Interspecific brood parasitism by the Common Eider Somateria mollissima at Er Valant Island, Brittany, France

Arnaud Le Neve (1) , Karine Delord (2) , Christophe Barbraud (2) , Jean-Claude Barbraud (3) , M. Fortin (4)

1 Groupe Ornithologique Breton
2 CEBC - Centre d'Études Biologiques de Chizé
3 4 impasse du Vignaud
4 Bretagne Vivante - SEPNB

Interspecific brood parasitism (IBP) involves individuals of one species leaving the incubation and rearing of their brood to another species, while conspecific brood parasitism (CBP) involves a female laying its eggs in the nest of another of the same species (Robert & Sorci 2001; Lyon & Eadie 2008). CBP is a common reproductive tactic in Anatidae, found in 46% of species including the Common Eider Somateria mollissima (Yom-Tov 2001), while IBP is infrequent in precocial species such as Anatidae (Robertson 1998).

Domaines: Sciences de l'environnement

Arnaud Le Neve, Karine Delord, Christophe Barbraud, Jean-Claude Barbraud, M. Fortin. Interspecific brood parasitism by the Common Eider Somateria mollissima at Er Valant Island, Brittany, France. Seabird, 2011, 24, pp.107-109. ⟨hal-00668179⟩