雄性山地麻蜥选择体温、热耐受性及温度对食物同化和运动表现的影响  

Selected Body Temperature,Thermal Tolerance and Influence of Temperature on Food Assimilation and Locomotor Performance in Lacertid Lizards,Eremias brenchleyi

作　　者：许雪峰[1] 陈雪君[1] 计翔[1] 

机构地区：[1]杭州师范学院生命科学学院

出　　处：《Zoological Research》2001年第6期443-448,共6页动物学研究（英文）

基　　金：浙江省自然科学基金青年人才专项基金;安徽省教育厅基金资助项目

摘　　要：研究了捕自安徽宿州的成年雄性山地麻蜥 (Eremiasbrenchleyi)选择体温、热耐受性、温度对食物同化和运动表现的影响。结果显示 :①选择体温、临界高温和临界低温的平均值分别为 33 7、 43 6和 3 3℃。②环境温度在 2 6～ 38℃时 ,对山地麻蜥食物通过时间、摄食量、表观消化系数 (ADC)、同化效率 (AE)和运动表现有显著的影响 ;在 2 6～ 30℃时食物通过时间随温度升高而缩短 ,超过 30℃则随温度升高而延长 ;在 2 6和 2 8℃时 ,摄食量、ADC和AE均小于更高温度的对应值。③体温在 19～ 34℃ ,蜥蜴的疾跑速随体温上升而加快 ,31和 34℃时最快 ,超过 34℃后随体温升高而减慢 ;31和 34℃时的持续运动距离最长 ,超过 36℃后随体温升高而显著缩短 ,但体温 19～ 36℃蜥蜴的持续运动距离无显著差异 ;19～ 34℃蜥蜴的跑道停顿次数较少 ,无显著差异 ,超过 34℃后显著增加。Selected body temperature (Tsel),critical thermal maximum (TCmax),critical thermal minimum (TCmin),and influence of temperature on food assimilation and locomotor performance were studied in adult male lacertid lizards, Eremias brenchleyi ,from a population in Suzhou,Anhui,eastern China.Tsel,TCmax and TCmin were 33 7,43 6 and 3 3℃,respectively.Temperature significantly affected food passage time,food intake,apparent digestive coefficient (ADC),assimilation efficiency (AE) and locomotor performance of lizards.The food passage time decreased with increase in temperature from 26 to 30℃ and increased at higher temperatures.Food intake,ADC and AE were lower at 26 and 28℃ than at higher temperatures.The sprint speed increased with increase in body temperature from 19 to 34℃,and then decreased dramatically at higher temperatures.The length of continuous locomotion was apparently greater at 31 and 34℃ than at other lower or higher temperatures,and decreased dramatically at the body temperatures higher than 36℃.The average number of stops in the racetrack was significantly greater in lizards with body temperatures higher than 34℃ than in those with body temperatures from 19 to 34℃.Our results suggest that the optimal body temperatures for locomotion are 31-34℃,and the body temperature has pervasive effects on food assimilation and locomotion performance in lizards Eremias brenchleyi .

关 键 词：山地麻蜥 选择体温 热耐受性 食物同化 运动表现 

分 类 号：Q959.62[生物学—动物学] Q494