La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Occurrence and population sizes of rare and scarce breeding birds in Germany 1995/1996
Auteurs :	Wolfgang Maedlow, Auteur ; Norbert Model, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (121(4) 2000)
Article en page(s) :	189-205
Résumé :	The population sizes of 75 rare or scarce breeding bird species in Germany in the years 1995 and 1996 are presented (table 1). The data are the result of a survey carried out by the ornithological organisations and nature conservation agencies of the German federal states. They concern species with less than 1,000 breeding pairs in Germany (as far as recent population data exist) and some other rare species (especially colonial breeders). Nine of the 75 species breed only occasionally in Germany. Of 56 species with known population trends between 1990 and 1996, 18 showed no significant change, 31 increased and seven decreased (table 2). The positive trends, on the one hand, resulted from intensive management protection projects, on the other hand some species, which in Germany reach the limits of their breeding range, recently expanded their range or stabilised their breeding populations. Since the early 1980's, 11 new breeding species have colonized Germany, whereas in the same period three species disappeared. The situation in Germany or in large regions of Germany is particularly critical for Hen Harrier, Black Grouse, Great Bustard, Kentish Plover, Dunlin, Ruff, Aquatic Warbler and Woodchat Shrike.

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