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Simulated ecology-driven sympatric speciation

J. S. Sa' Martins·S. Moss de Oliveira·G. A. de Medeiros
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Abstract

We introduce a multi-locus genetically acquired phenotype, submitted to mutations and with selective value, in an age-structured model for biological aging. This phenotype describes a single-trait effect of the environment on an individual, and we study the resulting distribution of this trait among the population. In particular, our simulations show that the appearance of a double phenotypic attractor in the ecology induces the emergence of a stable polymorphism, as observed in the Galapagos finches. In the presence of this polymorphism, the simulations generate short-term speciation, when mating preferences are also allowed to suffer mutations and acquire selective value.

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J. S. Sa' Martins, S. Moss de Oliveira, G. A. de Medeiros. 2001-08-08. Simulated ecology-driven sympatric speciation. https://doi.org/10.1103/physreve.64.021906

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