The study was conducted based on materials collected in the area during the years 2015-2021. 28 species of mammals were identified. 4 species are included in the Red Book of the Republic of Moldova. The value of the margin effect index in the meadow biotope is 0.12, and in the forest one - 0.32. The share of rodents according to the predilection for the biotope is for the meadow -21.4%, ecotone - 35.4% and forest 43.2%. During the spring the values of the Simpson index in the studied biotopes are for meadow 0.23, ecoton - 0.35 and forest 0.29, and in the autumn period, there was a considerable increase of this index, the diversity being respectively 0.58; 0.81; 0.73. A decrease in the mammalian diversity index has been established over the last 10 years from 1.67 to 1.36. Due to the dangers and unfavorable factors for the reservation, it is necessary to mention the cutting of the secular forests, the poaching, the cutting of the scurvy trees, the clearing of the forest edge, the destruction of the vegetal agglomerations. Excessive grazing will significantly damage the maintenance of stateprotected species. The protection of various species of rare plants and animals taken under the protection of the state is related to the maintenance and limitation of the management activities of the forest and steppe sectors. The ”Carbuna” landscape reserve is of particular importance for the conservation of biological diversity, and measures to protect its habitats need to be intensified.

The study was conducted between 2013 and 2022 in Saharna limestone mines. 9 bat species from two families (Rhinolophidae and Vespertilionidae) were registered. The highest number of individuals was recorded at the end of September, as well as in the middle of hibernation period, and the lowest number was registered in April, after the end of hibernation period. The diversity of species was rather high, being registered 7-9 species in various periods. The structure of bat community was different depending on the season and year of study. Between 2013-2020 the dominant species was Eptesicus serotinus, while in 2021-2022 – Rhinolophus hipposideros. For the whole study period, the most numerous bats were E. serotinus and R. hipposideros that constituted more than 73% of bat community, followed by Myotis daubentonii with about 10% and M. blythii with 7%, other species registered a lower percent, including the critically endangered species Barbastella barbastellus (4%). The dynamics of endangered species Myotis dasycneme showed a negative trend. At the end of June 2022 for the first time, a maternity colony of about 200 pregnant R. hipposideros females was registered. All species recorded in Saharna mines are protected at national and European level. The abandoned stone mines from Saharna represent one of the most important roost for bat hibernation and reproduction.

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