La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Are woodpeckers "good" indicators of ecological conditions in forest?
Auteurs :	Wolfgang Scherzinger, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (119(1) 1998)
Article en page(s) :	1-6
Résumé :	Density and population trends of specialized woodpeckers are expected to reflect current habitat quality of forests and woodlands, e.g. amount of old growth, dead wood, tree species diversity and structural diversity. I investigated whether this expectation was met prior to and during a major bark beetle outbreak in the Bavarian Forest National Park. Surveys from 1974-1977 showed distinct habitat-related concentrations of woodpecker diversity (seven species) in this mountainous forest. Woodpecker diversity correlated with tree species diversity as well as with age of trees. These results indicated that woodpeckers are 'good' indicators of certain habitat characteristics. Woodpecker numbers on an

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