Russian Journal of Ecology

, Volume 38, Issue 4, pp 262–270 | Cite as

Mechanisms of changes in population numbers of Caucasian red deer (Cervus elaphus maral) in the northwestern Caucasus

  • S. A. Trepet
  • T. G. Eskina
Article

Abstract

Mechanisms of changes in the numbers of red deer in the Caucasian State Biosphere Reserve (the northwestern Caucasus) were studied from 1958 to 2004 using simulation models developed on the basis of concepts concerning the combined effect of density-dependent and density-independent factors. The results show that changes in population numbers are accounted for by larger (more numerous) local subunits, with small groups remaining relatively stable. In the periods of depression, such a mechanism provides for the maintenance of the spatial population structure.

Key words

spatial structure mechanism of changes in animal numbers density-dependent factors density-independent factors local subunits simulation model 

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Copyright information

© Pleiades Publishing, Ltd. 2007

Authors and Affiliations

  • S. A. Trepet
    • 1
  • T. G. Eskina
    • 1
  1. 1.Caucasian State Biosphere ReserveMaikopRussia

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