Ecological and physiological characteristics of seasonal biology of the mongolian hamster, Allocricetulus curtatus allan 1940 (Cricetinae, Rodentia)

Ecological and physiological characteristics of seasonal biology of the mongolian hamster,... Analysis of the seasonal dynamics of body weight and steroid hormones (cortisol, progesterone, and testosterone), the pattern of hypothermia, and basic reproductive parameters has been performed in the Mongolian hamster (Allocricetulus curtatus), a poorly studied rodent species inhabiting areas with a sharply continental climate. The results show that torpor bouts take place in wintering animals. Changes in body weight during the autumn-winter season are insignificant. The pattern of fluctuations in the levels of sex steroids and cortisol is similar to that in dwarf hamsters of the genus Phodopus. Seasonal features in the dynamics of basal cortisol level differentiate A. curtatus from the closely related Eversmann’s hamster (A. eversmanni), which may be due to differences in the social structure of these species. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Ecology Springer Journals

Ecological and physiological characteristics of seasonal biology of the mongolian hamster, Allocricetulus curtatus allan 1940 (Cricetinae, Rodentia)

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Ecology; Environment, general
ISSN
1067-4136
eISSN
1608-3334
D.O.I.
10.1134/S1067413613010050
Publisher site
See Article on Publisher Site

Abstract

Analysis of the seasonal dynamics of body weight and steroid hormones (cortisol, progesterone, and testosterone), the pattern of hypothermia, and basic reproductive parameters has been performed in the Mongolian hamster (Allocricetulus curtatus), a poorly studied rodent species inhabiting areas with a sharply continental climate. The results show that torpor bouts take place in wintering animals. Changes in body weight during the autumn-winter season are insignificant. The pattern of fluctuations in the levels of sex steroids and cortisol is similar to that in dwarf hamsters of the genus Phodopus. Seasonal features in the dynamics of basal cortisol level differentiate A. curtatus from the closely related Eversmann’s hamster (A. eversmanni), which may be due to differences in the social structure of these species.

Journal

Russian Journal of EcologySpringer Journals

Published: Jan 23, 2013

References

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