Ekologicko-faunistická charakteristika suchozemských plžů (Gastropoda) vybraných hradů Slezska

Abstract

This work deals with ecological-faunistic characteristics of terrestrial molluscs (Mollusca) on selected ruins of castles in Silesia. The main concern of this work was to become familiar with the biology and ecology of terrestrial gastropods, and data collection methods and determination. In the literary part describes the general characteristics of a system of farming, also describes the basic ecological factors that influence the composition of the snail. Another chapter is about the physical-geographical characteristics of the territory. As a model for the purpose of this study were chosen four ruins - Edelstejn, Kaltenstejn, Koberstejn and ruins Rychleby. In scientific part are the results of a survey of all malacozoological ruins on the various castles and also on the basis of similarity indices. Interesting species were found, such as Cochlodina orthostoma, Ena montana, Discus rotundatus etc. One species found is categorized as vulnerable - Clausilia crutiata. Other species found belongs to the category of Least Concern, and nearly threatened.