) and iron grass (Loamandra spp) which are disappearing due to impacts from urban development and agriculture; • Part of a large habitat corridor along the western slopes of the Mount Lofty Ranges; • Adjacent to the Watiparinga National Trust Reserve, which has significant conservation, values, ie. 46 indigenous plant species with conservation ratings and 19 native bird species with conservation ratings; • Contains indigenous vegetation which provides an historical link to pre-European landscapes and guides future revegetation projects; • Potentially provides a seed source for future revegetation projects in and around Ashby Reserve. Page: 33 Ashby Reserve Maintenance Plan, June 2003 4.2 LANDSCAPE VALUES Ashby Reserve provides a unique, rugged landscape with its steep slopes, some in excess of thirty degrees facing south-east and north-east. Situated within the Hills Face Zone the reserve is part of the green backdrop of the City of Adelaide and its surrounding suburbs. Exposed rock outcrops of the Belair subgroup throughout the reserve provide spectacular views and are adjacent to caves on Watiparinga National Trust Reserve. The Belair Sub-Group was formed during the Late Pre -Cambrian, in excess of 750 million years old. From vantage points in the reserve, views of the Gulf of St Vincent are fantastic. As stated above, the reserve provides the community with a link to a pre-European landscape. Since European settlement, grey box woodland which once formed the expansive Black Forest of the Mitcham Hills and nearby plains was extensively cleared and used for agriculture. It is now a plant association requiring conservation and appreciation by the community. STRATEGY 4.1 Ashby Reserve provides critical habitat for indigenous flora and fauna, which some are of conservation significance. Ashby Reserve needs to be managed in ways that enhance habitat corridors, protect indigenous flora and fauna and foster regeneration of indigenous flora which fauna rely upon for habitat. 4.3 EDUCATIONAL, HISTORICAL OR SCIENTIFIC VALUES The reserve is part of a geology trail, which starts in Watiparinga and winds its way along the northern creek in Ashby Reserve. Council may wish to consider establishing an interpretive trail which provides information not only about the reserve’s geology, but also its flora, fauna and history. Ashby Reserve has an interesting European history. An account of the history of Watiparinga Reserve by Robertson ( pers. comm., 2002) states that Ashby Reserve was used by bullock teams during the 1890s when the railway line was constructed in Watiparinga Reserve. Workers would pass through Ashby Reserve and Watiparinga with bullock teams to the Belair Hotel. Page: 34 Ashby Reserve Maintenance Plan, June 2003 The main land-use of the reserve up until the mid-1960s was agriculture, primarily grazing. It appears that quarrying occurred in the most southern part of Ashby Reserve at the end of Lee Street. Scientific values include maintaining the genetic diversity of flora and fauna within and around the reserve. Revegetation projects should always source local provenance seed to maintain this gene pool. With a lack of scientific studies undertaken on Ashby Reserve it is difficult to assess such values. However, value must be placed on maintaining natural ecosystems simply for the sake of protecting indigenous flora and fauna, which continues to be destroyed through human activity. There is also the simple enjoyment and appreciation gained by many through interaction with the natural environment. There is also the utilitarian argument for conserving natural ecosystems such as the potential discovery of medical cures from plants and animals, carbon sinks, water purification and buffers. Page: 35 Ashby Reserve Maintenance Plan, June 2003 5. RESERVE MANAGEMENT OBJECTIVES Management objectives for the reserve must be consistent not only with relevant legislation such as the Local Government Act 1999 and Native Vegetation Act 1991, but also policies of the City of Mitcham. Council’s policies regarding the management and use of woodland reserves such as Ashby Reserve are listed below. Management objectives specified in this document are consistent with the following policies: City of Mitcham Policy 1.7.15 Biodiversity Policy: As custodian of lands containing significant remnant vegetation and threatened species, Council aims to ensure protection and enhancement of biological diversity in the City. The Council will: • Benchmark its procedures and decision making against legislation and strategies aimed at preserving and enhancing biodiversity; • Develop an understanding and appreciation among the community of the importance of biodiversity; • Identify, protect and enhance significant habitats and corridors by replanting and revegetating using local seed sources; • As far as practicable, provide support and supervision to community members protecting and enhancing biodiversity on Council lands; • As far as practicable, prevent the removal of fallen or standing dead timber from Council woodland reserves; • Minimise, as far as practicable, biodiversity impacts caused by: • Transferring weed seeds and pathogens; • Developing and operating recreation facilities; • Developing and managing trails; • Bushfire prevention works; Page: 36 Ashby Reserve Maintenance Plan, June 2003 • Construction works; • Use of herbicides and pesticides; • Erosion. City of Mitcham Policy 3.2.8 “Management of Woodland Reserves Using Watiparinga Procedures”: It is the long term policy of the City of Mitcham to support and promote the management of its semi-natural modified woodland reserves using procedures developed by the Watiparinga Management Committee at Watiparinga and the adjacent Ashby Reserve. City of Mitcham Policy 3.2.17 “Use of Woodland Reserves”: It is the policy of the City of Mitcham as to the recreational use of its semi natural modified woodland reserves, that action is taken which limits the use of those reserves to activities which do not significantly affect the natural qualities of the reserves. City of Mitcham Policy 3.1.22 "Water Use and Catchment protection Policy": To reduce potable water consumption and to protect watercourse health in the City. One of the statements is that Council will: act to protect and enhance the ecological value of watercourses in the City. Management objectives are also consistent with actions listed in Council’s Open Space Strategy 2001 under the following sections (not limited to): • 2. Meeting Statutory Obligations; • 6. Regional Open Space Linkages; • 8. Providing Quality Open Space; • 9. Open Space with Conservation Value and Natural Features of Significance. 5.1 ECONOMIC OBJECTIVES 5.1.1 To employ “best management” practices in the operation and maintenance of the reserve and use proven methodologies such as the Watiparinga Reserve model. This is aimed at delivering cost effective services to the community. 5.1.2 To benchmark management operations such as weed control, revegetation and grass slashing. This is not mandatory under the Local Government Act 1999 as the reserve is classified as 'undeveloped.' Page: 37 Ashby Reserve Maintenance Plan, June 2003 5.2 ENVIRONMENTAL OBJECTIVES 5.2.1 To protect and enhance natural ecosystems on the reserve; 5.2.2 To minimise and where practicable eliminate potential environmental impacts to other landholders from reserve management operations; 5.2.3 All management activities and public use of Ashby Reserve must not cause adverse environmental impacts where practicable. If environmental impacts are expected to result then it will be necessary for the City of Mitcham (and relevant stakeholders) to assess any management options available to minimise the impacts. If environmental impacts are considered unacceptable then a proposed activity must not proceed. 5.2.4 To protect and enhance indigenous flora, fauna and associated habitats within Ashby Reserve, recognising that many plants and animals on and near Ashby Reserve are of conservation significance. The reserve consists of a grey box woodland, which has priority four conservation rating and is also a threatened ecosystem with an "endangered" rating under South Australia's provisional listing of threatened ecosystems (unpublished); 5.2.5 To maintain and enhance indigenous flora and fauna across the western slopes of the Mount Lofty Ranges, which Ashby Reserve is an important component.; 5.2.6 To manage Ashby Reserve using methodologies developed by the Watiparinga Management Committee. 5.3 SOCIAL OBJECTIVES 5.3.1 To provide the local community with a natural woodland reserve which can be accessed and enjoyed for passive recreation with consideration given to all user groups; 5.3.2 To provide the community with open space; 5.3.3 Council in consultation with bike users will look at options for sustainable bike trails in the reserve; 5.3.4 To provide the community with a link to pre-European landscapes and habitats; 5.3.5 To provide the community with opportunities to learn about the Aboriginal, European and natural history of Ashby Reserve; 5.3.6 To manage the reserve in accordance with landholder obligations specified in the Country Fires Act 1999; 5.3.7 To reduce fuel loads through removal of exotic plants, establishment of native grasses and timed slashing of fuel breaks. Removal of native plants in accordance with “exemptions” under the Native Vegetation Act 1991 will only be undertaken where a legitimate hazard has been identified. Page: 38 Ashby Reserve Maintenance Plan, June 2003 6. MANAGEMENT ISSUES & STRATEGIES 6.1 CONSERVATION OF INDIGENOUS FLORA AND FAUNA 6.1.1 Sites or Features of Significance To guide management of Ashby Reserve’s indigenous flora it is important that all vegetation (indigenous, natives and exotics) is mapped with a condition rating. Once this has occurred appropriate strategies for the entire reserve can be prescribed and implemented. Weed control programs will be based upon such maps. Weed control in native bushland will have a primary focus on removing weeds from areas with indigenous vegetation that contain relatively few weeds (condition rating 1). Areas of bushland which are highly degraded, that is dominated by weeds with some indigenous plants (condition rating 3) will be a low priority. However, degraded areas may receive high priority when: • they contain indigenous flora with a conservation rating; • they are adjacent to houses where weeds must be removed to reduce fuel loads; • they contain priority weeds species in low abundance. The importance of protecting and conserving all indigenous vegetation (whether or not they have a conservation rating, are high or low in abundance or are in pristine areas or degraded) can not be stressed enough. All remnants must be safe guarded and managed appropriately for their survival. With this in mind, remnants of particular importance from the vegetation maps (Figures 7a and 8) include: • Intact Remnant Vegetation , Grey Box, Drooping Sheoak, Grey Box and Blue Gums and River Red Gums (Figure 7a) – these vegetation types all contain grey box woodland which has a priority 4 conservation rating (Neagle, 1995). However, the vegetation type “Intact Remnant Vegetation” contains the lowest weed infestations amongst indigenous flora. Therefore, these areas should receive the highest priority by management, first concentrating on the larger remnant patches located above the Grevillea Way fire track. Page: 39 Ashby Reserve Maintenance Plan, June 2003 • Plants with a Conservation rating – although some indigenous flora may be in vegetation types with a lower priority, it is critical to manage these isolated remnants and degrading influences upon them. This will ensure that these remnant patches survive and may be used as a seed source for future revegetation project throughout the reserve. STRATEGY 6.1.1 Protect and conserve indigenous flora by removing degrading influences upon them and undertaking appropriate management practices to encourage regeneration. 6.1.2 Natural Regeneration Regeneration is occurring throughout the reserve and must be considered the primary way in which indigenous flora is re-established in woodland reserves. Regeneration is nature’s way in which the following are selected: • Species composition; • Species density; • Species distribution. The random regeneration that naturally occurs is difficult to replicate in revegetation programs. Regeneration is also extremely cost effective. For Council to purchase tubestock, stakes, grow bags, weed mats and plant the tubestock, it costs approximately $5.50 per plant. Regeneration still requires management to create suitable growing conditions which mostly entails weed control. There are substantial costs associated with good weed control, however it is required for both regeneration and revegetation programs. Some methods that encourage regeneration include: • Bradley method of weed control – (i) work outwards from good bush areas towards areas of weeds, (ii) make minimal disturbance to the environment, and (iii) do not over clear; • Reduce degrading influences – such as dumping of garden refuse, new walking trails into bushland and stormwater containing high nutrient loads and/or causing erosion from discharge; • Maintaining native grasses and ground covers in fuel breaks by annual slashing, avoid blanket spraying which will produce bare earth and later be colonised by severe weed infestations. These are often sites from which weeds move deeper into a reserve; STRATEGY 6.1.2 Management actions are to focus on establishing indigenous flora by regeneration (natural process) as the primary method. This will be achieved through minimal disturbance weed control (Bradley / Watiparinga method) and minimising degrading influences. Page: 40 Ashby Reserve Maintenance Plan, June 2003 6.1.3 Revegetation As outlined above revegetation with indigenous plants will only be a supplement to regeneration. Revegetation programs must always use local provenance seed (collected from the site) to maintain the genetic diversity of plants within the area. Revegetation must always complement regeneration and never thwart natural processes. It should only be considered when it is deemed a cost effective priority as part of an overall reserve assessment of vegetation priorities. According ot Robertson (1994 p9) there may be a need to supplement natural regeneration at particular sites by seeding or planting with a clear goal to: • Prevent weed re-invasion; • Suppress troublesome weeds; • Provide particular fauna habitat; • Add to the appearance of degraded sites and foster public appreciation; • Stabilise eroding areas; • Rehabilitate old quarries. In this context, there are revegetation opportunities within Ashby Reserve and include: • Creek lines – high infestations of exotic grasses which require significant resources for weed control and revegetation; • Stormwater Outlets – onto Ashby reserve are causing serious rill and gully erosion. These areas must be stabilised, weeds controlled and quickly revegetated to reduce further soil erosion. Significant budget allocations are required; • Fuel Breaks – where clearance of indigenous plants and weeds are required to establish a fuel break, revegetate using indigenous grasses and ground covers to stabilise soil and reduce weed invasion; • Dumped Refuse – once removed it may be suitable to direct seed native grasses, trees and shrubs if the area is devoid of indigenous plants; • Exotic grass and herbaceous weed infestations – large infestations such as phalaris may require gradual removal by spraying then revegetating with indigenous grasses, shrubs and trees. Trees would normally be planted before grasses as it can be difficult to distinguish between some exotic and indigenous grasses. Introduction of native grasses can be done once trees have established and phalaris has been adequately controlled. Page: 41 Ashby Reserve Maintenance Plan, June 2003 Some guidelines to follow during revegetation include: • Always use indigenous plants, collect local provenance seed; • Do not disturb areas which shows signs of regeneration. Undertake a site analysis when considering revegetation; • Consider revegetation to re-introduce species or those low in numbers; • Use pioneering tree and shrub species in degraded areas, use plants that are taller than the weeds you are controlling. This assists in follow up maintenance of the site; • Where practicable, for each tubestock planting use a blue marker stake, grow bag and weed mat (370 x 370 mm) to maximise its chance of survival – do it right the first time! Today’s opportunity may not present itself tomorrow. Source tubestock from growers that: • use local provenance seed; • have current seed collection permits for the area; • grow quality plants (not "pot-bound," "leggy" or haven't been sun-hardened, etc); • have quality assured hygiene practices to prevent the spread of Phytophthora cinnamomi (Pc). STRATEGY 6.1.3 Revegetation is only a supplement to regeneration. Revegetation must adhere to suggested guidelines and best practice methods as they are developed. Revegetation should first focus on establishing pioneering species in specific degraded areas of the reserve. 6.1.4 Seed Collection Seed collection from Ashby Reserve can be utilised for revegetation programs within the reserve. However, unrestricted collection can lead to lower rates of regeneration and damage to native plants and habitats. In Randell Park, Robertson (1994 p9) suggests allowing limited non-commercial seed collection using non-destructive methods, by collectors with a permit from the Department of Environment and Natural Resources. This is an appropriate policy to adopt for Ashby Reserve. It was also recommend that the activity be monitored and the policy reviewed in respects to Council’s own requirements for seed. Care must be taken not to harvest seed from non-indigenous native plants in the reserve for use in and around the reserve. Page: 42 Ashby Reserve Maintenance Plan, June 2003 STRATEGY 6.1.4 Allow non-commercial seed collection of common species in the reserve by permitted individuals/organisations for planting in the local area. Seed collection must not remove more than 10% of available seed from the reserve. 6.1.5 Fauna Habitat A lack of knowledge of fauna habitats for grey box woodlands exist. It is a high priority to update Council’s database and records of emerging studies and best practice techniques in managing grey box woodlands or similar vegetation associations. When controlling weed infestations it is important to consider indigenous flora and fauna that may be displaced. If management actions will impact on a species it will be necessary to modify the planned works, ie. stage works, revegetate with suitable indigenous plants to replace lost habitat. It may even be necessary to refrain from weed control in an area for a period until suitable habitat is provided or a relocation program is undertaken. STRATEGY 6.1.5 (a) Assess fauna habitats or their potential in areas for programmed works. If works are likely to impact on fauna habitats then STOP and re-assess works, techniques and priorities – do we need to undertake these woks now? Can we wait until substitute habitat is provided? etc. 6.1.5 (b) Gather information on grey box woodland ecosystems and incorporate findings into management practices where practicable. 6.1.6 Weeds Ashby Reserve is in good condition regarding the relatively isolated infestations of invasive woody weeds such as olives, blackberry, desert ash, boneseed and Cape broom. This is remarkable considering prior land-uses and the typical pattern of weed invasion in grey box woodland throughout the Mitcham Hills. This can be attributed to excellent weed control and revegetation works undertaken by Enid Robertson and university students on behalf of the Watiparinga Management Committee from 1975-1994. Since 1994 the only work undertaken by Council has been annual slashing of fuel breaks and grading of fire tracks. A Bush for Life (MC018) site established in the 1990s has also made an excellent contribution to bushland weeding and regeneration of indigenous plants near the end of Gulfview Road (Appendix 8). Whilst woody weeds infestations are relatively small and isolated, herbaceous weeds such as phalaris and plantain are not. These weeds are common throughout grazed woodlands and significantly impact on indigenous understorey flora. A number of phalaris infestations were observed in the northern sections of the reserve. Page: 43 Ashby Reserve Maintenance Plan, June 2003 It is apparent that on-going weed control is necessary, especially where urban development impacts upon the reserve through adjoining properties, stormwater, illegal dumping and recreation. Through these impacts, weeds are always spread. Even if these impacts could be stopped, weeds would continue to be spread from vectors such as birds, foxes and rabbits. It will never be a question of "is weed control required?" but simply a question of "what level of control is required?" and subsequently "what resources are available?" In the long term, as weeds are progressively removed and bushland regenerates and condition ratings improve, resources required for weed control will reduce. Areas of particular weed importance include (Figure 7b): • South African Weed Orchid (Disa bracteata) – observed growing in the extreme northeast corner of the reserve in intact native vegetation. This weed probably has a wider distribution and must be the highest priority for any weed control program to prevent its spread throughout the reserve and neighbouring properties; • Isolated infestations of blackberry, Cape broom, boneseed, olive and desert ash. These weeds were successfully targeted from 1975-1994 and must not be allowed to reestablish; • Exotic plants and weeds that are escaping from residential properties adjoining the reserve. In some instances these have been planted in the reserve in areas with a native vegetation condition rating 1. Residents must be educated about the impacts of “garden escapes” and these species must be removed from the reserve. An exotic species may be retained only if it does not have a potential to become invasive; • Both creek lines which receive stormwater and possible overflow of effluent from the United Water pump stations. The high nutrient loads and moist conditions are feeding kikuyu infestations which are acute in the creek below Bens Place. Phalaris and a range of other weeds are proliferating in the creeks and will be the most difficult to control within Ashby Reserve; • End of Lee Street – stormwater entering the reserve is responsible for proliferation of kikuyu, couch and ash trees; • Drainage Lines carrying stormwater to creeks – are harbouring large phalaris infestations. A good example is the extreme north-western corner which receives stormwater from Gloucester Avenue and upper section of Grevillea Way; • Fire tracks – annual grasses are established along fire tracks due to disturbance. Control is required to reduce invasion from tracks into bushland; • Revegetation with Non-indigenous Natives – is an area of concern in the reserve. Whilst the trees and shrubs reduce weed invasion, erosion and provide habitat they may become weeds. A long term goal is to replace these plants with indigenous trees and shrubs in a revegetation program. Volunteers and students under the direction of Enid Robertson have progressively removed many non-indigenous natives in the reserve. Reserve at the end of Lee Street Page: 44 Ashby Reserve Maintenance Plan, June 2003 6.1.6.1 Weed Control Principles As stated earlier, management of the reserve will be based upon methodologies developed by the Watiparinga Management Committee. For weed control this will require “minimal disturbance” techniques. Principles of the “Bradley” method are similar to the Watiparinga methodologies developed by Enid Robertson, and include: 1. Work outwards from good bush areas towards areas of weed – ie. start weeding in bushland with a condition rating 1 and where there are the least weeds. Gradually move outwards to areas with a lower condition rating. 2. Minimal disturbance to the environment – bare or disturbed soil is an invitation for weed invasion. Weed control in bushland is entirely different to weed control in agriculture systems, where large areas may be sprayed or cultivated and sown to a crop or pasture to quickly cover the soil. Often selective herbicides can be used to reduce competition within the crop. In native bushland blanket spraying of weeds is not an option as many indigenous species exist which will be killed if sprayed. Therefore, when using herbicides they must be carefully selected to minimise impacts on other plants, soil, water and fauna. Minimal disturbance techniques will minimise soil disturbance by employing methods such as cut and swabbing, spot spraying, hand-pulling, careful grubbing, brush cutting exotic grasses before seed set, etc. 3. Do not over clear – over clearing will also invite further weed invasion by exceeding the rate at which the weeded areas can regenerate with indigenous plants. The extent of weeding must be matched to regeneration rates of the surrounding bush. One exception to the Bradley method is that in some instances it may be necessary to target small infestations of certain weed species irrespective of the condition of native vegetation without necessarily removing all weed species from that area. This is to prevent highly invasive species from becoming established throughout the reserve. Some of the weeds that fit into this category occurring in the reserve include: • • • • • • • • • • • • • South African weed orchid Cape Broom Blackberry Olive Lavender Corkscrew Willow Nasturtium Fennel Pampas Grass Pussy tail White Arum Lily Mile-a-minute, Cape Ivy Kikuyu Disa bracteata (formerly Monadenia bracteata) Genista monspessulana Rubus fruticosa Olea europaea Lavandula stoechas Salix matsudana ‘Tortuosa’ Tropaeolum majus Foeniculum vulgare Cortaderia selloana Pentaschistis thunbergii Zantedeschia aethiopica Senecio milkanioides Pennisetum clandestinum The weed of most concern from the list is South African weed orchid and must receive the highest priority for eradication. Page: 45 Ashby Reserve Maintenance Plan, June 2003 6.1.6.2 Weed Control Techniques The following techniques listed by Roche (2001) are suited to minimal disturbance weed control in native vegetation, such as Ashby Reserve. Brush cutting has been added to the list as its integral to a grassy woodland such as Watiparinga and Ashby Reserve. Hand Weeding When the soil is soft enough that plant roots can be removed and before flowering has occurred, ease the plant from the ground. Remove any soil attached to the roots and ensure the roots are not left in contact with the ground. Repair site damage by gently pressing back the soil and replacing any surface mulch. Leave plants scattered, not piled up. If the plant is in seed it must be removed from the site. Frill and fill or Drill and fill Make several horizontal cuts with an axe or similar tool (frill) or drill several holes (drill) around the trunk at a downward angle into the cambium (outer green bark). Within 15 seconds of making each cut or hole, brush or inject neat glyphosate into the exposed cambium. Do not ring bark as this promotes suckering in some species. Suitable for trees while actively growing. Glove of Death A tool devised by local bushcarers. Glue a piece of chux (or similar material) over the thumb and forefinger (palm side) of a heavy-duty chemical resistant glove. Paint the chux with neat glyphosate, grasp the plant close to the ground between the gloved thumb and forefinger, and drag your hand up the plant. This technique is suitable for plants with strap-like leaves. Cut and Swab With loppers, cut at an angle (to maximise exposed cambium area) through the trunk of the weed below any branching. Within 15 seconds of making the cut, swab the exposed cambium with neat glyphosate using a Yates weedbrush or a can of glyphosate and a small paintbrush. Suitable for woody weeds and small trees. Weed brush Use neat glyphosate in a Yates weedbrush or use a small paintbrush and a can of glyphosate. Suitable for weeds with a basal rosette. Spot spraying Use a small knapsack spray unit. Do not fully pressurise the knapsack (a few pumps only) so the herbicide flows in large droplets rather than a mist, which improves accuracy and minimises off-target damage due to spray drift. Suitable for weeds which form dense clumps or thickets with no local plants underneath. Grub With minimal possible soil disturbance, remove *Disa (formerly Monadenia) bracteata (South African weed orchid) and its tubers with as little disturbance as possible. Lever the plant out using a narrow blade (~2cm wide) and immediately bag to contain the thousands of dust-like Page: 46 Ashby Reserve Maintenance Plan, June 2003 seeds. Repair the site damage the best you can by pressing the soil down slightly with your foot and replacing surface mulch. Brush cutting Target annual exotic grasses before they set seed in spring. This is particularly suited to fuel breaks and open grassland where timed brush cutting will disadvantage exotic grasses and favour native grasses. This practice has proved successful in Watiparinga. Care must be taken to avoid damage to indigenous plants and introduction of weeds from equipment used on other parts of the reserve, and between reserves. For a comprehensive list of weed control techniques and timing refer to Appendix 5 for a weeding calendar. 6.1.6.3 Weed Hygiene To minimise the spread of weeds and introduction of new species between reserves, weed hygiene is a top priority. Weed hygiene practices can also be developed in association with those for Phytophthora cinnamomi (Pc). Simple weed hygiene practices include: • Thoroughly wash down and clean all equipment, vehicles, tools and boots before entering the reserve. For Pc hygiene this would include disinfection; • Do not transport any organic material to the reserve which may contain weed seeds, stems and roots; • Each day (where practicable) commence weed control in areas with fewest weeds and/or least invasive and progress to areas with most weeds and/or most invasive weeds ; • Do not slash or brush cut areas with matures seed heads. However, this rule may be broken during annual slashing of fuel breaks as coordinating contractors, staff and equipment place restrictions on timing of cuts. Each season’s weather also plays a major role as maturity of seed heads vary and even the number of cuts required. Page: 47 Ashby Reserve Maintenance Plan, June 2003 STRATEGY 6.1.6.3 (a) Only minimal disturbance weed control is to be used on Ashby Reserve according to the Watiparinga Reserve and Bradley methods. 6.1.6.3 (b) Adopt weed and Phytophthora cinnamomi (Pc) hygiene practices for Council employees, contractors, volunteers, local residents and users of the reserve. 6.1.6.3 (c) Implement an action plan to address weed control within the reserve based upon conservation values, fire management and priority weeds. 6.1.6.3 (d) Vigilance is required along edges of the reserve where garden escapes are introduced. Regular patrols of the boundaries with prompt removal of garden escapes. 6.2 PUBLIC USE 6.2.1 Recreation Recreation in Ashby reserve must be consistent with Objective 5.3.1: To provide the local community with natural woodland reserve which can be accessed and enjoyed for passive recreation. Passive recreation activities that are appropriate in Ashby Reserve include: • Bushwalking; • Jogging; • Painting; • Photography; • Bird watching; • Cycling – only on fire tracks. However this is often ignored and new tracks are formed through bushland which cause significant damage to native vegetation. It is important that infrastructure is provided to guide the above activities to minimise impacts on the natural environment. This may consist of: • Interpretive signage posted at reserve entrances – stating recreation activities allowed / prohibited, importance of native vegetation on the reserve, map of trails, etc; • Interpretive signage along tracks – regarding vegetation, history, geology and management objectives; • Trail markers; • Well maintained walking tracks; • Fencing off indigenous vegetation of conservation significance or considered high value. Page: 48 Ashby Reserve Maintenance Plan, June 2003 During a site visit mountain bike riders were encountered on the track below Banksia Crescent. This activity can be permitted provided that bike riders stay on defined fire tracks. However, in other woodland reserves riders have formed new tracks in bushland. This results in damage to native plants, habitats, erosion, spread of weeds and even Phytophthora cinnamomi (Pc). Recreation pursuits such as mountain bike riding which have an increased element of risk, may also increase public liability issues for Council. There is not only the risk of the rider being injured through a fall, but also non-riders (ie. bushwalkers) by sharing tracks with bike users. Consultation may be required to assess the current recreational activities in Ashby Reserve and community views. Instead of immediately erecting signage prohibiting activities, a consultative process may identify activities which can occur through minor changes to the reserve. The walking track heading west from Gulfview Road leading down to the junction of the two creeks is eroding in the steeper sections (Fig 9). This requires remedial works to halt further erosion (Figure 9.). The erosion may be increased by mountain bike riding. Access to the Reserve is by at least nine points (ignoring adjacent private property). This is a high number of entry/exit points and therefore increases the need for signage and impacts on native vegetation. Management of these exit/entry points also increases. The entry/exits points include: 1. Baeckea Place – fire track; 2. Hill Road; 3. Lee Street; 4. Gulfview Road; 5. Grevillea Way (lower end)– approximately 180 metres of un-fenced road frontage; 6. Grevillea Way (upper end) – approximately 250 metres of road / fire track frontage not fenced and dissects Ashby Reserve; 7. Banksia Crescent; 8. Watiparinga - entry through Gloucester Avenue (north-west corner of Ashby Reserve) 9. Watiparinga – geological trail along creek. Consideration should be given to closing entrances that serve no purpose and do not have a track leading from them, this would include: • Hill Road – fence; • Lee Street – increase fencing; • Grevillea Way (lower end) – fence along road and make an entry point near the United Water pump station; Page: 49 Ashby Reserve Maintenance Plan, June 2003 Grevillea Way – fence off entrances to the portion of reserve on the north side of the fire track Page: 50 Ashby Reserve Maintenance Plan, June 2003 which contains “intact remnant native vegetation.” Fence reserve on the southern side of the fire track, but consider maintaining an entrance between the Grevillea Way fire track and track along the rear of houses on Banksia Crescent; It is a high priority to fence the reserve north of the Grevillea Way fire track as it contains the largest area of “ intact remnant native vegetation” in Ashby Reserve. Continued public access will increase degradation. STRATEGY 6.2.1 (a) Ashby Reserve is a natural woodland which can be accessed and enjoyed by the community for passive recreation. Council needs to provide some infrastructure to guide passive recreation within the reserve in an effort to minimise adverse impacts. 6.2.1 (b) Community consultation should be undertaken to determine current recreational uses occurring in the reserve and community needs. An outcome of the consultation may be that current non-complying activities be permitted provided adequate planning and onground controls are implemented. This may control prohibitive activities, which at present are uncontrolled, ie. mountain bikes. 6.2.1 (c) The number of entry/exit points to Ashby Reserve need to be reduced by about 50%. This should reduce damage to native vegetation, signage and management of these areas. 6.3 DRAINAGE Rill and gully erosion is a serious issue in Ashby Reserve, as with many undeveloped woodland reserves in the Mitcham Hills. Most of the stormwater outlets are located only within a few metres of the kerb, and may be in excess of 100 metres from the creek line. Therefore, the high velocities that are discharged quickly erode the soil in between the discharge outlet and creek. These areas will need to be the focus of expensive remedial works if not rectified in the short term. However, erosion will continue if the stormwater outlets are not designed to halt their inherent problems. Piping the water into the creek with dissipaters at the end to reduce the discharge velocity is one possible solution. Impacts of stormwater and of the outlets include: • Rill and gully erosion – soil loss and landscape change; • Stream bank undercutting and bed scour; • Increased sedimentation within the catchment which increases turbidity and nutrient loads; • Increased sedimentation kills aquatic biota; • Increased sedimentation chokes infrastructure further downstream; • Increased sedimentation reduces channel capacity and can increase flood levels; • Destruction of indigenous vegetation and promotion of weeds; Page: 51 Ashby Reserve Maintenance Plan, June 2003 • Increase of heavy metals and nutrients (particularly nitrogen and phosphorous) which impact on aquatic biota and promotes a monoculture of alien species; Stormwater outlets that require urgent attention include (Fig 10): 1. Grevillea Way (lower end) - producing three separate gullies. Eventually these gullies will coalesce to form a large single gully. 2. Grevillea Way (upper end)- the cement stormwater pipe is uncoupled causing water to escape from this break. At the end of the outlet is a stone, which deflects water to either side. This spreading of water is actually widening the area that is actively eroding. Uncoupled stormwater pipe 3. Gully erosion from stormwater off Grevillea Way (upper end) Grevillea Way – stormwater has stripped soil down to bedrock between the creek and walking track which runs parallel with Grevillea Way. A sediment trap for a culvert and gabion-type sediment trap for a stream. Source: Buchanan, R. A. (1994) Page: 52 Ashby Reserve Maintenance Plan, June 2003 Page: 53 Ashby Reserve Maintenance Plan, June 2003 Construction plans for silting basins. Source: Buchanan, R. A. (1994) Page: 54 Ashby Reserve Maintenance Plan, June 2003 STRATEGY 6.3 Council to consider undertaking remedial works to stop further erosion caused by stormwater discharge from outlets. Remedial works may involve extending stormwater outlets into the creek with dissipaters at the end of the outlets. Eroded sections must be stabilised and revegetated with indigenous plants. Ignoring the problem now will exasperate gully erosion impacts and multiply remedial costs in the future. Of course, Council action will be dependent upon budget allocations, if any at this stage. Perhaps this can be addressed in annual budget reviews. 6.4 DUMPING Illegal dumping of garden refuse, soil and general rubbish is a common problem on reserves, especially those located in urban areas. Impacts from rubbish dumping include aesthetics, spread of weeds, damage or death to indigenous plants, destruction of habitat and release of toxic compounds into the soil, air and/or water. Once rubbish is dumped onto a reserve, it often encourages others to do the same. Therefore, it’s important to remove the rubbish promptly. Dumping in Ashby Reserve is evident at the following locations and must be acted upon promptly by Council: • Rear of houses on Dryandra Drive – garden refuse; • Rear of houses on Banksia Crescent and fire track / E&WS easement - garden refuse; • United Water pump station, Grevillea Way; • Rear of house on Baeckea Place – soil from excavations; • Rear of house on Grevillea Way - loam STRATEGY 6.4 (a) Council should regularly patrol the reserve for rubbish dumping, especially at the rear of houses adjoining Ashby Reserve. Council officers to issue notices to residents to remove their rubbish and dispose of in a lawful manner. 6.4 (b) Council officers to arrange prompt disposal of rubbish on reserves where the offender can not be identified 6.4 (c) It is recommended that locked gates are installed at both ends of the fire track below Banksia Crescent and Grevillea Way (E&WS easement) to limit access to essential services. Page: 55 Ashby Reserve Maintenance Plan, June 2003 6.5 FIRE 6.5.1 Fire Risk Factors Undeveloped reserves often present an immediate fire hazard to adjacent properties and to surrounding suburbs. In the case of Ashby Reserve, there are a number of factors which increase the fire hazard: • Located on the western slopes of the Mount Lofty Ranges – high fire risk region; • Terrain – steep terrain on the majority of the reserve makes it difficult to access areas to extinguish a fire. Fire will travel faster uphill, as opposed to burning on relatively flat terrain or downhill. Houses surrounding the reserve are all situated at the top of slopes, where fire(s) will most likely be travelling toward; • Vegetation – open grassy woodland. Dry grasses provide fine surface fuel loads enabling a small fire to rapidly gain momentum and burn through an area quickly; • Adjacent Reserves – part of a large network of undeveloped woodland reserves including Watiparinga National Trust Reserve, Shepherds Hill Recreation Park, Saddle Hill Reserve, Sleeps Hill Reserve and Belair Reserve. A fire occurring within any of these reserves can easily spread to Ashby Reserve; • Community Assets – housing adjoins Ashby Reserve on its northern, eastern and southern boundaries. A fire starting in Ashby Reserve has the potential to spread to other properties and surrounding suburbs; • Deliberate Fires – the risk may increase with the reserve being situated in an urban area and easily accessed from many points; 6.5.2 Fire Protection Measures Under the Country Fires Act 1999 Council, like other landholders has an obligation to prevent fires from occurring on its property. If a fire does occur on its property then Council has an obligation to prevent the spread of fire to other properties. In consideration of this, fuel load reduction on the reserve is the most effective method in which the City of Mitcham can reduce the potential fire hazard that exits. It is also one of the few tools available to Council in reducing the fire hazard. Page: 56 Ashby Reserve Maintenance Plan, June 2003 Fire protection measures observed in Ashby Reserve undertaken by the City of Mitcham and the Watiparinga National Trust Reserve include: • Fuel Load Reduction – volunteers and students with the Watiparinga National Trust (19751994) have removed woody weeds such as olives which increase elevated fuel loads and are extremely flammable due to the high oil content in their foliage. During this period they also slashed exotic and indigenous grasses in accessible areas of the reserve situated at the end of Gulfview Road (former Gulfview Reserve); • Fuel Breaks – the City of Mitcham annually slashes exotic and indigenous grasses along reserve boundaries adjoining residential properties. This is in accordance with Council’s obligations under the Country Fires Act 1999, s.41 (1)...to protect property on the land from fire and to prevent or inhibit the outbreak of fire on the land, or the spread of fire through the land. In the Mitcham Hills, the District Bushfire Prevention Committee recommends a five-metre wide fuel break in accordance with listed exemptions under the Native Vegetation Act 1991. A fuel break has not been established along the reserve’s south-eastern boundary (Figure. 11) where houses from Bens Place, Melton Street and Gulfview Road back onto the reserve. Council's fire prevention officer has viewed the draft maintenance plan and has recommended that a fuel break be established along this boundary. Native vegetation would need to be removed in accordance with listed exemptions under the Native Vegetation Act 1991. This area contains indigenous orchids and other indigenous plants which are not widespread throughout the reserve. Therefore, disturbance must be minimised. A heritage agreement under the Native Vegetation Act 1991 exists on an adjacent property (96 Gulfview Road - see Figure 11). • Fire Tracks – three tracks have been installed: - Southern boundary - enter from Gulfview Road, and exit Baeckea Place. The track is in good condition; - Northern boundary - enter Grevillea Way/Gum Way intersection near the United Water pump station and travel south-west where it exits between houses on Banksia Crescent. This narrow track runs along an E&WS sewer easement at the rear of five properties on Banksia Crescent and is in fair condition. According to Zybek (pers. comm., 2002) the CFS have refused to drive fire trucks along this narrow track due to its poor condition and the inability to turn vehicles around at the end of the track. According to Deer (pers. comm., 2002) there is a proposal to extend this fire track along the rear of houses on Gloucester Avenue, connecting with the unmade Gloucester Avenue Reserve. The Country Fire Service has indicated that this is a priority and should be completed when funding is available. Subsequently, the Mitcham District Bushfire Prevention Committee passed a motion in 2001/02 to establish a fire track in this location. Initial estimates have indicated the fire track would cost between Page: 57 Ashby Reserve Maintenance Plan, June 2003 $40,000-60,000 to construct. This includes the installation of piping under the track for stormwater runoff, cut-fill and grading the track to an appropriate standard. The National Trust must be consulted as several trees would need to be removed from Watiparinga to facilitate the fire track. At least one stakeholder does not support the proposed fire track extension and has questioned its purpose as the Gloucester Avenue properties having a south-easterly aspect - although the adjacent Banksia Crescent properties have a direct westerly aspect. A thirty metre fuel break was maintained behind the properties on Gloucester Avenue and the north-western section of Banksia Crescent by the City of Mitcham during the 2001/02 fire danger season. The fuel break was formed by brush cutting exotic grasses from the rear of properties, down into the adjacent gully. The City of Mitcham regards this an important bushfire prevention strategy to be maintained each year. - Northern boundary – situated above the second track and links separate bituminised sections of Grevillea Way. This track is in good condition and dissects Ashby Reserve leaving a small section of reserve north of the track. Residents use this track as a main thoroughfare and subsequently requires regular grading. As a result of the traffic dust impacts upon nearby houses. There is a potential for impacts on native vegetation from illegal dumping along the track. Page: 58 Ashby Reserve Maintenance Plan, June 2003 Brush cut 30 me tre s into g ully ß ß 96 Gulfview Rd ß HERITAGE AGREEMENT (NATIVE VEGETATION ACT 1991) PROPOSED FIRE TRACK GATES PROPOSED FIRE TRACK Page: 59 Ashby Reserve Maintenance Plan, June 2003 STRATEGY 6.5.2 (a) Continue weed eradication throughout the reserve to reduce fuel loads by targeting woody weed species and exotic grasses such as phalaris. 6.5.2 (b) Promote and establish indigenous grasses, herbs and ground covers within fuel breaks to reduce fuel loads, slashing and weed control costs. Do not plant indigenous trees and shrubs within 15-20 metres of reserve boundary to ensure the effectiveness of fuel breaks are not compromised. Form linkages with CFS Community Fire Safe groups to raise awareness. 6.5.2 (c) Promote indigenous vegetation within Ashby Reserve to provide a competitive vegetation cover against weeds and reduce the overall biomass in the reserve. Dense olive infestations dramatically increase the biomass and elevated fuel loads of grey box woodlands. 6.5.2 (d) It is advisable to maintain a standard five-metre fuel break along all boundaries, which adjoin residential properties. Maintain a thirty-metre fuel break at the rear of properties on Gloucester Avenue and the north-western section of Banksia Crescent. 6.5.2 (e) Council should install a five-metre wide fuel break along the reserve's south-eastern boundary where houses from Bens Place, Melton Street and Gulfview Road back onto the reserve 6.5.2 (f) Maintain all fire tracks in good condition. Ensure grader operator does not continue to form piles of loose dirt and rubble along the track and push / dump graded dirt into bushland. Past operations have increased weed invasion along the track and into bushland. 6.5.2 (g) Unless alternative options can be found, it is recommended that a fire track is constructed at the rear of properties on Banksia Crescent and Gloucester Avenue - when funding becomes available in compliance with CFS recommendations. Consultation with the National Trust and Native Vegetation Council is required as native vegetation would be cleared. 6.5.2 (h) Council should ensure that residential properties adjacent to the reserve are implementing bushfire prevention practices, have adequate fuel breaks and do not dispose of rubbish in Ashby Reserve. 6.5.2 (i) Council to educate the local community on bushfire prevention practices, which can be assisted through the CFS community awareness programs. 6.5.2 (j) Council to assist in establishing a “reserve watch” to reduce illegal dumping in the reserve, prohibited recreation activities, loitering and arsonists. 6.5.2 (k) Ashby Reserve to be included in the District Bushfire Prevention Plan with its maintenance plan (particularly fire section) reviewed by the District Bushfire Prevention Committee. Upon advice from the Committee, the draft maintenance plan for Ashby Reserve will be updated (if required) for endorsement by the committee. 6.5.2 (l) Scope options to minimise impacts of the northern boundary fire track on residents. Page: 60 Ashby Reserve Maintenance Plan, June 2003 6.5.3 Ecological Fire Management This maintenance plan can not adequately assess the appropriateness of prescribed burns for Ashby Reserve. This would need to be undertaken as a separate study and must be consistent with the objectives and strategies of this plan. Consent is required from the Native Vegetation Council for burning native vegetation as it is considered clearance under the Native Vegetation Act 1991, when used outside of listed exemptions, eg. five metre fuel breaks. Prescribed fires can be beneficial for regenerating indigenous plants that rely upon fire for germination. Fire can also be used as a tool in weed control programs. However, fire is a double edged sword for weed control as many weed species germinate profusely after a fire. Therefore, an intensive follow up weed control program is required following a fire. Robertson (1995) states that frequent fires (10-30 year intervals) have historically occurred in much of the fragmented vegetation in the Mount Lofty Ranges and have been associated with its degradation. Whilst prescribed burns can immediately reduce fuel loads, it will likely increase weed invasion and only compound problems for those responsible for weed control. Weed infestations tend to increase and a vicious cycle of continued burning will be required. The impacts to native vegetation from frequent fires will be the loss of species dependent on longer periods between fires and dominance by species favouring short periods in between fires. Frequent fires will affect the diversity and density of vegetation. With lack of weed control, indigenous plants will be displaced by weeds. However, mosaic burning is an option for bushland where it not only reduces fuel loads but can also benefit regeneration of indigenous plants dependent on fire for germination. This a strategic approach with both biodiversity and fuel hazard reduction outcomes. Mosaic burning requires careful planning to assess areas that will benefit from this techniques, timing (hot/cool burns), follow up weed control and possible revegetation required. Underpinning the planning process will be the determination of frequency of fires in each area. Before mosaic burning is considered a viable option, Council must research the issue and consult with experts in native vegetation management and fire prevention, ie. Native Vegetation Council, local botanists, research scientists and the CFS. STRATEGY 6.5.3 (a) Research appropriateness and methodologies for mosaic burning in grey box woodland to achieve biodiversity and fuel load reduction outcomes. 6.5.3 (b) Consider establishing small trial sites in different native vegetation conditions (1-3) in Ashby Reserve. Trial sites must be of manageable sizes to ensure continued follow up weed control. 6.5.3 (c) Native Vegetation Council approval is required before prescribed burns can occur in native vegetation. 5.5.3 (d) Council to keep a detailed history of fires occurring in Ashby Reserve and adjacent areas to assess impacts on indigenous vegetation and fuel loads. Page: 61 Ashby Reserve Maintenance Plan, June 2003 6.6 QUARRY A former quarry is located at the end of Hill Road and Lee Street, and provides a rock cutting suitable for inclusion in a geology or history trail. Interpretive signage can be installed to describe these features. The quarry contains remnants of a grey box woodland but is proliferating with pussy tail (Pentaschistis thunbergii). If a trail was constructed through the quarry, measures must be implemented to prevent spreading weeds to other sections of the reserve. A fence has been installed at the end of Hill Road and Lee Street to prevent people traversing over the quarry face. It is beyond the scope of this maintenance plan to evaluate the adequacy of quarry fencing for public safety. Council needs to inspect quarry fencing for compliance to Occupational Health, Safety and Welfare legislation/regulations and rectify any deficiencies. A quarry audit commissioned by Council in the 1990s may assist with an inspection. STRATEGY 6.6 (a) Research the history and geology of the quarry for possible inclusion in a geological and/or historical interpretive trail. 6.6 (b) If a trail is constructed Council must take appropriate actions to minimise further spread of pussy tail (Pentaschistis thunbergii). 6.6 (c) Council to inspect quarry fencing for compliance to Occupational Health, Safety and Welfare legislation/regulations and rectify any deficiencies. A past quarry audit may assist. 6.7 COMMUNITY EDUCATION Implementation of this maintenance plan will be more effective if the community are aware of the issues affecting Ashby Reserve. Through education the community may increase their appreciation and value of Ashby Reserve and take greater ownership. Educating the community on issues such as biodiversity, illegal dumping, stormwater pollution prevention, environmental weeds, recreation guidelines and trail ethics can have a dramatic affect on attitudes and behaviour. Community participation in management of the reserve can then be gained by individual residents modifying or ceasing damaging practices or even joining volunteer organisations (ie. Trees For Life) to actively manage sites of indigenous vegetation. Page: 62 Ashby Reserve Maintenance Plan, June 2003 STRATEGY 6.7 (a) Council to provide the Ashby Reserve Maintenance plan for community consultation and retain it as a public, working document. 6.7 (b) Council seeks to educate the community on issues such as biodiversity, indigenous plants, bushfire prevention, illegal dumping, stormwater pollution prevention and environmental weeds. These are to be delivered through interpretive signage along trails, mail-outs, brochures, Council’s website, Mitcham Community News and on-site meetings. 6.7 (c) Council should fund the establishment and annual maintenance of additional Bush For Life sites (volunteers through Trees For Life) in Ashby Reserve to involve the community in on-ground vegetation management. Page: 63 Ashby Reserve Maintenance Plan, June 2003 7. IMPLEMENTATION OF STRATEGIES 7.1 RESERVE STATUS The City of Mitcham Open Space Survey 1982 classified both Ashby Reserve and the former Gulfview Reserve as “Undeveloped: mo dified woodland – (a) semi-natural.” Refer to Section 2.1 for definitions of terms. This description is accurate and useful for Council’s internal purposes. However a simplified classification such as “Native Woodland Reserve” or “Native Bushland Reserve” is more appropriate when stating the reserve classification on signage. A letter from the National Trust of South Australia (Watiparinga Reserve Management Committee) in 2001 to the City of Mitcham canvassed the option of entering into a heritage agreement for Ashby Reserve under the Native Vegetation Act 1991. The aim of the heritage agreement is to assist Council in managing the reserve as Council resources are limited. In response the City of Mitcham declined to enter into a heritage agreement as it was increasing its resources for Ashby Reserve. Council recently employed two staff dedicated to woodland reserve works such as weed removal, revegetation, trail maintenance and fence repair. Ashby Reserve has been included in their list of reserves of which they have responsibility. 7.2 MANAGEMENT ZONES Ashby Reserve has been divided into nine management zones (Figure 12) based upon recognised features such as fire tracks, walking tracks and creek lines. These are the most distinguishable features on the ground and assist in managing activities throughout the reserve. Within each zone there are varying native vegetation condition ratings which are used to guide bushland management activities. 7.3 MANAGEMENT COMMITTEE In the case of a management plan, Robertson (1995 p11) recommends the formation of a management committee to: • coordinate, oversee and review implementation of the plan; • resolve management issues as they arise; Page: 64 Ashby Reserve Maintenance Plan, June 2003 • provide feedback to Council. Council does not consider it necessary to form a committee for this maintenance plan as existing Council operations enable the processes listed above. 7.4 MONITORING, EVALUATION AND REVIEW Implementation of this plan can be assessed through evaluating on-ground actions which are derived from recommended strategies. Therefore, monitoring of actions are critical. Some monitoring methods are listed below. • Photo-points – monitoring weed removal programs, long term native vegetation change and erosion control; • Vegetation Surveys – in specified areas, survey plants species to give an indication of weed control effectiveness in regeneration of indigenous vegetation. This may occur at 1-5 year intervals and involve sampling the same quadrats each survey. This will provide a good indication of whether or not management techniques are successful; • Community Surveys – to obtain feedback on community education initiatives whether or not the “messages” are understood, relevant, changing attitudes, information gaps, etc; • Documentation – confirmation of actions such as fuel breaks being slashed, grading of fire tracks, clean up notices issued can be recorded on inspection or activity sheets (Appendix 6) as proof that they have been implemented. All activities need to be recorded and entered into a database (ie. MapInfo) for future reference and analysis. All actions and monitoring occurring in a reserve should be recorded on an “activity sheet” and then entered into a Geographic Information System (GIS) such as MapInfo. This will provide Council and the community with a comprehensive database providing valuable historical data for a myriad of uses (ie. budgeting) at a later date. Annual or half yearly reviews of the maintenance plan can take place by evaluating outcomes of each action. Outcomes of the analysis may be to alter actions for the coming year, reprioritise actions and make changes to the maintenance plan in the next review. It is advisable to review the maintenance plan every five years. 7.5 RESOURCING AND PERSONNEL To implement the strategies in this plan it is vital that Council commits to providing adequate financial and human resources. Ashby Reserve is relatively large at twenty six hectares. Council’s newly formed “woodland reserve crew” (two staff) will play a key role in reserve maintenance and vegetation management. However, they will only have a limited number of hours to devote each year as they undertake similar works across the Mitcham Hills. It is vital that Council identify resource Page: 65 Ashby Reserve Maintenance Plan, June 2003 restrictions and ways to combat these. Establishment of Bush for Life sites and other volunteer programs throughout the reserve can greatly assist Council. Council will need to ensure that a staff member is assigned to implement the maintenance plan and audit on-ground works. Without one person being responsible for implementing the strategies, an uncoordinated approach will result. Page: 66 Ashby Reserve Maintenance Plan, June 2003 Page: 67 Ashby Reserve Maintenance Plan, June 2003 7.6 IMPLEMENTATION GUIDE Implementation of the maintenance plan has been summarised below in Table 8. However, this does not adequately address each strategy in the plan or provide a comprehensive weeding plan. An “action plan” should follow this document to adequately implement all the recommended strategies and available resources. TABLE 8. IMPLEMENTATION GUIDE TASK ISSUES Public Consultation • • • Adopt Maintenance plan • • • RESPONSIBILITY DURATION Ensure that stakeholders are consulted Consider issues raised by stakeholders for inclusion in the maintenance plan Review accuracy of the maintenance plan Council Short term (4 weeks) Policy: consider changing reserve status. eg. change classification title or adopt a heritage agreement. This must be in accordance with the Local Government Act; Review / endorse strategies; Commitment: are existing resources adequate to implement the maintenance plan? Council Short term Reserve Status • Ensure reserve’s classification is appropriate for long term protection of indigenous flora and fauna on the reserve . Council Short term Appoint responsible staff • • Define roles and responsibilities; Appoint staff member Council Short term Record Keeping • • • Establish photopoints in key areas; Consider a grid system; Create a standard form linked to the grid system and photopoints to monitor change in the reserve. Obtain fire history of Ashby Reserve from CFS; Obtain deposited plans for all titles and record all easements; Council Short term • • Monitoring • Establish photopoints and permanent sample sites in key areas to observe longterm change. Council & volunteers Short term Weeds • Adopt Watiparinga & Bradley method (minimal disturbance of indigenous vegetation) to encourage natural regeneration and minimise weed invasions. Council staff & volunteers Ongoing Page: 68 Ashby Reserve Maintenance Plan, June 2003 TASK ISSUES RESPONSIBILITY DURATION Fire • Coordinate fire prevention with weed management. Consult CFS where necessary; Minimise weed dispersal in grading fire tracks and slashing fuel breaks; Modify maintenance of fuel breaks to favour regeneration of indigenous grasses and groundcover plants and disadvantage the growth of exotic species. Include the reserve's maintenance plan in the District Bushfire Prevention Plan. Council, volunteers, CFS & Fire Prevention Officer Short-term Stabilise areas undergoing erosion and install stabilisation measures where necessary. Deal with the source of the problem. Stormwater erosion sites will require additional resources to rectify the problems Council & volunteers medium -long term, ongoing. Develop trails and install interpretive signage to encourage the public to use designated trails, entry/exit points and appropriate activities. Install interpretive signage to provide information on the history, geology and indigenous flora and fauna of the reserve; Ensure that the maintenance plan is readily available so anyone with an interest in the area can ascertain what managers aim to achieve and how. Inform and advise residents on: - Regulated activities - Environmental weeds and nonindigenous natives - Threat to vegetation from trampling and illegal dumping - Fire prevention practices - “Reserve Watch” role and other possible involvement - CFS community awareness programs Raise awareness of bushland values and general biodiversity issues Council Short-term (signage, mail drop) then an annual mail drop Regulated Activities Enforce regulations prohibiting activities that damage native vegetation and habitat, ie. unauthorised access, litter and dumping, wood collecting, woodcutting and moss rock removal. Council Ongoing Feedback • Report regularly on progress of work and its successes/failures Council Evaluation & review • Based on results of monitoring, evaluate management, review priority areas, plans and resourcing. Council Ongoing (612 month basis) 5 year intervals • • • • Erosion • • Community Education • • • • • Page: 69 Ashby Reserve Maintenance Plan, June 2003 7.7 SUMMARY OF STRATEGIES TABLE 9. HIGH PRIORITY STRATEGIES SECTION 2.8 (b) HIGH PRIORITY STRATEGY Consider appropriate fencing around areas of high habitat value. Install entry and exit points along fence for movement of indigenous fauna. ISSUE Habitat 3.2.5 Comprehensive vegetation condition mapping to be completed across Ashby Reserve Flora 4.1 Ashby Reserve provides critical habitat for indigenous flora and fauna, which some are of conservation significance. Ashby Reserve needs to be managed in ways that enhance habitat corridors, protect indigenous flora and fauna and foster regeneration of indigenous flora which fauna rely upon for habitat. Flora & Fauna 6.1.1 Protect and conserve indigenous flora by removing degrading influences upon them and undertaking appropriate management practices to encourage regeneration. Flora & Fauna 6.1.2 Management actions are to focus on establishing indigenous flora by regeneration (natural process) as the primary method. This will be achieved through minimal disturbance weed control (Bradley / Watiparinga method) and minimising degrading influences. Flora & Fauna 6.1.3 Revegetation is only a supplement to regeneration. Revegetation must adhere to suggested guidelines and best practice methods as they are developed. Revegetation should first focus on establishing pioneering species in specific degraded areas of the reserve. Flora & Fauna 6.1.4 Allow non-commercial seed collection of common species in the reserve by permitted individuals/organisations for planting in the local area. Seed collection must not remove more than 10% of available seed from the reserve. Flora & Fauna 6.1.5 (a) Assess fauna habitats or their potential in areas for programmed works. If works are likely to impact on fauna habitats then STOP and re-assess works, techniques and priorities – do we need to undertake these woks now? Can we wait until substitute habitat is provided? etc. Flora & Fauna 6.1.5 (b) Gather information on grey box woodland ecosystems and incorporate findings into management practices where practicable. Flora & Fauna 6.1.6.3 (a) Only minimal disturbance weed control is to be used on Ashby Reserve according to the Watiparinga Reserve and Bradley methods. Flora & Fauna 6.1.6.3 (b) Adopt weed and Phytophthora cinnamomi (Pc) hygiene practices for Council employees, contractors, volunteers, local residents and users of the reserve. Flora & Fauna 6.1.6.3 (c) Implement an action plan to address weed control within the reserve based upon conservation values, fire management and priority weeds. Weed Control Page: 70 Ashby Reserve Maintenance Plan, June 2003 SECTION 6.1.6.3 (d) HIGH PRIORITY STRATEGY Vigilance is required along edges of the reserve where garden escapes are introduced. Regular patrols of the boundaries with prompt removal of garden escapes. ISSUE Weed Control 6.2.1 (a) Ashby Reserve is a natural woodland which can be accessed and enjoyed by the community for passive recreation. Council needs to provide some infrastructure to guide passive recreation within the reserve in an effort to minimise adverse impacts. Recreation 6.2.1(b) Community consultation should be undertaken to determine current recreational uses occurring in the reserve and community needs. An outcome of the consultation may be that current non-complying activities be permitted provided adequate planning and on-ground controls are implemented. This may control prohibitive activities, which at present are uncontrolled, ie. mountain bikes. Recreation 6.2.1(c) The number of entry/exit points to Ashby Reserve need to be reduced by about 50%. This should reduce damage to native vegetation, signage and management of these areas. Recreation 6.3 Council to consider undertaking remedial works to stop further erosion caused by stormwater discharge from outlets. Remedial works may involve extending stormwater outlets into the creek with dissipaters at the end of the outlets. Eroded sections need to be stabilised and revegetated with indigenous plants. Ignoring the problem now will exasperate gully erosion impacts and multiply remedial costs in the future. Of course, Council action will be dependent upon budget allocations, if any at this stage. Perhaps this can be addressed in annual budget reviews. Erosion 6.4 (a) Council to regularly patrol the reserve for rubbish dumping, especially at the rear of houses adjoining Ashby Reserve. Council officers to issue notices to residents to remove their rubbish and dispose of in a lawful manner. illegal dumping 6.4 (b) Council officers to arrange prompt disposal of rubbish on reserves where the offender can not be identified. illegal dumpling 6.4 (c) It is recommended that locked gates are installed at both ends of the fire track below Banksia Crescent and Grevillea Way (E&WS easement) to limit access to essential services. 6.5.2 (a) Continue weed eradication throughout the reserve to reduce fuel loads by targeting woody weed species and exotic grasses such as phalaris. Fire Prevention 6.5.2 (b) Promote and establish indigenous grasses, herbs and ground covers within fuel breaks to reduce fuel loads, slashing and weed control costs. Do not plant indigenous trees and shrubs within 15-20 metres of reserve boundary to ensure the effectiveness of fuel breaks are not compromised. Form linkages with CFS Community Fire Safe groups to raise awareness. Fire Prevention 6.5.2 (c) Promote indigenous vegetation within Ashby Reserve to provide a competitive vegetation cover against weeds and reduce the overall biomass in the reserve. Dense olive infestations dramatically increase the biomass and elevated fuel loads of grey box woodlands. Fire Prevention Page: 71 Ashby Reserve Maintenance Plan, June 2003 SECTION 6.5.2 (d) HIGH PRIORITY STRATEGY It is advisable to maintain a standard five-metre fuel break along all boundaries, which adjoin residential properties. Maintain a thirty-metre fuel break at the rear of properties on Gloucester Avenue and the north-western section of Banksia Crescent. ISSUE Fire prevention 6.5.2 (e) Council should Install a five-metre wide fuel break along the reserve's south-eastern boundary where houses from Bens Place, Melton Street and Gulfview Road back onto the reserve Fire Prevention 6.5.2 (f) Maintain all fire tracks in good condition. Ensure grader operator does not continue to form piles of loose dirt and rubble along the track and push / dump graded dirt into bushland. Past operations have increased weed invasion along the track and into bushland. Fire Prevention 6.5.2 (g) Unless alternative options can be found, it is recommended that a fire track is constructed at the rear of properties on Banksia Crescent and Gloucester Avenue - when funding becomes available in compliance with CFS recommendations. Consultation with the National Trust and Native Vegetation Council is required as native vegetation would be cleared. Fire Prevention 6.5.2 (h) Council should ensure that residential properties adjacent to the reserve are implementing bushfire prevention practices, have adequate fuel breaks and do not dispose of rubbish in Ashby Reserve. Fire Prevention 6.5.2 (i) Council to educate the local community on bushfire prevention practices, which can be assisted through the CFS community awareness programs. Fire Prevention 6.5.2 (j) Council to assist in establishing a “reserve watch” to reduce illegal dumping in the reserve, prohibited recreation activities, loitering and arsonists. Fire Prevention 6.5.2 (k) Ashby Reserve to be included in the District Bushfire Prevention Plan with its draft maintenance plan (particularly fire section) reviewed by the District Bushfire Prevention Committee. Upon advice from the Committee, the maintenance plan for Ashby Reserve will be updated (if required) for endorsement by the committee. Fire Prevention 6.5.2 (l) Scope options to minimise impacts of the northern boundary fire track on residents. fire track impacts 6.5.3 (c) Native Vegetation Council approval is required before prescribed burns can occur in native vegetation. Fire prevention 5.5.3 (d) Council to keep a detailed history of fires occurring in Ashby Reserve and adjacent areas to assess impacts on indigenous vegetation and fuel loads. Fire Prevention 6.6 (b) If a trail is constructed Council must take appropriate actions to minimise further spread of pussy tail (Pentaschistis thunbergii). Recreation 6.6 (c) Council to inspect quarry fencing for compliance to Occupational Health, Safety and Welfare legislation/regulations and rectify any deficiencies. A past quarry audit may assist Recreation Page: 72 Ashby Reserve Maintenance Plan, June 2003 SECTION 6.7 (a) HIGH PRIORITY STRATEGY Council to provide the draft Ashby Reserve Maintenance plan for community consultation and retain it as a public, working document. ISSUE Community 6.7 (b) Council seeks to educate the community on issues such as biodiversity, indigenous plants, bushfire prevention, illegal dumping, stormwater pollution prevention and environmental weeds. These are to be delivered through interpretive signage along trails, mail-outs, brochures, Council’s website, Mitcham Community News and on-site meetings. Community 6.7 (c) Council should fund the establishment and annual maintenance of additional Bush For Life sites (volunteers through Trees For Life) in Ashby Reserve to involve the community in on-ground indigenous vegetation management. Community . Page: 73 Ashby Reserve Maintenance Plan, June 2003 TABLE 10. MEDIUM PRIORITY STRATEGIES SECTION MEDIUM PRIORITY STRATEGY ISSUE 2.8 (a) Install boundary markers along reserve boundaries using recycled posts after they have been surveyed. Maintenance operations 6.5.3 (a) Research appropriateness and methodologies for mosaic burning in grey box woodland to achieve biodiversity and fuel load reduction outcomes. Fire Prevention 6.5.3 (b) Consider establishing small trial sites (mosaic burning) in different native vegetation conditions (1-3) in Ashby Reserve. Trial sites must be of manageable sizes to ensure continued follow up weed control. Fire Prevention 6.6 (a) Research the history and geology of the quarry for possible inclusion in a geological and/or historical interpretive trail. Recreation . TABLE 11. LOW PRIORITY STRATEGIES SECTION LOW PRIORITY STRATEGY 2.5 Obtain additional records of the fire history in and around Ashby Reserve from Belair CFS. History 2.6 Obtain deposited plans for all tittles that form Ashby Reserve and record all easements in a review of the Ashby Reserve Maintenance plan. History ISSUE Page: 74 Ashby Reserve Maintenance Plan, June 2003 REFERENCES & BIBLIOGRAPHY Buchanan, R. A. (1994) Bush Regeneration: Recovering Australian Landscapes. Redfern NSW, The Open Training and Education Network. Bureau of Meteorology (2002) www.bom.gov.au/climate/averages/table/cw_023703.shtml Charman, P. E. V. and Murphy, B. W. (1994) Soils their Properties and Management: A Soil Conservation handbook for New South Wales. NSW, Sydney University Press. Davies, R. J. P. (1982) The Conservation of Major Plant Associations in South Australia. Adelaide, Conservation Council of South Australia Incorporated. Deer, D. (2002) pers. comm., regarding fire protection measures and management issues of Ashby Reserve. DEH (2001) Provisional Listing of Threatened Ecosystems of the Agricultural Regions for South Australia. Unpublished report. Drew, G. L. (1999) ‘Geology of Watiparinga Reserve.’ Appendix 2 of Robertson, E. L (1999) Restoration of Grassy Woodland: Watiparinga Reserve Management Plan. Adelaide, The National Trust of South Australia Gillis, S. (1992-93) Flora survey in Ashby Reserve for the City of Mitcham. Magraith, D. W. (1984) City of Mitcham internal memo regarding Gulfview Reserve (R513) and Ashby Reserve (R501) Moyle, D. and Robertson, E. and Caton, B. (1982) City of Mitcham Open Space Survey 1982. South Australia, City of Mitcham Open Space Survey Coordinating Committee. Ragless, M. (2002) pers. comm., Title search and history of Ashby and Gulfview Reserves. Robertson, E. L. (1991) Correspondence to the City of Mitcham on behalf of The National Trust of South Australia regarding weed control and revegetation works on Ashby Reserve, Gulfview Reserve and nearby reserves. Robertson, E. L (1999) Restoration of Grassy Woodland: Watiparinga Reserve Management Plan. Adelaide, The National Trust of South Australia. Robertson, E. L (2002) pers. comm., regarding the background and history of Ashby and Gulfview Reserve. Robertson, M. (1994) Randell Park Management Plan – City of Mitcham. Robertson, M. (1995) Guidelines for Preparing Vegetation Management Plans for Local Government Reserves. Adelaide, Native Vegetation Council. Roche, M. (2001) Native Vegetation Plan for Hilltop Reserve, Upper Sturt. South Australia for the City of Mitcham. Page: 75 Ashby Reserve Maintenance Plan, June 2003 Taylor, J. K. and Thomson, B. P. and Shepherd, R. G. (1974) The Soils and Geology of the Adelaide Area – Bulletin 46 Geological Survey of South Australia. Adelaide, Department of Mines. Thompson, S. (2002) Sturt Logistics Officer, Country Fire Service. pers. comm., regarding the fire history of Ashby and Gulfview Reserve. Turner, M. S. (2001) Conserving Adelaide’s Biodiversity: Resources. Urban Forest Biodiversity Program, Adelaide. Walker, C. and Hill, B. (2001) City of Mitcham Open Space Strategy. South Australia, City of Mitcham (report). Zybek, J. (2002) pers. comm., regarding fire issues in Ashby Reserve. Page: 76 Ashby Reserve Maintenance Plan, June 2003 APPENDICES Ashby Reserve Maintenance Plan, June 2003 APPENDIX – 1 CITY OF MITCHAM MEMO 20TH JUNE 1984 Ashby Reserve Maintenance Plan, June 2003 Ashby Reserve Maintenance Plan, June 2003 Ashby Reserve Maintenance Plan, June 2003 APPENDIX – 2 ABORIGINAL USE OF PLANTS Ashby Reserve Maintenance Plan, June 2003 Plants indigenous to Watiparinga Reserve which were used by the Aboriginal People (Robertson, 1999). Ashby Reserve Maintenance Plan, June 2003 APPENDIX – 3 FLORA SURVEY Ashby Reserve Maintenance Plan, June 2003 FLORA SURVEY BY SOLVEIG GILLIS 1992-93 (entered into Florlist by Phil McNamara, SA UFBP 2002) AUS ADIANTACEAE Cheilanthes austrotenuifolia Annual Rock-fern AMARANTHACEAE Ptilotus erubescens Hairy-tails ARACEAE *Zantedeschia aethiopica White Arum Lily ASCLEPIADACEAE *Asclepias rotundifolia Broad-leaf Cotton-bush ASPLENIACEAE Pleurosorus rutifolius Blanket Fern BORAGINACEAE *Echium plantagineum Salvation Jane CACTACEAE *Opuntia sp. Prickly Pear CAPRIFOLIACEAE *Viburnum tinus Laurestinus CARYOPHYLLACEAE Scleranthus pungens Prickly Knawel CASUARINACEAE Allocasuarina muelleriana ssp. muelleriana Allocasuarina verticillata COMPOSITAE *Chrysanthemoides monilifera Chrysocephalum apiculatum *Gazania sp. Olearia ramulosa *Senecio mikanioides *Senecio pterophorus var. pterophorus Senecio quadridentatus CONVOLVULACEAE Convolvulus remotus Common Oak-bush Drooping Sheoak Boneseed Common Everlasting Gazania Twiggy Daisy-bush Cape Ivy African Daisy Cotton Groundsel Grassy Bindweed SA SL R R U R Ashby Reserve Maintenance Plan, June 2003 AUS CUPRESSACEAE Callitris preissii Callitris rhomboidea Southern Cypress Pine Oyster Bay Pine CYPERACEAE Carex tereticaulis Chorizandra enodis Cyperus vaginatus Lepidosperma curtisiae Schoenus apogon Rush Sedge Black Bristle-rush Stiff Flat-sedge Little Sword-sedge Common Bog-rush DILLENIACEAE Hibbertia exutiacies Prickly Guinea-flower DIPSACACEAE *Scabiosa atropurpurea Pincushion DROSERACEAE Drosera auriculata Drosera macrantha ssp. planchonii Drosera whittakeri ssp. whittakeri SA SL U R Tall Sundew Climbing Sundew EPACRIDACEAE Astroloma humifusum Lissanthe strigosa Cranberry Heath Peach Heath EUPHORBIACEAE Euphorbia sp. Spurge FAGACEAE *Quercus robur English Oak GERANIACEAE Geranium sp. Pelargonium sp. Geranium Storks-bill GOODENIACEAE Goodenia albiflora Goodenia geniculata Scaevola albida Velleia arguta White Goodenia Bent Goodenia Pale Fanflower Toothed Velleia GRAMINEAE *Arundo donax *Avena sp. *Cortaderia selloana Cymbopogon obtectus Giant Reed Oat Common Pampas Grass Silky-head Lemon-grass U R R Ashby Reserve Maintenance Plan, June 2003 AUS Microlaena stipoides var. stipoides *Pennisetum clandestinum *Pentaschistis pallida *Phalaris sp. *Piptatherum miliaceum Stipa sp. Themeda triandra SL Weeping Rice-grass Kikuyu Pussy Tail Canary Grass Rice Millet Spear-grass Kangaroo Grass GUTTIFERAE *Hypericum perforatum St John's Wort HALORAGACEAE Gonocarpus elatus Gonocarpus mezianus Gonocarpus tetragynus Hill Raspwort Broad-leaf Raspwort Small-leaf Raspwort IRIDACEAE *Chasmanthe floribunda var. floribunda *Homeria sp. SA African Corn-flag Cape Tulip JUNCACEAE Juncus subsecundus Finger Rush LABIATAE *Lavandula stoechas Topped Lavender LEGUMINOSAE Acacia acinacea *Acacia baileyana *Acacia decurrens Acacia hakeoides *Acacia iteaphylla *Acacia longifolia Acacia melanoxylon Acacia notabilis Acacia paradoxa Acacia pycnantha *Acacia saligna Cullen australasicum *Genista monspessulana Glycine tabacina Hardenbergia violacea Kennedia prostrata Platylobium obtusangulum Pultenaea largiflorens Wreath Wattle Cootamundra Wattle Early Black Wattle Hakea Wattle Flinders Ranges Wattle Sallow Wattle Blackwood Notable Wattle Kangaroo Thorn Golden Wattle Golden Wreath Wattle Tall Scurf-pea Montpellier Broom Variable Glycine Native Lilac Scarlet Runner Holly Flat-pea Twiggy Bush-pea LILIACEAE *Allium triquetrum Three-cornered Garlic K R K V E Ashby Reserve Maintenance Plan, June 2003 AUS Arthropodium strictum Burchardia umbellata Dianella revoluta var. revoluta Lomandra micrantha ssp. tuberculata *Myrsiphyllum asparagoides Wurmbea dioica ssp. dioica Xanthorrhoea semiplana Small-flower Mat-rush Bridal Creeper Early Nancy Yacca Box Mistletoe MORACEAE *Ficus carica Edible Fig MYOPORACEAE Myoporum insulare Common Boobialla OLEACEAE *Olea europaea ssp. europaea SL Common Vanilla-lily Milkmaids Black-anther Flax-lily LORANTHACEAE Amyema miquelii MYRTACEAE Calytrix tetragona Eucalyptus camaldulensis var. camaldulensis Eucalyptus cosmophylla *Eucalyptus globulus Eucalyptus leucoxylon Eucalyptus leucoxylon ssp. pruinosa Eucalyptus microcarpa Eucalyptus odorata Eucalyptus sp. Leptospermum continentale *Melaleuca hypericifolia SA Common Fringe-myrtle River Red Gum Cup Gum Tasmanian Blue Gum South Australian Blue Gum Inland South Australian Blue Gum Grey Box Peppermint Box Prickly Tea-tree Olive ORCHIDACEAE Thelymitra sp. Sun-orchid OXALIDACEAE *Oxalis pes-caprae Soursob PINACEAE *Pinus halepensis *Pinus radiata Aleppo Pine Radiata Pine PITTOSPORACEAE Bursaria spinosa Sweet Bursaria U Ashby Reserve Maintenance Plan, June 2003 AUS Pittosporum phylliraeoides var. microcarpa *Pittosporum undulatum PLANTAGINACEAE *Plantago coronopus ssp. coronopus Native Apricot Sweet Pittosporum Bucks-horn Plantain PROTEACEAE Banksia marginata Grevillea lavandulacea *Grevillea rosmarinifolia Hakea carinata *Hakea laurina Hakea rostrata Hakea sp. Isopogon ceratophyllus Silver Banksia Spider-flower Rosemary Grevillea Erect Hakea Pincushion Hakea Beaked Hakea Hakea/Needlewood Horny Cone-bush RANUNCULACEAE *Ranunculus repens Creeping Buttercup ROSACEAE Acaena echinata *Prunus armeniaca *Prunus domestica ssp. domestica *Prunus sp. *Rosa canina *Rubus sp. Sheep's Burr Apricot Plum Plum Dog Rose Blackberry RUBIACEAE Opercularia turpis Twiggy Stinkweed SANTALACEAE Exocarpos cupressiformis Native Cherry SAPINDACEAE Dodonaea viscosa Sticky Hop-bush SOLANACEAE *Lycopersicon esculentum Tomato THYMELAEACEAE Pimelea sp. Riceflower TREMANDRACEAE Tetratheca pilosa ssp. pilosa Hairy Pink-bells TROPAEOLACEAE *Tropaeolum majus Nasturtium SA SL R Ashby Reserve Maintenance Plan, June 2003 AUS TYPHACEAE Typha sp. Bulrush UMBELLIFERAE *Foeniculum vulgare Fennel SA VALERIANACEAE *Centranthus ruber ssp. ruber Red Valerian Indigenous species: 85 Alien species: 49 Total number of species:134 Ashby Reserve * = Non Indigenous Native Plants NATIVE PLANT SPECIES FOUND IN ASHBY RESERVE JANUARY 1992, MAY, JUNE & AUGUST 1993. by Solveig Gillis (original listing) PTERIDOPHYTA ADIANTACEAE Cheilanthes austrotenuifolia Rock Fern ASPLENIACEAE Pleurosorus rutifolius Blanket Fern GYMNOSPERMAE CUPRESSACEAE Callitris preissii Callitris rhomboidea Southern Cypress Pine, Murray Pine Oyster Bay Pine DICOTYLEDONAE AIZOACEAE *Galenia sp. AMARANTHACEAE Ptilotus erubescens Hairy Heads CARYOPHYLLACEAE Scleranthus pungens Prickly Knawel CASUARINACEAE Allocasuarina muelleriana Allocasuarina verticillata Slaty Sheoak Drooping Sheoak SL Ashby Reserve Maintenance Plan, June 2003 *Casuarina obesa (C. glauca) Swamp Oak COMPOSITAE Helichrysum apiculatum Olearia ramulosa Senecio ?quadridentatus Common Everlasting Twiggy Daisy Bush Cotton Senecio CONVOLVULACEAE Convolvulus remotus Australian Bindweed DILLENIACEAE Hibbertia exutiacies Hibbertia sericea Hibbertia aff. stricta Guinea Flower Silky Guinea Flower DROSSERACEAE Drosera auriculata Drosera macrantha ssp. planchonii Drosera whittakeri Tall Sundew Climbing Sundew Scented Sundew EPACRIDACEAE Astroloma humifusum Lissanthe strigosa Native Cranberry Peach Heath GERANIACEAE Geranium sp. GOODENIACEAE Goodenia albiflora Goodenia geniculata Scaevola albida Velleia arguta HALORAGACEAE Gonocarpus elatus Gonocarpus mezianus Gonocarpus tetragynus LEGUMINOSAE *Acacia baileyana *Acacia decurrens *Acacia floribunda *Acacia glandulicarpa Acacia hakeoides *Acacia iteaphylla *Acacia longifolia Acacia melanoxylon Acacia notabilis Acacia paradoxa Acacia pycnantha Acacia rotundifolia *Acacia saligna Glycine tabacina Hardenbergia violacea Indigofera sp. White Goodenia Bent Goodenia Fan Flower Spur Velleia Hill Raspwort Common Raspwort Cootamundra Black Wattle White Sallow, Gossamer Wattle Hairy Pod Wattle Hakea Wattle, Western Black Wattle Flinders Ranges Wattle Sallow wattle, Blackwood Notable Wattle, Stiff Golden Wattle Kangaroo Thorn Golden Wattle Round-leaved Wattle Golden Wreath Wattle Variable Glycine, Glycine Pea Native Lilac Ashby Reserve Maintenance Plan, June 2003 Kennedia prostrata Platylobium obtusangulum Psoralea australasica Pultenaea largiflorens Running Postman Common Flat Pea Native Verbine, Native Scurf Pea Twiggy Bush Pea LORANTHACEAE Amyema miquelii Box Mistletoe MYOPORACEAE *Myoporum insulare Boobialla MYRTACEAE *Acmena smithii *Agonis flexuosa *Callistemon spp. *Calothamnus graniticus *Calothamnus sp. Calytrix tetragona *Chamelaucium uncinatum *Eucalyptus ?botryoides Eucalyptus camaldulensis *Eucalyptus cinerea *Eucalyptus citriodora *Eucalyptus cladocalyx Eucalyptus cosmophylla *Eucalyptus erythrocorys *Eucalyptus ficifolia *Eucalyptus globulus *Eucalyptus grandis *Eucalyptus lehmannii Eucalyptus leucoxylon *Eucalyptus leucoxylon ssp. megalocarpa *Eucalyptus leucoxylon ssp. pruinosa *Eucalyptus maculata Eucalyptus microcarpa *Eucalyptus nicholii *Eucalyptus odorata *Eucalyptus polyanthemos *Eucalyptus sideroxylon *Eucalyptus sp. (Series Dumosae) *Eucalyptus spp. *Kunzea baxteri Leptospermum juniperinum *Leptospermum sp. *Melaleuca armillaris *Melaleuca diosmifolia *Melaleuca hypericifolia *Melaleuca microphylla *Melaleuca nesophila PITTOSPORACEAE Bursaria spinosa Pittosporum phylliraeoides *Pittosporum undulatum Lilly Pilly W.A. Willow Myrtle Bottlebrush (C. torulosus var. leptophyllus) Netbush Common Fringe Myrtle Geraldton Wax Bangalay, Southern Mahogany River Red Gum Argyle Apple Lemon Scented Gum Sugar Gum Cup Gum Red Capped Gum, Illyarie W.A. Red Flowering Gum Tasmanian Blue Gum Bushy Yate South Australian Blue Gum Large Fruited S.A. Blue Gum Spotted Gum Grey Box Willow Peppermint Peppermint Box Red Box Red Ironbark Scarlet Kunzea Prickly Tea-tree Tea-tree Bracelet Honey Myrtle Red Flowering Paperbark Western Honey Myrtle Christmas Bush, Sweet Bursaria Native Apricot, Weeping Pittosporum Sweet Pittosporum Ashby Reserve Maintenance Plan, June 2003 PROTEACEAE *Banksia grandis Banksia marginata *Banksia sp. Grevillea lavandulacea *Grevillea robusta *Grevillea rosmarinifolia *Grevillea spp. Hakea carinata *Hakea elliptica *Hakea laurina *Hakea petiolaris Hakea rostrata *Hakea sericea *Hakea suaveolens *Hakea sp. Isopogon ceratophyllus Bull Banksia Silver Banksia Banksia Lavender Grevillea Silky Oak Rosemary Grevillea Grevillea Hakea Pin Cushion Hakea Sea-urchin Hakea Beaked Hakea Silky Hakea (Now Hakea drupacea) Hakea Cone Bush ROSACEAE Acaena echinata Sheep's Burr RUBIACEAE Opercularia turpis Twiggy Stinkweed SANTALACEAE Exocarpos cupressiformis Native Cherry SAPINDACEAE Dodonaea viscosa *Dodonaea viscosa var. purpurea Sticky Hop Bush Purple Hop Bush THYMELAEACEAE Pimelea sp. Riceflower TREMANDRACEAE Tetratheca pilosa ssp. pilosa Pink-eyed Susan MONOCOTYLEDONAE CYPERACEAE Carex tereticaulis Cyperus vaginatus Chorizandra enodis Lepidosperma lineare Schoenus apogon Flat Sedge Black Bristle Rush Little Sword Sedge Common Bog Rush GRAMINEAE Cymbopogon obtectus Microlaena stipoides var. stipoides Stipa sp. Themeda triandra Silky Heads Weeping Rice Grass Spear Grass Kangaroo Grass HAEMODORACEAE *Anigozanthos sp. Kangaroo Paw Ashby Reserve Maintenance Plan, June 2003 JUNCACEAE Juncus subsecundus LILIACEAE Arthropodium strictum Burchardia umbellata Caesia vittata Dianella revoluta Lomandra dura Lomandra micrantha ssp. tuberculata Lomandra spp. Wurmbea dioica ssp. dioica Xanthorrhoea semiplana Finger Rush Vanilla Lily Milkmaids Blue-grass Lily Black Anther Flax Lily Stiff Iron Grass Iron Grass Yacca ORCHIDACEAE Thelymitra spp. Sun Orchid TYPHACEAE Typha sp. Bulrushes, Cumbungis EXOTIC AND WEED SPECIES FOUND IN ASHBY RESERVE JANUARY 1992, MAY, JUNE & AUGUST 1993. GYMNOSPERMAE PINACEAE Pinus radiata Pinus halepensis Monterey Pine Aleppo Pine DICOTYLEDONAE ASCLEPIADACEAE Asclepias rotundifolia Broad-leaved Cotton-bush BIGNONIACEAE Tecomaria capensis Fire Flower BORAGINACEAE Echium plantagineum Salvation Jane CACTACEAE Opuntia sp. Prickly Pear CAPRIFOLIACEAE Viburnum tinus COMPOSITAE Chrysanthemum frutescens Chrysanthemoides monilifera Cotula sericea Euryops pectinatus Gazania (Cultivars) Onopordum sp. Osteospermum sp. Marguerite Daisy Boneseed Cotula Grey Euryops Gazania Thistle Veldt Daisy Ashby Reserve Maintenance Plan, June 2003 Senecio mikanioides Senecio pterophorus A-mile-a-minute, Cape Ivy African Daisy CRASSULACEAE Sedum sp. Sedum DIPSACACEAE Scabiosa atropurpurea Scabious EUPHORBIACEAE Euphorbia sp. FAGACEAE Quercus robur Common Oak, English Oak GERANIACEAE Pelargonium sp. Geranium GUTTIFERAE Hypericum perforatum St John's Wort LABIATAE Lavandula stoechas Lavender LEGUMINOSAE Genista monspessulana Montpellier Broom LINACEAE Linum sp. Flax MORACEAE Ficus carica Fig OLEACEAE Fraxinus oxycarpa Olea europaea Desert Ash Olive OXALIDACEAE Oxalis pes-caprae Soursob PITTOSPORACEAE Pittosporum crassifolium Karo PLANTAGINACEAE Plantago ?coronopus ssp. coronopus POLYGONACEAE Muehlenbeckia complexa Maidenhair Creeper RANUNCULACEAE Ranunculus repens Creeping Buttercup ROSACEAE Prunus armeniaca Prunus domestica Apricot Plum Ashby Reserve Maintenance Plan, June 2003 Prunus sp. Rosa canina Rubus fruticosus Rubus sp. Dog Rose Blackberry SALICACEAE Salix matsudana `Tortuosa' Corkscrew Willow SOLANACEAE Lycopersicon esculentum (Cultivar) Cherry Tomato TROPAEOLACEAE Tropaeolum majus Nasturtium UMBELLIFERAE Foeniculum vulgare Fennel VALERIANACEAE Centranthus ruber Kiss Me Quick MONOCOTYLEDONAE AGAVACEAE Agave spp. Agave ALLIACEAE Allium triquetrum Three Corner Garlic ARACEAE Zantedeschia aethiopica White Arum Lily GRAMINEAE Arundo donax Avena sp. Cortaderia selloana Ehrharta sp. Pennisetum clandestinum Pentaschistis thunbergii Phalaris sp. Piptatherum miliaceum Bamboo, Spanish Reed Wild Oats Pampas Grass Kikuyu Pussy Tail Phalaris Rice Millet IRIDACEAE Chasmanthe floribunda var. floribunda Homeria sp. Iris (Cultivar) Aunt Eliza Cape Tulip Iris LILIACEAE Agapanthus orientalis Asparagus asparagoides Agapanthus Bridal Creeper Ashby Reserve Maintenance Plan, June 2003 KEYS TO THE CONSERVATION STATUS OF INDIGENOUS FLORA AND FAUNA IN THE RESERVE Ashby Reserve Maintenance Plan, June 2003 Ashby Reserve Maintenance Plan, June 2003 Ashby Reserve Maintenance Plan, June 2003 APPENDIX – 4 FAUNA SURVEY Ashby Reserve Maintenance Plan, June 2003 FAUNA SURVEYS IN SHEPHERDS HILL RECREATION PARK (NPWSA) & WATIPARINGA NATIONAL TRUST RESERVE. Refer to Appendix 3 for a key to conservation ratings Conservation Status Class AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES Common Name Scientific Name Yellow-rumped Thornbill Yellow Thornbill Eastern Spinebill Skylark Red Wattlebird Little Wattlebird Richard's Pipit Wedge-tailed Eagle Dusky Woodswallow Sulphur-crested Cockatoo Galah Little Corella Fan-tailed Cuckoo Grey Shrike-thrush Yellow-tailed BlackCockatoo European Goldfinch Horsfield's Bronze Cuckoo (Rufous-tailed Bronze Cuckoo) Grey Shrikethrush Rock Dove Black-faced Cuckoo-shrike Little Raven Laughing Kookaburra Varied Sitella Mistletoebird White-faced Heron Black-shouldered Kite Eastern Yellow Robin Brown Falcon Nankeen Kestrel Crested Shrike-tit Musk Lorikeet Australian Magpie-lark Australian Magpie Welcome Swallow Tree Martin Silver Gull White-plumed Honeyeater Singing Honeyeater Superb Blue Wren Superb Fairy-wren Acanthiza chrysorrhoa Acanthiza nana Acanthorhynchus tenuirostris Alauda arvensis Anthochaera carunculata Anthochaera chrysoptera Anthus novaeseelandiae Aquila audax Artamus cyanopterus Cacatua galerita Cacatua roseicapilla Cacatua sanguinea Cacomantis flabelliformis Calluricincla harmonica Calyptorhynchus funereus Noisy Miner White-naped Honeyeater Budgerigar Red-browed Finch Southern Boobook Manorina melanocephala Melithreptus lunatus Melopsittacus undulatus Neochima temporalis Ninox novaeseelandiae Metro Region SA MLR U C U C U U V V V V C Carduelis carduelis Chrysococcyx basalis Colluricincla harmonica Columba livea Coracina novaehollandiae Corvus mellori Dacelo novaeguineae Daphoenositta chrysoptera Dicaeum hirundinaceum Egretta novaehollandiae Elanus axillaris Eopsaltria australis Falco berigora Falco cenchroides Falcunculus frontatus Glossopsitta concinna Grallina cyanoleuca Gymnorhina tibicen Hirundo neoxena Hirundo nigricans Larus novaehollandiae Lichenostomus penicillatus Lichenostomus virescens Malurus cyaneus C C C C Ashby Reserve Maintenance Plan, June 2003 Class AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES AVES REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA REPTILIA AMPHIBIA AMPHIBIA Common Name Scientific Name Crested Pigeon Golden Whistler Rufous Whistler Spotted Pardalote Striated Pardalote House Sparrow Scarlet Robin Common Bronzewing Common Pheasant New Holland Honeyeater Crimson Rosella (Adelaide form) and Yellow Rosella Eastern Rosella Tawny Frogmouth White-browed Babbler Red-rumped Parrot Grey Fantail Willie Wagtail Weebill Grey Currawong Spotted Turtle-dove (Common, European) Starling Common Starling Rainbow Lorikeet Blackbird Common Blackbird Silvereye Lined Worm-lizard Marbled Gecko Eastern Striped Skink Adelaide Snake-lizard Cunningham's Skink Tree Skink Three-toed Earless Skink Garden Skink Bougainville's Skink Dwarf Skink Snake-eyed Skink Barking Gecko Marbled Gecko Common Bearded Dragon/ Eastern Bearded Dragon Red-bellied Black Snake Eastern Brown Snake Ocyphaps lophotes Pachycephala pectoralis Pachycephala rufiventris Pardalotus punctatus Pardalotus striatus Passer domesticus Petroica multicolor Phaps chalcoptera Phasianus colchicus Phylidonyris novaehollandiae Platycercus elegans Sleepy Lizard (Shingleback) Eastern Bluetongue Thick-tailed Gecko Brown Froglet Marbled Frog Tiliqua rugosa Conservation Status MLR Metro SA Region C U U C Platycercus eximius Podargus strigoides Pomatostomus superciliosus Psephotus haematonotus Rhipidura fuliginosa Rhipidura leucophrys Smicrornis brevirostris Strepera versicolor Streptopelia chinensis Sturnus vulgaris Sturnus vulgaris Trichoglossus haematodus Turdus merula Turdus merula Zosterops lateralis Aprasia striolata Christinus marmoratus Ctenotus robustus Delma molleri Egernia cunninghami Egernia striolata Hemiergis decresiensis Lampropholis guichenoti Lerista bougainvillii Menetia greyii C U U C E Nephrurus milii Phyllodactylus marmoratus Pogona barbata U Pseudechis porphyriacus Pseudonaja textilis V Tiliqua scincoides Underwoodisaurus milii Crinia signifera Limnodynastes tasmaniensis V V Ashby Reserve Maintenance Plan, June 2003 APPENDIX – 5 WEEDING CALENDAR Ashby Reserve Maintenance Plan, June 2003 NOV h c s s h h h d h h d h h d h h b b l c h h l h l c h h s h h h h h d h h c s h h c s h s h h h s h b b b l l l l h b h c c b b b h s g c l b b l c h h l h l c h h s h h b h h c c l c l c c h c l c l c b h s g h h c l c l c h h h b b c c s h b h c h s g h c l h DEC OCT d SEP JUL JUN MAY APR MAR d AUG a silvery hair-grass African daisy an agapanthus lily annual veldt grass black nightshade blackberry blackberry boneseed branched centaury broad-leaved dock bulbil watsonia burr-medic Capeweed cleavers common sow-thistle common vetch dandelion deep-rooted catsear desert ash dog rose hares foot clover hop clover introduced Grevilleas jointed rush Monterey cypress Montpellier broom narrow leafed clover perennial ryegrass phalaris pussy tail quaking grass ribgrass rigid brome rough dog's tail grass sallow wattle salvation Jane scabious scarlet or blue pimpernel soursob South African weed orchid squirrel-tailed fescue St. John’s wort sweet pittosporum sweet pittosporum tree lucerne tree lucerne tree lucerne; tagasaste FEB JAN WEEDING CALENDAR (ROCHE, M. 2002) s Ashby Reserve Maintenance Plan, June 2003 J A N tree lucerne; tagasaste white clover wild “fruit-trees” wild oat wild radish h = hand pull s = spot spray f = frill and fill b = weed brush g = grub l = drill and fill F E B M A R A P R l M A Y l J U N c = cut and swab d = glove of death J U L A U G l h S E P l h h h h h O C T N O V l l D E C Ashby Reserve Maintenance Plan, June 2003 APPENDIX – 6 RESERVE RECORD SHEET Robertson, M. (1995) Ashby Reserve Maintenance Plan, June 2003 Ashby Reserve Maintenance Plan, June 2003 APPENDIX – 7 EXEMPTIONS UNDER THE NATIVE VEGETATION ACT 1991 Ashby Reserve Maintenance Plan, June 2003 NATIVE VEGETATION COUNCIL A Guide to the Exemptions under the Native Vegetation Act 1991 The Regulations under the Native Vegetation Act 1991 include a number of exemptions. These set out circumstances in which native vegetation can be cleared without the need for specific consent from the Native Vegetation Council. In general, the exemptions allow for the clearance of vegetation associated with property management This information sheet has been prepared to provide guidance regarding the exemptions. In some cases, even though clearance may be exempt under the Native Vegetation Act, there may be constraints under other legislation which need to be considered. In the following table, the first column indicates the reference number of each exemption as it appears in the Native Vegetation Regulations. The second column indicates the actual wording of the exemption, while the third provides comment to assist in the interpretation of each exemption. Further Information Additional information about the exemptions can be obtained from the Native Vegetation Council Secretariat as follows. Postal Address: GPO Box 1047 ADELAIDE SA 5001 Street Address: 270 The Parade KENSINGTON SA 5068 Telephone: 08 8204 8739 Facsimile: 08 8204 8724 Ashby Reserve Maintenance Plan, June 2003 Native Vegetation Council, May 1999 Exemption Wording of Exemption No. & Topic Exemption 3(1)(a): Clearance under other legislation Where the clearance is authorised or required by an Act or regulation. Comment / Explanation If another Act or regulation authorises or requires the clearance of native vegetation in specified circumstances then, provided that those circumstances apply, no approval under the Native Vegetation Act is needed. For this to apply, the other Act or regulation must be quite specific in referring to clearance of native vegetation. For example, the Country Fires Act 1989 empowers authorised officers to issue notices requiring landholders to take steps to reduce fire hazard. However, the Act does not refer specifically to the clearance of native vegetation to reduce fire hazard. Therefore, the clearance of native vegetation, if specified in a notice issued under the Country Fires Act, is not exempt under this exemption. Exemption 3(1)(b): Buildings & Structures Where the clearance is incidental to the lawful erection of a building or other structure. Clearance of native vegetation for the establishment of a dwelling, shed or other building or structure is exempt provided that other relevant approvals have been obtained. For example, clearance of a house site is exempt provided that building approval has been obtained from the local council. In some cases it may be unclear whether a proposed item is legally defined as a structure or not. If there is any doubt, it is suggested that the Native Vegetation Council be contacted for advice. Exemption 3(1)(c): Where – (i) the clearance is incidental to a proposed development to which section 48 of the Development Act 1993 applies; and (ii) an environmental impact statement, public environment report or development report, and an Assessment Report, relating to the development have been prepared; and (iii) the Minister administering the Development Act 1993 referred the environmental impact statement, public environmental report or development report to the This exemption will have little relevance for most rural landholders. It applies where a proposed development is considered to be of such social, economic or environmental importance that an environmental impact statement, public environment report or development report is declared to be necessary under the Development Act. Where this is the case and the clearance of native vegetation is involved, a clearance application to the Native Vegetation Council is not required. Instead, the Council is given the opportunity to provide comment which is then taken into account by the Minister administering the Development Act. Ashby Reserve Maintenance Plan, June 2003 Native Vegetation Council for comment and report and (A) (iv) Where the clearance is incidental to the building, repair or maintenance work of the Crown. Exemption 3(1)(d): Works by the Crown and 3(1)(da) associated electricity supply companies the Native Vegetation Council provided comments which were included (wholly or substantially) in the relevant Assessment Report; or (B) the Council failed to provide comments within eight weeks after receiving the Minister’s invitation for comment and report; and the Governor has granted his or her consent to the proposed development under Section 48 of the Development Act 1993 and the vegetation is cleared in accordance with that consent. Where – (i) (ii) (iii) the clearance is incidental to the building repair and maintenance work of an electricity entity within the meaning of the Electricity Act 1996; and where clearance has been approved in writing by the Minister responsible for the administration of that Act; and where person undertaking the clearance complies with any conditions of approval imposed by the Minister This means that building, repair or maintenance works by Government authorities, which involve clearance of native vegetation, do not require clearance consent. Routine tree-trimming by electricity supply authorities under powerlines, for example, is exempt. While this may be seen as applying one rule to the public and another to the authorities, it takes into account two particular considerations. The first is that electricity supply authorities need to undertake regular trimming to ensure public safety, and a requirement for clearance consent would not be practicable. The second is that many of the public authorities employ their own environmental staff who are able to advise their respective organisations on conservation issues. Ashby Reserve Maintenance Plan, June 2003 Exemption 3(1)(e): Dams Where – (i) the clearance is incidental to the lawful construction of a dam that will be used in primary production, and (ii) the vegetation to be cleared comprises trees with a stem diameter at the lowest point on the stem above ground level of over 150 millimetres; and (iii) the land on which the vegetation is situated has been cleared of all other native vegetation and has been maintained during the immediately preceding five years for cultivation or pasture. All three parts of this exemption must be satisfied before it applies. An example of where it does apply is where there are native trees (other than red gums) which are larger than the specified minimum size in a farm paddock and growing over developed pasture. Provided there is no other native vegetation on the site and it has been maintained as pasture for the preceding five years, the trees can be cleared for the purpose of establishing a dam. Conversely, if the trees are red gums or smaller than the specified size, or if there are native grasses, sedges or other native plants growing under the trees, or if the dam is not for use in primary production (eg as with a golf course), the exemption does not apply and a clearance application is needed. [Note: this exemption does not apply to River Red Gum, Eucalyptus camaldulensis] Exemption 3(1)(f): Clearance around Dwellings Where the vegetation is situated within 20 metres of a dwelling. Exemption 3(1)(g): Clearance for Safety Where – (i) the purpose of the clearance is to prevent, or reduce, the risk of personal injury or damage to property (but not injury or damage caused by fire); and (ii) the plant or plants comprising the vegetation exceed two metres in height; and (iii) the nature and extent of the clearance is reasonable This exemption allows for clearance of native vegetation around houses or dwellings for purposes such as fire protection. It does not apply to other buildings such as sheds, halls or commercial premises. This exemption is essentially designed to protect people or property from trees or tree branches which are likely to fall. For example, if a tree is close to a house or other building and has branches which are sick or weak and appear likely to fall on the building, trimming of the branches or possibly removal of the tree would be exempt. Removal of the tree would be considered to be “reasonable” where the whole tree was unsafe or where the trimming of unsafe branches would be so severe as to destroy the amenity value of the tree. The same would apply where the tree was in an area regularly used by people (eg a children’s playground), although in this case other options, such as relocation of the playground, should also be considered. The exemption would not usually apply where the degree of risk was minimal (eg a tree in the middle of a paddock). Where there is any doubt about the health of a tree, or where large and significant trees are involved, it is advisable to get professional advice from a qualified tree surgeon or other tree expert. Ashby Reserve Maintenance Plan, June 2003 Exemption 3(1)(h): Fire Prevention and Protection (See also 3(1)(k) 3(1)(ha): Fire Protection, Houses and Buildings Exemption 3(1)(i): Clearance for Firewood and Fenceposts Where – (i) the clearance consists of burning for the purpose of reducing combustible material on land; and (ii) the owner of the land or the district bushfire prevention committee under the Country Fires Act 1989 for the area in which the land is situated has prepared a management plan that applies to ht e burning of the vegetation and the Council has given its approval to the management plan; and (iii) the person who carries out the burning complies with the requirements of the management plan. The burning of native vegetation is classified as clearance. However, burning of native vegetation for fuel reduction purposes is exempt where it complies with a management plan which has been approved by the Native Vegetation Council. (i) where the only purpose of the clearance is to protect a house or other building from the threat of fire; and the person undertaking the clearance complies with guidelines prepared by the Council relating to the clearance (the Council must consult the Country Fire Service Board, the Soil Conservation Council, the South Australian Farmers Federation, the Local Government Association of SA, and the Conservation Council of SA when preparing the guidelines). Clearance for fire protection within 20m of dwellings is provided for in exemption 3(1)(f), while clearance within 5m of other buildings is allowed under exemption 3(1)(k) (see below).However, in some instances clearance more than 20m from dwellings or more than 5m from other buildings is needed. This exemption provides the opportunity for the Native Vegetation Council to prepare guidelines for clearance for fire protection beyond the 20m or 5m zone so that necessary clearance can be undertaken without the need for clearance applications. At the same time the exemption requires broad consultation with a range of community groups about the content of the guidelines. Where (i) the clearance is solely for the purpose of providing fencing material (but not for the construction of trellises) or firewood for use (for a period not exceeding two years from the time of the clearance) by the owner of the land on which the vegetation was growing or was situated; and (ii) the vegetation has a stem diameter at one metre above the ground of 200 millimetres or less; and (iii) the nature and extent of the clearance is reasonable. [Note: river red gum (Eucalyptus camaldulensis) cannot be cleared under this exemption.] All three parts of this exemption must be satisfied before it applies. It allows the owner of the land to clear native vegetation for fenceposts or firewood, but only for the owner's personal use. Vegetation cleared under this exemption cannot be sold or given away. (ii) A fuel reduction burning management plan does not have to relate to a single property. A group of adjoining landholders can submit a single plan setting out a coordinated burning program across their properties. Alternatively, the local bushfire prevention advisory committee can prepare a plan encompassing one or more properties for approval by the Native Vegetation Council. The Native Vegetation Council Secretariat can provide advice regarding information which should be included in a management plan. The Native Vegetation Council Secretariat can advise about the current status of the guidelines. At any one time, the amount cleared should be sufficient for the owner's requirements for a period not exceeding two years. Any trees with a stem diameter more than 200mm at one metre above ground level are not to be cut and no red gums (of any size) are to be cleared for this purpose. This exemption therefore allows a landholder to continue with traditional practices of gathering firewood or fenceposts from vegetation on the property, while placing some limits on those practices. Ashby Reserve Maintenance Plan, June 2003 Exemption 3(1)(j): Fenceline Clearance and Tracks Part (i) of this exemption allows landholders to clear a strip of native vegetation up to five metres wide to provide access for fence maintenance or construction. It does not provide an automatic right to providing a strip of cleared land of not more than five clear a five metre strip along fence. If vegetation is within five metres but does not impede reasonable metres in width on each side of a fence (or of a fence in access to the fence, the exemption cannot be used to clear the vegetation. the course of construction), to give access for the purpose of maintaining or establishing the fence; or This exemption does not apply to native vegetation growing on road reserves. A separate exemption a track for the passage of vehicles having four or more (see 3(1)(l) below) applies to that situation. wheels and that is not more than five metres in width. Part (ii) of the exemption allows for clearance of a strip of native vegetation up to five metres wide for an access track. This may be for general access to a property or for fire access purposes. However, the exemption is restricted to access tracks for use by vehicles with four or more wheels. Thus it does not allow for clearance of tracks for bicycles or walkers. Where the clearance is for the purpose of: (i) (ii) Exemption 3(1)(k): Where the clearance is for a fire break and – Fire Breaks (i) The fire break is not more than five metres in width; or (Fuelbreaks) (ii) The fire break is not more than 15 metres in width and Under this exemption, landholders are able to clear fuelbreaks up to five metres wide in native vegetation. This should be done in accordance with advice or guidelines from the Country Fire Service (CFS). (A) the fire break is situated on a property the sole use, or one of the principal uses, of which is primary production; and (B) the purpose of the fire break is to protect that property; and (C) the fire break is situated within the area of a rural council as defined in the Country Fires Act 1989; and (D) the district bushfire prevention committee established under the Country Fires Act 1989 for that area has given its consent to the clearance. In specific situations, where all of the requirements of (A) to (D) have been met, fuelbreaks up to 15 metres wide can be constructed. This applies where the property is used mainly for primary production, the fuelbreak is needed for the protection of that property and has been approved by the local district bushfire prevention committee. Thus the 15 m exemption cannot be used where the property is not mainly used for primary production. 3(1)(ka) Where the clearance is for a fire break and – This exemption allows for fuelbreaks in excess of the 5m or 15m breaks (see above) to be established in some circumstances, without the need for a clearance application. The exemption applies where a management plan, showing the proposed breaks and describing why they are needed, has been Ashby Reserve Maintenance Plan, June 2003 (i) (ii) Exemption 3(1)(l): Roadside Vegetation the owner of the land on which the vegetation is growing or the district bushfire prevention committee under the Country Fires Act 1989 for the area in which the land is situated has prepared a management plan that applies to the clearance of the vegetation and the Council has given its approval to the management plan; and the person undertaking the clearance does so in accordance with the management plan. Clearance by, or on behalf of, a local council where – (i) (ii) the vegetation is growing on a road reserve in the area of the council; and the person undertaking the clearance complies with a management plan relating to the clearance prepared by the local council and approved by the [Native Vegetation] Council or, if no such plan has been prepared and approved, with guidelines prepared by the [Native Vegetation] Council relating to the clearance. approved by the Native Vegetation Council. The plan may be submitted by a landholder for a single property, a group of landholders for a fuelbreak network across several properties, or the local district bushfire prevention committee for one or more properties. A road reserve is defined here as the whole area of land surveyed and defined as public land for the purpose of establishing a road. It includes the made road itself and the strip of land on either side of the made road extending to the boundary of the adjoining land. That boundary is usually fenced but this is not always the case. The strip of public land alongside the made road is known as the roadside and often has a cover of native vegetation described as roadside vegetation. With only one or two exceptions roadside vegetation is the responsibility of the relevant Local Government council, described in the exemption as the “local council”. Even on main roads managed by Transport SA (except for the South Eastern Freeway), the roadside vegetation is mainly the responsibility of the local council. The clearance of native vegetation from roadsides is controlled under the Native Vegetation Act. However, this exemption allows for clearance by a local council, or someone acting on behalf of the local council, where the clearance complies with a roadside management plan that has been approved by the Native Vegetation Council. If no such plan has been prepared and approved, the exemption allows clearance where this complies with guidelines issued by the Native Vegetation Council. The Council’s booklet “Guidelines for the Management of Roadside Vegetation, is available from the Native vegetation Council Secretariat. Thus there is no compulsion on local councils to produce roadside vegetation management plans, but many have done so and have found the plans to be very beneficial. Ashby Reserve Maintenance Plan, June 2003 Exemption 3(1)(m): Local Council Reserves Clearance by, or on behalf of, a local council where – (i) the vegetation is on a reserve (other than on a road reserve) vested in the council or the care, control and management of which is vested in the council; and (ii) the person undertaking the clearance complies with a management plan relating to the clearance prepared by the council and approved by the [Native Vegetation] Council. Each local council in South Australia has responsibility for a number of usually small areas of public land which can be broadly defined as council reserves. These include Cemetery Reserves, Recreation Reserves, Stone Reserves and others. Many of these council reserves contain native vegetation, the clearance of which is controlled under the Native Vegetation Act. The clearance of native vegetation from council reserves requires the consent of the Native Vegetation Council unless, by means of this exemption, the clearance complies with an overall management plan for the particular reserve(s) which has been approved by the Native Vegetation Council. The Native Vegetation Council Secretariat can provide guidance regarding the preparation of local reserve management plans. Exemption 3(1)(n): Taking of Seeds and Specimens Exemption 3(1)(o): Mining Activities Where the clearance comprises the taking of – (i) a specimen; or (ii) a cutting for propagation; or (iii) such part of a plant as is required in order to obtain the seeds of the plant, The collection of seeds, cuttings or other specimens from native plants does not require consent from the NVC provided that damage to the plant is only very localised. As a guide, cutting a substantial branch off a tree or bush to collect seed would not be regarded as exempt; nor would the removal of virtually all harvestable seed from a single plant. and does not cause substantial damage to the plant. The collection of seeds, cuttings and specimens from native vegetation on private land requires the consent of the landholder. For collection from roadsides, the consent of the local council and National Parks and Wildlife SA is needed. A National Parks permit is also needed for any such collection from Crown land. Where the clearance is incidental to exploratory or mining operations authorised under the Mining Act 1971 or the Petroleum Act 1940. Clearance of native vegetation associated with authorised mineral exploration or mining activities is exempt. Borrow pits for road construction and pits on private property are not authorised under the Mining Act and are therefore not covered by this exemption. Ashby Reserve Maintenance Plan, June 2003 Exemption 3(1)(p): Mining Operations at a Private Mine Where the clearance is incidental to mining operations at a private mine at which mining operations have not been discontinued for a period exceeding 12 months at any time after 21 November 1984. This is a more specific exemption than 3(1)(o) relating to native vegetation clearance associated with private mining operations. The exemption applies at a given site provided that there has not been a break in the operations for more than a 12 month period since 21/11/84. Exemption 3(1)(q): Clearance to maintain Pasture, Cropping or Forestry. Where – This exemption is largely about allowing clearance of regrowth native vegetation on land that has been used for cultivation, pasture or forestry over the previous five years. All three parts ((i) – (iii)) of the exemption need to be satisfied. (i) (ii) the land on which the vegetation is situated was used for cultivation, pasture or forestry within five years immediately before the proposed clearance occurs; and the clearance is necessary to maintain the land so that it can continue to be used for cultivation, pasture or forestry to the extent to which it had been used for that purpose within the immediately preceding five years; and On such land, native vegetation with a stem diameter at the lowest point on the stem above ground level of 150mm or less, can be cleared to allow the same level of use for cultivation, pasture or forestry as has applied within the last five years. Any clearance to achieve a greater area of cleared land than has existed within the previous five years would require a clearance application to the NVC. (iii) Exemption 3(1)(r): Grazing (A) the vegetation has a stem diameter at the lowest point on the stem above ground level of150 millimetres or less; or (B) the vegetation is of the genus Xanthorrhoea. Reference to Xanthorrhoea (yacca or grass tree) in (B) means that, provided the other conditions apply, plants of this genus can be cleared even if the stem diameter is greater than 150mm. Clearance by grazing of domestic stock in a manner and a rate that is consistent with the manner in which, and the rate at which, the land has been grazed by domestic stock of the same species during the previous 10 years. Grazing of native vegetation by domestic stock can cause substantial damage and is therefore regarded as clearance in some situations. For example, introduction of stock into previously ungrazed native vegetation would require clearance consent from the NVC. This exemption allows landholders to continue grazing in areas containing native vegetation provided that the type and rate of grazing is the same as has applied over the previous 10 years. A change from one type of stock to another (eg sheep to cattle) would require clearance consent, as would an increase in stocking rate by the same species over and above that which occurred in the previous ten years. Ashby Reserve Maintenance Plan, June 2003 Exemption 3(1)(s): Native Vegetation associated with Management Problems If – (i) the vegetation is causing land management problems because it is – (A) detrimentally affecting other native vegetation; or (B) growing on land previously cleared of native vegetation; and (ii) the person undertaking the clearance complies with – (A) a management plan relating to the proposed clearance approved by the [Native Vegetation] Council; or (B) if no such plan has been approved – guidelines prepared by the Council relating to the proposed clearance (the Council must consult the Soil Conservation Council, the SA Farmers Federation, the Local Government Association of SA and the Conservation Council of SA when preparing the guidelines). Exemption 3(1)(t): Pest Control (APPCC Act) Where – (i) it is not reasonably practical to comply with an obligation under the Animal and Plant Control (Agricultural Protection and Other Purposes) Act 1986 to destroy or control animals or plants without at the same time destroying, damaging or otherwise clearing native vegetation; and (ii) the person undertaking the clearance complies with guidelines prepared by the Council relating to the clearance (the Council must consult the Animal and Plant Control Commission, the Soil Conservation Council, the SA Farmers Federation, the Local Government Association of SA and the Conservation Council of SA when preparing the guidelines). Both parts (i) and (ii) of this exemption need to be satisfied. It applies to native vegetation which is affecting the health of other native species. An example of this is mistletoe, a group of semi-parasitic native plants which can stress native trees in some situations. The exemption also applies to other native plants which are regrowing on previously cleared land and causing management problems for landholders – problems which are not dealt with by exemption 3(1)(q) (see above). An example of this is certain acacias regrowing on previously cleared lands in northern agricultural regions. Because of the large size of the properties and the slow growth of the acacias, exemption 3(1)(q) may not be sufficiently flexible to enable effective management of these plants. Another example is reeds regrowing at boat ramps or pumping sites: 3(1)(q) does not cope with this situation at all. Native plants in these situations can be cleared if a plan dealing with their management has been approved by the NVC and the clearance is then in line with that plan. Alternatively, if no such plan has been prepared and approved, the clearance is only exempt if it complies with guidelines issued by the NVC after broad consultation with a range of community groups as named in the exemption. The Native Vegetation Council Secretariat can advise on the current status of any guidelines prepared under this exemption. Both parts (i) and (ii) of this exemption need to be satisfied. It provides an exemption for clearance of native vegetation where this is essential for the control of pest plants or animals, but only applies where that clearance is in line with guidelines issued by the NVC. In preparing the guidelines, the NVC is required to consult the Animal and Plant Control Commission and several other community groups. This exemption therefore recognises that there will be some situations where the control of scheduled pests will not be possible without some damage to associated native vegetation. As long as the guidelines are applicable, no clearance consent will be required from the NVC. The Native Vegetation Council Secretariat can advise on the current status of any guidelines under this exemption. Ashby Reserve Maintenance Plan, June 2003 Exemption 3(1)(u): South Drains East Exemption 3(1)(v) Streaky Bay / Port Lincoln Water Catchment Where – (i) the land on which the vegetation is situated is in the County of Cardwell; and (ii) the clearance is to provide cleared land for the purpose of the construction and maintenance of water management works (within the meaning of the South Eastern Water Conservation and Drainage Act 1992) by, or on behalf of, the South Eastern Water Conservation and Drainage Board pursuant to section 34 of that Act; and (iii) the Board or the person undertaking the clearance on its behalf has prepared a management plan in relation to the clearance of the vegetation and the Native Vegetation Council has given its approval to the plan; and (iv) the Board or the person undertaking the clearance on its behalf complies with the plan; All parts of this exemption need to be satisfied. Where – (i) the land on which the vegetation is situated is in the County of Flinders or Robinson; and (ii) the clearance is necessary to preserve or augment an underground water supply of a city or town; and (iii) the clearance has been requested by the local council; and (iv) the owner of the land or the person who has the care, control and management of the land has prepared a management plan in relation to the clearance of the vegetation and the Native Vegetation Council has given its approval to the plan; and (v) the person undertaking the clearance complies with the plan. All parts of this exemption need to be satisfied It provides an exemption for clearance of native vegetation for the construction of drains by or on behalf of the South Eastern Water Conservation and Drainage Board within certain parts of the south east (County of Cardwell) of the state. That clearance must be undertaken in accordance with a management plan prepared by the Board and approved by the Native Vegetation Council. Any clearance must comply with the approved management plan. Provides for the clearance of native vegetation as requested by a local Council within established water reserves near Streaky Bay and Pt Lincoln. Clearance requires the development of a management plan that needs to be approved by the Native Vegetation Council. Any clearance must comply with the approved management plan. Ashby Reserve Maintenance Plan, June 2003 Additional Clarifying Regulations Exemption 3(3): For the purpose of determining the width of the fire break referred to in subregulation (1) (k) (ii), the fire break will be taken to include – (a) (b) Exemption 3 (4): Exemption 3 (5): Provides a framework to guide the District Bushfire Prevention Committees when considering the extension of fuel breaks to 15 metres in accordance with the previous firebreak exemption 1(k)(ii). any area of land cleared to give access for the purpose of maintaining or establishing a fence that adjoins, or is adjacent to, the fire break; and any area of land cleared for the purposes of a track that adjoins or is adjacent to the fire break The decision of a district bushfire prevention committee to consent to the proposed clearance of land under subregulation (1) (k) (ii) (D) must be made in accordance with guidelines relating to the clearance of native vegetation for fire break purposes in the committee’s area adopted by the Native Vegetation Council under section 25 of the Act. When a district bushfire prevention committee resolves to grant consent to the clearance of fuel breaks greater than 15 metres, that consent must be in accordance with guidelines developed by the Native Vegetation Council. If relevant guidelines have not been adopted by the Council, the district bushfire prevention committee must, when making its decision, have regard to the following: Where Native Vegetation Council guidelines have not been prepared the district bushfire prevention committee must give consideration to both the need to protect farming land and the significance of the vegetation under consideration. (a) the need to protect land used for primary production; and (b) the need to preserve the vegetation for such of the reasons set out in paragraphs (a) to (k) (inclusive) of schedule 1 of the Act as are applicable. When making a decision for the clearance of a firebreak greater than 5 metres, the significance of any vegetation proposed for clearance should be assessed against the Principles of Clearance (Schedule 1, Native Vegetation Act) in the same manner as required by the Native Vegetation Council. This may involve consultation with Biodiversity Assessment Section of DEH. The Native Vegetation Council Secretariat can provide guidance regarding the preparation of fuel breaks guidelines. Ashby Reserve Maintenance Plan, June 2003 Exemption 3 (6): Exemption 3 (7) If a district bushfire prevention committee is of the opinion that there is more than one effective method of clearing native vegetation in the circumstances of an application for its consent under subregulation (1) (k ) (ii) (D), it must, if it gives its consent to the clearance and subject to any relevant guidelines adopted by the Native Vegetation Council, direct the applicant to use the method of clearance that will cause the least environmental damage. Where a bushfire prevention committee requires a wider fuel break the committee is required to give consideration to alternative methods of establishing an effective fuel break, eg rolling, slashing or burning, rather than use of heavy machinery to create a mineral earth break. A committee’s consent to clearance under subregulation (1) (k) (ii) (D) is subject to – Allows the bushfire prevention committee to attach conditions to a decision for a fuel break of up to 15 metres, including a condition that the applicant complies with the conditions. (a) a condition that the applicant comply with a direction (if any) given to the applicant under subregulation (6); and A failure to comply with a condition is considered to be a breach of the Native Vegetation Act. (b) such other conditions as the committee imposes. That process should include consideration of ongoing impact of the clearance, eg weed establishment, growth of introduced grasses etc which may not reduce the fire threat and increase the management problem within the vegetation. 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