La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Ecology of feral American mink Mustela vison in Sachsen-Anhalt (Germany).
Auteurs :	Jana Zschille, Auteur ; Dietrich Heidecke, Auteur ; Michael Stubbe, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (126(4) 2005)
Article en page(s) :	379-380
Résumé :	A questionnaire was handed out to various persons concerned in order to locate the current range of feral Mink in Saxony-Anhalt. As the established distribution map shows, the Mink could be recorded mainly in floodplains in the eastern part of Saxony-Anhalt (Elbe and Mulde rivers) and in the Helme-Unstrut region. These results confirm the preference of wetland habitats. The delayed colonisation of the regions of Altmark, Harz and Harzvorland is probably caused I by suboptimal habitats, which are poor in inland waters. Nevertheless, even in those areas a colonisation of natural lakes and rivers can be expected within the next years. The examination of stomachs of 113 Minks that were caught or found dead revealed fish, small mammals and birds as the main prey groups, with amphibians, insects, crustaceans and molluscs playing a secondary role in the diet. Indications for strong negative impact of feral Mink on native prey populations could not be found. However, other studies indicate a possible negative effect especially on colonial waterbirds.

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