小型哺乳动物繁殖期的能量收支对策  

ENERGY BUDGET STRATEGIES IN SMALL MAMMALS DURING REPRODUCTION

作　　者：刘赫[1] 王德华[1] 王祖望[1] 

机构地区：[1]中国科学院动物研究所农业虫鼠害综合治理研究国家重点实验室,北京100080

出　　处：《兽类学报》2001年第4期301-309,共9页Acta Theriologica Sinica

基　　金：国家自然科学基金资助项目 (3 9970 1 2 8);中国科学院创新工程项目 (KSCX2 -1 -0 3 );中国科学院生物科学与生物技术研究特别支持费 (STZ -0 1 -0 6)

摘　　要：小哺乳动物能量的分配及权衡 ,无时无刻不体现于繁殖乃至生活史的各阶段。相应的生活史及繁殖对策构成了繁殖能量收支的基本理论。文章从繁殖期能量划分入手 ,综述了小哺乳动物繁殖期间的能量分配对策及哺乳期的能量权衡。其中繁殖期间的能量分配对策包括时间的优化分配、提高能量的同化效率、利用体内储存及能量的补偿等对策。阐述了哺乳期的能量权衡主要对母体的能量权衡对策以及后代的权衡理论 ,较系统地分析了母体与幼体以及幼体之间的能量权衡。这些繁殖能量对策是小哺乳动物长期自然选择的结果 ,任何单一的繁殖对策都不可能总是最优的 。The energy budget strategies during reproduction were reviewed based on both empirical and theoretical literature, including the energy classification during the reproduction, the strategies of energy allocation in the reproduction and the energy trade off during lactation The strategies of energy allocation include optimality of time, improving the efficiency of assimilation, exploiting the storage and compensation in the energy budgets In addition, the trade offs of energy allocation between parent and offspring as well as between litter size and offspring size were analyzed From the dynamic point of view, we thought that there is no one strategy which is not always optimal for animals, different species could adopt different strategies under different situations to increase their fitness

关 键 词：小型哺乳动物 繁殖期 能量收支 

分 类 号：Q959.8[生物学—动物学] Q493.8