丽纹攀蜥头体大小的两性异形和繁殖期的生长

Sexual Dimorphism in Head and Body Size and the Growth during Reproductive Period in the Lizard,Japalura splendida

测定了丽纹攀蜥的体长、头长、头宽、头高、尾长和体重等形态指标 ,以及通过 4 4天的生长后体长、头长、头宽和头高的增长。表明成年两性个体体长无显著的两性异形 ,局部形态特征皆与体长呈正相关。协方差分析表明 ,雄性的头长、头宽、头高和尾长显著大于雌性个体 ,繁殖期雌性个体的体重显著大于雄性个体。丽纹攀蜥繁殖期雄性体长的增长显著大于雌性体长的增长 ,雌雄两性头长、头宽和头高的增长无显著的差异。

We measured some morphological traits,including the snout-vent length,head length,head width,head depth,tajl length,body mass and the growth of snout-vent length,head length,head width,head depth,taillength after 44 days in a population of Japalura splendida in Mt.Shennongjia(Environment Protection Area)in Hubei Province.Adult,J.splendida do not show sexual dimorphism in body size(SVL).All other morphological traits involved were positively correlated with the snout-vent length.An ANCOVA indicated that adult males have larger head length,head width,head depth,tail length and have smaller body mass during reproduction time than adult females.Male individuals’SVL grow at a remarkably greater speed than female individuals during reproduction time,while there does not exist apparent sex difference in the growth of head length,head width and head depth.