16_Kitagawa et al_TRIS
Transcription
16_Kitagawa et al_TRIS
P ROM E T H E U S P RE S S /P A LAE ON T OL OG IC AL N E T W ORK F OU ND AT IO N (TERUEL) 2012 Journal of Taphonomy Available online at www.journaltaphonomy.com Kitagawa et al. VOLUME 10 (ISSUE 3-4) Exploring Cave Use and Exploitation Among Cave Bears, Carnivores and Hominins in the Swabian Jura, Germany Keiko Kitagawa*, Petra Krönneck Institut für Naturwissenschaftliche Archäologie, Eberhard-Karls-Universität Tübingen Rümelinstr. 19-24, 72070 Tübingen, Germany Nicholas J. Conard Institut für Ur- und Frühgeschichte und Archäologie des Mittelalters Abteilung Ältere Urgeschichte und Quartärökologie & Senckenberg Center for Human Evolution and Quaternary Ecology, Schloss Hohentübingen Eberhard-Karls-Universität Tübingen, 72070 Tübingen, Germany Susanne C. Münzel Institut für Naturwissenschaftliche Archäologie, Eberhard-Karls-Universität Tübingen Rümelinstr. 19-24, 72070 Tübingen, Germany Journal of Taphonomy 10 (3-4) (2012), 439-461. Manuscript received 15 March 2012, revised manuscript accepted 15 November 2012. This study offers an overview of carnivore remains from archaeological contexts and provides evidence of interaction between carnivores and hominins in the Swabian Jura during the Middle and Upper Paleolithic (~50,000-27,000 uncal B.P.). First, we present data on the carnivores in the faunal assemblages from the area, followed by a general comparison of anthropogenic and carnivore modifications on faunal remains. Further, we describe some archaeological findings that demonstrate unique ways in which humans interacted with carnivores in the early and middle Upper Paleolithic. This study documents the pattern of carnivore representation in the zooarchaeological assemblages on a regional scale. The analyses of faunal assemblages across five cave sites in the two valleys of the Swabian Jura indicate intensified use of caves by humans, which corresponds to a decreased presence of large and medium sized carnivores at the beginning of the Upper Paleolithic in addition to the use of carnivore figures in the cultural repertoire of the Aurignacian and the increased exploitation of carnivores in the Gravettian period. Keywords: MIDDLE PALEOLITHIC, AURIGNACIAN, GRAVETTIAN, CAVE USE, CAVE BEARS, CARNIVORES, SWABIAN JURA Article JTa145. JTa124. All rights reserved. *E-mail: *E-mail:[email protected] [email protected] 439 Exploring Cave Use and Exploitation in the Swabian Jura Introduction Signatures of carnivores prevail in archaeological sites throughout the Paleolithic period. While little evidence of direct interaction between hominins and carnivores is documented in the archaeological record until the middle of Upper Paleolithic (with few exceptions: Blasco et al., 2010; Münzel & Conard, 2004a), non-human predators played a crucial role in the evolution of hominins as they began to exploit large game for food and entered an ecological guild of medium and large carnivores. This change in the adaptation of hominins triggered debates on hunting and scavenging as well as the interaction of carnivores and hominins during the Lower Paleolithic at eastern African sites (Blumenschine, 1986; Blumenschine & Pobiner, 2006; Bunn & Kroll, 1986; Dominguez-Rodrigo & Barba, 2006) and led to increased interest in understanding the taphonomic effects of carnivores to extrapolate archaeological signals from faunal assemblages (Brain, 1981; Cleghorn & Marean, 2007; Selvaggio & Wilder, 2001). Some researchers focused on the evolution of medium and large carnivores to infer the nature of competition and coexistence among different species, which also has implications for studying the past adaptation of early Homo (Van Valkenbergh, 2001; Lewis & Werdelin, 2007). The record of past animal remains, especially ungulates, provides a direct evidence of competition for resources, which shaped the adaptation of hominins and the nature of coexistence in various ecological settings. Hominins and large carnivores also occupied a similar ecological niche in that they both used caves as natural shelters (e.g. Stiner, 1994). Caves provide protection for carnivores to consume prey for avoiding competition and rear young, and bears occupy sheltered area during the period of hibernation. Further, the majority of archaeological records derives from the context of caves or rockshelters due to better preservation of organic remains. We infer that carnivores and hominins had similar need for resources and space ever since hominins began to regularly exploit animals for resources and as hominins dispersed in areas where they encountered new faunal communities and adapted to different ecological systems (for a summary, see Stiner, 2002). That said, understanding how caves were occupied and utilized by hominins and carnivores is often based on isolated cases of single sites, and with some exceptions, not many studies have focused on the regional pattern of cave use by carnivores and hominins. Mussi (2001) and Straus (1982) compiled data on a larger scale, namely in parts of Italy and Cantabria, Spain to study patterns of carnivore representation in assemblages spatially and temporally. Most interactions cannot be tracked using fossil records alone, but studying cave use and exploitation of prey by carnivores and hominins beyond one or two sites sheds light on the ecological relationship and trends that speak to differences in the adaptation of archaic and modern humans. This study consists of faunal analyses from caves in the Swabian Jura during the Middle and Upper Paleolithic. We sought to observe regional patterns in the changes of cave use by considering carnivore abundances, bone modification, exploitation of carnivores by humans and lastly, the cultural significance as symbols during the Upper Paleolithic. 440 Kitagawa et al. Swabian Jura: Geography, Sites and Paleoenvironment The geographical area of Swabian Jura is the largest karst system in southwestern Germany (Figure 1). Several caves with Paleolithic deposits are mainly found in two valleys of the Swabian Jura, the Ach and Lone. Sites shown on the map are situated in these valleys that cut through a dry upland plateau, which formed during the Upper Jurassic period and reaches as high as 1000 m asl, dipping slightly towards the southeast. Most of the archaeological sites are found at an elevation of approximately 560-585 m asl (Abel et al., 2002). The Ach Valley formed as the Danube River, which runs 5-10 km south in the present, meandered into the plateau before the Riss Glacial Stage, and the Lone Valley formed as a result of a meandering tributary, which drained into the Danube River. Local flints (with sources usually within 5-10 km distance from all caves) were commonly used for the production of lithic artifacts (Burkert & Floss, 2006). Ach and Lone Valleys are similar in their geological setting, but the Ach Valley is deeply incised compared to the Lone Valley while the latter is dominated by open grassland at a lower elevation, a factor that may explain the abundance of horses in the Paleolithic period. Further, the Lone River is fed by the karst aquifer with no permanent water source whereas the Ach River flows year round in the Ach Valley today. Sites in the Lone Valley, Hohlenstein -Stadel, Vogelherd and Bockstein and in the Ach Valley, Hohle Fels and Geißenklösterle are considered in this study. These sites Figure 1. Map of the Swabian Jura with major sites included in the study: Hohle Fels and Geißenklösterle in the Ach valley; Bockstein, Vogelherd and Hohlenstein-Stadel in the Lone valley. 441 Exploring Cave Use and Exploitation in the Swabian Jura have produced one of the richest archaeological records of the Paleolithic in Central Europe and revealed an early emergence of the Aurignacian culture with an array of innovation and new forms of symbolic expression including ivory figurines, music and ornaments (Conard, 2009; Conard & Malina, 2006; Conard et al., 2009; Kölbl & Conard, 2003). Große Grotte, Kogelstein, Sirgenstein and Brillenhöhle were not included in this study as these sites either do not have both Middle and Upper Paleolithic sequences or the material has not been studied in detail. The Middle Paleolithic sequences have not been dated securely with the exception of a deposit from Geißenklösterle, which dated to 43,000 BP using TL and ESR dating in the uppermost level of the Middle Paleolithic sequence (Richter et al., 2000) as well as some radiocarbon dates whose range suggests a minimum age of 50-45,000 cal BP from the Middle Paleolithic horizons in Hohlenstein-Stadel (Beutelspacher et al., 2011). The Aurignacian appears to begin immediately after the end of the Middle Paleolithic around 43,000 to 41,000 cal BP (Conard & Bolus, 2003, 2008; Higham et al., 2012). The deposits in Bockstein, Hohle Fels and Geißenklösterle also contain Gravettian sequences, which span the period of 30-27,000 BP (Moreau, 2009). Prehistorians and geologists began archaeological investigations in this area starting in the mid 19th century and some of the analyzed faunal assemblages derive from older excavations that occurred extensively from the 1930s, namely the three sites from the Lone Valley. In contrast, the majority of the faunal material from Hohle Fels and Geißenklösterle was excavated using more comprehensive recovery techniques starting in the 1970s (Hahn, 1988). Despite differences in the excavation method, all five sites have cultural sequences that run from the Middle Paleolithic to Aurignacian and three sites, Hohle Fels, Geißenklösterle and Bockstein, also contain Gravettian sequences (another transitional layer between the Aurignacian and the Gravettian at Hohle Fels exists, but it was not considered in the study for adequate comparison). Geological layers as well as separate deposits (in the case of Bockstein) from the Middle Paleolithic, Aurignacian and the Gravettian are aggregated to provide adequate sample sizes. Paleoenvironmental records in the Swabian Jura allow us a glimpse into the past climatic shifts, which are particularly relevant in interpreting the abundance of fauna with preferred habitats. Previous work on archaeobotanical remains from archaeological contexts such as Bockstein indicates steppic vegetation with some woodland in the Middle Paleolithic and cooler climate towards the beginning of the Last Glacial Maximum (LGM) (Filzer, 1969). In addition, the nearest pollen core from the alpine foreland in Germany, Füramoos, reveals mild climate from roughly 51,000-40,000 BP followed by a hiatus, which lasted until the end of the glacial period due to heavy erosion (Müller et al., 2003). Some work on mammalian macroand microfauna as well as birds points to a steppe landscape with woodland area that persisted from the Middle Paleolithic to the Aurignacian period (Krönneck, 2012, in press; Ziegler, in press). Microfaunal data from Geißenklösterle indicate slightly warmer conditions during the Aurignacian with a decrease in tundra and increase in wooded area (Ziegler, in press). Finally, the Gravettian period is characterized by a steppe environment with a decrease in the wooded areas (Conard et al., 2006; Krönneck, 2012). 442 Kitagawa et al. Geological and micromorphological analyses from sites of Geißenklösterle and Hohle Fels offer a different reconstruction of the environment with some intersite variability (Conard et al., 2006; Goldberg and Conard, in press; Miller, 2009). In Geißenklösterle, micromorphological samples taken from the transition between the Middle Paleolithic and the Aurignacian are marked by an episode of erosion, indicating an abrupt shift from a mild condition with warm and wet climate to a colder and drier climate. While the general trend is comparable at Hohle Fels, the change appears to be gradual with mild climate lasting through to the beginning of the Aurignacian, which is then followed by a cooler climate, a climatic shift that occurred presumably after the arrival of modern humans. In the Gravettian, there is a clear indication of colder and drier climate leading towards the beginning of the LGM. In all, the paleoenvironmental record shows that the steppe environment mostly prevailed in the Swabian Jura with some woodland and riverine forests. To date, an abrupt shift in the climate between the Middle Paleolithic and the Aurignacian is documented only by the micromorphological study of Geißenklösterle, while other lines of evidence mostly document relatively stable conditions during the transitional period, followed by some climatic fluctuations within the Aurignacian period. From the end of the Aurignacian, the cooler climate prevailed and persisted throughout the Gravettian period until ~27,000 uncal. B.P. Previous Work on Fauna of the Swabian Jura Zooarchaeological research of the Swabian Jura largely focused on two themes: the subsistence pattern of Neanderthals and modern humans (Krönneck et al., 2004; Münzel, in press; Münzel & Conard, 2004a; Niven, 2006) and the paleoecology of cave bears and their possible interactions with hominins (Münzel & Conard, 2004b; Münzel et al., 2011). Horses (Equus ferus) and reindeer (Rangifer tarandus) were extensively exploited in the Swabian Jura during the Paleolithic period. Horses were a preferred taxon in the Lone Valley and reindeer remains are more common in the Ach Valley. Bovids are also present across sites, but there is a greater proportion of ibex (Capra ibex) at the sites in the Ach Valley, which probably served as an ideal habitat with high reliefs for these bovids (Münzel, in press). Further, Vogelherd holds one of the richest assemblages of mammoth (Mammuthus primigenius) remains in Central Europe although the degree of its exploitation for subsistence purpose is not clearly demonstrated (Niven, 2006). Across sites, many mammoth remains are found in a form of ivory fragments, which was commonly used as raw material for the production of artifacts (Conard et al., 2006; Niven, 2007). Other ungulates found in the Swabian Jura include woolly rhinoceros (Coelodonta antiquitatis), aurochs/bison (Bos/Bison), giant deer (Megaloceros giganteus), red deer (Cervus elaphus), chamois (Rupicapra rupicapra) and wild boars (Sus scrofa). In some sites such as Vogelherd, repetitive cutmarks and selective transport of body parts point to the significant role of ungulates and proboscideans in humans’ diet during the Aurignacian period (Niven, 2006, 2007). However, the selection of prey by hominins does not largely alter during the Paleolithic. While the archaeological record reveals differences in the intensity and settlement pattern of Neanderthals and early modern humans, the choice of prey remained unchanged (Conard et al., in press). 443 Exploring Cave Use and Exploitation in the Swabian Jura Such continuity in the selection of prey most likely reflects the abundance of respective ungulates that inhabited or migrated through the Swabian Jura, with horses preferring the open land of the Lone Valley and reindeer, which were exploited during the seasons of migration (Müller-Beck, 1988; Niven, 2006). In recent years, some studies explored the possible use of small game by Neanderthals and modern humans (Conard et al., in press; Krönneck, in press; Münzel, in press). While preservational bias against small bodied animals must be investigated in greater detail, preliminary results suggest a gradual increase in the abundance and the diversity of prey including small mammals such as hares, birds and fish from the Middle Paleolithic to the Gravettian period. Such patterns may reflect changing subsistence practices that resulted from increased human population or longer residential times at caves in the Aurignacian period (Conard 2011; Conard et al., 2012), but the pattern of prey choice of the Neanderthals and early modern humans are comparable, documenting no clear shift in the economic behavior of the hominins in the Swabian Jura. Other faunal studies concentrated on cave bears that are most commonly found in the Ach Valley, including at sites discussed here and Große Grotte (Weinstock, 1999) and the sites of Hohlenstein-Stadel and Hohlenstein -Bärenhöhle in the Lone Valley (Lehmann, 1960). Genetic analyses demonstrated the existence of two genetically different cave bears (Ursus spelaeus and Ursus ingressus) with the latter replacing the former around 31,270 ± 325 cal BP and Ursus ingressus becoming extinct around 29 760 ± 530 cal. BP in this part of Central Europe (Münzel et al., 2011). Stable isotopic analyses confirmed their herbivorous diets showing distinct values of d15N and d13C from coeval carnivorous brown bears (Bocherens et al., 1994; Münzel et al., 2011). Co-occurrence of cave bear remains and hominin occupations has allowed researchers to explore the nature of interaction among humans and cave bears and propose possible cause(s) for the extinction of cave bears during the Gravettian period (Münzel & Conard, 2004b; Stiller et al., 2010). Data and Results In addition to the faunal analysis of Bockstein, Vogelherd and Geißenklösterle, the analysis of material from Hohle Fels and the taphonomic study from HohlensteinStadel are currently in progress. Approximately half of the material from each cultural layer at Hohle Fels has been analyzed by S. Münzel and the previous work by C. Gamble on Hohlenstein-Stadel (1979, 1999) gives us a general understanding of the species’ relative abundance and diversity. All five sites consist of caves of different sizes, which have been occupied during the Middle and early Upper Paleolithic. Further, faunal data from the Gravettian layers of Bockstein, Hohle Fels and Geißenklösterle are reported here. Data in this study consist of species abundance with a focus on carnivores, bone modification by carnivores and humans, as well as anthropogenic modification of carnivore remains. Taxonomic Data Intersite variability characterizes the faunal spectrum of the Swabian Jura. The relative abundances of fauna categorized under ungulate, large carnivores, small carnivores, cave bear and small mammals, notably 444 Kitagawa et al. hares (Table 1-3, Figure 2), show that while some sites are dominated by ungulates, some sites are represented by high concentrations of cave bear. Such contrast points to the difference in the site use by animals throughout the Paleolithic period. Ungulates, horses and reindeer, dominate throughout the occupational sequences of Vogelherd and Bockstein. The assemblage size of Bockstein from the Aurignacian and Gravettian is small in comparison to the Middle Paleolithic, but high %NISP of ungulates and relatively low %NISP of large carnivores points to a continuing trend in the exploitation of prey that were transported and butchered in the caves by hominins. Vogelherd served an ideal site to observe prey movement due to its elevation, allowing for a greater visibility over a spot where two valleys merge (Niven, 2006). When we consider the taxonomic data and the relative abundance of ungulates, these sites appear to have served as locales for transport and processing of animal carcasses with some degree of temporal continuity. Cave bears are taxonomically placed in the order of Carnivora, but have a different ecological niche as other carnivores, because of their herbivorous diet as indicated by the tooth morphology (Kurtén, 1976; Rabeder & Hofreiter, 2004) and isotopic studies (Bocherens et al., 1994). In this study, we include cave bears in the analysis as they directly competed with hominins for the use of shelters. Cave bears dominate the assemblages of Geißenklösterle, Hohle Fels, and Hohlenstein-Stadel. With the exception of Hohlenstein-Stadel, %NISP of cave bear at these sites decreases from the Middle Paleolithic to the Aurignacian period, but cave bear continues to be a dominant taxon throughout the sequences, including the Gravettian period in the Ach Valley. We can conclude that sites were often occupied in the winter season by cave bears and their remains accumulated as they died of natural causes and predation. Further, many examples of fetal remains indicate the active use of the sites as dens, as is especially well documented in Geißenklösterle and Hohle Fels. The abundance of cave bears in association with artifacts suggests that the sites were visited by various animals, which included hominins but with long intervals between the occupations that allowed other animals access to the caves. Factors such as the frequency of visits by animals and conditions of the cave including the size and locality probably played a role in the preference of cave bears to use the caves as shelters for the winter. These favorable conditions for some sites probably remained consistent throughout the Paleolithic period, as the dominance of cave bears at certain sites does not change over different cultural phases. Large and middle sized carnivores include lion (Panthera leo spelaea), hyena (Crocuta crocuta spelaea), wolf (Canis lupus), brown bear (Ursus arctos) as well as lynx (Lynx lynx). They are found in varying abundances across the sites (Table 1-3, Figure 3). A general temporal pattern points to a decrease in the NISP and %NISP of large/middle carnivores and an increase of ungulates, small carnivores and hares, from the Middle Paleolithic to the Gravettian with the exception of Hohlenstein-Stadel. Such a trend signifies the decreased use of caves by carnivores on a regional scale. While a link between the trend and its probable cause, increased human activities, remains tentative, there is an inverse correlation between intensified use of caves in the Upper Paleolithic and decreasing NISP of large/middle carnivores at sites 445 Exploring Cave Use and Exploitation in the Swabian Jura Table 1. NISP of mammalian fauna in the Middle Paleolithic from the five sites of the Swabian Jura. Taxa Panthera leo spelaea Crocuta crocuta spelaea Canis lupus Ursus arctos Vulpes/Alopex Ursus spelaeus Mammuthus primigenius Coelodonta antiquitatis Bos/Bison Equus sp. Megaloceros giganteus Cervus elaphus Rangifer tarandus Capra ibex Lepus sp. others total NISP Geißenklösterle Hohle Fels Hohlenstein-Stadel Bockstein Vogelherd 4 7 19 _ 26 586 3 8 _ 21 7 2 53 20 8 10 1 1 5 3 4 531 _ 2 _ 10 _ 1 7 3 1 _ 80 476 240 _ 161 4066 61 125 156 1557 14 203 102 _ 4 56 7 48 40 1 18 55 59 72 82 678 _ 9 130 2 7 21 2 10 8 2 _ 25 16 57 49 342 7 11 12 _ 2 1 774 569 7301 1229 544 Table 2. NISP of mammalian fauna in the Aurignacian from the five sites of the Swabian Jura. Taxa Panthera leo spelaea Crocuta crocuta spelaea Canis lupus Ursus arctos Vulpes/Alopex Ursus spelaeus Mammuthus primigenius Coelodonta antiquitatis Bos/Bison Equus sp. Cervus elaphus Rangifer tarandus Capra ibex Rupicapra rupicapra Lepus sp. others total NISP Geißenklösterle Hohle Fels Hohlenstein-Stadel Bockstein Vogelherd 1 13 91 9 5 25 3 34 1018 21 4 _ 126 9 226 27 1 52 2 1562 15 44 157 _ 97 1935 3 14 _ 50 4 82 _ _ 22 5 2428 6 5 _ 6 28 6 _ 8 72 1 32 _ _ 8 1 173 4 17 38 2 20 120 1127 124 61 1423 19 1633 _ 2 27 14 4631 159 2972 220 62 1 483 10 493 104 35 209 11 4864 446 Kitagawa et al. Table 3. NISP of mammalian fauna in the Gravettian from the three sites of the Swabian Jura. Taxa Panthera leo spelaea Crocuta crocuta spelaea Canis lupus Ursus arctos Vulpes/Alopex Mustela sp. Ursus spelaeus Mammuthus primigenius Coelodonta antiquitatis Equus sp. Cervus elaphus Rangifer tarandus Capra ibex Rupicapra rupicapra Lepus sp. others total NISP Geißenklösterle 1 2 14 1 109 1 1418 51 4 116 3 183 43 7 240 1 2194 (Conard 2011; Conard et al., 2006, 2012). Interestingly, this trend is not observed for cave bears, as NISP decreases but the % NISP remains consistent over the Middle Paleolithic to the Gravettian period. Among the large and middle sized carnivores in the Middle Paleolithic, the most common species is hyenas, followed by wolves (Figure 3). Besides the sites discussed in text, the site of Kogelstein in the Ach Valley, now a collapsed cave, has yielded evidence of denning by hyenas intermittent with hominin occupation (Böttcher et al., 2000). Among the sites, the overall abundance of carnivores indicates that there is a decrease in the abundance of hyenas during Aurignacian period, while wolves become the most abundant predator, a trend that continues to the Gravettian period. We tentatively propose that the local population of hyenas decreased in abundance Hohle Fels 6 2 34 5 73 1 2268 40 1 336 3 309 49 2 474 2 3605 Bockstein 7 9 8 26 3 13 51 4 62 11 6 200 from the Middle Paleolithic to the Aurignacian and Gravettian and the wolf population remained unaltered during these cultural phases. Lion comprises a small proportion of the entire assemblages without any apparent temporal trends or spatial patterns. Large and middle sized felids were often depicted in the figurines from the Aurignacian period as discussed below, but they did not utilize the cave for shelter or to transport prey as intensively as hyenas and wolves in this region. Further, brown bears are also scarce in the assemblages. Even accounting for fragmentary remains and juvenile bones, which may be misidentified as cave bears, few brown bears are identified, showing that brown bears, which coexisted and competed for sheltered space with cave bears, seldom visited the Swabian Jura caves during the Paleolithic period. 447 Exploring Cave Use and Exploitation in the Swabian Jura Figure 2a. Proportion of ungulates, middle/large and small carnivores, cave bears and hares in the Middle Paleolithic. Figure 2b. Proportion of ungulates, middle/large and small carnivores, cave bears and hares in the Aurignacian. Figure 2c. Proportion of ungulates, middle/large and small carnivores, cave bears and hares in the Gravettian. 448 Kitagawa et al. The Middle Paleolithic assemblage in Hohlenstein-Stadel represents one of the richest assemblages with large and middle sized carnivores. Besides cave bears, hyenas, wolves and lions exist in greater proportions than in other deposits. Hints of Neanderthal occupation, including artifacts such as lithics, burnt bones and charcoal (Beck, 1999; Beutelspacher et al., 2011) as well as a femur of Neanderthal (Wetzel, 1961) exist, but scant evidence of anthropogenic modification on fauna suggests sparse use of the cave by the archaic humans. Conversely, abundant carnivore remains attest to greater input of bones by non-human predators that can account for the presence of ungulate remains. Findings of coprolites and regurgitated bones (identified by marks of acid etching, thinning of the edges and polishing of the bone surface) demonstrate an active use of the cave by hyenas in addition to wolves. C. Diedrich (2011) suggests that the predation of cave bears in winter by hyenas and other large carnivores occurred frequently during the late Pleistocene. Cave bears may have been a prey of choice in addition to ungulates during winter when they were dormant or may have been scavenged after their natural deaths, although this idea should be tested with detailed taphonomic studies. Thus, it appears that the assemblage of HohlensteinStadel represents a palimpsest of hominin, cave bear and carnivore activities, which is unique in the Swabian Jura for the high occurrences of large and middle sized carnivores. Small sized carnivores include artic foxes (Alopex lagopus) and red foxes (Vulpes vulpes) as well as occasional findings of wolverine (Gulo gulo), wild cat (Felis silvestris), marten (Martes sp.), badger (Meles meles) and mustelids. Besides foxes, other small carnivores are not represented in large numbers for adequate comparison. In addition to their high occurrences in the Middle Paleolithic at Hohlenstein-Stadel on the basis of NISP, foxes are more commonly represented in the Aurignacian and in the Gravettian. While the number of large and middle sized carnivores decreases, the NISP and %NISP of foxes increase over time. Some researchers suggest an increasing exploitation of foxes for use of pelts starting in the Upper Paleolithic and beyond (Charles, 1997), but to date, few anthropogenically modified remains of small carnivores in the Swabian Jura have been identified. Since small animals usually bear fewer cutmarks and anthropogenic modifications, the increase in the number of foxes over time tentatively points to human involvement in the accumulations of foxes at these sites, but will require further taphonomic assessment. Modification by carnivores and hominins: implication for cave use The modification of the bones by carnivores and hominins reflects the degree in which both agents were involved in the transport and accumulation of animal remains in the caves. The percentage of total specimens for carnivore and anthropogenic modifications is represented in Figure 4 and 5. Carnivore modification includes evidence of gnawing, scoring, pits and punctures. Regurgitated bones and occasional teeth, a common form of modification by wolves or hyenas, were identified at the sites as well. Anthropogenic modification compiled for this study refers to cutmarks, percussion marks, burning, artifacts and organic debitages. We observe an increase in anthropogenic modification and decrease in carnivore modification consistently for the major sites from the Middle Paleolithic to 449 Exploring Cave Use and Exploitation in the Swabian Jura Figure 3a. %NISP of carnivores and non-carnivores in the Middle Paleolithic. Figure 3b. %NISP of carnivores and non-carnivores in the Aurignacian. Figure 3c. %NISP of carnivores and non-carnivores in the Gravettian. 450 Kitagawa et al. the Aurignacian, although Hohlenstein-Stadel will be examined further to assess this pattern. Gravettian assemblages have also produced a large number of human modified remains and relatively few remains modified by carnivores across all three sites. Different forms of anthropogenic modifications, including butchering and processing of animal remains and the use of organic remains for fuel and artifact production, increase significantly from the Middle Paleolithic to the Aurignacian period. To date, few remains have yielded evidence of both anthropogenic and carnivore traces, which points to the primary agent responsible for the transport of the remains into the caves. Few bone fragments at Bockstein from the Middle Paleolithic show cutmarks superimposed by carnivore puncture marks (Krönneck, 2012). Taxonomic representation of fauna in the Swabian Jura differs among sites and shows no regional trend, but the taphonomic study reveals a consistent increase of human traces and a decrease in the input of animal remains by carnivores across sites from the Middle and to the early Upper Paleolithic. In addition to fauna, this trend is also supported by micromorphological studies from Geißenklösterle and Hohle Fels, which show that fragments of coprolites are identified in higher frequencies in the Middle Paleolithic than in the Aurignacian (Miller, 2009). Further, there is an increased artifact density as well as clearer visibility of human activities in the sediments of the deposit when the Middle Paleolithic is compared to the Aurignacian (Conard 2011; Conard et al., 2012). To securely determine whether such trend reflects an actual signal of hominin behavior, we need a better understanding of the duration of Middle Paleolithic occupation by dating the lower cultural sequences and detailed taphonomic analyses. Nonetheless, such increase of human input point to shifts in the use of caves in the region by Neanderthals and modern humans. Direct human exploitation and cultural significance of carnivores Economic Use: Exploitation and Tools Some carnivore bones and teeth bear unique evidence of anthropogenic modifications (Table 4). Evidence of cutmarks, burning and use of carnivores as artifacts remains relatively low during the Middle Paleolithic and the Aurignacian, but increase during the Gravettian period, a trend which is most visible at Hohle Fels. One of the evident examples is a flint projectile embedded in a cave bear vertebra, dating to 28,000 uncal. BP (Münzel & Conard 2004b). This specimen alone cannot speak to the degree in which cave bears were exploited systematically, but it demonstrates that humans preyed on cave bears during hibernation on occasion. Exploitation of cave bear during winter season is also demonstrated by a canine of circa one year old cave bear with cutmarks (Figure 6). Further, evidence of cutmarks documents different steps of processing carcasses including skinning (i.e. cutmarks on skull and metapodials), disarticulation (i.e. cutmarks on head of axis) and defleshing (i.e. cutmarks on pelvis). Anthropogenic modification of cave bear remains is also found at other sites of the Swabian Jura although it is relatively low in number (Table 4, Figure 7a, 7b). S. Münzel argues for a possible link between human predation on cave bears and their extinction, which occurred locally around the end of the Gravettian (Münzel & Conard, 2004b; Münzel et al., 2011). 451 Exploring Cave Use and Exploitation in the Swabian Jura Figure 4. %NISP of specimens with carnivore modification. Figure 5. %NISP of specimens with anthropogenic modification (Note: ^ small burnt material not collected). 452 Kitagawa et al. In addition, we observe uses of lions during the Aurignacian and the Gravettian period. Two forms of exploitation are documented. Retouchers made from lion canines are recovered from the sites of Hohle Fels and Vogelherd (Figure 8). In contrast, cutmarks on shafts of long bones, a possible indication of skinning and defleshing, were recovered from the transitional layer between the Aurignacian and the Gravettian period and from the Gravettian at Hohle Fels (Figure 9). While these examples are few in number, they nonetheless demonstrate cases of exploitation that on the one hand focused on the use of large carnivore remains as raw material for the production of tools, and on the other hand, processing of the remains for meat and/or skin. It also appears that canines from large carnivores (including cave bear) were often used as retouchers in the Aurignacian period in the Swabian Jura (Taute, 1965). Cultural significance of carnivores in the Swabian Jura The cultural significance of carnivores emerged in the Aurignacian and persisted in the Gravettian through different art forms. Ivory played a crucial role as a medium for symbolic expression of the humans in the Swabian Jura during this period (Conard, 2003; Conard et al., 2006, 2009). We recognize abundant depictions of carnivores and at times, depictions of mixed human and carnivore traits. Some of the well-known ivory figures feature lions, which are highly concentrated in Vogelherd (Figure 10), in addition to a bear figurine from Geißenklösterle and a possible hyena or lion from Vogelherd. Further, the largest ivory figurine known as Lionman (Löwenmensch) from the site of Hohlenstein -Stadel has both anthropomorphic features of a man’s body with a lion head (Figure 11) (Wehrberger, 1994). Two additional figurines from Geißenklösterle and Hohle Fels depict a similar therianthropic form with felid features. Here, we postulate that large felids in particular had a crucial role in the iconography and system of beliefs of the Aurignacian culture in the Swabian Jura (Conard, 2003). Aside from the faunal data, ivory figurines from this period demonstrate a unique ‘use’ of carnivores as motifs in the cultural repertoire of the Aurignacian period. During the Gravettian period, carnivore teeth are increasingly utilized for personal ornaments. The production and use of personal ornaments emerge in Europe at the beginning of the early Upper Paleolithic (Vanhaeren & d’Errico, 2006). Common raw material includes ivory, animal teeth and mollusks. In the Swabian Jura, there is a clear preference of ivory during the Aurignacian, although some perforated fox teeth are recovered as well (Floss, 2007). In the Gravettian, we see an increased use of animal teeth as raw material for ornament production (Kölbl & Conard, 2003; Pacher, 2005). This is well documented from the assemblages of the Ach Valley. While ivory beads are still recovered in the Gravettian, perforated teeth increase in number and become more diversified at Hohle Fels and Geißenklösterle. Carnivore teeth include canines and incisors from hyena, wolves, brown bear and cave bears (both deciduous and permanent teeth) (Figure 12). While the exact meaning of these symbolic expressions remains open for interpretation, carnivores played a significant role in the cultures of the Aurignacian and Gravettian peoples. In addition, the way in which carnivores were employed in the cultural repertoire shifts from the use of carnivores as motifs to the use of carnivore remains themselves for ornaments. We can 453 Exploring Cave Use and Exploitation in the Swabian Jura Table 4. Number of anthropogenic modification on carnivore remains across sites over the Middle Paleolithic, Aurignacian and Gravettian (Note: numbers in parentheses indicate tools, organic debitages and tooth pendants out of the total number of modified remains). Geißenklösterle Canis lupus Ursus arctos Vulpes/Alopex Ursus spelaeus Middle Paleolithic 1 1 6 Aurignacian 1 Gravettian 1 2(2) 10 (1) 7 17 (2) indet. Carnivore 1 8 13 26 4 (4) 5 1 (1) Hohle Fels Panthera leo spelaea Crocuta crocuta spelaea Canis lupus 1 4 8 (5) 1 3 (1) 5 (4) 3 (2) 5 40 (3) 164 (14) 6 54 184 Ursus arctos Vulpes/Alopex Ursus spelaeus Hohlenstein-Stadel Vulpes/Alopex 4 (4) Ursus spelaeus Ursus sp. 1 1 6 Bockstein Crocuta crocuta spelaea Ursus spelaeus 1 2 2 (2) 3 2 Vogelherd Panthera leo spelaea 1 (1) 1 (1) Ursus arctos Vulpes/Alopex 1 3 454 Kitagawa et al. thus infer that there was a change in the iconography and cultural system, which was manifested through motifs and artifacts from carnivore remains over the Aurignacian to the Gravettian in the Swabian Jura. Figure 6. Canine of a juvenile cave bear from the Gravettian in Hohle Fels with cut marks. The cut mark on ca. one year old individual indicates hunting during hibernation, since cubs were born during winter time (Photo: H. Jensen ©University of Tübingen). Conclusion The faunal record of the sites in the Ach and Lone Valleys in the Swabian Jura reveals a mixed signal of continuity and change (Münzel & Conard, 2004a). On the one hand, the proportion of species abundance at each site is fairly consistent throughout the Paleolithic sequence even after the arrival of modern humans. The cave bears continued to inhabit the area for shelter until the end of the Gravettian and the diversity of species does not change over time, documenting no evidence of resource intensification or large turnover in the faunal community. On the other hand, there is a clear decrease in the large/middle sized carnivores and an increase of small carnivores over time. Further, the frequency of anthropogenic and carnivore modification demonstrates diminishing role of carnivore in the accumulation of fauna in the caves diachronically, which coincides with the intensified use of the sites by humans, reflecting clear anthropogenic signal in the faunal assemblages (Conard 2011; Conard et al., 2012). This trend is most apparent between the Middle Paleolithic and the Aurignacian period. Many faunal assemblages from the Middle and early Upper Paleolithic are characterized by variability and document no significant shifts in the subsistence practices that reflect unique and ‘modern’ behavior of Upper Paleolithic humans (Adler et al., 2006; Grayson & Delpech, 2003; Hoffecker, 2009; Morin, 2008; Stiner et al., 2000). Differences in the settlement patterns and population density between Neanderthals and modern humans in the Swabian Jura have been argued previously (Conard et al., 2006; Conard, 2011; Conard et al., 2012) and greater presence of humans in caves of the Swabian Jura is supported by these data. Such a hypothesis has been previously suggested by Kurtén (1976) and applied by Grayson and Delpech’s study (2003) with respect to cave bears and their extinction. Thus, studying faunal assemblages from the region has demonstrated likely changes in the demography of archaic and modern humans as well as their ecological relationship with the carnivores and cave bears that occupied the Swabian Jura. 455 Exploring Cave Use and Exploitation in the Swabian Jura Figure 7a. Cut marks on a bear rib from the Aurignacian in Hohlenstein-Stadel (Photo: K. Kitagawa). Figure 7b. Close-up view of the cut marks on a bear rib from the Aurignacian in Hohlenstein-Stadel (Photo: K. Kitagawa). Figure 8. Retoucher made from a canine of Panthera leo spelaea from the Aurignacian in Hohle Fels (Photo: S. Münzel). Figure 9 (right). Tibia of Panthera leo spelaea from the Aurignacian/Gravettian transitional layers in Hohle Fels with cut marks (close-up view) (Photo: S. Münzel). 456 Kitagawa et al. Figure 10. Ivory sculpture of a lion from the Aurignacian in Vogelherd (Photo: Hilde Jensen ©University of Tübingen). Figure 11. Ivory sculpture of the ‘Löwenmensch’, a therianthropic creature with human and lion traits from the Aurignacian in Hohlenstein-Stadel (Photo: Thomas Stephan ©Ulmer Museum). Figure 12. Tooth pendant of a milk canine of a cave bear from the Gravettian in Geißenklösterle (Photo: Hilde Jensen ©University of Tübingen). 457 Exploring Cave Use and Exploitation in the Swabian Jura The Gravettian assemblages indicate increased and diversified exploitation of carnivores by humans. The evidence is well documented in the Ach Valley, where a large number of cave bears were clearly exploited for subsistence and skin. In addition, carnivores had cultural significance as their remains were used for pendants and served as motifs in figurines. Carnivore remains with anthropogenic modifications provide evidence for the changing relationship between carnivores and hominins from that of competition to predation and active exploitation. Although opportunistic in nature, we begin to see that animals such as non-human predators and cave bears became incorporated in the economic practices of Paleolithic people. Carnivore remains in many zooarchaeological assemblages often contribute to our understanding of taphonomic history and the processes affecting site formation. The occurrences of carnivores and cave bears on a regional scale also provide insight into the changing use of caves and population dynamics of animals on the Paleolithic landscape. The sites of the Swabian Jura further demonstrate the diversified exploitation of animals that included the use of carnivores and cave bears for cultural and economic purposes. Faunal assemblages from caves which include carnivores can serve as an opportune case study to explore hominin interaction with animals that go beyond a predator-prey relationship. Acknowledgments We thank all of the organizations that have funded this work including the Deutsche Forschungsgemeinschaft, the Heidelberger Akademie der Wissenschaften, the Universität Tübingen, Heidelberger Cement, the Voith Corporation, Alb-Donau-Kreis, Kreis Heidenheim, the Gesellschaft für Urgeschichte, the Museumsgesellschaft Schelklingen, the Landesamt für Denkmalpflege BadenWürttemberg, the cities of Blaubeuren and Niederstotzingen, and the Förderverein Eiszeitkunst im Lonetal. Further, we thank the organizers of the symposium in Salou and the editors of this volume. 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