La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	46 years of breeding Greylag Geese Anser anser in the Nature Conservation Area "Kuhlrader Moor and Roeggeliner See", Mecklenburg-Vorpommern, Northern Germany
Auteurs :	Peter Hauff, Auteur ; Peter Illmann, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (120(4) 1999)
Article en page(s) :	231-235
Résumé :	Beginning in 1949, yearly censuses of breeding Greylag Geese were conducted until 1994 by counting the clutches. During the mid-seventies and later the carrying capacity of the area (ca. 260 ha) appeared to be about 130 pairs. The geese bred at the lake as well as in the fen ("Moor"). About 50 % of the pairs concentrated on a small island in the lake. This island became a breeding colony of Cormorants Phalacrocorax carbo from 1992 onwards, which caused the geese to abandon it; in 1999 there were only 3 to 4 goose pairs left here. The reason for the high goose density appears to be the grazing area (cattle) around the lake. Those goose pairs breeding in the fen move with their young to these feeding grounds. We recommend to the responsible administration (Biosphere reserve "Schaalsee") to carry on with the goose monitoring.

Lundi , mardi et jeudi de 9h à 12h et de 13h à 17h00 : ouverture au public ...