La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Study of the Bluethroat (Luscinia svecica namnetum Mayaud, 1934; Muscicapidae) population reproductive around the Bassin d'Arcachon (Gironde, 33, France)
Auteurs :	Michel Leconte, Auteur ; Christian Paucot, Auteur ; Frederic Dupuy, Auteur ; Laurent Couzi, Auteur ; Sylvain Cardonnel, Auteur ; Pierre Bulens, Auteur
Type de document :	Article
Dans :	Bulletin de la Societe Linneenne de Bordeaux (40(2) 2012)
Article en page(s) :	159-173
Langues:	Anglais
Résumé :	A Bluethroat population (170 +/- 47 breeding pairs) belonging to the subspecies Luscinia svecica namnetum Mayaud, 1934 (Muscicapidae) colonizes the Arcachon Bay (Gironde, France). This population is isolated - established in a Natura 2000 area - and located on the southern fringe of its distribution range. It can be found exclusively in seaside brackish marshes (tidal marshes and polder areas). Its metapopulation distribution, its density (1 territory/10 ha), its demographic structure and its survival (0,55 for each sex between 2001 and 2011) are assessed in order to measure the degree of isolation and the risk of extinction. For this species listed in Annex I of the European Union's Birds Directive 79/409, the conservation of the population described is therefore a major regional issue.

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