捷蜥蜴新疆种群的生理体温调节能力  

Physiological thermoregulation ability of a Xinjiang population of Lacerta agilis

作　　者：扬成[1] 林枢[1] 刘鹏[1] 赵文阁[1] 

机构地区：[1]哈尔滨师范大学生命科学与技术学院,哈尔滨150025

出　　处：《生态学杂志》2015年第6期1591-1594,共4页Chinese Journal of Ecology

基　　金：哈尔滨师范大学硕士研究生创新科研项目(hsdsscx2014-30);哈尔滨师范大学科技发展预研项目(11XYG-04);国家自然科学基金项目(31172079)资助

摘　　要：以我国新疆地区分布的捷蜥蜴（Lacerta agilis）为研究对象,于2013年5月份采集成体,在实验室内饲养和繁殖,2013年11—12月间,采用直接测量泄殖腔温度的方法研究捷蜥蜴体温的日变化节律,分析体温与头体长、体重等形态特征的相关性,探讨环境温度对不同年龄和性别个体生理体温调节能力的影响。结果表明,在18～22℃室温条件下,捷蜥蜴两性间的日平均体温无显著差异,体温具有显著的日变化节律;体温与头体长及体重均无显著相关性,与环境温度呈线性正相关,比环境温度高（0.89±0.16）℃;捷蜥蜴体温与环境温度的线性回归方程y=kx＋b与y=x两条直线相交,当环境温度高于交点温度时,捷蜥蜴的体温低于环境温度,当环境温度低于交点温度时,捷蜥蜴的体温高于环境温度;幼体的生理体温调节能力较强,而雌性的生理体温调节能力较弱。尽管揭示了捷蜥蜴体温的日变化规律和同环境温度的关系,但捷蜥蜴体温的生理调节和行为调节之间的相互关系有待于进一步研究。A population of Lacerta agilis was collected in May 2013 in Xinjiang,China for the study. These adult lizards were fed and bred in the laboratory and the diurnal change of their body temperature was examined during November to December,2013. The correlation of body temperature using the direct measurement of cloaca temperature and morphological characteristics such as snout-vent length（ SVL） and weight was analyzed,and the effects of ambient temperature on the physiological thermoregulation ability of lizards with different ages and sexes were discussed. The results showed that body temperature had a significant diurnal rhythm and was（ 0.89 ± 0.16） !C higher than environment temperature under room temperature condition（ 18-22） ℃. Body temperature had no significant differences between the sexes and showed no significant correlation with SVL and weight of the lizard. However,body temperature and ambient temperature had a positive,linear correlation. The isothermal point of y = kx ＋b and y = x was very important to the regulation of body temperature. Body temperature of the lizard was lower than ambient temperature when ambient temperature was higher than the isothermal point. On the contrary,it was higher when ambient temperature was lower than the isothermal point. Physiological thermoregulation ability of the larval lizard was stronger,while that of the female was weaker. The relationship of diurnal regulation of body temperature with ambient temperature was found in the study,however,the relationship between physiological and behavioral adjustment of lizard body temperature needs further research.

关 键 词：捷蜥蜴 日平均体温 环境温度 体温调节 

分 类 号：Q959.6[生物学—动物学]