Abstract
The study of collembolan communities from the Vîşcăuți canyon in Moldova revealed 63 species belonging to 41 genera and 12 families, including four species new for the fauna of the Republic of Moldova. A checklist of collembolan species identified in the five calcareous canyons sampled so far in Moldova is included, with data on habitats, life form, occurrence and comments of distribution of most remarkable species. Of the 98 recognized species of these calcareous canyons, only 38 were shared by Vîşcăuți and the other canyons. The richness of calcareous habitats together with the high heterogeneity in faunal composition suggests that further significant increase in the species richness of the region may be expected.
Highlights
Republic of Moldova has a rather small territory (33,760 km2) but its heterogeneous natural conditions and its geographical position contributed to the formation of diverse types of soils, supporting high diversity of flora and fauna.The largest river in the country is the Dniester
The samples were taken in a calcareous canyon near the locality of Vîşcăuți situated close to the Dniester River in the central part of Moldova (47°43'N, 29°07'E, altitude 52 m)
The present research increases the number of Collembola species revealed from the calcareous canyons of the Republic of Moldova from 57 to 98, which belong to 49 genera and 15 families
Summary
The largest river in the country is the Dniester. The Dniester riverbed is sinuous in its upper course penetrating calcareous formations that emerge to the ground surface as cliffs and rocky banks. Along the course of water, petrophyte ecosystems are common and occupy a surface of 23 000 ha, being formed on the submarine coral reefs of Sarmatian Sea, emerged more than 10 million years ago
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