Dynamics of the Abundance and Community Structure of Small Mammals in the Saratov Trans-Volga Region
- Authors: Tsvetkova A.A.1, Oparin M.L.1
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Affiliations:
- Severtsov Institute of Ecology and Evolution
- Issue: Vol 44, No 10 (2017)
- Pages: 1316-1323
- Section: Article
- URL: https://journals.rcsi.science/1062-3590/article/view/182694
- DOI: https://doi.org/10.1134/S106235901710017X
- ID: 182694
Cite item
Abstract
A typical feature of the populations of small mammals in different areas of the Saratov Trans-Volga region is the long-term and constantly increasing abundance of Sylvaemus uralensis and its wide distribution in a variety of habitats. The maximal abundance of S. uralensis is 72.0 individuals per 100 trap-days, and its share in catches is 73.0%. The abundance of Microtus arvalis tends to increase. It was shown that Lagurus lagurus has been found again in the steppe zone, on fallow lands and fields, after a prolonged depression in 2012–2013, the average density of species being 4.0 individuals per 100 trap-days. A high abundance of other typical steppe inhabitants (Allocricetulus eversmanni and Ellobius talpinus) was noted as well. The highest indices of species diversity (H = 1.18) are typical of fallow lands.
Keywords
About the authors
A. A. Tsvetkova
Severtsov Institute of Ecology and Evolution
Author for correspondence.
Email: aatsv@mail.ru
Russian Federation, Saratov, 410028
M. L. Oparin
Severtsov Institute of Ecology and Evolution
Email: aatsv@mail.ru
Russian Federation, Saratov, 410028