生物多样性 ›› 1994, Vol. 02 ›› Issue (4): 204-209.  DOI: 10.17520/biods.1994033

• 论文 • 上一篇    下一篇

滇中高原湖泊鱼类多样性的研究*

杨君兴,陈银瑞, 何远辉   

  1. (中国科学院昆明动物研究所,昆明 650223)
  • 收稿日期:1994-01-21 修回日期:1993-04-10 出版日期:1994-11-20 发布日期:1994-11-20

Studies on fish diversity in plateau lakes Of the central Yunnan

Yang Junxing, Chen Yinrui, He Yuanhui   

  1. Kunming Institute of Zoology,Academia Sinica,Kunming 650223
  • Received:1994-01-21 Revised:1993-04-10 Online:1994-11-20 Published:1994-11-20

摘要: 依据历年馆藏的鱼类标本和资料,采用多元逐步回归与多项式逐步回归的分析方法,系统分析了滇中6个高原湖泊鱼类的物种丰度、特有种以及属的数目与7个主要湖泊环境因子之间的关系。分析结果显示,控制湖泊鱼类物种丰度、特有种数和属数的关键湖泊环境因子是湖泊面积和湖岸线长度;其中与湖泊面积呈显著正相关,而与湖岸线长度呈负相关。分析不停留于这一常规的横向比较,而是从历史生物地理学的角度,更深入一步揭示了滇中6个湖泊鱼类多样性的演化实质上是受湖泊的发育阶段所控制的。

AbstractBased on some 1100 specimens collected since 1958, the correlationship between fish diversity and 7 environmental factors of 6 lakes of central Yunnan are statistically investigated by employing multivariate andmultinomial stepwise regression analysis. Investigation reveals that the first and second determinantscontrolling the species richness, numbers of genera and endemic species of lacustrine fishese are respectivelythe area of the lakes and length of shoreline. The length of shoreline is negatively correlated to the lacustrinefish diversity and the area positively to the lacustrine fish diversity. Length of shoreline and area are the mainmorphometric characters indicating the development stage of a lake. Therefore lacustrine fish diversity isactually controlled by the development of the lake. A lake in the prime period usually has a relatively largerarea, shorter shoreline and a more rich fish diversity than a lake in the late period does.