La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Do male Hooded Warblers guard their mates when their paternity is most at risk?
Auteurs :	B. C. Fedy, Auteur ; D. R. Norris, Auteur ; B. J. M. Stutchbury, Auteur
Type de document :	Article
Dans :	Journal of Field Ornithology (73(4) FAL 2002)
Article en page(s) :	420-426
Langues:	Anglais
Résumé :	Males of socially monogamous species may benefit from using behavioral tactics to ensure their paternity of the young produced by their social mates. We tested whether male Hooded Warblers (Wilsonia citrina) use mate guarding and high song output in an attempt to prevent extra-pair copulations (EPC) by their Marc,. in this species, most EPC intrusions occur when females produce conspicuous chip vocalizations. Using radiotelemetry, we tracked the male response to female chipping throughout her fertile and non-fertile periods, Our results show that mates do not intensively guard their mates by closely associating with dicni or by increasing their song rate. Mate guarding was not influenced by male age or their own EPC behavior. Female influence on fertilizations and male pursuit of EPC may render mate guarding an ineffective strategy fur ensuring paternity in Hooded Warblers.

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