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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Distribution, population size and conservation status of Corncrake Crex crex in North-east Hungary, 1997-2006
Auteurs :	Sandor Boldogh, Auteur ; Zsolt Szegedi, Auteur ; Peter Szentgyorgyi, Auteur ; Zoltan Petrovics, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (130(3) 2009)
Article en page(s) :	153-158
Résumé :	Corncrake distribution and population size were studied between 1997 and 2006 in order to develop and define the best conservation strategies in North-cast Hungary. According to our results, this area supports an important breeding Population with a maximum of 746 singing males. About 50-55% of the Hungarian Corncrake population breeds in the study area, which only covers 5% of the national territory of Hungary. The population size fluctuated considerably, similar to other populations in Hungary and Europe. In different years, remarkable changes in the spatial distribution occurred. The most important breeding sites in the floodplain of Tisza and Bodrog River were completely deserted in 2005 and 2006 as a result of precipitation and subsequent high water tables. The most significant breeding areas are under legal protection. More than 50 % of the population is found in protected territories (national park, nature reserves, Natura 2000 sites). The main threats are mechanised and early mowing and the invasion of adventive plants in the breeding sites. The maintaining of the most important breeding areas in protected as well as in non-protected territories also requires active administrative operations and habitat management.

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