Climatic windows for human migration out of Africa in the past 300,000 years.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
24 08 2021
24 08 2021
Historique:
received:
21
10
2020
accepted:
02
07
2021
entrez:
25
8
2021
pubmed:
26
8
2021
medline:
8
9
2021
Statut:
epublish
Résumé
Whilst an African origin of modern humans is well established, the timings and routes of their expansions into Eurasia are the subject of heated debate, due to the scarcity of fossils and the lack of suitably old ancient DNA. Here, we use high-resolution palaeoclimate reconstructions to estimate how difficult it would have been for humans in terms of rainfall availability to leave the African continent in the past 300k years. We then combine these results with an anthropologically and ecologically motivated estimate of the minimum level of rainfall required by hunter-gatherers to survive, allowing us to reconstruct when, and along which geographic paths, expansions out of Africa would have been climatically feasible. The estimated timings and routes of potential contact with Eurasia are compatible with archaeological and genetic evidence of human expansions out of Africa, highlighting the key role of palaeoclimate variability for modern human dispersals.
Identifiants
pubmed: 34429408
doi: 10.1038/s41467-021-24779-1
pii: 10.1038/s41467-021-24779-1
pmc: PMC8384873
doi:
Substances chimiques
DNA, Ancient
0
Types de publication
Historical Article
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
4889Informations de copyright
© 2021. The Author(s).
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