La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	No evidence for recognition errors in Acrocephalus warblers
Auteurs :	E. Roskaft, Auteur ; A. Moksnes, Auteur ; D. Meilvang, Auteur ; V. Bicik, Auteur ; J. Jemelikova, Auteur ; M. Honza, Auteur
Type de document :	Article
Dans :	Journal of Avian Biology (33(1) MAR 2002)
Article en page(s) :	31-38
Langues:	Anglais
Résumé :	Failure to recognise own eggs (recognition errors) may be an important selective force behind acceptance of parasitic eggs, leading to a balance between rejecters and acceptors in a host population (the equilibrium hypothesis). We predicted that recognition errors should occur frequently among host species with intermediate rejection rates, whose rejection behaviour shows many conditional responses. The reed warbler Acrocephalus scirpaceus and great reed warbler A. arundinaceus fulfil these requirements. These two species were therefore used in an experiment where host birds were exposed to a common cuckoo Cuculus canorus dummy, either

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