Journal article

Synergistic roles of climate warming and human occupation in Patagonian megafaunal extinctions during the Last Deglaciation

Jessica L Metcalf, Chris Turney, Ross Barnett, Fabiana Martin, Sarah C Bray, Julia T Vilstrup, Ludovic Orlando, Rodolfo Salas-Gismondi, Daniel Loponte, Matias Medina, Mariana De Nigris, Teresa Civalero, Pablo Marcelo Fernandez, Alejandra Gasco, Victor Duran, Kevin L Seymour, Clara Otaola, Adolfo Gil, Rafael Paunero, Francisco J Prevosti Show all

SCIENCE ADVANCES | AMER ASSOC ADVANCEMENT SCIENCE | Published : 2016

Abstract

The causes of Late Pleistocene megafaunal extinctions (60,000 to 11,650 years ago, hereafter 60 to 11.65 ka) remain contentious, with major phases coinciding with both human arrival and climate change around the world. The Americas provide a unique opportunity to disentangle these factors as human colonization took place over a narrow time frame (~15 to 14.6 ka) but during contrasting temperature trends across each continent. Unfortunately, limited data sets in South America have so far precluded detailed comparison. We analyze genetic and radiocarbon data from 89 and 71 Patagonian megafaunal bones, respectively, more than doubling the high-quality Pleistocene megafaunal radiocarbon data set..

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Grants

Awarded by Australian Research Council (ARC)


Awarded by UK Natural Environment Research Council (NERC)


Awarded by Danish National Research Foundation


Awarded by Biotechnology and Biological Sciences Research Council


Awarded by NERC


Awarded by ARC


Awarded by Agencia Nacional de Promocion Cientifica y Tecnologica


Funding Acknowledgements

This research was funded by the Australian Research Council (ARC) (DP140104233 and DP0664562) and the UK Natural Environment Research Council (NERC) (grant NER/B/S/2003/00181 to A.C.). J.T.V. was funded by the Danish National Research Foundation (DNRF94), and R.B. was funded by the Biotechnology and Biological Sciences Research Council (02/A1/G/08351) and NERC (NER/B/S/2003/00181). ARC Future, Federation, and Laureate fellowships supported A.C. (FL140100260, FT099233, and FF0457313), C.T. (FL100100195), C.J.A.B. (DP130103842 and FT110100306), and J.J.A. (FT10010010). F.J.P. was funded by CONICET and Agencia Nacional de Promocion Cientifica y Tecnologica (PICT 2011-309 and PIP 2011-164).