La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Classical polyandry found in the three-toed woodpecker Picoides tridactylus
Auteurs :	P. Pechacek, Auteur ; K. G. Michalek, Auteur ; H. Winkler, Auteur ; D. Blomqvist, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (147(1) JAN 2006)
Article en page(s) :	112-114
Langues:	Anglais
Résumé :	We report two cases of simultaneous, social polyandry in the three-toed woodpecker Picoides tridactylus found in Berchtesgaden National Park, Germany during an 11-year study. The first case was between two neighbouring pairs in 2003. A female incubated both of her clutches during a period of at least 8 days. The second case was in 2004 between a widowed male and a female of a neighbouring pair. This time, a female divided parental care between her two clutches during a period of at least 27 days. We hypothesise that social polyandry in the three-toed woodpecker may be linked to the parental quality of the first male.

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