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La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	The situation of raptors and owls in Germany 1999-2002.
Auteurs :	Ubbo Mammen, Auteur ; Michael Stubbe, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (126(1) 2005)
Article en page(s) :	53-65
Résumé :	Based on the research project,,monitoring of raptors and owls in Europe" and relevant literature, the situation of the breeding populations of 26 raptor and owl species in the years 1999-2002 is summarized. Trends and fluctuations of population sizes are available either from 1988 onwards (14 species), from 1990 onwards (four species) or from from 1992 onwards (one species). No trend was obvious in three species (Lesser Spotted Eagle, Goshawk, Hobby) with changes in population sizes below 20%. Positive trends were observed in ten species (Common Buzzard, Sparrowhawk, Black Kite, White-tailed Eagle, Montagu's Harrier, Osprey, Kestrel, Barn Owl, Eagle Owl, Little Owl), but six species decreased (Red Kite, Honey Buzzard, Marsh Harrier, Tawny Owl, Long-eared Owl, Tengmalm's Owl). An increase was noted also in the Peregrine Falcon, for which the well-known total population size is considered rather than monitoring data from study plots. Range expansion is reported for Pygmy Owl. Regarding population size (Long-eared Owl, Common Buzzard, Goshawk, Tengmalm's Owl) and parameters of reproductive success (Common Buzzard, Barn Owl, Little Owl, Tawny Owl, Tengmalm's Owl) in the period 1999-2002, several species showed above average values in 1999 and 2001, but quite low values in 2000 and 2002.

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