Email this article Association of small mammal’s spatial distribution and vegetation cover structure (on the example of Pustyn closed wood, Nizhny Novgorod Region)
- Authors: Boryakova E.E.1
-
Affiliations:
- National Research Lobachevsky State University of Nizhny Novgorod
- Issue: Vol 8, No 2 (2019)
- Pages: 13-18
- Section: 03.02.00 – General Biology
- URL: https://bakhtiniada.ru/2309-4370/article/view/34290
- DOI: https://doi.org/10.17816/snv201982102
- ID: 34290
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Abstract
The following paper deals with the problem of spatial distribution of mouse-like rodents in connection with a vegetable cover character. Small mammals are studied as components of the whole system - biocenosis. The investigation was carried out during the summer of 2016 in the landscape protected area Pustyn located in the province of Nizhny Novgorod, Volga Upland. 6 sample plots were set up in different forest types. Micromammalia were trapped using a traditional method, over standard sample plots (20 × 20 m) in a random order. 226 animals were caught, they turned out to belong to 2 genera and 3 species: Cletrionomys glareolus Schreber, Apodemus flavicollis Melchior, Apodemus uralensis Pallas. Statistical analysis was fulfilled using Statistica 6.0 software suite. We used a nonparametric Spearman method for calculation of correlations. The Principal Component Analysis (PCA) was used for detection of groups of similar objects, to reduce the number of dimensions and for visualization of the results. Positive and negative correlation dependences between the number of micromammalia and abundance of separate species of plants are revealed. The PCA analysis has shown that there is a significant factor for spatial distribution of small mammals, which is positively connected with nitrogen-loving plants. Rodents generally prefer places where projective cover degree of vegetation makes about 60%. This value is possibly optimum for movement and holes digging; the shortage of food is possible when the covering indicators are smaller and the density of animal’s population is big. The bank vole shows ecological plasticity in the choice of habitats more than mice. Based on results of our research, it is possible to conclude that heterogeneity of a vegetation cover has an influence on spatial structure of micromammalia communities.
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##article.viewOnOriginalSite##About the authors
Elena Evgenievna Boryakova
National Research Lobachevsky State University of Nizhny Novgorod
Author for correspondence.
Email: boryakova@mail.ru
candidate of biological sciences, associate professor of Botany and Zoology Department
Russian Federation, Nizhni NovgorodReferences
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