The communities of land snails in black alder forests of Belarussian Lakeland
The article gives the information about specific composition and abundance of land snail communities of different types of black alder forest of Belorussian Lakeland. Total in black alder forest of Belorussian Lakeland 43 species of land snails are revealed. Least of all species are found in Glutinoso-Alnetum salocosum, Glutinoso-Alnetum phragmitoso-filipendulosum and Glutinoso-Alnetum thelypteridosum types. These biotopes are overwatered or have a significant variation of moisture level. The most speciesare found in Tilieto-Glutinoso-Alnetum coryloso-aegopodiosum, Glutinoso-Alnetum urticoso-aegopodiosum, Piceeto-Glutinoso-Alnetum-aegopodiosum, Glutinoso-Alnetum aliumoso-urticosum types of black alder forests with moderate moisture level. The results of cluster analysis divide the studied communities into 2 cluster groups.