摘要
用开放式呼吸仪测定了当年生和往年生高山姬鼠的冷诱导和运动诱导最大代谢率。当年生高山姬鼠的冷诱导最大代谢率为:(7.25±0.25)mLO2/(g.h),运动诱导最大代谢率为(9.22±0.27)mLO2/(g.h);当年生鼠冷诱导最大代谢率雌雄间无显著差异,运动诱导最大代谢率雌雄间差异显著。当年生高山姬鼠的冷诱导最大代谢率低于往年个体,运动诱导最大代谢率高于往年生个体。结果表明:当年生高山姬鼠忍受寒冷的能力低于往年个体,可能是对横断山地区年平均气温较低的自然环境的胁迫产生的适应;而雄性运动诱导最大代谢率大于雌性,可能是为了适应避免近亲繁殖和激烈竞争而在性成熟后从出生地向外扩散。
The cold-induced Maximal Metabolic Rate（MMR） and locomotion-induced MMR of Apodemus Chevrieri born in current year and in past years are measured with the open-respiratory analyzer.Cold-induced MMR and locomotion-induced MMR of Apodemus Chevrieri born in current year are（7.25 ± 0.25） mLO2 /（g·h） and（9.22 ± 0.27） mLO2 /（g·h） respectively.There was no significant difference between males and females in cold-induced MMR,whereas locomotion-induced MMR in males was higher than females obviously.Cold-induced MMR of animals born in current year was lower than those born in past years,but Locomotion-induced MMR is the opposite.The results suggested that： the cold-induced MMR of males and females born in current year are almost the same,but lower than those born in past years because of the adaptation to the lower annual average temperature in Heng-duan mountain region.Locomotion-induced MMR in males was higher than that in females,it is possibly the result of long time adaptation in natural dispersing process after maturation to avoid inbreeding and competition.
出处
《生态学报》
CAS
CSCD
北大核心
2010年第11期2965-2971,共7页
Acta Ecologica Sinica
基金
云南省科技强省重点资助项目(2007C000Z1)
云南省教育厅科研专项重大资助项目
关键词
高山姬鼠
最大代谢率
扩散
Apodemus chevrieri
maximal metabolic rate
natal disperse
