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

Le Nevé, A.1*, Delord, K.2 ORCID logo, Barbraud, C.2, Barbraud, J.-C.3 & Fortin, M.4

https://doi.org/10.61350/sbj.24.107

1 Groupe Ornithologique Breton, BP 42, F- 56110 Gourin, France

2 CEBC-CNRS UPR 1934, F-79360 Villiers en Bois, France

3 4 impasse du Vignaud, La Nougerée, F-17770 Bercloux, France

4 Bretagne Vivante – SEPNB, Réserve naturelle des Marais de Séné, Brouël Kerbihan, F-56860 Séné, France

Full paper

Abstract

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).

Acknowledgements

We thank Bernard Cadiou, Sébastien Reeber, Karl Schulze-Hagen, Gabriele Sorci, Bård G. Stokke and Pierre Yésou for providing references, Bård G. Stokke for his incentive to write this short note, and an anonymous referee for useful comments.

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