The genetics of adaptation to discrete heterogeneous environments: frequent mutation or large-effect alleles can allow range expansion.

Abstract excerpt

Range expansions are complex evolutionary and ecological processes. From an evolutionary standpoint, a populations' adaptive capacity can determine the success or failure of expansion. Using individual-based simulations, we model range expansion over a two-dimensional, approximately continuous landscape. We investigate the ability of populations to adapt across patchy environmental gradients and examine how the...

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