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Bourgeois K., Dromzee S., Vidal Eric. (2015). Are artificial burrows efficient conservation tools for seabirds ? A case study of two sympatric shearwaters on neighbouring islands and guidelines for improvement. Biological Conservation, 191, 282-290. ISSN 0006-3207

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Lien direct chez l'éditeur doi:10.1016/j.biocon.2015.07.002

Titre
Are artificial burrows efficient conservation tools for seabirds ? A case study of two sympatric shearwaters on neighbouring islands and guidelines for improvement
Année de publication2015
Type de documentArticle référencé dans le Web of Science WOS:000364257100032
AuteursBourgeois K., Dromzee S., Vidal Eric.
SourceBiological Conservation, 2015, 191, p. 282-290. ISSN 0006-3207
RésuméSeabirds are one of the most threatened animal taxa worldwide as they have to deal with threats both at sea and on their breeding grounds. One of these threats is the loss and deterioration of their nesting habitat Here, we evaluated the long-term effectiveness of providing artificial burrows for the conservation of Yelkouan (Puffinus yelkouan) and Scopoli's (Calonectris diomedea) shearwaters on two islands of the Hyeres archipelago (Mediterranean, France). We estimated and compared the longevity, occupancy of and breeding success in artificial burrows and natural cavities. We also analysed factors affecting these three parameters in artificial burrows to optimize their installation for the conservation of our study species. Although their efficacy depended on the species and the island considered, artificial burrows provided more stable and persistent breeding habitat (12-years persistence: 80% vs. 72%), allowed the recruitment of new breeders and good reproductive success (49-76%), and probably reduced inter-specific competition for nesting cavities, across the two islands. The characteristics of both artificial burrows and the areas where they were installed affected artificial burrow efficacy in terms of longevity and occupancy by shearwaters. Thus, artificial burrows were successful tools for the conservation of these two Mediterranean species of shearwaters, particularly when their design and installation were optimized by limiting the risk of their destruction and by selecting burrow and habitat characteristics that enhance their occupancy by the target species. The evaluation of such conservation measures should be performed for every species and site to help managers design and implement effective conservation plans.
Plan de classementEcologie, systèmes aquatiques [036]
Descr. géo.FRANCE ; MEDITERRANEE ; PORT CROS ; PORQUEROLLES
LocalisationFonds IRD [F B010065443]
Identifiant IRDfdi:010065443
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010065443

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