The malacofauna of dumps of the soda factory in Cracow

On the dumps of lie Cracow Soda Factory llere occur molluscM assemblqes comprisiftt 13 taxons. The assemblages display a succession connected with three phases in lhe development of vegetation. which occurred wilen the slopes of the dumps were getting overgrown. The succession phases correspond to the assemblage with ~ ._. lie assenmt.ge with Pqp6and lhe assemblage will ~-'""• respectively. A Wometrlcal -.lysis of populalons of 7 snail species has shown that lie populatlons do not differ from those oecunlnt In natural hllbltats. The diMrslty of the assemblages Is very high: xerophilous and hygrophilous species can be found together In one assemblage.