丽纹攀蜥的热生物学研究

Thermal Biology of Japalura splendida

2010年11-12月,测定丽纹攀蜥Japalura splendida实验室条件下的选择体温、临界高温、昼夜体温和摄食后的选择体温等热生物学指标.结果显示：丽纹攀蜥的选择体温Tse1和临界高温TCTmax分别为（26.22±0.65）℃和（42.35±0.41）℃;在环境温度为15～35℃的实验条件下,丽纹攀蜥的体温Tb与环境温度Te存在线性关系（Tb=0.663Te＋7.193;）;在缺乏温度梯度热环境下,环境温度与丽纹攀蜥的活动体温差异不显著（T11 =0.643,P=0.534）;摄食前后丽纹攀蜥的选择体温不存在显著差异（F2.104=0.997,P=0.372）.结果表明：（1）丽纹攀蜥的体温随环境温度的变化而变化,显示了外温动物的体温特点;（2）丽纹攀蜥具有一定的生理调节体温的能力;（3）丽纹攀蜥与其他蜥蜴在临界高温上的差异可能与其地理分布有关;（4）摄食前后丽纹攀蜥选择体温差异不显著可能与其摄入的食物有关.

From November to December, 2010, the selected body temperature （Tsel）, critical thermal maximum （TcTMax）, the diel variation in body temperature, post-prandial selected body temperature of Japalura splendida were measured under laboratory conditions. The Tsel and TcTMax Of J. splendida were （26.22-＋-0.65） ℃ and （42.35!0.41） ℃, respectively. In a gradient of 15-30 ℃, the body temperature （Tu） was positively correlated with ambient temperature （Tc） ： Tu=O.663Te4-7.193. In the environment without thermal gradients, diel variation in body temperature was not significantly affected by environment temperatures （T11 =0.643 ,P =0.534）. There were no significant differences in Tsel between fasted and fed lizards（F 2, 104= 0.997, P = 0.372）. The results indicated that ： （1） The body temperature of J.splendida changed with environment temperature. （2）J. splendida could conduct its body temperature by physiological thermoregulation. （3） The diffences of TcTMax among J. splendida and other lizards may be related to their ge between fasted and fed, while ogra may phical distribution. （4）Tsel of J. splendida did not vary significantly be related to its food.