西斯高加索仓鼠(Mesocricetus raddei)(Cricetidae,啮齿目)冬眠期间的体温动态变化

M. M. Chunkov, D. Omarova, A. V. Surov, K. Z. Omarov, N. Y. Feоktistova
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引用次数: 0

摘要

在达吉斯坦山区的半自然条件下(网笼埋在地下,动物可以挖洞),研究了西斯高加索仓鼠(Mesocricetus raddei)冬季冬眠期间的体温动态。在七只成年动物(三只雌性和四只雄性)腹腔内植入了温度计,每隔 30 分钟记录一次体温。所有个体都成功越冬,并表现出有规律的低体温。一次异温期的平均持续时间为(192±6.8)天,一次低温期和常温期的平均持续时间分别为(15 5.3±6.2)小时和(16.5±1.2)小时。最低体温达到 +0.5°C。研究表明,体温和低体温持续时间与洞穴内的温度呈负相关。 讨论了高加索仓鼠和其他冬眠哺乳动物的适应性冬眠机制。
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Body temperature dynamics of the Ciscaucasian hamster (Mesocricetus raddei) (Cricetidae, Rodentia) during hibernation
The body temperature dynamics of  the Ciscaucasian hamster (Mesocricetus raddei) during winter hibernation was studied in semi-natural conditions (a mesh cage buried in the ground,  where animals could dig burrows) in mountainous  Dagestan. Thermologgers were implanted intraperitoneally to seven adult animals (three females and four males) to record body temperature at  30 min intervals. All individuals successfully overwintered and exhibited regular episodes of hypothermia. The average of total duration of one heterothermia period was 192±6.8 days, that of one hypothermia and normothermia episode was 15 5.3±6.2 h and 16.5±1.2 h, respectively. The minimum body temperature reached +0.5°C. It has  been shown that the body temperature and the  duration of hypothermia episodes are negatively correlated with the  temperature inside the burrow.  Adaptive hibernation mechanisms of the Ciscaucasian hamster and other hibernating mammalian species are discussed.
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