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1 Polish Journal of Ecology

1 2000

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Population dynamics of the bank vole (Clethrionomys glareolus Schreb.) in west Siberia

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Moshkin M. , Dobrotvorsky A. , Novikov E. , Panov V. , Ilyaschenko V. , Onishenko S. , Sergeev V.

Polish Journal of Ecology

2000

tom Vol. 48, Suppl.

107-112

Multi-annual dynamics and population structure of the bank vole in three localities of southern West Siberia is analyzed. Relative abundance of voles tended to decrease towards the perphery of the range. The summer abundance correlated significantly with certain weather parameters of previous winter or spring season. No correlation between maturation rates in youngs-of-the-year and density was observed. Population dynamics of the bank vole in southern West Siberia is governed primarily by environmental factors. This is due to non-optimal climatic conditions on the periphery of the species range causing high winter morality and ultimately, maintaining low level of density on which self-regulatory mechanisms are not involved.