globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.02.017
论文题名:
Paleobiology of sabretooth cat Smilodon populator in the Pampean Region (Buenos Aires Province, Argentina) around the Last Glacial Maximum: Insights from carbon and nitrogen stable isotopes in bone collagen
作者: Bocherens H.; Cotte M.; Bonini R.; Scian D.; Straccia P.; Soibelzon L.; Prevosti F.J.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 449
起始页码: 463
结束页码: 474
语种: 英语
英文关键词: Carbon-13 ; Collagen ; Last Glacial Maximum ; Nitrogen-15 ; Pampas ; Smilodon
英文摘要: The sabretooth cat Smilodon populator was the largest felid in South America. It appears in the fossil record in the Early Pleistocene, as an immigrant from North America, and becomes extinct around the Pleistocene-Holocene boundary. The carbon and nitrogen stable isotopic values of collagen were measured for skeletal remains from Smilodon specimens ranging in age from 25 to 10 kyr BP, for the first time in the Pampas region of Argentina. By comparison with similar values obtained on co-eval predators such as Protocyon (large canid) and Panthera onca (jaguar) and a range of potential prey, such as giant ground sloths, glyptodontids, Macrauchenia, Toxodon, equids, cervids, and rodents, it could be established that Smilodon consumed essentially large prey from open landscape, such as Macrauchenia and giant ground sloths during the last 15,000 years of the Late Pleistocene in the Pampa region. It was possibly competing with the large canid Protocyon but the jaguar was apparently feeding on smaller size prey. A more humid climate at the beginning of the Holocene might have been unfavorable to this large predator and could have contributed to its extinction. These results also provide an important insight to understand the ecological processes involved in the Great American Biotic Interchange. © 2016 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68491
Appears in Collections:过去全球变化的重建

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作者单位: Department of Geosciences, Biogeology, University of Tübingen, Hölderlinstrasse 12, Tübingen, Germany; Senckenberg Research Center for Human Evolution and Paleoenvironment, University of Tübingene, Hölderlinstrass 12, Tübingen, Germany; División Paleontología Vertebrados, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n, La Plata, Buenos Aires, Argentina; Museo Municipal de Ciencias Naturales Pachamama, Santa Clara del Mar, Argentina; Universidad Nacional de Mar del Plata, Argentina; Div. Paleontología Vertebrados, Museo de La Plata, Paseo del Bosque, La Plata, Argentina; Centro Regional de Investigaciones Cientificas y Transferencia Tecnologica de Anillaco, CRILAR-CONICET, Entre Ríos y Mendoza s/n, Anillaco, La Rioja, Argentina

Recommended Citation:
Bocherens H.,Cotte M.,Bonini R.,et al. Paleobiology of sabretooth cat Smilodon populator in the Pampean Region (Buenos Aires Province, Argentina) around the Last Glacial Maximum: Insights from carbon and nitrogen stable isotopes in bone collagen[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,449
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