Determining the Age of Cyclomorphic Rodents:
FunctionalOntogenetic Determination, Ecological Aspects

G. V. Olenev

Institute of Plant and Animal Ecology, Ural Division, Russian Academy of Sciences,

ul. Vos’mogo Marta 202, Yekaterinburg, 620144;

e-mail: olenev@ipae.uran.ru

Received October 30, 2007

Abstract—Functional–ontogenetic determination of age-dependent dental changes (ADCs) in voles has been
demonstrated. The relationship between ADCs and the functional state of animals has been analyzed. A scheme
and a table for determining individual chronological and biological ages in the bank vole (Clethrionomys glar-
eolus Sch.) are proposed, which markedly improve the accuracy of results. Cases of rodent maturation and
breeding in winter are considered.

DOI: 10.1134/S1067413609020040

Key words: rodents, types of ontogeny, age-dependent dental changes, individual age determination.

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