关键词: 黄鼠, 冬眠, 静止代谢率, 基础代谢率, 中性温度区, 耗氧量

Abstract: Oxygen consumption and other energetic parameters were in nonnothermic ground squirrels (Citellus daurieus) measured in spring．summer and autumn and also in hibernating hypothermic ones in winter，so as to deal with the regularity of seasonal variation energy metabolism of this hibernator． The results showed that in spring，summer and autumn the thermoneutral zone has about±3℃ vatiation．The BMR(ml／g^-1．h^-1 )was 3.6182，2.6396 and 2.6005 respectively．Of which the differenees between spring and summer ，between spring and autumn were significant．The lowest lRMR, 0.4436, was obtained at Ta of 5℃ in winter．Over the Ta ratges 0℃ to the low critical temperature．a signiflean tly negaHve correlation and a regression was observed between the Ta and the RMR in every normotherme season．The chemical thermoreguatien of C．dauricus was lower ， especially in autumn，and it was inhibited while the animals were hibernating BMR in normothemle C．dagrlcus was closely related to the area of body surface，but the dependence on the area of body surface disappeared in hibernation hypothermia．

Key words: Ground squirrel Citellus dauricus, Hibernation, Resting metabolic rate, RMR, Basal metabolic rate BMR, Thermoneutral zone, Oxygen consumption