Abstract

The analysis of all data on the number and distribution of small mammals in Western Siberia over the past 120 years has established that 20 out of 28 species recorded in the northern taiga make up their communities. A similar structure of dominance is generally preserved in the small mammal communities of the northern taiga. The main dominant species, northern red-backed vole, Laxmann’s shrew, and the common shrew, predominate almost everywhere. The other six codominant species (Eurasian pygmy shrew and tundra shrew and voles: root vole, common European field vole, European bank vole, and gray red-backed vole) dominate only in certain areas. The remaining 11 species, which are both widely and narrowly distributed, make up a small part of the communities. The increase in the species richness of communities to the east (from 15 to 19 species) is determined by the increase in the number of Siberian species. In general, in the studied area of the northern taiga, the largest contribution to small mammal communities is made by representatives of the Siberian fauna type, with the exception of the western part of the subzone, where European species predominate.

中文翻译：

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西西伯利亚北部针叶林小哺乳动物的地理生态学分析

摘要

对过去120年来西西伯利亚小哺乳动物数量和分布的所有数据进行的分析表明，在北部针叶林中记录的28种物种中，有20种组成了它们的群落。北部针叶林的小型哺乳动物群落通常保留着类似的优势结构。主要优势种，北部红背田鼠，拉克斯曼mann和普通sh几乎在所有地方都占主导地位。其他六个优势种（欧亚侏儒sh和苔原sh和田鼠：根田鼠，普通欧洲田鼠，欧洲河岸田鼠和灰背红田鼠）仅在某些地区占主导地位。其余11种广泛分布和狭窄分布的物种仅占社区的一小部分。东部社区的物种丰富度增加（从15种增加到19种）取决于西伯利亚物种的数量增加。一般而言，在北针叶林的研究区中，西伯利亚动物区系类型的代表对小型哺乳动物群落的贡献最大，但次区域的西部除外，该区域以欧洲物种为主。