La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	The decline of the Eurasian Sparrowhawk Accipiter nisus on the SW Veluwe: Caused by predation or food shortage?
Auteurs :	Arnold van den Burg, Auteur
Type de document :	Article
Dans :	Limosa (75(4) 2002)
Article en page(s) :	159-168
Résumé :	During the last decade, the Eurasian Sparrowhawk population of the Veluwe, the largest continuous woodland area of The Netherlands, has declined by 50%. One hypothesis is that this was caused by a decrease in food supply for Northern Goshawks A. gentilis which caused a higher predation pressure of Northern Goshawks on Eurasian Sparrowhawks. However, it is also possible that food availability for Northern Goshawks and Eurasian Sparrowhawks co-vary, which may also lead to a reduction in Eurasian Sparrowhawk numbers. The present paper analyses these two possible causes based on data from 1991-2000, collected on the

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