Temperature acclimation affects thermal preference and tolerance in three Eremias lizards(Lacertidae)  

作　　者：Hong LI Zheng WANG Wenbin MEI Xiang JI 

机构地区：[1]Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing,Jiangsu 210046, China [2]School of Life Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China [3]Department of Biological Sciences, Central Washington University, Ellensburg, WA 98926-7537, USA

出　　处：《Current Zoology》2009年第4期258-265,共8页动物学报（英文版）

基　　金：supported by a grant from Natural Science Foundation of China(Project No.30670281)

摘　　要：We acclimated adult males of three Eremias lizards from different latitudes to 28℃,33℃ or 38℃ to examine whether temperature acclimation affects their thermal preference and tolerance and whether thermal preference and tolerance of these lizards correspond with their latitudinal distributions.Overall,selected body temperature(Tsel)and viable temperature range(VTR)were both highest in E.brenchleyi and lowest in E.multiocellata,with E.argus in between;critical thermal minimum(CTMin)was highest in E.multiocellata and lowest in E.brenchleyi,with E.argus in between;critical thermal maximum(CTMax)was lower in E.multiocellata than in other two species.Lizards acclimated to 28℃ and 38℃ overall selected lower body temperatures than those acclimated to 33℃;lizards acclimated to high temperatures were less tolerant of low temperatures,and vice versa;lizards acclimated to 28℃ were less tolerant of high temperatures but had a wider VTR range than those acclimated to 33℃ and 38℃.Lizards of three species acclimated to the three temperatures always differed from each other in CTMin,but not in Tsel,CTMax and VTR.Our results show that:temperature acclimation plays an important role in influencing thermal preference and tolerance in the three Eremias lizards,although the degrees to which acclimation temperature affects thermal preference and tolerance differ among species;thermal preference rather than tolerance of the three Eremias lizards corresponds with their latitudinal distributions.

关 键 词：LIZARDS EREMIAS Acclimation temperature Thermal preference Thermal tolerance Viable temperature range Food assimilation 

分 类 号：Q95[生物学—动物学]