Biodiversity of terrestrial molluscs in urbophytocoenoses of Vilnius,capital of Lithuania

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Biodiversity of terrestrial molluscs in urbophytocoenoses of Vilnius,capital of Lithuania

Description

Abstract: A total of 6941 terrestrial molluscs of 50 species, belonging to 16 families were foundduring 2006 May-October in three urbophytocoenoses of parks of Vilnius and 27 species of 12families are known as the most important pest Gastropods according to D. Godan (1983). Twospecies were new for the Lithuanian fauna – Oxychilus draparnaudi (Beck, 1837) and Oxychilusalliarius (Miller, 1822) – and these species are known in Europe as pest Gastropods, too. Themost abundant (eudominant) species were: Vallonia costata (O. F. Müller, 1774), Succinea putris(Linnaeus, 1758), Vitrina pellucida (O. F. Müller, 1774), Nesovitrea hammonis (Ström, 1765),Xerolenta obvia (Menke, 1828), Trichia hispida (Linnaeus, 1758), Arianta arbustorum(Linnaeus, 1758), Laciniaria plicata (Draparnaud, 1801). Diversity of molluscs in parks of thebiggest city of Lithuania is the same as the number of species in Natural National park in Latvia –50-51 species. Ability of Clausiliidae (8 species), Vertiginidae (6 sp.) and Pupillidae (1 sp.)shows that environment conditions are quite tolerable for the diversity of land molluscs community.

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