Natural variation in social conditions affects male mate choosiness in the amphipod Gammarus roeselii.

ABSTRACT: The extent of male mate choosiness is driven by a trade-off between various environmental factors associated with the costs of mate acquisition, quality assessment and opportunity costs. Our knowledge about natural variation in male mate choosiness across different populations of the same species, however, remains limited. In this study, we compared male mate choosiness across 10 natural populations of the freshwater amphipod Gammarus roeselii (Gervais 1835), a species with overall high male mating investments, and evaluated the relative influence of population density and sex ratio (both affecting mate availability) on male mate choosiness. We investigated amplexus establishment after separating mating pairs and presenting focal males with a novel, size-matched female from the same

SUBMITTER: Lipkowski K 

PROVIDER: S-EPMC9450172 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature