Selection on multiple sexual signals in two Central and Eastern European populations of the barn swallow.

ABSTRACT: Variation in intensity and targets of sexual selection on multiple traits has been suggested to play a major role in promoting phenotypic differentiation between populations, although the divergence in selection may depend on year, local conditions or age. In this study, we quantified sexual selection for two putative sexual signals across two Central and East European barn swallow (Hirundo rustica rustica) populations from Czech Republic and Romania over multiple years. We then related these differences in selection to variation in sexual characters among barn swallow populations. Our results show that tail length and ventral coloration vary between populations, sexes, and age classes (first-time breeders vs. experienced birds). We found that selection on tail length was stronger i

SUBMITTER: Pap PL 

PROVIDER: S-EPMC6802025 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature