【摘要】 本文对采自我国西北、西南地区的散居型飞蝗标本之11个数量性状进行了主成分和判别式分析。个体水平上的主成分分析说明:飞蝗个体在空间上存在着连续变异。鉴于使用传统的形态测量方法有时难以在个体水平上明确划分亚洲飞蝗和东亚飞蝗,我们为这两个亚种的雌性和雄性分别建立了线性判别函数: V(雌性)=-35.37C+2.72Mr-1.71 V+4.31E/F V(雄性)=-17.22+9.11 H-5.64P-1.05F+3.17Mz 这里,当V(雌性或雄性)<0时,个体属于亚洲飞蝗,否则,属于东亚飞蝗。此外,本研究还利用这两个判别函数对我国部分飞蝗分布区的性质进行了初步分析。更多还原

【Abstract】 In this paper, 11 numerical characters of Locusta phase solitaria from morthwest and southwest of China were studied by means of principal components analysis (PCA) and discriminant analysis (DA). PCA shows that, on the individual level, Locusta have a eontinous variation in space. Considering the difficulity we met in the identification of L. migratoria rnigratoria L. and L. m. manilensis (Meyen) by using the traditional morphometric method, two linear diseriminant functions were calculated for female and male respectively: V(female)=- 35.37C+2.72Mx-1.71 V+4.31E/F; V(male)=- 17.22+9.11H-5.64P-1.05F+3.17Mz. Here, if V(female or male)<0, the individual belongs to L. m. migratoria, otherwise, it belongs to L. m. manilensis. In addition, by using the discriminant functions, the nature of some Locusta areas of China was analysised preliminarily.更多还原