Biased dispersal can explain fast human range expansions.
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ABSTRACT:
SUBMITTER: Fort J
PROVIDER: S-EPMC7271227 | biostudies-literature | 2020 Jun
REPOSITORIES: biostudies-literature
Publications
Biased dispersal can explain fast human range expansions.
Scientific reports 20200603 1
Some human fronts spread faster than expected by models based on dispersal and reproduction. The only explanation proposed so far assumes that some autochthonous individuals are incorporated by the expanding populations, leading to faster front speeds. Here we show that simple models without this effect are also consistent with the observed speeds of two fronts (a Khoi-khoi expansion of herders and a Bantu expansion of farmers), provided that the dispersal of individuals is biased (i.e., more pr ...[more]
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