La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Fidelity of overwintering shorebirds to roosts on the Moray Basin, Scotland: Implications for predicting impacts of habitat loss
Auteurs :	M. M. Rehfisch, Auteur ; H. Insley, Auteur ; B. Swann, Auteur
Type de document :	Article
Dans :	Ardea (91(1) SPR 2003)
Article en page(s) :	53-70
Résumé :	Recommendations exist for reclaiming parts of the Special Protection Areas (SPAs) within the Moray Basin, Scotland that hold nine and six species of overwintering shorebird in nationally and internationally important numbers, respectively. Over 80% of estuaries in Britain are already affected by landclaim. To manage the effect of landclaim on shorebirds it is necessary to understand how they use the site for both foraging and roosting. Mark-recapture information gathered from over-wintering Moray Basin shorebirds has allowed roost fidelity and movements among roosts to be determined and compared to other sites. Between 1977/78 and 1998/99, 43 593 adults and 19 318 juveniles of nine species of shorebird had been ringed or recaptured at 49 roosts on the Moray Basin. To analyse roost-fidelity the Basin was split into three sections according to geography, each section containing between 14 and

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