其他摘要：Within bioindication, molluscs have strong explanatory power due to close relation to conditions of environment. They are also considered as a suitable group for assessment of environmental changes and habitat disturbance level. Various habitat types with different level of disturbance were subject of the interest in the Bachureň Mts. Field work was conducted in the years 2010–2011 at 57 sites. Altogether 105 mollusc species were recorded. In order to evaluate level of habitat disturbance, only relict, sensitive (forest and wetland) and synanthropic species were selected and analysed. On the basis of spatial distribution of sensitive species indicating undisturbance of habitats, the most valuable biotopes showed to be springs, wetlands and riparian vegetation along the upper parts of the streams with Acicula parcelineata (Clessin, 1911), Bulgarica cana (Held, 1836), Macrogastra latestriata (A. Schmidt, 1857), Vertigo angustior Jeffreys, 1830, V. antivertigo (Draparnaud, 1801), V. substriata (Jeffreys, 1833) and Cochlicopa nitens (M. von Gallenstein, 1848). Valuable biotopes were dolomite rocks with the occurrence of relict steppe Pupilla triplicata (Studer, 1820) and well–preserved scree woodlands with V. substriata and B. cana as well. On the other hand, settlements and areas close to settlements (e.g. riparian vegetation along the lower parts of the streams, forest parks) are inhabited by synanthropic species – Arion distinctus Mabille, 1868, A. lusitanicus J. Mabille, 1868, Oxychilus draparnaudi (Beck, 1837), Cecilioides acicula (O. F. Müller, 1774) and Xerolenta obvia (Menke, 1828).
