La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	The influence of male age on within-pair and extra-pair paternity in passerines
Auteurs :	Ian R. Cleasby, Auteur ; Shinichi Nakagawa, Auteur
Type de document :	Article
Dans :	Ibis (154(2) APR 2012)
Article en page(s) :	318-324
Résumé :	Although male age has often been found to predict success in gaining extra-pair paternity, it is unclear whether this gain is associated with an individuals success in avoiding cuckoldry. We examined the relationship between male age and both within- and extra-pair paternity in passerines using a meta-analytical approach. There was a positive correlation between male age and success in extra-pair paternity but little evidence for an association between male age and within-pair paternity. In addition, effect sizes for male within-pair paternity and male extra-pair paternity were not significantly correlated. Thus, factors that predict success in obtaining extra-pair paternity, such as male age, may not necessarily predict success in avoiding cuckoldry.

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