South Selkirk Cougar Ecology and Predation Progress Report
Transcription
South Selkirk Cougar Ecology and Predation Progress Report
COLUMBIA BASIN FISH & WILDLIFE COMPENSATION PROGRAM SOUTH SELKIRK COUGAR ECOLOGY AND PREDATION PROGRESS REPORT PREPARED BY Ross Clarke FOR Columbia Basin Fish & Wildlife Compensation Program 31 January 2002 IN PARTNERSHIP WITH and Washington State University www.cbfishwildlife.org South Selkirk Cougar Ecology and Predation Progress Report December 1998 to October 2001 By: Ross Clarke Columbia Basin Fish & Wildlife Compensation Program 103-333 Victoria St. Nelson, B.C. V1L 4K3 Date: January 31, 2002 Co-operators: Columbia Basin Fish & Wildlife Compensation Program Columbia Basin Trust Ministry of Water, Land, and Air Protection Washington State University Acknowledgments Special thanks go to Dave Lewis and Stuart Hawes for the time spent searching and collaring cougars and Dave Mairs of Silvertip Aviation for collecting aerial telemetry location data. John Gwilliam and John Krebs for technical assistance. Ian Parfitt and Tasha Kirby for creating the GIS maps from the telemetry data. Don Katnik and Hugh Robinson, both Washington State University graduate students for their contribution with telemetry data collection and cougar capture respectively. Thanks to Darkwoods Forestry, Beaumount Timber, Stagleap Ranch, Jerry Nellestijn, and Kevin Maloney for permission to access their property during the course of the three winters. Thanks to the houndsmen - Dave Basaraba, Gerry Brown, Mike Dawson, and Rob Kuny who participated in and supported the project. i Table of Contents Page 1 Executive Summary Background 2 Objectives 2 Study Area 2 Technical Details 3 Results to Date 5 Public Relations 12 Proposed Activities 13 Recommendations 13 References 14 Appendix 1 - Houndsmen Protocol 15 Appendix 2 - Immobilization Protocol 16 Appendix 3 - Capture Data Form 17 Appendix 4 – Examples of Individual Cougar Home Ranges 18 ii Figures Page Figure 1 - South Selkirk Study Area 4 Figure 2 – All telemetry Locations to October 31, 2001 8 Figure 3 – Cougar, Mule Deer and Caribou Distribution 9 Figure 4 – Cougar Harvest Data for M.U. 4-07 and 4-08 (1977-1999) 11 iii Executive Summary This progress report for the South Selkirk Cougar Ecology and Predation Project presents the preliminary findings for the first 36 months of field activity up to October 31, 2001 and outlines the direction to the end of the project. Initially the study area encompassed the area between the Salmo River and the Kootenay River and from Porcupine Creek south to the Canada/USA border. In the second year the study area was expanded north to include the south shore of the west arm of Kootenay Lake totaling 2630km2. Expansion was necessary to try to increase the sample size and more accurately overlap the South Selkirk Caribou’s northern range. A total of sixteen (9F, 7M) cougars were collared over the course of three years using houndsmen and trained cougar hounds. Cougars were treed 51 times during the threeyear period (20 on the Creston side, 29 on the Salmo side, and 2 on the south shore of the West Arm of Kootenay Lake). We have obtained a total of 1313 aerial telemetry locations from 16 individual animals radio collared between December 1998 and March 2001. Mean annual home ranges (100% MCP) were larger for resident males (744km2) than for resident females (642km2). There was no overlap in the annual home ranges among males but there was overlap with several female home ranges. Dispersal of juveniles was evident from radio locations of 3 females and 2 males. One female traveled 198 km from her natal area. Three of 7 mortalities were legally kill by cougar hunters. The majority of collared cougars remained at relatively low elevations with only brief movements to higher elevations during the summer. Preliminary analysis indicate that only 2 (1F,1M) of the 16 collared cougars exhibited seasonal overlap with caribou. In 1999 there were two collared caribou mortalities attributed to an individual collared cougar. The focus for the remainder of the project will be to monitor existing collared animals, attempt to monitor female reproductive status, experiment with “hair grabbers” to determine relative abundance through DNA analysis. A final report will be completed in 2002/2003. 1 Background In 1998, the Columbia Basin Fish & Wildlife Compensation Program (CBFWCP) in partnership with the Columbia Basin Trust (CBT), and Ministry of Water, Land, and Air Protection (MWLAP) initiated a cougar ecology and predation study in the South Selkirk Mountains (SSM) south of Nelson, B.C. (Woods 1998). Caribou in the SSM had a high rate of mortality during the summers of 1995 to 1997. Mule deer in the same study area also had significant losses to cougars in 1997. In order to reduce or reverse the losses of caribou and mule deer to cougar predation it was determined that there was the need to gather information on the South Selkirk cougar population, prey selection, habitat use, and general ecology. A parallel effort to determine cougar ecology and management requirements is currently underway in the SSM portion of Washington State and Idaho (Katnik 1998). In the British Columbia and Idaho portion of the study area hounds can be used to hunt cougars whereas in Washington State hounds are not allowed. The characteristics of hunted cougar populations have been described in other studies in Idaho (Hornocker 1969, 1970; Seidensticker et al. 1973), Wyoming (Logan 1985) and Alberta (Ross and Jalkotzy 1992) but differences in hunting regulations in the three jurisdictions may have implications on home range sizes, movement rates, and population parameters such as reproduction and recruitment. This progress report represents the first 36 months of field activity up to October 31, 2001 and summarizes field priorities in 2001-02 for cougars collared on the BC portion of the study area. The CBFWCP and the CBT have provided funding for year three of this project. Objectives 1) Determine the distribution and movement patterns of cougars in the South Selkirk Mountains. 2) Determine the seasonal habitat selection pattern of cougars in the SSM. 3) Investigate the overlap in habitat use of cougar, mule deer, white-tailed deer, and caribou with particular emphasis on the June to October period of high caribou mortality. 4) Identify specific cougar, which may be the cause of high caribou mortality during summer. Study Area The study area for the 1998/99 capture season was between the Salmo River on the west side of Kootenay Pass east to the Kootenay River and from Porcupine and Cultus Creeks south to the Canada/USA border (total area 1555 km2). The study area was expanded 2 during the 1999/2000 capture season (Figure 1) to include the area north to the West Arm of Kootenay Lake between the Pend d’Oreille River on the west side of Kootenay Pass east to the Kootenay River (total area 2630 km2). Expansion was necessary to try to increase the sample size and to monitor any cougars that may overlap the South Selkirk Caribou’s northern range south of the West Arm of Kootenay Lake. The area is within the western portion of Fish & Wildlife Management Unit 4-08 and includes all of 4-07. It is in the Southern Columbia Mountains Ecosection; biogeoclimatic zones include Interior Cedar hemlock (ICH; xw, dw, mw2), Engelmann Spruce-Subalpine Fir (ESSFwc4) and Alpine Tundra/Engelmann Spruce-Subalpine Fir (AT/ESSFwcp). The study area encompasses two Provincial Parks, three Forest Licenses, Darkwoods Forestry private land, and Small Business Forest Enterprise Program cutting areas. The southern portion of the study area is bisected by Highway 3. Cougar hunting within the study area is significant. Technical Details Tracking, Trailing, and Animal Capture Cougar tracking, trailing, and treeing was carried out by local houndsmen from the Nelson, Castlegar, Trail, and Creston area. They were given a “Houndsmen Protocol” (Appendix 1) detailing handling and responsibilities of the dogs on the project. The fieldwork was weather-dependent and only those days that were determined to be good for tracking by the field biologists working with the houndsmen were utilized. An “Immobilization Protocol” (Appendix 2) was also developed for the safe handling of the cougars and the safety of personnel in the field. Telezol was used for the immobilization at a concentration of 7mg/kg using a 3cc dart with a ½” barbless needle. Delivery of the drug was carried out using a “Cap Chur” gun with a brown charge. Provisions were made to lower immobilized cougars out of a tree if necessary with the use of climbing spurs and ropes although it was unnecessary during any of the captures. Once immobilized the cougars were ear-tagged in both ears with numbered rototags (NASCO; Modesto, Calif., USA), sexed, and examined for reproductive status and general condition. We identified cougar age classes (kitten, young adult and mature adult) by size and tooth wear and colour. DNA samples were collected. The cougars were then fitted with radio-collars with a four hour mortality delay (Lotek Engineering, Inc. Newmarket, Ontario LMRT-4). The collars were modified to include a canvas insert designed to rot through after ~ 2 years to free the cougar of the collar. Information collected during the capture, immobilization, and collaring can be found on the capture data form attached (Appendix 3). Safety of the field personnel and the immobilized cougars was given the highest priority. 3 Ha ll C d 20 2 0 00 R vale SAL M O 2 00 0 10 C r Ti l l i c um ed Lo m Su Cr ee k st Alice Siding mi t Creston H g ta O R ES T LM R Bou ndar y Cr ee k Figure 1. Selkirk Cougar Study Area Columbia Basin Fish and Wildlife Compensation Program -- April 03, 2002 Cougar Study Area - 3045 km2 0 5 10 15 20 25 km Scale: 1:500,000 - Map Projection: UTM Zone 11 - Datum: NAD 83 4 1000 A S Lis PRI e R S l p 2 000 T Cr a E n Co r UPPE Lost U 100 0 Creek ek r e Cr eek O D E 10 00 M r Nevada Mountain 00 Fru it C S ND LL 0 0 AY EN OT KO e d 0 100 v John Bull Mtn 0 ea 20 00 Peak k Leach Lake C R PE EI Sirdar Duck Lake Wynndel 00 e Cr e Bl a ze 0 20 B Mile Slough 20 Three Yellowstone Peak Mountain OR Six Mtn Cr 00 r l s on Wi k k Reno Mtn S hee p Gardens Waneta k 20 ee Salmo Erie Kelly Columbia sino e r e Ck E 0 00 I V ER 2 00 10e k Cr o lm 20 Kuskonook Kootenay Hi d den Cr e l l y 00 C Sisters Montrose ek re u l t us Cr eek e Cr Waneta Junction R ee k Gr o h Cre ek Apex Cr es ce nt 0 10 0 20 Creek Apex C Mount il Sk t SL OC A Cr n e r Skelly McGregor k Du c R Park Siding ek RI a Cr eek 00 VE Meadows k ee Cr Ross Spur Lakes 1000 VE R C O SL N m La i b Ymir Lower China Creek Champion Mount Mount i r Po r c up i ne y k i k ee 2 000 Baldy Mtn e e 20 Ym Cr Sa n ca Sanca Cr Porto Rico i e RI Ootischenia K Cr Cr a C Grassy Mountain e rw r Cr Er ird g Mtn Brilliant gar l i Ak ok Cr eek e Raspberry Ba r r e t t 2 000 Mtn Boswell n ma See ea ac e Haystack Mountain Akokli Cr t 00 Siwash Mtn 00 2 0 20 Skattebo Reach Thrums Cl Mtn 49 30 N d Copper Mtn Snowcrest White G Moun i Tarrys La 0 Cr ce Ymir Cr Glade 200 an Fr M C r r 20 00 e Cr 00 t l t e Ku od 00 i n Valley Shoreacres K E L A Cr k 10 n 00 e k 20C r e Blewett y wo t R on t t r l e Co o 2 00 0 k Gray Creek ws Na r r o ee k F ee Cape Horn Cr e re VE RI r Gr a y Pilot Pt Sunshine Bay a sc C Bonnington Falls South Slocan i Nelson Granite n C Procter C k n Harrop Atbara t ve Fi l e Go o e s Arm La u 00 10 Krestova Cr s M Taghum Beasley Corra Linn o H al l L ek Cr e ek Cr e k Cr ee ro Passmore an Park ek Cr e l me e W Willow Point Sp Balfour Longbeach Cresent Bay 00 00 Lebahdo Kootenay Bay t Queens Bay 0 20 Mt Eccles h g ha 2 Mount Grohman Winlaw Rice Old Tom Mtn Hooker Pass u Du 2 0 00 Appledale Crawford Bay 2 0 00 nee ka Perrys um t k Si A N Cr o Mount Cornfield C Nex R n 10 Walkers H E V 116 30 W e Ko I0 R0 117 00 W L emo Lemon Creek Y n i n g 117 30 W Bu r Huscroft Rykerts 49 00 N Data Collection Efforts to collect habitat and movement data were coordinated with parallel efforts in Washington State. Attempts were made to locate the cougars from the air in the winter using a Cessna 337 with an average of two flights per month from November through May and during the same flight used to track the radio-collared mule deer within the Salmo/Creston Study Area. Summer flights were shared with Washington State staff and Washington State University Ph.D. student with an average of three flights per month from June to October. Location data collection followed the methodology used in the West Kootenay Mule Deer Project (Gwilliam 1998) and included: UTM co-ordinates (NAD 27 in the United States and 83 in Canada) and Forest Cover Polygon Label (Species, Age, Height, Crown Closure). Location data precision was assumed to be +/- 100m based on similar aerial telemetry work done on wolverines in Revelstoke (John Krebs pers comm). Ground telemetry locations were conducted frequently to get general locations and movements and to classify kills of radio-collared cougars where possible. Ground telemetry was done on an opportunistic basis by Columbia Basin Fish & Wildlife Compensation (CBFWCP) staff and summer students. Data Analysis Home range analysis for individual cougar home ranges (Appendix 4) was determined using 100% Minimum Convex Polygon (MCP) (Mohr 1947). The minimum number of radio locations used for annual home range calculations was 25. Seasonal periods (winter and summer) were delineated on the basis of annual weather characteristics (Hemker 1984). Cougars were considered residents once the areas in which they moved became predictable over a minimum of four months (Ross and Jalkotzy 1992). Habitat analysis will be undertaken at the second order level (Johnson 1980) to compare seasonal habitats with the total area available to the cougar as defined by the collective home ranges of all the cougar upon completion of the study. Results to Date (Table 1) A total of sixteen cougars were collared (includes 1 recollar) over the course of three years. Capture 1998-99 Capture conditions during the winter of 1998/99 were less than ideal. Good snowfalls followed by mild wet weather and rain in the latter part of February made for a very short season. The last good snowfall for trailing occurred during the first few days of March 1999. Five cougars (3F; 2M) were collared during the 1998/99 field season. Four cougars were collared during December 1998 and one during March 1999. A cougar hunter in Trout 5 Cr. northwest of Bonners Ferry, Idaho killed the only cougar that was collared on the Creston side on February 15, 1999. The cougars appeared to be concentrated on whitetailed deer winter ranges and to a lesser extent mule deer and elk winter ranges. Capture 1999-00 Capture conditions during the winter of 1999-00 were very good. Cool temperatures and moderate snow depths and frequent snowfalls allowed for good tracking. Snow conditions started to deteriorate by the end of February. Six cougars (4F;2M) were collared during the 1999/00 field season. One cougar was collared in December 1999, four in January, and one in February 2000. A young female was collared west of Creston, a family group (female with 3 older kittens) were collared in the Pend d’Oreille, and a mature female was collared east of Nelson. Capture 2000-01 Capture conditions during the winter of 2000-01 were generally good. A low snowpack resulted in the ungulates being relatively dispersed however tracking was generally good. Again conditions had deteriorated by the end of February. Six cougars (3F;3M) were collared during the 2000/01 field season. One young female cougar that had dropped her collar was recollared in November 2000. Four cougars were collared in January 2001, one east of Nelson, two in the Pend d’Oreille, and one west of Creston. One cougar was collared west of Creston in March 2001. Table 1. 1999-2001 South Salmo Cougar Capture Summary Capture Location 1998-99 1999-00 2000-01 Cougar Cougar Cougar Captures Captures Captures Creston 1 1 3 Pend d’Oreille 1 4 2 South Salmo 2 0 0 Kootenay Lake 0 1 1 Salmo River 1 0 0 Cougars were treed 51 times during the course of three capture seasons (20 on the Creston side, 29 on the Salmo side, and 2 on the south shore of the West Arm of Kootenay Lake). Only 2 cougars were treed on the Creston side during the first year of the study which was representative of the low cougar population that exists there at that time. Cougar numbers appear to be higher on the east side of the Kootenay River outside the study area (Dave Basaraba pers. comm.). Of the 35 cougars that were treed and not collared: • eleven were not in a safe position for immobilization (examples include; cougars being too high to immobilize, darkness) • two cougars took cover in a cave 6 • • • • • • • two came out of the tree and swam across the Pend d’Oreille River eleven were already collared two were treed in Idaho three were kittens that were too young to be collared one died from an adverse affect of the drug two were not immobilized due to capture equipment malfunction one tom was killed by a houndsmen when the cougar attacked one of his hounds Some of the treed cougars that were not collared for various reasons were retreed and collared at a later date. Local cougar hunters treed the majority of the collared cougars at least once subsequent to collaring. Radio Telemetry We have obtained a total of 1313 radio telemetry locations from 16 individual animals radio collared between December 1998 and March 2001(Figure 2). Data sources include both CBFWCP telemetry locations and WSU graduate student telemetry locations. Movement of the radio-collared cougars during the winter was limited to low elevation mule deer winter range in the Stagleap/Lost Creek area, white-tailed deer winter range in the Rosebud Lake/Salmo River/Pend d’Oreille area. Along the south shore of the West Arm of Kootenay Lake in the north end of the study area, movement was limited to white-tailed deer winter range. Winter movements on the east side of the study area were on white-tailed and mule deer winter range in the Dodge Creek area north to Midge Creek. Summer movements were highly variable with respect to distance traveled and elevation gain. The majority of cougars spent most of their time at low to mid elevations with brief movements into the higher elevations. Cougar, Caribou, and Mule Deer Interactions Because the majority of collared cougars remained at relatively low elevations with only brief movements to higher elevations during the summer (Figure 3), there was limited interaction with caribou. Preliminary analysis of the radio collared cougars indicate that only 2 (1F,1M) of the 16 collared cougars exhibited seasonal overlap with caribou and this overlap occurred during only during the summer. In 1999 there were two collared caribou mortalities and possibly a third that was attributed to an individual collared cougar and no confirmed caribou mortalities attributed to cougars in 2000 or 2001(Jon Almack pers. comm.). From 1995 to March 2000 twenty-nine radio collared caribou mortalities have been recorded. Seven of those were attributed to cougars (Almack 2000). There was considerably more overlap with mule deer particularly on the Creston side of the study area where the overlap was year round. On the Salmo side of the study area, there is overlap during early spring through early winter. 7 IDAHO WASHINGTON 30 0 30 km Figure 2. South Selkirk Cougar Telemetry Locations 8 30 0 30 km Figure 3. Cougar, Mule Deer and Caribou Distribution 9 Home Range Mean annual home ranges were larger for resident males than for resident females. Home range size varied widely among individual cougars (Table 2). The average size of 7 resident female annual home ranges was 642 km2 and ranged from 126 to 1075 km2. The average size of 5 resident males was 744 km2 and ranged from 280 to 1231 km2. Table 2. Annual home range size (km2) of radio-collared cougars in the South Salmo River Study Area, 1998-2001. Sex Average Annual Number of Cougars Range (km2) 2 Home Range (km ) F 642 7 126 - 1075 M 744 5 280 - 1231 Annual home ranges for individual females overlapped extensively and in some cases completely during the winter. There was no overlap in the annual home ranges among males noted but there was overlap of individual males with several female home ranges. Winter home ranges for both sexes were restricted to relatively small, low elevation white-tailed deer winter ranges and to a lesser extent mule deer winter ranges. Seasonal shifts in home ranges were observed for the majority of both female and male cougars. The timing of their seasonal movement corresponded to the movement of both whitetailed and mule deer off their winter ranges. Dispersal Dispersal of juveniles was evident from radio locations of 3 females and 2 males. A cougar hunter killed one female approximately 198 km from her natal area. Two sibling males and an unrelated female traveled from their natal area in the Pend d’Oreille to the Creston side of the study area a distance of roughly 60 km. A female traveled from her natal area in the Pend d’Oreille to an area southeast of Priest Lake, Idaho, a distance of approximately 90 km. Only two juvenile females remained within their natal areas. Mortality A total of eight mortalities were recorded to date; three (2M,1F) legally kill by cougar hunters, one male killed as it was identified as killing two caribou, one male died from internal injuries from killing calf bull elk, one female died from complications from the Telazol, one male died from starvation, and one female of unknown cause. Five cougars dropped their collars; four rot-off strips rotted through (the rot-off strips were cut on three 10 20 0 20 km Figure 4. Cougar Harvest Data (1977 - 99) for M. U. 4-07 and 4-08 11 of the collars because the animals were still growing) and one slipped its collar at a kill site. Recorded cougar mortality, from MWLAP harvest data (Warkentin 2000) for the period 1977 to 1999 are shown in Figure 4 for Management Units 4-07 and 4-08. Of the 140 mortalities in the 22 years, 78 (56%) were males, 60 (48%) were females, and 2 (1%) were unclassified. These figures represent cougars that were killed by hunters, animal control, illegal kills and animals that were picked up (found dead). Reproduction Aerial and ground telemetry was used in an attempt to confirm reproduction. It was noted that during early July 2001 female cougar 7231 was remaining in the same location for at least two weeks. Through ground telemetry we were able to pinpoint her location and we were able to find her den site. Two male kittens approximately five to six weeks old were found in the den. Further aerial telemetry the following day revealed that she moved her kittens approximately 3 km from the original den site. This female at the time of collaring in December 1999 had three (2M,1F) older kittens that were also collared and had dispersed by the spring of 2000. Kill Site Investigation Fifteen kill site investigations from radio-collared cougars were made during the course of the study to date (Table 2). Kill sites were opportunistically located using both aerial and ground radio telemetry. When collared cougars were stationary for two or more days it was assumed that the cougar was on a kill. If practical the area was investigated for a kill. Fresh snow over tracks limited the investigation of kill sites during the winter. Table 3. Summary of Kill Site Investigations Species Male Female White-tailed 0 2 Deer Mule Deer 0 1 Elk 2 (spikes) 0 Caribou 0 2 Fawn/Calf 5 Unknown 3 0 0 0 0 0 0 Public Relations The Discovery Channel came in December 1998 to film the project for their Animal Tracks program that was aired in March 1999. Freelance writer/photographer Matt Jackson wrote articles on the project for the Canadian Wildlife and Wildlife Conservation magazines. Jeff Turner, a filmmaker for the BBC has expressed interest in the study for filming cougar behavior in the wild for a BBC documentary on cougars. 12 Photographic Record A library of project slides has been started for the cougar project and will be housed in the Columbia Basin Fish & Wildlife Compensation Program office in Nelson. Proposed Activities for 2001/02 Fiscal 1) Attempt to recollar a female with two kittens that dropped her collar this past summer. Opportunistically collar individual cougars in the South Salmo River area as these cougars have the highest potential to impact the South Selkirk Caribou population. 2) Maintain telemetry flights of radio-collared cougars in conjunction with radiocollared mule deer to determine home range size, habitat selection, and survivorship. 3) Obtain snow-trailing data from radio-collared cougars to determine habitat use. 4) Kill site investigations to determine seasonal prey selection 5) Attempt to monitor female reproductive status. 6) Attempt to determine the density of cougars in the SSM through experimenting with the use of “hair grabbers” for DNA analysis 7) Assemble GIS databases (Forest Cover, Trim, TEM) and obtain data on seasonal distribution of ungulates within the study area. Recommendations Management recommendations for cougars in the SSM should be incorporated in the final report at the end of 2002/03 fiscal. 13 References Almack, J.A. 2000. Mountain caribou recovery in the southern Selkirk mountains of Washington, Idaho, and British Columbia. Prog. Report, October 1998 – March 2000. Washington Dept. of Fish and Wildlife, Olympia. 31pp. Gwilliam, J. 1996. West Kootenay mule deer ecology and habitat use in the South Salmo River Area. Working plan. 10pp. Hemker, T.P. 1984. Cougars in southern Utah. Journal of Wildlife Management. 48(4):1275-1284 Hornocker, M.G. 1969. Winter territoriality in mountain lions. Journal of Wildlife Management. 33.457-464. Hornocker, M.G. 1970. An analysis of mountain lion predation upon mule deer and elk in the Idaho Primitive Area. Wildlife Monograph 21. 39pp. Johnson, D.H. 1980. The comparison of usage and availability measurements for evaluating resource preference. Ecology 61(1): 65-71. Katnik, D.D. 1998. Effects of habitat on cougar predation of endangered mountain caribou. Ph.D. Thesis Proposal, Washington State University. 31pp. Logan, K.A. 1994. Characteristics of a hunted mountain lion population in Wyoming. Journal of Wildlife Management 50(4):648-654 Rausch, R.A. and A.M. Pearson. 1972. Notes on the wolverine in Alaska and the Yukon territory. Journal of Wildlife Management 36:249-268. Ross, I.P. and M.G. Jalkotzy. 1992. Characteristics of a hunted population of cougars in southwestern Alberta. Journal of Wildlife Management 56(3):417-426 Seidensticker, H.G., IV, M.G. Hornocker, W.V. Wiles, and J.P. Messick. Mountain lion Social organization in the Idaho Primitive Area. Wildlife Monograph 35. 60pp. Warkentin, B. 2000. 4-07 and 4-08 cougar harvest data. Ministry of Water Land and Air Protection. Woods, G. 1998. South Selkirk cougar ecology. Ministry of Water Land and Air Protection. Project Work Plan. 10pp. 14 Appendix 1 – Houndsmen Protocol Once a cougar has been treed and the immobilization personnel has arrived all dogs must be controlled by their handlers. All dog leashes must dog chew resistant by having chain or cable attached to the lower section of the leash. This will ensure that no loose dogs are able to disturb a immobilized animal. Depending on situation the personnel immobilizing the cougar may or may not want the cougar hounds present at the time of immobilization, depending on how well the animal is treed. Once the call has been made to remove the hounds the handlers will be responsible for securing the dogs at least 100m from the captured site, to reduce stress to the cougar. Once the cougar has been collared and is recovering from the immobilization the houndsmen may leave with their dogs to reduce stress even farther. Firearms during captures are permitted with strict judgment for it's use, either for euthanasia for a dog or cougar depending on the situation. But no cougar hunting will be permitted during any capture effort. Once the cougar has been immobilized houndsmen may be asked to aid in the handling of the animal such as weighing or recording data. During this time caution will be taken to minimize stress to the animal so it's best to keep as quiet as possible during this procedure. 15 Appendix 2 – Immobilization Protocol When a cougar has been treed a decision has to be made whether to immobilize the cougar, tree it again, or walk away. Factors to Consider for Immobilization 1) How high up in the tree is the cougar - Maximum height ~ 10m 2) Can you get a clear shot with the dart 3) Where will the cougar land when it falls out of the tree Situations to Avoid 1) Steep slopes which will increase the chance of cougars being injured when they fall. 2) Objects such as stumps, wood debris, and windfalls. If possible remove any debris that the cougar may land on if it falls out of the tree. 3) Immobilizing near highways, streams, rivers, and reservoirs to minimize the risks to the animal when it is coming out of the drug. If animals are immobilized in these situations then the animal should be moved to a safe location to recover from immobilization. Once the animal is immobilized it may be necessary to climb the tree to lower the animal by a rope. Extreme care should be taken not to climb directly under the cougar in case it falls out as you are climbing. When the cougar is on the ground it should be placed on the “blue foamy” and blind folded. Remove the magnet from the collar before putting the collar on the cougar. Record the frequency. With the biopsy punch make one hole in each ear. Put samples in sample bag and label. Place one rototag eartag in each ear in holes made by the biopsy punch. Record tag number and colour. Estimate age and weight of the cougar. Fill out as much of the capture form as possible. Stay with the cougar until it comes out of the drug and can not be approached any more. 16 Appendix 3 - Capture Data Form SELKIRK COUGAR CAPTURE DATA SHEET Date(d/m/y) Location; Personnel Weight Est Capture Method MARKING First Capture UTM N Sex M F AGE Actual Wt Tag# Tag# Collar Freq Other Markings Collar Rot-off Type Type Type Colour Colour Recapture E NAD Scale Type Location Location Colour Collar Length MEASUREMENTS AND SAMPLES Total Length Neck Girth Chest Girth Head Diameter Anomolies Parasites Tooth Removed DNA Sample Foot Measurements Hind Foot Length Pad Length Pad Width Type IMMOBILIZATION AND MONITORING Type of delivery; Drug Type Injection time Begin handling Head up Conc; Sedation End handling Standing up Fully recovered Tooth Wear Nipple Measurement Teste Length Scars Present Comments: 17 Front Foot Length Pad Length Pad Width Appendix 4 – Examples of Individual Cougar Home Ranges 18 20 0 Appendix 4.1 Home Range of Cougar 6431 19 20 km 20 0 20 km Appendix 4.2 Home Range of Cougar 6531 20