A spatially explicit model of sex ratio evolution in response to sex-biased dispersal

Jean-Michel Guillon and Jean Bottein

Theoretical Population Biology, 2011, vol. 80, issue 2, 141-149

Abstract: Sex-biased dispersal occurs in all seed plants and many animal species. Theoretical models have shown that sex-biased dispersal can lead to evolutionarily stable biased sex ratios. Here, we use a spatially explicit chessboard model to simulate the evolution of sex ratio in response to sex-biased dispersal range and sex-biased dispersal rate. Two life cycles are represented in the model: one in which both sexes disperse before mating (DDM), the other in which males disperse before mating and mated females or zygotes disperse after mating (DMD). Model parameters include factors like dispersal rate, dispersal range, number of individuals per patch, and habitat heterogeneity.

Keywords: Sex ratio; Sex allocation; Dispersal; Sex-biased dispersal; Spatial heterogeneity; Kin competition (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:eee:thpobi:v:80:y:2011:i:2:p:141-149

DOI: 10.1016/j.tpb.2011.04.003

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