气候变化领域集成服务门户(CCPortal): Short-term prey field lability constrains individual specialisation in resource selection and foraging site fidelity in a marine predator

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DOI	10.1111/ele.12970
	Short-term prey field lability constrains individual specialisation in resource selection and foraging site fidelity in a marine predator
	Courbin N.; Besnard A.; Péron C.; Saraux C.; Fort J.; Perret S.; Tornos J.; Grémillet D.
发表日期	2018
ISSN	1461023X
卷号	21 期号:7
英文摘要	Spatio-temporally stable prey distributions coupled with individual foraging site fidelity are predicted to favour individual resource specialisation. Conversely, predators coping with dynamic prey distributions should diversify their individual diet and/or shift foraging areas to increase net intake. We studied individual specialisation in Scopoli's shearwaters (Calonectris diomedea) from the highly dynamic Western Mediterranean, using daily prey distributions together with resource selection, site fidelity and trophic-level analyses. As hypothesised, we found dietary diversification, low foraging site fidelity and almost no individual specialisation in resource selection. Crucially, shearwaters switched daily foraging tactics, selecting areas with contrasting prey of varying trophic levels. Overall, information use and plastic resource selection of individuals with reduced short-term foraging site fidelity allow predators to overcome prey field lability. Our study is an essential step towards a better understanding of individual responses to enhanced environmental stochasticity driven by global changes, and of pathways favouring population persistence. © 2018 John Wiley & Sons Ltd/CNRS
英文关键词	Behavioural consistency; Calonectris diomedea; foraging site fidelity; resource selection; Scopoli's shearwater; temporal resource dynamic; Western Mediterranean
语种	英语
scopus关键词	Calonectris diomedea; Procellariidae; animal; bird; diet; ecosystem; predation; Animals; Birds; Diet; Ecosystem; Predatory Behavior
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/121297
作者单位	Centre d'Ecologie Fonctionnelle et Evolutive (CEFE), UMR 5175, Centre National de la Recherche Scientifique (CNRS), Université de Montpellier, Université Paul Valéry Montpellier, Ecole Pratiques des Hautes Etudes (EPHE), 1919 Route de Mende, Montpellier Cedex 5, 34293, France; Marine Biodiversity Exploitation and Conservation (MARBEC), UMR 248, Institut de Recherche pour le Développement (IRD), Université de Montpellier, Place Eugène Bataillon - bât 24 - CC093, Montpellier Cedex 5, 34095, France; Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), UMR 248 MARBEC, Avenue Jean Monnet CS 3017, Sète, 34203, France; Littoral, Environnement et Sociétés (LIENSs), UMR 7266, Centre National de la Recherche Scientifique (CNRS), Université La Rochelle, 2 rue Olympe de Gouges, La Rochelle, 17000, France; FitzPatrick Institute, DST/NRF Excellence Centre at the University of Cape Town, Rondebosch, 7701, South Africa
推荐引用方式 GB/T 7714	Courbin N.,Besnard A.,Péron C.,et al. Short-term prey field lability constrains individual specialisation in resource selection and foraging site fidelity in a marine predator[J],2018,21(7).
APA	Courbin N..,Besnard A..,Péron C..,Saraux C..,Fort J..,...&Grémillet D..(2018).Short-term prey field lability constrains individual specialisation in resource selection and foraging site fidelity in a marine predator.Ecology Letters,21(7).
MLA	Courbin N.,et al."Short-term prey field lability constrains individual specialisation in resource selection and foraging site fidelity in a marine predator".Ecology Letters 21.7(2018).