原尾蜥虎的繁殖生态学研究  

Breeding ecology of Hemidactylus bowringii Gray

作　　者：徐大德[1] 

机构地区：[1]肇庆学院生命科学学院,肇庆526061

出　　处：《安徽农业大学学报》2009年第1期44-48,共5页Journal of Anhui Agricultural University

基　　金：广东省教育厅自然科学基金(Z02076);广东省自然科学基金(06300177)共同资助

摘　　要：为研究原尾蜥虎（Hemidactyl Hsbowringii，Gray）的繁殖生态学，于2005和2006年4月-8月在肇庆市郊捕获761条不同大小的个体。繁殖雌体的最小SVL为45．68mm，大于此大小的个体被判定为性成熟。幼体组个体大小及头部大小两性间无差异，而成年原尾蜥虎具有两性异形，雄性大于雌性且具有较大的头部，因此原尾蜥虎个体大小的两性异形是性成熟以后发生的。饲养于实验室的母体于5月下旬至8月中旬产卵，繁殖雌体具有年产多窝卵的潜力。卵重变异系数为0．12。多数母体单次产2枚卵，少数产1枚，窝卵重和卵重均与母体体长无关。相对窝卵重与母体体长呈显著的负相关，表明较小的母体具有相对较大的繁殖输出。因雌体繁殖会滞缓其生长，小母体具有相对较大的繁殖输出至少部分地解释了成年原尾蜥虎雌性小于雄性。For studying collected from a suburb in the breeding ecology of Bowring＇s Gecko （Hemidactylus bowringii）, 761 Geckos were Zhaoqing , Guangdong Province, China. The minimal reproductive female is 45.68 mm SVL, and individuals which are larger than this size are regard as adults. It is obvious that the adult geckos in body size and head size have the sexual dimorphism, and the neonates and juveniles geckos have not sexual dimorphism. When the females are fed in the laboratory, they have the ability of laying eggs multiple times per year from late Apill to mid-August. The coefficient of variability in egg size （ egg mass） is 0. 12. Most of geckos lay two eggs, and only a few geckos lay single one. There are no correlations between egg size, clutch size and maternal size （SVL）. But there is a negative correlation between relative clutch mass and maternal SVL, which indicates that smaller reproductive females have relatively greater reproductive output. Because a female reproduction retards her growth and the smaller females have the relatively greater reproductive. It can partly explain why females have the smaller adult size than that of males.

关 键 词：壁虎科 原尾蜥虎 个体大小 头大小 雌性繁殖 

分 类 号：Q959.62[生物学—动物学]