Russian Journal of Ecology, Vol. 35, No. 6, 2004, pp. 424–425. Translated from Ekologiya, No. 6, 2004, pp. 471–472. Original Russian Text Copyright © 2004 by Cheprakov, Nokhrin, Shlyapnikova. SHORT COMMUNICATIONS Seasonal Biorhythms in Captive Voles Microtus rossiaemeridionalis Ognev, 1924 M. I. Cheprakov, D. Yu. Nokhrin, and M. S. Shlyapnikova Institute of Plant and Animal Ecology, Ural Division, Russian Academy of Sciences, ul. Vos’mogo Marta 202, Ekaterinburg, 620144 Russia Received April 24, 2003 Key words: species ecology, seasonal biorhythms, body and litter sizes. In studying ecological features of individual spe- of three months, the tail in voles born from April to cies, it is important to use experimental models of the October reached their deﬁnite size; in other voles, this processes that take place in natural populations. Sea- occurred at the age of ﬁve months (p < 0.01). Seasonal sonal rhythms can be manifested to various degrees and differences in the tail size were also observed at an differ even in closely related species (Cheprakov, older age: in voles born from mid-April to mid-July, the 2002). We studied seasonal changes in body weight, tail was longer than in other animals (p = 0.02). exterior characters, and the frequency of
Russian Journal of Ecology – Springer Journals
Published: Nov 18, 2004
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