globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2016.06.010
Scopus记录号: 2-s2.0-84977593976
论文题名:
Tracking the origins and diet of an endemic island canid (Urocyon littoralis) across 7300 years of human cultural and environmental change
作者: Hofman C.A.; Rick T.C.; Maldonado J.E.; Collins P.W.; Erlandson J.M.; Fleischer R.C.; Smith C.; Sillett T.S.; Ralls K.; Teeter W.; Vellanoweth R.L.; Newsome S.D.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 146
起始页码: 147
结束页码: 160
语种: 英语
英文关键词: AMS dating ; Anthropocene ; California Channel Islands ; Canine surrogacy approach ; Island fox ; Isotope ecology
Scopus关键词: Carbon ; Climate change ; Ecology ; Isotopes ; Land use ; Mammals ; Mass spectrometry ; Particle accelerator accessories ; Accelerator mass spectrometry ; Anthropocene ; Anthropogenic resources ; California ; Canine surrogacy approach ; Carbon and nitrogen isotopes ; Island fox ; Stable-isotope analysis ; Landforms ; accelerator mass spectrometry ; Anthropocene ; bone ; canid ; chronology ; climate variation ; collagen ; cultural change ; diet ; environmental change ; foraging behavior ; future prospect ; historical record ; Holocene ; human activity ; isotopic analysis ; paleoecology ; radiocarbon dating ; ranching ; surrogate method ; California ; Channel Islands [California] ; San Nicolas Island ; United States ; Canidae ; Canis familiaris ; Urocyon ; Urocyon cinereoargenteus ; Urocyon littoralis
英文摘要: Understanding how human activities have influenced the foraging ecology of wildlife is important as our planet faces ongoing and impending habitat and climatic change. We review the canine surrogacy approach (CSA)-a tool for comparing human, dog, and other canid diets in the past-and apply CSA to investigate possible ancient human resource provisioning in an endangered canid, the California Channel Islands fox (Urocyon littoralis). We conducted stable isotope analysis of bone collagen samples from ancient and modern island foxes (n = 214) and mainland gray foxes (Urocyon cinereoargenteus, n = 24). We compare these data to isotope values of ancient humans and dogs, and synthesize 29 Accelerator Mass Spectrometry (AMS) radiocarbon dates that fine-tune the chronology of island foxes. AMS dates confirm that island foxes likely arrived during the early Holocene (>7300 cal BP) on the northern islands in the archipelago and during the middle Holocene (>5500 cal BP) on the southern islands. We found no evidence that island foxes were consistently using anthropogenic resources (e.g., food obtained by scavenging around human habitation sites or direct provisioning by Native Americans), except for a few individuals on San Nicolas Island and possibly on San Clemente and Santa Rosa islands. Decreases in U. littoralis carbon and nitrogen isotope values between prehistoric times and the 19th century on San Nicolas Island suggest that changes in human land use from Native American hunter-gatherer occupations to historical ranching had a strong influence on fox diet. Island foxes exhibit considerable dietary variation through time and between islands and have adapted to a wide variety of climatic and cultural changes over the last 7300 years. This generalist foraging strategy suggests that endemic island foxes may be resilient to future changes in resource availability. © 2016 Elsevier Ltd.
资助项目: We thank our many collaborators on the Channel Islands and beyond for help in understanding island fox-human relationships. In particular, we thank Christie Boser, Todd Braje, Tim Coonan, Kate Faulkner, Chris Funk, Russell Galipeau, Ann Huston, Julie King, Leslie Reeder-Myers, Kelly Minas, Scott Morrison, Sabrina Shirazi, and Catherine West. Funds for this project were provided by a Smithsonian Institution Grand Challenges Level 2 grant (Rick, Chesser, Fleischer, Hofman, Maldonado, Ralls, and Sillett) and a National Museum of Natural History Small Grant (Rick, Hofman, and Maldonado), as well as a National Science Foundation Dissertation Improvement Grant (Shackel and Hofman, BCS-1338773). We acknowledge the support of our home institutions and thank reviewers and the editorial staff of Quaternary Science Reviews.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59526
Appears in Collections:过去全球变化的重建

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作者单位: Department of Anthropology, University of Oklahoma, Norman, OK, United States; Department of Anthropology, National Museum of Natural History, Smithsonian Institution, Washington, DC, United States; Center for Conservation and Evolutionary Genetics, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, United States; Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC, United States; Department of Vertebrate Zoology, Santa Barbara Museum of Natural History, Santa Barbara, CA, United States; Museum of Natural and Cultural History and Department of Anthropology, University of Oregon, Eugene, OR, United States; Department of Anthropology, University of California-Davis, Davis, CA, United States; Migratory Bird Center, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, United States; Fowler Museum, University of California- Los Angeles, Los Angeles, CA, United States; Department of Anthropology, California State University, Los Angeles, CA, United States; Department of Biology, University of New Mexico, Albuquerque, NM, United States

Recommended Citation:
Hofman C.A.,Rick T.C.,Maldonado J.E.,et al. Tracking the origins and diet of an endemic island canid (Urocyon littoralis) across 7300 years of human cultural and environmental change[J]. Quaternary Science Reviews,2016-01-01,146
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