Male size predicts extrapair paternity in a socially monogamous bird with extreme sexual size dimorphism

摘要: Lay Summary The New Zealand tui is an iconic bird exhibiting extreme sexual size dimorphism. This unusual trait for a monogamous species and so we tested whether male’s body was related to his paternity success. First, found that tūī had very high rates of extrapair compared other species. Second, larger males higher Thus, in contrast with previous studies, our results show can lead the evolution