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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	The situation of birds of prey and owls in Germany in the years 1995-1998
Auteurs :	Ubbo Mammen, Auteur ; Michael Stubbe, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (121(4) 2000)
Article en page(s) :	207-215
Résumé :	The monitoring project 'Raptors and Owls of Europe' initiated in 1998 publishes an annual report on the situation of raptors and owls in Central Europe. The present paper summarizes the results of the years 1995-98 for Germany and is supplemented by most recent literature. The available data were sufficient for analysis in 25 species; only the situation of Hen Harrier and Short-eared Owl could not be assessed. The population trends of 15 species are illustrated. Compared to the index year 1993, population sizes in 1998 were higher in four species (Buzzard, Sparrowhawk, Black Kite, Little Owl) and lower in seven species (Red Kite, Honey Buzzard, Marsh Harrier, Hobby, Barn Owl, Long-eared Owl, Tengmalm's Owl). Three species showed about the same population levels as in 1993 (Goshawk, Kestrel, Tawny Owl). The populations of Osprey, Peregrine Falcon, and Eagle Owl have also increased (not illustrated). Reproductive output in German reference study areas was assessed using the three periods 1987-90, 1991-94, and 1995-98. The species differed considerably in annual reproductive output (table 4): It increased steadily over the three periods in White-tailed eagle, Peregrine Falcon, Long-eared Owl, and Tengmalm's Owl, but showed the opposite trend in Buzzard, Montague's Harrier, Eagle Owl, and Long-eared Owl. Several species showed a decrease in output from the first to the second period, but a slight increase from the second to the third (Marsh Harrier, Black Kite, Red Kite).

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