Tourism, mountain huts and distribution of corvids in the Bavarian Alps, Germany

摘要: Anthropogenic resources related to recreational activities and tourism infrastructure may greatly affect wildlife species in the Alps. In this paper, we explore effects of mountain Bavarian Alps, Germany, on spatio-temporal distribution corvids post-fledging period summer autumn. We contrast corvid point-counts surroundings 28 popular huts (hut areas) with those 22 similar areas rarely visited by humans (control areas). Carrion crows Corvus corone magpies Pica pica were exclusively observed at huts, jays Garrulus glarularius occurred more hut than controls. Alpine choughs Pyrrhocorax graculus, nutcrackers Nucifraga caryocatactes numerous control areas. Ravens corax equally common, but like choughs, they spent time foraging Multivariate analyses confirmed that incidence was significantly tourist use. However, regardless actual numbers present. Our results suggest opportunistically adjust their range use availability offered tourism. Mountain other places frequented thus contribute an increased carrying capacity for higher elevations. This have major ramifications prey upon or compete with. Alps conflict conservation efforts threatened such as grouse (Tetraonidae).