Impact of migration on the multi-strategy selection in finite group-structured populations.

ABSTRACT: For large quantities of spatial models, the multi-strategy selection under weak selection is the sum of two competition terms: the pairwise competition and the competition of multiple strategies with equal frequency. Two parameters σ₁ and σ₂ quantify the dependence of the multi-strategy selection on these two terms, respectively. Unlike previous studies, we here do not require large populations for calculating σ₁ and σ₂, and perform the first quantitative analysis of the effect of migration on them in group-structured populations of any finite sizes. The Moran and the Wright-Fisher process have the following common findings. Compared with well-mixed populations, migration causes σ₁ to change with the mutation probability from a decreas

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC5073348 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature