The contribution of extra-pair paternity to the variation in lifetime and age-specific male reproductive success in a socially monogamous species.

ABSTRACT: In socially monogamous species, extra-pair paternity (EPP) is predicted to increase variance in male reproductive success (RS) beyond that resulting from genetic monogamy, thus, increasing the "opportunity for selection" (maximum strength of selection that can act on traits). This prediction is challenging to investigate in wild populations because lifetime reproduction data are often incomplete. Moreover, age-specific variances in reproduction have been rarely quantified. We analyzed 21 years of near-complete social and genetic reproduction data from an insular population of Seychelles warblers (Acrocephalus sechellensis). We quantified EPP's contribution to lifetime and age-specific opportunities for selection in males. We compared the variance in male genetic RS vs social ("apparent") R

SUBMITTER: Raj Pant S 

PROVIDER: S-EPMC9322416 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature