高山姬鼠冷诱导最大代谢率的季节性差异  

Seasonal variations of cold-induced maximum metabolic rate in Apodemus chevrieri

作　　者：朱万龙[1] 王蓓[1] 张麟[1] 贾婷[1] 王睿[1] 蔡金红[1] 练硝[1] 王政昆[1] 

机构地区：[1]云南师范大学生命科学学院,生物能源持续开发利用教育部工程研究中心,昆明650092

出　　处：《Journal of Life Sciences》2010年第2期10-13,共4页生命科学（英文版）

基　　金：本研究受科技强省重点项目（No.2007C00021）,云南省教育厅科学研究基金项目（No.08J0014）资助,

摘　　要：最大代谢率（maximum metabolicrate）对于动物的生存、繁殖和分布具有关键作用。本实验用开放式呼吸仪测定了高山姬鼠（Apodemus chevrieri）夏季和冬季的冷诱导最大代谢率。高山姬鼠夏季的冷诱导最大代谢率为9．58±1．97mlO2/g.h，冬季的冷诱导最大代谢率为12．35±1．09mlO2／g．h。冷诱导最大代谢率冬夏之间差异显着。结果表明：栖息于横断山脉的高山姬鼠由于受到低温的胁迫，导致其冷诱导最大代谢率季节性变化较大。Maximum metabolic rate is a physiological limit that is important for animals＇ survival, reproduction and geographic distribution. Cold-induced maximum metabolic rate were measured in a rodent species, Apodemus chevrieri, which distributed in Hengduan mountains region, in summer and winter by using the open-circuit system respirometer. Cold-induced maximum metabolic rate was 9.58±1.97ml O2/g.h in summer, and 12.35±1.09ml O2/g.h in winter, respectively. Cold-induced maximum metabolic rate is higher in winter than that in summer. Our data indicated that seasonal fluctuations in ambient temperatures in Hengduan mountains region might be the main force to lead the seasonal variations in cold-induced maximum metabolic rate.

关 键 词：最大代谢率 季节变化 高山姬鼠 冷诱导 啮齿类动物 季节性波动 横断山地区 地理分布 

分 类 号：Q959.836[生物学—动物学] S443[农业科学—农业昆虫与害虫防治]