globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12970
Scopus记录号: 2-s2.0-85045728744
论文题名:
Short-term prey field lability constrains individual specialisation in resource selection and foraging site fidelity in a marine predator
作者: Courbin N.; Besnard A.; Péron C.; Saraux C.; Fort J.; Perret S.; Tornos J.; Grémillet D.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2018
卷: 21, 期:7
起始页码: 1043
结束页码: 1054
语种: 英语
英文关键词: Behavioural consistency ; Calonectris diomedea ; foraging site fidelity ; resource selection ; Scopoli's shearwater ; temporal resource dynamic ; Western Mediterranean
Scopus关键词: Calonectris diomedea ; Procellariidae
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
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107428
Appears in Collections:气候减缓与适应

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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, 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, France; Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), UMR 248 MARBEC, Avenue Jean Monnet CS 3017, Sète, 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, France; FitzPatrick Institute, DST/NRF Excellence Centre at the University of Cape Town, Rondebosch, South Africa

Recommended Citation:
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]. Ecology Letters,2018-01-01,21(7)
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