Paternal genetic effects on offspring fitness are context dependent within the extrapair mating system of a socially monogamous passerine.


Avian extrapair mating systems provide an interesting model to assess the role of genetic benefits in the evolution of female multiple mating behavior, as potentially confounding nongenetic benefits of extrapair mate choice are seen to be of minor importance. Genetic benefit models of extrapair mating behavior predict that females engage in extrapair… (More)


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