EN
The paper summarizes fieldwork which was carried out on the proposed Natura 2000 area called Ostoja nad Bobrem, located in the south-west of Poland. The research confirmed the presence of natural habitats appearing in Annex I to the Habitat Directive. Among them there are particularly important priority habitats such as: species-rich Nardus grasslands on siliceous substrates in mountain areas (and submountain areas in Continental Europe *6230), Tilio-Acerion forests on slopes screes and ravines (*9180) and alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae *91E0).