兽类学报2001，Vol.21Issue(2)：101-106,6.
内蒙古库布齐沙地四种啮齿动物非颤抖性产热的季节变化
SEASONAL CHANGES OF NON-SHIVERING THERMOGENESIS IN FOUR RODENTS FROM KUBUQI DESERT OF INNER MONGOLIA
鲍伟东 1王德华 2王祖望 2周延林 3王利民3
作者信息
- 1. 北京林业大学资源与环境学院,
- 2. 中国科学院动物研究所,
- 3. 中国农业科学院草原研究所,
- 折叠
摘要
Abstract
To reveal the role of non-shivering thermogenesis(NST) in thermoregulaion for small mammals in inland arid environment, a comparative study of seasonal variations of NST was conducted on four rodent species in Kubuqi desert of Inner Mongolia in 1997. The four species were northern three-toed jerboa(Dipus sagitta), midday gerbil(Meriones meridianus), desert hamster(Phodopus roborovskii) and striped hamster(Cricetelus barabensis). NST was induced by injecting mass-dependent dosage of norepinephrine (NE). The oxygen consumption was measured by using Kalabukhov-Skorvstov closed circuit respirometer. The results showed that seasonal changes of NST was influenced significantly by ambient temperature. It was higher in autumn than in summer for the four species. The NST in autumn in desert hamster and striped hamster was also 14% and 35% higher than spring values, respectively. The typical desert species, desert hamster, showed a significant seasonal changes in NST and the lowest was found in summer. These results indicated that during the evolutionary process, the four species living in desert environment have developed perfect non-shivering thermogenesis mechanism to adapt the dramatic seasonal temperature fluctuations of inland arid environment.关键词
荒漠啮齿动物/非颤抖性产热/季节变化分类
生物科学引用本文复制引用
鲍伟东,王德华,王祖望,周延林,王利民..内蒙古库布齐沙地四种啮齿动物非颤抖性产热的季节变化[J].兽类学报,2001,21(2):101-106,6.
