Population inter-connectivity over the past 120,000 years explains distribution and diversity of Central African hunter-gatherers
| Autor: | Padilla-Iglesias, Cecilia, Atmore, Lane M, Olivero, Jesús, Lupo, Karen, Manica, Andrea, Arango Isaza, Epifanía, Vinicius, Lucio, Bamberg Migliano, Andrea |
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| Přispěvatelé: | University of Zurich, Padilla-Iglesias, Cecilia, Atmore, Lane M [0000-0002-8903-8149], Olivero, Jesús [0000-0003-1714-0360], Lupo, Karen [0000-0003-3652-3105], Manica, Andrea [0000-0003-1895-450X], Vinicius, Lucio [0000-0002-9396-3249], Apollo - University of Cambridge Repository |
| Rok vydání: | 2021 |
| Předmět: |
10207 Department of Anthropology
media_common.quotation_subject Ecology (disciplines) Population hunter-gatherers 10127 Institute of Evolutionary Biology and Environmental Studies Deep history Effective population size Cultural diversity population dynamics Humans education Anthropology Cultural Sociality media_common Population Density 1000 Multidisciplinary education.field_of_study Central Africa Multidisciplinary 300 Social sciences sociology & anthropology Ecology Genetic Variation Agriculture environmental change Cultural Diversity Geography Archaeology ecological niche modelling Homo sapiens Africa Diversity (politics) |
| ISSN: | 0027-8424 |
| DOI: | 10.1101/2021.06.21.449204 |
| Popis: | The evolutionary history of African hunter-gatherers holds key insights into modern human diversity. Here we combine ethnographic and genetic data on Central African hunter-gatherers (CAHG) to show that their current distribution and density is explained by ecology rather than by a displacement to marginal habitats due to recent farming expansions, as commonly assumed. We also predict hunter-gatherer presence across Central Africa over the past 120,000 years using paleoclimatic reconstructions, which were statistically validated by dated archaeological sites. Finally, we show that genomic estimates of separation times between CAHG groups match our ecological estimates of periods favouring population splits, and that recoveries of connectivity would have facilitated subsequent gene-flow. Our results reveal that CAHG stem from a deep history of partially connected populations. This form of sociality allowed the coexistence of relatively large effective population sizes and local differentiation, with important implications for the evolution of genetic and cultural diversity in Homo sapiens. |
| Databáze: | OpenAIRE |
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