广东罗坑自然保护区鳄蜥运动能力的热依赖性  

Thermal Dependence of Locomotor Performance for Shinisaurus crocodilurus in the Luokeng Nature Reserve,Guangdong,China

作　　者：武正军[1,2,3] 王振兴[1,4] 刘海洋[1] 何南[1] 于海 黄乘明[1,6] 

机构地区：[1]广西师范大学生命科学学院,广西桂林541004 [2]珍稀濒危动植物生态与环境保护省部共建教育部重点实验室,广西桂林541004 [3]广西珍稀濒危动物生态学重点实验室培育基地,广西桂林541004 [4]广西崇左白头叶猴自然保护区管理局,广西崇左532200 [5]广东罗坑国家级自然保护区,广东韶关512100 [6]中国科学院动物研究所国家动物博物馆,北京100101

出　　处：《广西师范大学学报（自然科学版）》2012年第3期276-281,共6页Journal of Guangxi Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(30760039;31060288);国家林业局基金资助项目;广东省林业科技创新专项资金资助项目(2008KJCX013);珍稀濒危动植物生态与环境保护省部共建教育部重点实验室基金资助项目(桂科能1001Z013);广西高等学校优秀人才资助计划基金资助项目;广西研究生教育创新基金资助项目(2009106020710M55)

摘　　要：爬行动物的行为表现对体温具有明显的依赖性。在一定温度范围内,相对较高且稳定的体温有利于爬行动物的运动表现。为了解温度对鳄蜥运动表现的影响,2009年7—8月在广东省罗坑自然保护区,我们对鳄蜥研究中心的部分人工饲养鳄蜥进行运动能力的测定。实验动物分为成年雄性组、成年雌性组、亚成体组和幼体鳄蜥组,并设置20、22、24、26、28、30、32、34°C共8个温度组。结果显示:温度对鳄蜥的运动能力影响显著(allP<0.001),年龄对鳄蜥的平均跑速和跑道停顿次数有显著的影响,表现为:①22°C时,鳄蜥的平均跑速显著最慢,持续运动距离最小,在跑道停顿的次数最多(allP<0.05);②成体鳄蜥与亚成体鳄蜥间的平均跑速、持续运动距离和跑道停顿次数差异均不显著(allP>0.05),但与成体鳄蜥相比,幼蜥的平均跑速较慢,持续运动距离较小,在跑道的停顿次数较多(allP<0.05);③成体鳄蜥在20～28°C的平均跑速随温度升高而加快,超过28°C后,平均跑速随温度升高而减慢;亚成体在20～30°C的平均跑速随温度升高而加快,超过30°C后,平均跑速随温度升高而减慢;幼蜥20～34°C的平均跑速随温度升高而加快,在34°C时达到峰值。鳄蜥的运动能力存在温度组和年龄组的差异,可能与其体温调节和选择体温的年龄漂移密切相关。Reptile＇s behavior has obvious dependence on the temperature.In a certain temperature range,relatively high and stable body temperature is conducive to reptile＇s locomotor performance.In order to understand the effect of temperature on locomotor performance of Shinisaurus crocodilurus,a study was conducted in the Shinisaurus crocodilurus research centre in Guangdong Luokeng Nature Reserve from July to August,2009.Experimental animals were divided into three groups,including：adults,sub-adults and one-year-old juveniles,and eight experimental temperatures were set,which was 20 °C,22 °C,24 °C,26 °C,28 °C,30 °C,32 °C and 34 °C respectively.The results showed that the temperature had significant effects on locomotor performance of Shinisaurus crocodilurus（all P0.001）,and the age of Shinisaurus crocodilurus had significant effects on average speed and frequency of pause.（1） Under 22 °C,the average speed of Shinisaurus crocodilurus was the slowest,the distance of continuous movement was the smallest,the frequency of pause was the highest（all P0.05）.（2） There were no significant differences between the average speed,the distance of continuous movement and the frequency of pause for adult and juvenile Shinisaurus crocodilurus（all P0.05）,but compared with that of adult Shinisaurus crocodilurus the average speed of one-year-old Shinisaurus crocodilurus was slower,the distance of continuous movement was smaller,the frequency of pause was higher.（3） From 20～28 °C,the average speed of adult Shinisaurus crocodilurus increased with the rise of temperature,over 28 °C,the average speed decreased with the rise of temperature.However,for juveniles,the average speed increased with the rise of temperature from 20～30 °C and decreased with the rise of temperature over 30 °C.The average speed of one-old-year Shinisaurus crocodilurus increased with the rise of temperature from 20 °C to 34 °C and the speed maximum was at 34 °C.The difference of locomotor performance among temperatures and a

关 键 词：温度 鳄蜥 运动表现 热依赖性 

分 类 号：Q958.11[生物学—动物学] Q959.6