La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Host response to brood parasitism in two species of diving duck
Auteurs :	B. D. Dugger, Auteur ; P. Blums, Auteur ; L. H. Fredrickson, Auteur
Type de document :	Article
Dans :	Wildfowl (50 1999)
Article en page(s) :	69-76
Langues:	Anglais
Résumé :	We used egg addition experiments and naturally parasitised nests of Common Pochard Aythya ferina and Tufted Duck A. fuligula to look for three host responses to brood parasitism; nest abandonment, egg discrimination, and between-year nest site movement. Parasitised females did not abandon nests more often (P = 0.26), discriminate against parasite eggs (P's gtoreq 0.38), or move their nests a greater distance (P's gtoreq 0.39) than non-parasitised females for either species. Host female Common Pochards and Tufted Ducks do not discriminate against parasitic eggs once they are added to the nest.

Lundi , mardi et jeudi de 9h à 12h et de 13h à 17h00 : ouverture au public ...