Sexual maturity in Barn Owl (Tyto alba)

Paul Béziers & Alexandre Roulin
The age at first reproduction can significantly impact fitness. We investigated the possible source of variation in the age at first reproduction (“sexual maturity”) and its consequences for lifetime reproductive success in a wild population of barn owls. This raptor is sexually dimorphic for two melanin-based plumage traits shown to covary with sex-specific behaviour and physiology. We observed that females were sexually mature earlier than males, an effect that depended on the colour of their...
1 citation reported since publication in 2021.
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