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Article
A. Carlson, Auteur ; U. Sandstrom, Auteur ; K. Olsson, AuteurDans Ardea (86(1) 1998)Cavities in trees are an important resource as nest sites or shelter for many birds and mammals. The aim of this study was to quantify the density of cavities, their characteristics, and their origin, and the implication these have on nest site [...]
Article
A. Carlson, AuteurDuring the last decades the White-backed Woodpecker has shown a precipitous decline in many regions of the western Palearctic, In this study I ask whether detoriation of the forest breeding habitat might have contributed to this population decli[...]
