猕猴颅骨变量和面角的性差研究

本文对27例(9♂,18♀)成年太行山猕猴颅骨有关变量进行单因素方差分析和多变量性别判别分析.结果表明,太行山猕猴的颅骨变量有明显的性别差异,15项变量中有9项性别间差异显著,其中3项变量有极显著性差异;颅骨的面角雄性较雌性小3.43°,颅骨单项变量性别判别率较低,范围在51.95%～74.10%之间,通过全模型和逐步选择法建立颅骨变量的判别函数,判别率分别为96.30%和74.10%.

Study on sex differentiation of the protasion and cranial variables of adult Macaca Mulatta in Taihang Mountains

27 Macaca mulatta mulatta's skulls distributing Taihang mountains were measured, one-factor variance analysis and multiple variables sex discriminant analysis were used to carry out the statistics. The results show: There is sexual differentiation between the skulls of male and female . Of all 15 variables, 9 have significant difference, in which 3 have highly significant one. Male's mean protasion is 3.43°smaller than female's. One variable's sex discriminant rates are lower which range from 51.95%～74.1%. By entering independent together and using stepwise method, the discriminant functions of skulls variables are establishde, which discriminant rates are 96.3% and 74.1% respectively.