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

Autores
Paunero, Rafael Sebastián
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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 timeframe (∼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 sets from the region.Weidentify anarrowmegafaunal extinction phase 12, 280 ± 110 years ago, some 1 to 3 thousand years after initial human presence in the area. Although humans arrived immediately prior to a cold phase, the Antarctic Cold Reversal stadial, megafaunal extinctions did not occur until the stadial finished and the subsequent warming phase commenced some 1 to 3 thousand years later. The increased resolution provided by the Patagonianmaterial reveals that the sequence of climate andextinctionevents inNorthandSouth America were temporally inverted, but in both cases, megafaunal extinctions did not occur until human presence and climate warming coincided. Overall, metapopulation processes involving subpopulation connectivity on a continental scale appear to have been critical for megafaunal species survival of both climate change and human impacts.
La lista completa de autores que integran el documento puede consultarse en el archivo
Facultad de Ciencias Naturales y Museo
Materia
Arqueología
Ecología
Megafaunal extinctions
Late Pleistocene
Climate change
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/85769

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spelling Synergistic roles of climate warming and human occupation in Patagonian megafaunal extinctions during the Last DeglaciationPaunero, Rafael SebastiánArqueologíaEcologíaMegafaunal extinctionsLate PleistoceneClimate changeThe 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 timeframe (∼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 sets from the region.Weidentify anarrowmegafaunal extinction phase 12, 280 ± 110 years ago, some 1 to 3 thousand years after initial human presence in the area. Although humans arrived immediately prior to a cold phase, the Antarctic Cold Reversal stadial, megafaunal extinctions did not occur until the stadial finished and the subsequent warming phase commenced some 1 to 3 thousand years later. The increased resolution provided by the Patagonianmaterial reveals that the sequence of climate andextinctionevents inNorthandSouth America were temporally inverted, but in both cases, megafaunal extinctions did not occur until human presence and climate warming coincided. Overall, metapopulation processes involving subpopulation connectivity on a continental scale appear to have been critical for megafaunal species survival of both climate change and human impacts.La lista completa de autores que integran el documento puede consultarse en el archivoFacultad de Ciencias Naturales y Museo2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/85769enginfo:eu-repo/semantics/altIdentifier/issn/2375-2548info:eu-repo/semantics/altIdentifier/doi/10.1126/sciadv.1501682info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/4.0/Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:49:03Zoai:sedici.unlp.edu.ar:10915/85769Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:49:04.011SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Synergistic roles of climate warming and human occupation in Patagonian megafaunal extinctions during the Last Deglaciation
title Synergistic roles of climate warming and human occupation in Patagonian megafaunal extinctions during the Last Deglaciation
spellingShingle Synergistic roles of climate warming and human occupation in Patagonian megafaunal extinctions during the Last Deglaciation
Paunero, Rafael Sebastián
Arqueología
Ecología
Megafaunal extinctions
Late Pleistocene
Climate change
title_short Synergistic roles of climate warming and human occupation in Patagonian megafaunal extinctions during the Last Deglaciation
title_full Synergistic roles of climate warming and human occupation in Patagonian megafaunal extinctions during the Last Deglaciation
title_fullStr Synergistic roles of climate warming and human occupation in Patagonian megafaunal extinctions during the Last Deglaciation
title_full_unstemmed Synergistic roles of climate warming and human occupation in Patagonian megafaunal extinctions during the Last Deglaciation
title_sort Synergistic roles of climate warming and human occupation in Patagonian megafaunal extinctions during the Last Deglaciation
dc.creator.none.fl_str_mv Paunero, Rafael Sebastián
author Paunero, Rafael Sebastián
author_facet Paunero, Rafael Sebastián
author_role author
dc.subject.none.fl_str_mv Arqueología
Ecología
Megafaunal extinctions
Late Pleistocene
Climate change
topic Arqueología
Ecología
Megafaunal extinctions
Late Pleistocene
Climate change
dc.description.none.fl_txt_mv 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 timeframe (∼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 sets from the region.Weidentify anarrowmegafaunal extinction phase 12, 280 ± 110 years ago, some 1 to 3 thousand years after initial human presence in the area. Although humans arrived immediately prior to a cold phase, the Antarctic Cold Reversal stadial, megafaunal extinctions did not occur until the stadial finished and the subsequent warming phase commenced some 1 to 3 thousand years later. The increased resolution provided by the Patagonianmaterial reveals that the sequence of climate andextinctionevents inNorthandSouth America were temporally inverted, but in both cases, megafaunal extinctions did not occur until human presence and climate warming coincided. Overall, metapopulation processes involving subpopulation connectivity on a continental scale appear to have been critical for megafaunal species survival of both climate change and human impacts.
La lista completa de autores que integran el documento puede consultarse en el archivo
Facultad de Ciencias Naturales y Museo
description 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 timeframe (∼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 sets from the region.Weidentify anarrowmegafaunal extinction phase 12, 280 ± 110 years ago, some 1 to 3 thousand years after initial human presence in the area. Although humans arrived immediately prior to a cold phase, the Antarctic Cold Reversal stadial, megafaunal extinctions did not occur until the stadial finished and the subsequent warming phase commenced some 1 to 3 thousand years later. The increased resolution provided by the Patagonianmaterial reveals that the sequence of climate andextinctionevents inNorthandSouth America were temporally inverted, but in both cases, megafaunal extinctions did not occur until human presence and climate warming coincided. Overall, metapopulation processes involving subpopulation connectivity on a continental scale appear to have been critical for megafaunal species survival of both climate change and human impacts.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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format article
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info:eu-repo/semantics/altIdentifier/doi/10.1126/sciadv.1501682
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc/4.0/
Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
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rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/4.0/
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