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为了研究两栖类配偶选择机制与其两性形态特征之间的关系,在实验室条件下以东北林蛙(Rana dybowskii)为研究对象,采用统计学的方法对其体重、体长、头长、头宽、眼间距、前肢长、后肢长7项形态指标进行测量后分析。结果表明:参与繁殖(抱对)的雌性东北林蛙的身体形态显著大于未参与繁殖(未抱对)的雌性东北林蛙;影响抱对的第1主成分包括体重、体长、头长、头宽、后肢长,第2主成分包括眼间距、前肢长。
In order to study the relationship between the amphibian spouse selection mechanism and morphological characteristics of the two sexes, Rana dybowskii was used as a research object in laboratory conditions. The body weight, body length, head length, head width , Interocular distance, forelimb length, hind limb length 7 morphological indicators were measured after the analysis. The results showed that the body morphology of female Rana nivalis were significantly larger than that of the female Rana chensinensis which did not participate in reproduction. The first principal component affecting body weight included body weight, body length, head length, Head width, hindlimb length, the second main component includes the eye distance, forelimb length.