Abstract:The presented paper reports data from malacological and pedological studies carried out at sites representing diverse biotopes (beech wood, coniferous forest, and meadow) located 2 km away from the Dyckerhoff Cement Plant in Sitkówka-Nowiny in 1992 and in [2008][2009]. The studies aimed to determine physicochemical properties of soils exposed to cement and limestone dust emission and to identify composition of snail communities inhabiting three different biotopes in relation to physicochemical properties of soils, and to grasp the dynamics of the alkalization-dependent changes in physicochemical properties of soils and their impact on the composition and ecological structure of malacofauna.

J a d w i g a B a r g a -W i ę c ł a w s k a The o ccu rren ce o f a rare sn ail H elic ig o n a la p ic id a ( L in n a e u s , 1758) (G a s tr o p o d a , H e lic id a e ) in th e Ś w iętok rzysk ie M ountains [With 2 figures] A bstract: T he p o p u latio n of th e v u ln erab le sp ecies of sn ail Helicigona lapicida ( L i n n a e u s , 1758) (V) w a s.fo u n d in B obrza, in th e n o rth -w e ste rn p a rt of th e Holy C ro ss Mts. The sp ecies in h a b its ru in s ol a high c la ss m o n u m e n t of m etallurgy in d u s try by th e B obrza river. T his locality is s itu a ted a t th e e a ste rn p a rt of th e species range. K ey w ords: sn ail, v u ln erab le species, new locality, en v iro n m en t of ru in s, The Św iętokrzyskie M o u n tain s, Poland

The author recorded the occurrence of Helix lutescens Rossmässler, 1837 on five localities within the Holy Cross Mountains National Park and its protective zone, and on three localities in the city of Kielce. The presence of H. lutescens on the eight localities does not permit to establish its real origin, though the author suggests that in those particular habitats the species may be a postglacial or Late Holocene relict.

In the paper, the author describes the occurrence of snails on the dumps of the Ostrówka and Ołowianka quarries, which was studied quantitatively by means of a biocenometer. The four localities in question differ between each other in succession level. Three snail species have been found: Helicella obvia (Menke, 1828), Bradybaena fruticum (O. F. Müller, 1774) and Cepaea vindobonensis (Ferussac, 1821). The author pays attention to the succession of the snails on the described dumps.