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pro vyhledávání: '"Dryocopus martiu"'
Autor:
Andrea R. Pirovano, Giovanni Zecca
Publikováno v:
Bird Conservation International. 24:299-315
SummaryThe Black Woodpecker Dryocopus martius is the largest woodpecker of the Palearctic Region and it has been recognised as a keystone species whose presence provides critical resources to secondary cavity-users in European forest ecosystems. Here