Breeding density and nest site selection in a GoshawkAccipiter gentilispopulation of the Central Apennines (Abruzzo, Italy)

摘要: Information on forest vegetation structure immediately around a Goshawk's nest can indicate the minimum stand surface necessary to be conserved or created favour Goshawk settlement and help solve potential conflicts between timber harvest maintenance of viable population. In order gain greater insight into this species contribute correct policy for managing forests, site characteristics were examined at three levels scale (nest/nest trees level, landscape level). The breeding density recorded in study area is 5.03 sites/100 km2. nests found north- east-facing slopes central part tree canopy. average values crown height diameter breast (dbh) higher than corresponding plots. dbh, height, trunk without branches, length, breadth, basal area, volume, distance ...