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Contemporary Problems of Ecology

2022 year, number 1

Influence of climate warming on terrestrial species of the middle Yenisei taiga

B. I. Sheftel, V. D. Yakushov
A. N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences, Moscow, Russia
Keywords: climate warming, small mammals, population dynamics, taiga tick, amphibians, reptiles

Abstract

The relationship between climate warming and processes occurring in communities and populations of terrestrial small mammals, reptiles, amphibians, and arthropods is considered. The studies were conduct-ed at the Yenisei ecological station “Mirnoe” of the A. N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences. The dynamics of climatic changes are shown on the basis of data from seven weather stations located along an almost thousand-kilometer stretch of the Yenisei River valley. The maximum temperature increase for the period from 1972 to 2020 was noted in the spring months, and the more northern the station is, the stronger these changes are manifested. In the XXI century cyclic type of small mammal population dynamics, which was noted for this area earlier, changed to fluctuating one. The number of small mammals in tenth century was lower than in XX century. At the same time, a significant decrease was noted mainly for species whose origin is connected with Siberia. Some new species were recorded for the first time in the territory of the Yenisei ecological station. The banc vole (<i>Clethrionomys glareolus</i>) and the taiga mite (<i>Ixodes persulcatus</i>) appeared on the right bank of the Yenisei, and the gray toad (<i>Bufo bufo</i>) appeared on both banks.