The role of sex separation in neutral speciation

Details The role of sex separation in neutral speciation The role of sex separation in neutral speciation

2011-11-20

arxiv.org/abs/1111.4643v1

Biology

Quantitative Biology

Populations and Evolution

18 pages + 8 figures

Scientific paper

Neutral speciation mechanisms based on isolation by distance and sexual selection, termed topopatric, have recently been shown to describe the observed patterns of abundance distributions and species-area relationships. Previous works have considered this type of process only in the context of hermaphrodic populations. In this work we extend a hermaphroditic model of topopatric speciation to populations where individuals are explicitly separated into males and females. We show that for a particular carrying capacity speciation occurs under similar conditions, but the number of species generated decreases as compared to the hermaphroditic case. Evolution results in fewer species having more abundant populations.

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