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Singing as a handicap: the effects of food availability and weather on song output in the Australian reed warbler Acrocephalus australis

M. L. Berg, Auteur ; N. H. Beintema, Auteur ; J. A. Welbergen, Auteur ; J. Komdeur, Auteur

Dans Journal of Avian Biology (36(2) MAR 2005)

Bird song is generally regarded as a sexually selected trait, and may represent a reliable handicap signal under at least certain conditions. Females may use the degree of male song production as a reliable cue to male condition or territory qua[...]

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