Rural selection drives the evolution of an urban–rural cline in coat color in gray squirrels
Bradley J. Cosentino,
John P. Vanek,
James P. Gibbs
Abstract:Phenotypic differences between urban and rural populations are well‐documented, but the evolutionary processes driving trait variation along urbanization gradients are often unclear. We combined spatial data on abundance, trait variation, and measurements of fitness to understand cline structure and test for natural selection on heritable coat color morphs (melanic, gray) of eastern gray squirrels (Sciurus carolinensis) along an urbanization gradient. Population surveys using remote cameras and visual counts a… Show more
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