肇庆七星岩原尾蜥虎生态学研究

报道了原尾蜥虎 (HemidactylusbowringiiGiray)的生态学观察研究。成体平均全长10 7 0 4mm ,尾长为体长的 1 11倍 ,尾再生能力强。 5～ 10月为活动盛期 ,5～ 6月为繁殖高峰期 ,此期雌雄易鉴别。秋季种群结构明显 ,个体最多。 15℃以下完全入眠 ,2 0℃以下陆续出蛰。雌雄性腺发育具有较明显的季节变化 ,雄性睾丸 5月为最大值 ,重量 2 2 5mg ,其长径为 7 2 8(6 8～ 7 5 )mm ,短径为 4 2 9(4 0～ 4 5 )mm。 8月降为最低值 ,重量 3 74mg ,其长径为 4 6 2 (4 5～ 5 0 )mm ,短径为 1 2 2 (1 1～ 1 4)mm。一年一次性产卵 2枚 ,卵重 0 2 941g ,其长径为9 5 8(8 45～ 11 4)mm ,短径为 7 91(7 70～ 8 41)mm ,孵化期 42～ 46d ,6月中旬出现当年幼体

A tentative study on ecology of Henidactylus bowringii,Giray in Seven Star Crags of Zhaoqing

This paper deals with ecology of Hemidactylus bowingii, Giray. The average adult length is 107.04mm. The tail is 1.1times as long as the body.It can regenerate its lost tail. The most active period is from May to October. A peak period of birth is from May to June, when it is easy to tell males from females.ln Autumn the stucture of species is clear, but the individuals take the majority.Below 15℃ they fall asleep completely, while above 20℃ they come to be awaken. The size of sexual gland changes seasonly.ln May the male's testis reaches its maximum with the weight of 22.5mg on average, the long diameter of 7.28(6.8～7.5)mm and the short diameter of 4.29(4.0～4.5)mm. ln August the testis is at its minimum with the weight of 3.74mg, the long diameterof 4.62(4.5～5.0)mm and the short diameter of 1.22(1.10～1.4)mm.It lays 2 eggs per year with the weight of 0.294?1 (0.248～0.325)g, the long diameter of 9.58(8.45～11.4)mm and the short diameter of 7.91(7.70～8.41)mm. The incubation needs 42～46 days. The egg will be hatched in the middle of June.