Biology Bulletin

, Volume 37, Issue 5, pp 532–536

Dynamics of colonies of the speckled ground squirrel (Spermophilus suslicus Guld., 1770) on the northern boundary of the habitat

Authors

    • Severtsov Institute of Ecology and EvolutionRussian Academy of Sciences
  • V. V. Neronov
    • Severtsov Institute of Ecology and EvolutionRussian Academy of Sciences
  • O. N. Shekarova
    • Severtsov Institute of Ecology and EvolutionRussian Academy of Sciences
  • L. E. Savinetskaya
    • Severtsov Institute of Ecology and EvolutionRussian Academy of Sciences
Ecology

DOI: 10.1134/S1062359010050134

Cite this article as:
Shilova, S.A., Neronov, V.V., Shekarova, O.N. et al. Biol Bull Russ Acad Sci (2010) 37: 532. doi:10.1134/S1062359010050134

Abstract

Results of studies in 1999–2009 of the dynamics of five isolated colonies of the speckled ground squirrel (Spermophilus suslicus) at the northern boundary of the habitat of this species (Zaraiskii area, Moscow oblast) are given. An abrupt decrease in the number of this species in colonies was established, as was a multifold decrease (up to 70–90%) in suitable habitats due to the plowing of meadows and build-up of the area. The fragmentation of the optimum habitat of ground squirrels reached a stage where colonies can no longer exist as a stable autonomous system. The process of their extinction unfolds quickly: the number of animals in some colonies decreased five-six times over the last ten years. To preserve this species, it is necessary to create areas of steppefied meadows with regulated agricultural use.

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© Pleiades Publishing, Ltd. 2010