Article

Article name HABITAT CONDITIONS OF DESMANA MOSCHATA (TALPIDAE, EULIPOTYPHLA, MAMMALIA) IN THE BUFFER ZONE OF THE PRISURSKIY STATE NATURE RESERVE (RUSSIA)
Authors

Marina V. Rutovskaya, Dr.Sc., Senior Researcher at the A.N. Severtsov Institute of Ecology and Evolution of RAS (Russia, 119071, Moscow, Leninsky Prospect, 33); e-mail: desmana@yandex.ru
Alexander N. Aleksandrov, Researcher of the State Nature Reserve «Prisursky» (Russia, 428034, Cheboksary, settlement Lesnoy, 9); e-mail: fktrcfyl.87@mail.ru
Valentina N. Podshivalina, PhD, Leading Researcher of the State Nature Reserve «Prisursky» (Russia, 428034, Cheboksary, settlement Lesnoy, 9); Associate Professor, Senior Lecturer of the Department of Zoology and Ecology in the I.N. Ulyanova Chuvash State University (Russia, 428034, Chuvash Republic, Cheboksary, Universitetskaya Street, 38); e-mail: verde@mail.ru
Alena S. Soboleva, Student of the Russian State Agrarian University - Moscow Timiryazev Agricultural Academy (Russia, 127550, Moscow, Timiryazevskaya Street, 49); Junior Researcher at the A.N. Severtsov Institute of Ecology and Evolution of RAS (Russia, 119071, Moscow, Leninsky Prospect, 33); e-mail: foxarrs@gmail.com
Oleg V. Glushenkov, PhD, Leading Researcher of the State Natural Reserve «Prisursky» (Russia, 428034, Cheboksary, settlement Lesnoy, 9); Leading Researcher of the Chavash Varmane National Park (Russia, 429170, Chuvash Republic, settlement Shemursha, Kosmovskogo Street, 37); e-mail: totem-ardea63@yandex.ru

Reference to article

Rutovskaya M.V., Aleksandrov A.N., Podshivalina V.N., Soboleva A.S., Glushenkov O.V. 2020. Habitat conditions of Desmana moschata (Talpidae, Eulipotyphla, Mammalia) in the buffer zone of the Prisurskiy State Nature Reserve (Russia). Nature Conservation Research 5(2): 36–46. https://dx.doi.org/10.24189/ncr.2020.011

Section Research articles
DOI https://dx.doi.org/10.24189/ncr.2020.011
Abstract

The study of bathymetry, macrozoobenthos abundance and the Russian desman population has been performed in the water bodies located in the Prisurskiy State Nature Reserve buffer zone (River Sura lower reaches floodplain). Twenty-one water bodies were examined in total. In six lakes, Desmana moschata (Russian desman) was absent. In nine lakes, the settlement density was less than 5 burrows per 1 km coastline. And in six lakes, the settlement density was high (i.e. more than 5 burrows per 1 km). The studied parameters of the lake basin included the depth of the lake, the water acidity (pH), dissolved oxygen concentration, the type of the plant cover of the shoreline (forest, shrub, steppe), and anthropogenic load. The taxonomical analysis and individual weighing of the animals in the macrozoobenthos samples were performed. All the parameters were then included to an analysis of the Russian desman density. The factors affecting the density of the Russian desman burrows were revealed. The water bodies having more than five burrows per 1 km along the shoreline are characterised by a higher abundance of macrozoobenthos and especially by the highest mollusk biomass. In turn, the abundance of mollusks, the main food, depends on the dissolved oxygen concentration in the water, trophic state of the lake, and the bottom slope. The highest density of the Russian desman was registered in the lakes characterised by a high biomass of the gastropods Lymnaea stagnalis and Viviparus (Contectiana) contecta. It was noticed that the Russian desman preferred to inhabit wide-course water bodies characterised by a high density of trees or bush along the shoreline. Therefore, the factors mentioned above may appear as the indirect characteristics of the water body with optimal habitat conditions for the Russian desman. Other water body characteristics, such as depth, may define the temporary optimum conditions for the Russian desman inhabiting. The combination of different conditions in a certain area allows the Russian desman to choose suitable water bodies, depending on the annual climatic conditions. There is a combination of a steppe (meadow) and forest areas in the River Sura lower reaches floodplain. Thus, this floodplain may be named as the most suitable for the Russian desman inhabitance.

Keywords

floodplain, fodder base, habitat preference, macrozoobenthos, Russian desman, River Sura lower reaches

Artice information

Received: 29.06.2019. Revised: 20.11.2019. Accepted: 22.02.2020.

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