La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Diving behaviour of Grey Petrels and its relevance for mitigating long-line by-catch (2016)
Auteurs :	Dominic P. Rollinson, Auteur ; Ben J. Dilley, Auteur ; Delia Davies, Auteur ; Peter G. Ryan, Auteur
Type de document :	Article
Dans :	Emu - Austral Ornithologie (116(4) 2016/11/23)
Article en page(s) :	340-349
Langues:	Anglais
Résumé :	The Grey Petrel (Procellaria cinerea) is listed as Near Threatened globally owing to incidental mortality on long-line fishing gear and reduced breeding success on islands caused by the introduction of alien predators. However, there are few studies of its foraging ecology and none of its diving behaviour. We obtained data from temperature–depth recorders (n = 7 birds) and global positioning satellite trackers (n = 15) deployed on Grey Petrels breeding on Gough Island, South Atlantic Ocean. Most birds foraged in the productive oceanic waters west or north-west of South Georgia. Average maximum dive-depth was 3.2 ± 2.2 m with most dives
En ligne :	http://www.publish.csiro.au/MU/MU15032

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