Studium malakocenóz lomů na těšínit

Abstract

This diploma work deals with researching molluscs desolated quarries in Tesinit, which are occuring in the Těšín region. The rock of tesinit is where molluscs tend to ocurr because of its mineralogical structure. Molluscs need at least a minimum of accessible calcium for their existance which helps them to build-up their shells. Tesinit contains this amount of calcium. The existence of these querries influences our area as a refugium, or refuge for many different kinds of animals. These types of molluscs that were found are indicating haleness of these habitats in anthropogenicly transformed locality, and its significance as a refugium.