Stochastic viability in an island model with partial dispersal: Approximation by a diffusion process in the limit of a large number of islands.

Abstract excerpt

In this paper, we investigate a finite population undergoing evolution through an island model with partial dispersal and without mutation, where generations are discrete and non-overlapping. The population is structured into D demes, each containing N individuals of two possible types, A and B, whose viability coefficients, sA and sB, respectively, vary randomly from one generation to the next. We assume that...

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