Context-dependent effects of cold stress on behavioral, physiological,and life-history traits of the red flour beetle

作     者：Inon Scharf Keren-Or Wertheimer Joy Lira Xin Tomer Gilad Inna Goldenberg Aziz Subach 

作者机构：School of ZoologyFaculty of Life Sciences &Steinhardt Museum of Natural HistoryTel Aviv UniversityTel AvivIsrael 

出 版 物：《Insect Science》 (昆虫科学（英文版）)

年 卷 期：2019年第26卷第1期

页      面：142-153页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 09[农学] 0904[农学-植物保护] 0901[农学-作物学] 0713[理学-生态学] 

基　　金：the People Programme (Marie Curie Actions)of the European Union's Seventh Framework Programme (FP7/2007-2013)under REA grant agreement no.333442 the Israel Science Foundation (grant no.442/16)for funding this study 

主　　题：chill-coma recovery time cross-tolerance latency to mate maternal effects thermal ecology Tribolium castaneum 

摘      要：Animals are exposed in nature to a variety *** stress is generally harmful,mild stress can also be beneficial and contribute to reproduction and *** studied the effect of five cold shock events versus a single cold shock and a control group, representing three levels of stress (harsh,mild,and no stress),on behavioral,physiological, and life-history traits of the red flour beetle (Tribolium castaneum,Herbst 1797).Beetles exposed to harsh cold stress were less active than a control group:they moved less and failed more frequently to detect a food *** probability to mate was also lower. Beetle pairs exposed to harsh cold stress frequently failed to reproduce at all,and if reproducing,females laid fewer eggs,which were,as larvae in mid-development,smaller than those in the control ***,harsh cold stress led to improved female starvation tolerance,probably due to enhanced lipid *** cold shock also improved tolerance to an additional cold shock compared to the ***,a single cold shock event negatively affected fewer measured response variables than the harsh cold stress, but also enhanced neither starvation tolerance nor tolerance to an additional cold shock. The consequences of a harsher cold stress are thus not solely detrimental but might even enhance survival under stressful *** benign conditions,nevertheless,harsh stress impedes beetle *** harsh stress probably shifted the balance point of the survival-reproduction trade-off,a shift that did not take place following exposure to mild stress.