Article (Périodiques scientifiques)
Fitness-related parameters improve presence-only distribution modelling for conservation practice: The case of the red-backed shrike
Titeux, Nicolas; Dufrêne, Marc; Radoux, Julien et al.
2007In Biological Conservation, 138 (1-2), p. 207-223
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Mots-clés :
Breeding success; Ecological niche factor analysis; Ecological resources; Habitat suitability; Predictive modelling; Species distribution models; Eurasia; Europe; Western Europe; Aves; Hexapoda; Lanius collurio; Passeriformes
Résumé :
[en] The red-backed shrike (Lanius collurio L.) is a bird living in human-altered agricultural areas that are managed by extensive farming techniques. This passerine species has declined significantly in Western Europe over the last 30-40 years. The development of efficient species-specific conservation strategies relies on fine-grained information about the ecological resources and environmental conditions that constitute its reproductive habitat in this agricultural landscape. Species distribution models are used increasingly in conservation biology to provide such information. Most studies investigate the environmental pattern of species distribution, assuming that species records are reliable indicators of habitat suitability. However, ecological theory on source-sink dynamics and ecological traps points out that some individuals may be located outside the environmental bounds of their species' reproductive niche. Those individuals could reduce model accuracy and limit model utility. Parameters related to the reproductive success of this shrike in Southern Belgium were integrated into a fine-scale presence-only modelling framework to demonstrate this problem and to address critical habitat requirements of this species relative to conservation management. Integrating reproductive parameters into the modelling framework showed that individuals occurred, but did not reproduce successfully, above a certain environmental threshold. This indicated that the reproductive niche of the shrike is ecologically narrower than standard practice in species distribution modelling would suggest. The major resources (nest sites availability, distance to human settlements, suitable perching sites, foraging areas and insect abundance) required for the reproduction of the red-backed shrike were quantified and ranked to offer concrete species-specific conservation management guidelines. © 2007 Elsevier Ltd. All rights reserved.
Disciplines :
Sciences de l’environnement & écologie
Auteur, co-auteur :
Titeux, Nicolas;  Biodiversity Research Centre, Université catholique de Louvain, Croix du Sud 4-5, B-1348 Louvain-la-Neuve, Belgium
Dufrêne, Marc  ;  Université de Liège - ULiège > Forêts, Nature et Paysage > Biodiversité et Paysage
Radoux, Julien;  Department of Environmental Sciences and Land Use Planning, Université catholique de Louvain, Croix du Sud 2/16, B-1348 Louvain-la-Neuve, Belgium
Hirzel, Alexandre H.;  Department of Ecology and Evolution, University of Lausanne, Biophore, 1015 Lausanne, Switzerland
Defourny, Pierre;  Department of Environmental Sciences and Land Use Planning, Université catholique de Louvain, Croix du Sud 2/16, B-1348 Louvain-la-Neuve, Belgium
Langue du document :
Anglais
Titre :
Fitness-related parameters improve presence-only distribution modelling for conservation practice: The case of the red-backed shrike
Date de publication/diffusion :
2007
Titre du périodique :
Biological Conservation
ISSN :
0006-3207
Maison d'édition :
Elsevier Science, Oxford, Royaume-Uni
Volume/Tome :
138
Fascicule/Saison :
1-2
Pagination :
207-223
Peer reviewed :
Peer reviewed vérifié par ORBi
Disponible sur ORBi :
depuis le 24 mars 2013

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