Effects of macroparasites on the energy allocation of reproducing small mammals  

作　　者：A.Allan DEGEN 

机构地区：[1]Desert Animal Adaptations and Husbandry,Wyler Department of Dryland Agriculture,Jacob Blaustein Institutes for Desert Research,Ben-Gurion University of the Negev,Beer Sheva 84105,Israel

出　　处：《Frontiers in Biology》2008年第2期123-130,共8页生物学前沿（英文版）

摘　　要：Reproduction,including lactation,is the most costly activity in terms of energy expenditure in female mammals.Consequently,the energy requirements of the reproducing female may not be met at this time,especially if other energy demanding activities are occurring concomitantly.Such activities could be the activation and maintenance of an immune system in response to parasitic infestation.These protective processes are energetically demanding and require trade-off decisions among competing energy demands.In the case of a reproducing mammal,the trade-offs occur mainly between defence against parasites and reproductive costs of the host.In this paper,I discuss the effects of macroparasites on the energy allocation of reproducing small mammals.

关 键 词：REPRODUCTION small mammals macroparasites ectoparasites and endoparasites immune response trade-off decisions energy allocation 

分 类 号：O57[理学—粒子物理与原子核物理]