Ecology of the Tundra Vole (Microtus oeconomus Pallas, 1778) in Biogeocenosis of Taiga-and-alas Ecosystems of Central Yakutia
The article presents the results of research of ecology of a tundra vole in typical alas-and-lake landscapes of Lena-Amiginsky interstream area where human economic activities change natural animal sites. The influence of the anthropogenous factor on the nature of the Central Yakut lowland, recently, increases owing to its reinforced economic development. It is found that the habitation of this rodent is strictly related to inundable grassy mosaic habitat, which is often stretched out in the form of narrow strips along water bodies. The food ration of a vole reflects the floristic composition of their typical biotypes. The growth of the average amount of a vole’s brood is an adaptive reaction to unfavorable existence conditions. The sex-age structure consists of two weight groups - overwintered voles and fingerlings. It fully renews throughout the year.