断尾对胎生蜥蜴运动能力和选择体温的影响  

Effects of tail loss on locomotor ability and selected body temperature of common lizard Lacerta vivipara

作　　者：刘鹏[1] 刘琳琳[1] 刘志涛[1] 夏玉国[2] 计翔[3] 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 [2]黑龙江生物科技职业学院,哈尔滨150025 [3]南京师范大学生命科学学院,南京210046

出　　处：《生态学杂志》2011年第9期2034-2038,共5页Chinese Journal of Ecology

基　　金：黑龙江省青年科学基金项目(QC2010035);黑龙江省教育厅科学技术研究项目(12511162);哈尔滨师范大学科技发展预研项目(09XKYY08)资助

摘　　要：尾自切是蜥蜴为了降低被捕食危险而采取的一种反捕食适应策略,但断尾可导致体重减轻、热量收支平衡改变,并影响蜥蜴的运动能力和体温调节。为检验断尾对蜥蜴运动能力和选择体温的影响,于2006年5月选取黑龙江省小兴安岭地区的一个胎生蜥蜴种群进行实验。结果表明:在30$C和24$C两个实验温度下,断尾后胎生蜥蜴的运动能力均明显下降,表现在停顿次数增多、最大可持续距离和最大疾跑速度减少等方面;断尾、温度和性别对胎生蜥蜴运动能力的影响在一定程度上是相互独立的,断尾是影响胎生蜥蜴运动能力的主要因素;断尾对胎生蜥蜴的选择体温没有显著影响。Tail autotomy is an effective anti-predator strategy adopted by many lizards, but can induce the decrease of their body mass and the changes in their energy balance, giving effects on their locomotor ability and body temperature adjustment. In this paper, a common lizard （ Lacerta vivipara） population was collected from Xiaoxing＇ an Mountains in Heilongjiang Province of Northeast China in May 2006 to examine the effects of tail loss on the L. vivipara locomotor ability and selected body temperature. At experimental temperature 30 ℃ and 24 ℃, the tail loss of L. vivipara resulted in an obvious reduction in its locomotor performances. More specifically, the frequency of stopping locomotion increased whereas the maximum distance of continuous locomotion and the sprint speed decreased. To some extent, the effects of tail loss, experimental temperature, and sex on the locomotor ability of L. vivipara were independently. Tail loss was the main factor affecting the locomotor ability, but had little effects on the selected body temperature.

关 键 词：胎生蜥蜴 断尾 运动能力 选择体温 温度 性别 

分 类 号：Q958[生物学—动物学]