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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Birds on arable set-asides in Schleswig-Holstein during breeding season and in autumn
Auteurs :	Helge Neumann, Auteur ; Uwe Dierking, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (134(2) 2013)
Article en page(s) :	99-114
Résumé :	Bird colonisation of selected areas of the agro-environmental scheme "arable habitats" was surveyed in the federal state of Schleswig-Holstein in 2011. The scheme comprises temporary set-aside of arable land, whereat contract areas are sown with a flower mixture or left for natural succession for a period of two to three years.In the breeding period, in total 17 bird species were recorded on the programme areas. Eight species (47%) are listed in the species action programme and/or the red list of threatened breeding birds of Schleswig-Holstein. Six species (35%) are part of the farmland bird index. Skylarks and Blue-headed Yellow Wagtails showed the largest presence on "arable habitat-areas. Concerning their state-wide contribution, Woodlarks reached a remarkable presence. Other species recorded on programme sites mainly only showed low presences. In comparison to reference sites, which were conventionally cultivated with arable crops, "arable habitat" areas hold significantly more species as well as more birds in total. This differences between area pairs were also significant for the guild of threatened species and farmland bird index.Subsequent to the breeding season (September to November) a total of 45 bird species was recorded on "arable habitat" areas. Predators and granivorous species showed comperatively high presences and totals of records on programme sites. Compared to reference sites, "arable habitat"-areas hold significantly more species during the post-breeding season. However, no differences in totals of bird records could be verified between area pairs, which was largely caused by single observations of larger flocks of birds on already cultivated reference sites. Raptors, mainly Kestrels and Common Buzzards, where recorded more frequently at "arable habitat" areas during the breeding and post-breeding period.The results of the efficiency control proof that the agro-environmental scheme "arable habitats" is qualified to implement European and federal objectives in protection of biodiversity and birds. To turn back negative population trends of farmland birds, however, a distinct enlargement of appropriate fallow areas as well as further (agricultural political) measures are essential.

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