CALEY, Thibaut; SOURON, Antoine; UNO, Kevin; MACHO, Gabriele

doi:10.1146/annurev-marine-032223-031306

Environnements et Paléoenvironnements OCéaniques [EPOC]

SOURON, Antoine

De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie [PACEA]

UNO, Kevin
Department of Human Evolutionary Biology

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Article de revue

Ce document a été publié dans

Annual Review of Marine Science. 2024-07-09

Résumé en anglais

The relationship between climate and human evolution is complex, and the causal mechanisms remain unknown. Here, we review and synthesize what is currently known about climate forcings on African landscapes, focusing mainly on the last 4 million years. We use information derived from marine sediment archives and data-numerical climate model comparisons and integration. There exists a heterogeneity in pan-African hydroclimate changes, forced by a combination of orbitally paced, low-latitude fluctuations in insolation; polar ice volume changes; tropical sea surface temperature gradients; the Walker circulation; and possibly greenhouse gases. Pan-African vegetation changes do not follow the same pattern, which is suggestive of additional influences, such as CO$_2$ and temperature. We caution against reliance on temporal correlations between global or regional climate, environmental changes, and human evolution and briefly proffer some ideas on how pan-African climate trends could help create novel conceptual frameworks to determine the causal mechanisms of associations between climate/habitat change and hominin evolution.< Réduire

Mots clés en anglais

paleoclimate

human evolution

marine records

Africa

numerical modeling

causal mechanisms

URI

https://oskar-bordeaux.fr/handle/20.500.12278/205882

DOI

http://dx.doi.org/10.1146/annurev-marine-032223-031306

Projet Européen

PLIODIS

Project ANR

évaluer le cycle HYDrologique aux basses latitudes dans les modèles numéRiques de climAt en conTraignant les changements passés de salinitE de l'océan. - ANR-21-CE01-0001

Unités de recherche

EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805

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Climate and Human Evolution: Insights from Marine Records