两种麻蜥卵和孵出幼体的特征

研究了山地麻蜥和丽斑麻蜥实验条件下的卵及孵出幼体的特征.山地麻蜥产卵雌体的体长大于丽斑麻蜥,窝卵重小于丽斑麻蜥,但平均卵重和相对窝卵重与丽斑麻蜥相似.两种蜥蜴均通过增加卵长径和卵短径来增加卵重,但卵的外形不同,山地麻蜥卵较长.两种蜥蜴卵孵化过程中均吸水增重.相似孵化条件(波动温度、-12 kPa)下,山地麻蜥的孵化期明显比丽斑麻蜥长.山地麻蜥幼体的尾、头部大于丽斑麻蜥,但体重和SVL相似.

Egg and Hatchling Characteristics of Two Species of Lizards (Lacertidae, Eremias)

Egg and hatchling characteristics of two species of lizards, Eremias breuchleyi and E. argus, were compared. The size of reproductive females was larger in E. breuchleyi than in E. argus. The clutch mass was smaller in E. breuchleyi than in E. argus, whereas both species had similar values in mean egg mass and relative clutch mass. Both species increased egg mass by increasing egg width and egg length as well, but differed in egg shape, with E. breuchleyi laying relatively longer eggs. The incubation length at naturally fluctuating temperatures averaged 37.6 days in E. breuchleyi and 36.1 days in E. argus. An ANCOVA indicated that E. breuchleyi hatchlings had greater TL, HL and HW than did E. argus hatchlings when controlling for the hatchling mass constant. Both species had very similar values of body mass and SVL.