La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Cooperative breeding, mate guarding, and nest sharing in two parrot species of New Caledonia
Auteurs :	Joern Theuerkauf, Auteur ; Sophie Rouys, Auteur ; Jean Marc Meriot, Auteur ; Roman Gula, Auteur ; Ralph Kuehn, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (150(4) OCT 2009)
Article en page(s) :	791-797
Langues:	Anglais
Résumé :	We provide evidence for cooperative breeding in two endemic parrot species of New Caledonia, the New Caledonian Parakeet (Cyanoramphus saisseti) and the Horned Parakeet (Eunymphicus cornutus). We intensively monitored 11 breeding attempts in two nests of New Caledonian Parakeets over 5 years, and noticed that two males of different size fed the female and the chicks in each nest. During one breeding attempt, the larger male guarded the female and the smaller male tried to copulate with her inside the nest. Genetic analyses showed that males shared paternity. During 17 breeding attempts in 11 Horned Parakeet nests, we observed two pairs sharing a nest on one occasion but we never saw feeding helpers.

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