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Brief Communications
Nature 415, 279-280 (17 January 2002) | doi:10.1038/415279a
Sexual selection: Male displays adjusted to female's response
Gail L. Patricelli1, J. Albert C. Uy1,2, Gregory Walsh3 & Gerald Borgia1
Abstract
Macho courtship by the satin bowerbird is tempered to avoid frightening the female.
Abstract
Models of sexual selection generally assume that behavioural courtship displays reflect intrinsic male qualities such as condition, and that males display with maximum intensity to attract females to mate1. Here we use robotic females in a field experiment to demonstrate that male satin bowerbirds (Ptilonorhynchus violaceus) do not always display at maximum intensity — rather, successful males modulate their displays in response to signals from females. Our results indicate that sexual selection may favour those males that can produce intense displays but which know how to modify these according to the female response.
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