AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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Autori: VOICHIȚA GHEOCA.
Part of the southern branch of Eastern Carpathians, the Ciucaș Mountains have a substratum of Cretaceous limestones, gravel and rounded blocks of crystalline schists, gneiss, limestone, sandstone, caught in a limestone matrix. This paper analyses the land snail fauna of deciduous and mixed forests, a habitat type where the geological substrate is completed with favourable humidity conditions that allow the development of specific land snail communities. In the research area a 55 species of terrestrial gastropods were identified. Zonitoides nitidus, Mastus venerabilis, Faustina faustina, Balea fallax and Bulgarica cana prevail in the communities, being abundant in most sampling sites. Other species such as Balea stabilis and Monachoides incarnatus develop large populations and reach high values of relative abundances in spite of their low frequency. The European interest species Drobacia banatica was identified in five of the ten sampling sites. This species is in the Ciucaș Mountains at the eastern limit of its distribution. One of the two species of the genus Alopia known as being present in the area was also found, represented by two subspecies, Alopia nefasta nefasta and Alopia nefasta helenae.
Keywords: biodiversity, the Ciucaș Mountains, communities, limestone, snails.
