草蜥属两种蜥蜴卵和幼体特征的比较研究  

A Comparison of Egg and Hatchling Characteristics of Two Lacertid Lizards

作　　者：许雪峰[1] 计翔[1] 

机构地区：[1]杭州师范学院生物学系,杭州310036

出　　处：《动物学杂志》2000年第3期15-19,共5页Chinese Journal of Zoology

基　　金：浙江省自然科学基金!青年人才专项基金;杭州市跨世纪人才基金资助项目

摘　　要：比较研究了南草蜥和北草蜥实验条件下的卵及幼体特征。南草蜥产卵雌体的体长、最大窝卵数、平均卵重小于北草蜥 ,相对窝卵重与北草蜥相似。两种蜥蜴均通过增加卵长径和卵短径来增加卵重 ,但卵外形明显不同 ,南草蜥的卵较长。两种蜥蜴卵孵化过程中均吸水增重。相同孵化温度 ( 2 6℃ )条件下 ,南草蜥的孵化期明显比北草蜥长。南草蜥幼体的体重、体长、头长和头宽的实测值小于北草蜥 ,尾长实测值与北草蜥无显著差异。南草蜥幼体的体重、头长和头宽的矫正平均值小于北草蜥 ,尾长矫正平均值大于北草蜥 ,体长矫正平均值与北草蜥无显著差异。Egg and hatchling characteristics of two species of lacertid lizards, Takydromus sexlineatus and T.septentrionalis, were compared. The size of reproductive females, the maximum clutch size and the mean egg mass were smaller in T.sexlineatus than in T.septentrionalis, whereas both species had much similar values of relative clutch mass. Both species increased egg mass by increasing egg width and egg length as well, but differed in egg shape, with T.sexlineatus laying relatively longer eggs. The incubation length at 26℃ averaged 40\^1 days in T.sexlineatus and 37\^8 days in T.septentrionalis. An ANCOVA indicated that T.sexlineatus hatchlings had smaller body masses and head sizes but longer tails than did T.septentrionalis hatchlings. The analysis also showed that there was no significant difference in hatchling SVL between T.sexlineatus and T.septentrionalis, when controlling the hatchling mass constant.

关 键 词：南草蜥 北草蜥 卵 孵化 幼体特征 分布 

分 类 号：Q954[生物学—动物学]