小型哺乳动物的持续能量收支限制研究进展  

Limits on Sustained Metabolic Rate in Small Mammals

作　　者：赵志军[1,2] 迟庆生[3] 曹静[1] 

机构地区：[1]聊城大学农学院,山东聊城252059 [2]山东省生态学与生物多样性重点实验室,山东聊城252059 [3]中国科学院动物研究所,农业虫害鼠害综合治理研究国家重点实验室,北京100101

出　　处：《动物学杂志》2009年第4期155-160,共6页Chinese Journal of Zoology

基　　金：国家自然科学基金项目(No.30800130);聊城大学博士科研启动基金项目(No.31805)

摘　　要：综述了小型哺乳动物持续能量收支限制的研究概况和进展。最大持续能量收支在决定物种的地理分布、生存适应、繁殖成功等方面都具有重要意义,但在许多条件下受到限制。食物的丰富度,或者动物自身的摄食、消化和吸收能力似乎不是主要限制因素。持续能量收支可能被外周组织和器官消耗能量的能力限制,即"外周限制"假说;或者机体的散热能力所限制,即"热耗散限制"假说。动物也可能通过衡量季节性繁殖投资的价值,实现最大繁殖输出,即"季节性投资"假说。尽管这些假说得到了一些研究的证实,但仍未阐明持续能量收支限制的机理。本文对相关研究的发展方向进行了展望。Sustained energy intake and metabolic rate （Sus EI/MR） play an important role in geographical distribution, survival adaptation and reproductive success of animal species, but in some situations it is constrained. Sus EI/MR is not limited extrinsically by food availability or intrinsically by the capacity of animals to intake, process or absorb energy. The limits on Sus EI/MR may be imposed peripherally by the capacity of tissues to utilize energy, the so- called ＂peripheral limitation＂ hypothesis, or acted by the capacity to dissipate heat, that is the so-called ＂heat dissipation limitation＂ hypothesis. In addition, a trade-off of reproductive investment between seasons may be employed to maximize reproductive output, namely ＂seasonal investment＂ hypothesis. Some results have been reported to provide the evidences for these hypotheses. However, the mechanisms underlined the constrained Sus EI/MR are not fully explained by any of the above hypothesis. Finally, the possible research trends in this field are proposed.

关 键 词：持续能量收支 限制 小型哺乳动物 繁殖 

分 类 号：Q958[生物学—动物学]