globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2017.06.035
Scopus记录号: 2-s2.0-85021751644
论文题名:
Late Pleistocene ecological, environmental and climatic reconstruction based on megafauna stable isotopes from northwestern Chilean Patagonia
作者: González-Guarda E.; Domingo L.; Tornero C.; Pino M.; Hernández Fernández M.; Sevilla P.; Villavicencio N.; Agustí J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 170
起始页码: 188
结束页码: 202
语种: 英语
英文关键词: late Pleistocene ; Megafauna ; Northwestern Patagonia ; Pilauco ; South America ; Stable isotopes
Scopus关键词: Collagen ; Ecology ; Mammals ; Late Pleistocene ; Megafauna ; Patagonia ; Pilauco ; South America ; Stable isotopes ; Isotopes ; Carex ; Equus ; Poaceae ; Xenarthra
英文摘要: Stable isotope analyses have been performed on the bioapatite (δ13C; δ18O) and collagen (δ13C; δ15N) of four late Pleistocene South American megafaunal taxa (Notiomastodon platensis, Equus andium, cf. Hemiauchenia paradoxa and Xenarthra indet.) to evaluate paleoclimatic and paleoenvironmental conditions as well as paleoecological features of this time period. The analyzed megafauna was found at several locations in the northwestern Chilean Patagonia (38°–42°S, 74°–71°W). The bioapatite δ13C values indicated the presence of C3 vegetation ranging from forestal to woodland areas. The collagen δ15N values pointed to temperate and humid ecosystems, and to the consumption of shrubs, trees, grasses and sedges. Mean annual temperatures estimated from bioapatite δ18OPO4 values show a similarity to modern temperatures and suggested that the megafauna under study may have lived during warm stages (interstadials) of the late Pleistocene. When comparing our results with those obtained from other South American regions, we find that the diet of this particular Chilean megafauna appears to have been more influenced by resource availability than by the potential dietary range of the taxa. © 2017 Elsevier Ltd
资助项目: The stable isotope analyses performed at the Service de Spectrométrie de Masse Isotopique du Muséum national Histoire naturelle of Paris, France (SSMIM) were carried out with technical assistance by D. Fiorillo and scientific supervision from M. Balasse (both UMR7209/MNHN).). L. Domingo acknowledges a Spanish Ministerio de Economía y Competitividad Juan de la Cierva postdoctoral fellowship and project CGL 2013-43257-R. This is a contribution of the research group UCM 910607 on Evolution of Cenozoic Mammals and Continental Palaeoenvironments. We are indebted to P.L. Koch (University of California Santa Cruz) for access to his laboratory. We thank D. Andreasen (UCSC) for assistance with the stable isotope analyses at the Stable Isotope Laboratory of the University of California Santa Cruz (USA). C. Tornero is a postdoctoral researcher funded by a Juan de la Cierva-Incorporación (no.: IJCI-2014-19909) grant from the Ministry of Economy and Competitiveness, Spanish Government. M. Pino is a researcher funded by FONDECYT grant 1150738. We are also grateful for the funding provided by CGL 2016–80000 -B (MINECO) y SGR 2014 -901 (Gencat). E. González-Guarda kindly thanks Becas Chile, Programa Formación Capital Humano Avanzado for their financial support. We are also grateful for the funding provided by NSF EAR-1148181 grant that enabled us to analyze and radiocarbon date the following CAMS samples: 175749 ; 175048 ; 175049 ; 175733 ; 175743 and 175744. Special thanks go to Pia Spry-Marqués for helping to improve the grammar of the text. Special thanks go to Sebastián Gática, Giselle Astorga, Alejandra Martel, Mario Manzano, Viviana Lobos and Clàudia Turró.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59146
Appears in Collections:过去全球变化的重建

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作者单位: Instituto de Ciencias de la Tierra, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Departamento de Paleontología, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, Madrid, Spain; Departamento de Geología Sedimentaria y Cambio Medioambiental, Instituto de Geociencias (CSIC, UCM), Madrid, Spain; Earth and Planetary Sciences Department, University of California Santa Cruz, Santa Cruz, CA, United States; Institut Català de Paleoecologia Humana i Evolucio Social (IPHES), C. Marcel-lí Domingo s/n, Campus Sescelades URV (Edifici W3), Tarragona, Spain; ICREA. IPHES, Institut català de Paleoecologia Humana i Evolució Social, Universitat Rovira i Virgili, c/ Marcel·lí Domingo s/n (Edifici W3), Campus Sescelades, Tarragona, Spain; Departamento de Ecología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Chile

Recommended Citation:
González-Guarda E.,Domingo L.,Tornero C.,et al. Late Pleistocene ecological, environmental and climatic reconstruction based on megafauna stable isotopes from northwestern Chilean Patagonia[J]. Quaternary Science Reviews,2017-01-01,170
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