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Title: Where to head: environmental conditions shape foraging destinations in a critically endangered seabird
Authors: Afan, Isabel; Manuel Arcos, Jose; Ramirez, Francisco; Garcia, David; Rodriguez, Beneharo; Delord, Karine; Boue, Amelie and Micol, Thierry; Weimerskirch, Henri; Louzao, Maite
Abstract: Foraging distribution of flying seabirds is constrained by environmental factors influencing individual decision-making. This must be particularly true during the breeding period, when individuals face additional limitations imposed by their central-place foraging behaviour. We used GPS data loggers and Argos PTTs to track the foraging flights of Balearic shearwaters (Puffinus mauretanicus) during the chick-rearing period of 2011-2014 in the Balearic Islands (Western Mediterranean). We identified main areas used by tracked birds and characterised their productivity patterns. Based on a spatial seascape approach of flight costs varying with time, shaped by environmental processes as winds, we also estimated flight costs to reach foraging grounds in outward and return trips from the colony. Individuals repeatedly used the closest areas on the Iberian continental shelf. However, sporadic and favourable wind conditions facilitated low-cost flight to more distant and equally productive areas of the western North African shelf.
Issue Date: 2021
Type: Article
DOI: 10.1007/s00227-021-03830-1
ISSN: 0025-3162
E-ISSN: 1432-1793
Funder: IEO through a Marie Curie Career Integration Grant (CONPELHAB) [PCIG09-GA-2011-293774]
Juan de la CiervaInstituto de Salud Carlos III [JCI-2010-07639]
Ramon y Cajal postdoctoral contractSpanish Government [RYC-2012-09897]
Juan de la Cierva postdoctoral contract [JCI-2015-24531]
SEO/BirdLife through Interreg project FAME
SEO/BirdLife through LIFE + project INDEMARES
SEO/BirdLife through Ibiza Preservation Fund
Appears in Publication types:Artículos científicos

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