Beringia and the peopling of the Western Hemisphere
Did Beringian environments represent an ecological barrier to humans until less than 15 000 years ago or was access to the Americas controlled by the spatial-temporal distribution of North American ice sheets? Beringian environments varied with respect to climate and biota, especially in the two maj...
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ftcdlib:oai:escholarship.org:ark:/13030/qt1ct9p4tv 2023-09-05T13:16:32+02:00 Beringia and the peopling of the Western Hemisphere Hoffecker, John F Elias, Scott A Scott, G Richard O'Rourke, Dennis H Hlusko, Leslea J Potapova, Olga Pitulko, Vladimir Pavlova, Elena Bourgeon, Lauriane Vachula, Richard S 20222246 2023-01-11 application/pdf https://escholarship.org/uc/item/1ct9p4tv unknown eScholarship, University of California qt1ct9p4tv https://escholarship.org/uc/item/1ct9p4tv public Proceedings of the Royal Society B, vol 290, iss 1990 Animals Humans North America Americas Arctic Regions Mammals Beringia Quaternary palaeogenomics archaeology migration Biological Sciences Agricultural and Veterinary Sciences Medical and Health Sciences article 2023 ftcdlib 2023-08-21T18:04:27Z Did Beringian environments represent an ecological barrier to humans until less than 15 000 years ago or was access to the Americas controlled by the spatial-temporal distribution of North American ice sheets? Beringian environments varied with respect to climate and biota, especially in the two major areas of exposed continental shelf. The East Siberian Arctic Shelf ('Great Arctic Plain' (GAP)) supported a dry steppe-tundra biome inhabited by a diverse large-mammal community, while the southern Bering-Chukchi Platform ('Bering Land Bridge' (BLB)) supported mesic tundra and probably a lower large-mammal biomass. A human population with west Eurasian roots occupied the GAP before the Last Glacial Maximum (LGM) and may have accessed mid-latitude North America via an interior ice-free corridor. Re-opening of the corridor less than 14 000 years ago indicates that the primary ancestors of living First Peoples, who already had spread widely in the Americas at this time, probably dispersed from the NW Pacific coast. A genetic 'arctic signal' in non-arctic First Peoples suggests that their parent population inhabited the GAP during the LGM, before their split from the former. We infer a shift from GAP terrestrial to a subarctic maritime economy on the southern BLB coast before dispersal in the Americas from the NW Pacific coast. Article in Journal/Newspaper Arctic Bering Land Bridge Chukchi Subarctic Tundra Beringia University of California: eScholarship Arctic Pacific The Corridor ENVELOPE(78.139,78.139,-68.582,-68.582) |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Animals Humans North America Americas Arctic Regions Mammals Beringia Quaternary palaeogenomics archaeology migration Biological Sciences Agricultural and Veterinary Sciences Medical and Health Sciences |
spellingShingle |
Animals Humans North America Americas Arctic Regions Mammals Beringia Quaternary palaeogenomics archaeology migration Biological Sciences Agricultural and Veterinary Sciences Medical and Health Sciences Hoffecker, John F Elias, Scott A Scott, G Richard O'Rourke, Dennis H Hlusko, Leslea J Potapova, Olga Pitulko, Vladimir Pavlova, Elena Bourgeon, Lauriane Vachula, Richard S Beringia and the peopling of the Western Hemisphere |
topic_facet |
Animals Humans North America Americas Arctic Regions Mammals Beringia Quaternary palaeogenomics archaeology migration Biological Sciences Agricultural and Veterinary Sciences Medical and Health Sciences |
description |
Did Beringian environments represent an ecological barrier to humans until less than 15 000 years ago or was access to the Americas controlled by the spatial-temporal distribution of North American ice sheets? Beringian environments varied with respect to climate and biota, especially in the two major areas of exposed continental shelf. The East Siberian Arctic Shelf ('Great Arctic Plain' (GAP)) supported a dry steppe-tundra biome inhabited by a diverse large-mammal community, while the southern Bering-Chukchi Platform ('Bering Land Bridge' (BLB)) supported mesic tundra and probably a lower large-mammal biomass. A human population with west Eurasian roots occupied the GAP before the Last Glacial Maximum (LGM) and may have accessed mid-latitude North America via an interior ice-free corridor. Re-opening of the corridor less than 14 000 years ago indicates that the primary ancestors of living First Peoples, who already had spread widely in the Americas at this time, probably dispersed from the NW Pacific coast. A genetic 'arctic signal' in non-arctic First Peoples suggests that their parent population inhabited the GAP during the LGM, before their split from the former. We infer a shift from GAP terrestrial to a subarctic maritime economy on the southern BLB coast before dispersal in the Americas from the NW Pacific coast. |
format |
Article in Journal/Newspaper |
author |
Hoffecker, John F Elias, Scott A Scott, G Richard O'Rourke, Dennis H Hlusko, Leslea J Potapova, Olga Pitulko, Vladimir Pavlova, Elena Bourgeon, Lauriane Vachula, Richard S |
author_facet |
Hoffecker, John F Elias, Scott A Scott, G Richard O'Rourke, Dennis H Hlusko, Leslea J Potapova, Olga Pitulko, Vladimir Pavlova, Elena Bourgeon, Lauriane Vachula, Richard S |
author_sort |
Hoffecker, John F |
title |
Beringia and the peopling of the Western Hemisphere |
title_short |
Beringia and the peopling of the Western Hemisphere |
title_full |
Beringia and the peopling of the Western Hemisphere |
title_fullStr |
Beringia and the peopling of the Western Hemisphere |
title_full_unstemmed |
Beringia and the peopling of the Western Hemisphere |
title_sort |
beringia and the peopling of the western hemisphere |
publisher |
eScholarship, University of California |
publishDate |
2023 |
url |
https://escholarship.org/uc/item/1ct9p4tv |
op_coverage |
20222246 |
long_lat |
ENVELOPE(78.139,78.139,-68.582,-68.582) |
geographic |
Arctic Pacific The Corridor |
geographic_facet |
Arctic Pacific The Corridor |
genre |
Arctic Bering Land Bridge Chukchi Subarctic Tundra Beringia |
genre_facet |
Arctic Bering Land Bridge Chukchi Subarctic Tundra Beringia |
op_source |
Proceedings of the Royal Society B, vol 290, iss 1990 |
op_relation |
qt1ct9p4tv https://escholarship.org/uc/item/1ct9p4tv |
op_rights |
public |
_version_ |
1776198075617902592 |