Seabirds vary responses to supplemental food under dynamic natural prey availability and feeding aggregation composition

While foraging, a predator can feed solitarily or in a group. The net energy gain of joining a group is predicted to vary with prey patch quality, species-specific prey capture behavior, and the size and species composition of the predator group. In coastal Newfoundland, Canada, capelin (Mallotus vi...

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Veröffentlicht in:	The Auk 2020-01, Vol.137 (1), p.1-13
Hauptverfasser:	Maynard, Laurie D, Carvalho, Paloma C, Davoren, Gail K
Format:	Artikel
Sprache:	eng
Schlagworte:	abats et rejets de pêche Aggregation Animal behavior Aquatic birds Ardenna gravis Availability Behavioural responses Birds Bycatch capelan Capelin Clupeoid fisheries Competitors Composition Conspecifics Discards Fish Fish offal Fish silage Fish stocks Fisheries fisheries discards and offal Food Food sources Foods Forage Forage fishes Foraging foraging success Fulmarus glacialis goéland Group size groupe d'alimentation mixte gull Larus argentatus Mallotus villosus Marine fishes mixed-species feeding assemblage optimal group size Predators Prey procellarid procellariidé RESEARCH ARTICLE Seabirds Species composition Success succès d'alimentation taille de groupe optimale
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