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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Species-specific foraging strategies and segregation mechanisms of sympatric Antarctic fulmarine petrels throughout the annual cycle (2016)
Auteurs :	Karine Delord, Auteur ; Patrick Pinet, Auteur ; David Pinaud, Auteur ; Christophe Barbraud, Auteur ; Sophie De Grissac, Auteur ; Agnes Lewden, Auteur ; Yves Cherel, Auteur ; Henri Weimerskirch, Auteur
Type de document :	Article
Dans :	Ibis (158(3) July 2016)
Article en page(s) :	569-586
Langues:	Anglais
Mots-clés:	Daption capense ; Fulmarus glacialoides ; Pagodroma nivea ; activity ; moult ; seabirds ; stable isotopes ; tracking
Résumé :	Determining the year-round distribution and behaviour of birds is necessary for a better understanding of their ecology and foraging strategies. Petrels form an important component of the high-latitude seabird assemblages in terms of species and individuals. The distribution and foraging ecology of three sympatric fulmarine petrels (Southern Fulmar Fulmarus glacialoides, Cape Petrel Daption capense and Snow Petrel Pagodroma nivea) were studied at Adélie Land, East Antarctica, by combining information from miniaturized saltwater immersion geolocators and stable isotopes from feathers. During the breeding season at a large spatial scale (c. 200 km), the three species overlapped in their foraging areas located in the vicinity of the colonies but were segregated by their diet and trophic level, as indicated by the different chick δ15N values that increased in the order Cape Petrel
En ligne :	http://onlinelibrary.wiley.com/doi/10.1111/ibi.12365/abstract

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