The 'multiregional metapopulation model' proposes that with continued , geographically separated subpopulations of evolving humans maintained their identification as one species.

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Gene flow, or the exchange of genes between different populations, would allow for the maintenance of gene flow and prevent the formation of distinct species. This is consistent with the multiregional metapopulation model, which proposes that evolving humans were geographically separated but still maintained their identification as one species. Nonrandom mating and niche construction may also play a role in shaping the genetic diversity of populations, but there is no mention of them being specifically related to the multiregional metapopulation model. Genetic drift and mutation can lead to population divergence, which would contradict the idea of maintaining identification as one species.

The 'Multiregional Metapopulation Model' Proposes That with Continued , Geographically