生物多样性 ›› 1997, Vol. 05 ›› Issue (1): 67-71.DOI: 10.17520/biods.1997011

• 论文 • 上一篇    下一篇

东亚飞蝗与亚洲飞蝗的主成分及判别式分析*

刘志斌,郑哲民,王青川   

  1. (陕西师范大学动物研究所,西安 710062)
    (陕西师范大学数学系,西安 710062)
  • 收稿日期:1995-05-04 修回日期:1996-07-17 出版日期:1997-02-20 发布日期:1997-02-20

The principal components and discriminant analysis of numerical characters of Locusta migratoria Migratoria L. and L.m.manilensis (Meyen) phase solitaria

Liu Zhibin,Zheng Zheming,Wang Qingchuan   

  1. 1)Institute of Zoology,Shaanxi Normal University,Xian 710062
    2)Department of Mathematics,Shaanxi Normal Universtiy,Xian 710062
  • Received:1995-05-04 Revised:1996-07-17 Online:1997-02-20 Published:1997-02-20

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+2.72Mx-1.71V+4.31E/F
V(雄性)=-17.22+9.11H-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。

关键词: 渔业现状, 可持续利用, 色林错, 藏北

Abstract

In this paper,11 numerical characters of Locustaphase 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 continous variation in space.Considering the difficulity we met in the identification of L.migratoria migratoria L.and L.m.manilensis (Meyen) by using the traditional morphometric method,two linear discriminant functions were calculated for female and male respectively:
V(female)= - 35.37C+2.72Mx - 1.71V+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.

Key words: fishery status, sustainable utilization, Selincuo Lake, northern Tibet