Traditional models for female extra-pair matings assume that females indirectly benefit from extra-pair mating behaviour. Under these so-called “adaptive” models, extra-pair males are hypothesized to
Data for figureS1: PC scores of monogamous, polygamous and unpaired individuals of both sexes. Pairing status during the first breeding round in relation to the PC score from the second breeding round
Assortative mating is a common pattern in sexually reproducing species, but the mechanisms leading to assortment remain poorly understood. By using the European common frog (Rana temporaria) as a mode
