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猕猴牙齿的变异性研究

姚建初, 邵孟明, 潘汝亮, 彭燕章   

  1. 陕西省动物研究所,西安
  • 出版日期:2006-07-29 发布日期:2008-07-07

STUDIES 0N THE VARIATION 0F TEETH IN RHESUS M0NKEYS

YAO Jianchu, SHAO Mengming, PAN Ruliang, PENG Yanzhang   

  • Online:2006-07-29 Published:2008-07-07

摘要: 本文是猕猴(1dIacaca mulatta)7个亚种130个头骨的牙齿比较研究结果。在22项变量中,有12项表现出明显的性二型。对另外10项不等于22项的单因子方差分析表明,除M 2近中远倒距离(LM 2MDL)外,其余变量在7个亚种之间具有显著性差异。判别分析结果说明,其中6项变量虽对亚种的划分且有显著性贡献,但各亚种间的总判别率仅为32.56%,亦即牙齿结构在赫猴各亚种间的变异较小。6项变量组成的星状图表明,印度指名亚种与中国各亚种的牙齿形态有较大差异。在中国猕猴各亚种间,指名亚种mulatta (China)与福建亚种llttoralis和西藏亚种vestita与川西亚种lasiotis表现出较大的相似性。猕獭的牙齿结构随纬度不同呈现出梯度性变化。各亚种间的牙齿差异主要表现在大小或形状方面,这与不同亚种的个体大小相关。

关键词: 猕猴, 牙齿变异, 统计分析

Abstract: This article is the conclusion of the comparative study of teeth in 130 craniums(skutls)of 7 kinds of rhesus macaque subspecies.In 22 terms variables,12 terms display
obvious bisexual type.The unvariate analysis among the other ten terms,show that except LM 2M DL ,other variables among 7 subspecies possess obvious diversities The discriminant analysis shows that though 6 terms of all variables have remarkable contributions to the subspecies differentiating,the general discriminant ratio is only 32.56% between each subspecies,which illustrates that the variation of tooth shape in various rhesusmacaque subspecies was small.
In the star-symbol picture formed by 6 terms of variables,considerable differences of tooth pattern are shown between M acaca mutatta (India) and various Chinese subspecies.
The structure tooth in rhesus macaque show ladder-shaped changes in different latitudes,but the diversity of teeth of among various subspecies lies mainly in their size and shape. and relates to the individual size in various subspecies.

Key words: Rhesus monkey (Macaca mulatto), tooth variation, Statisticas