生物多样性 ›› 2001, Vol. 09 ›› Issue (1): 73-79.DOI: 10.17520/biods.2001011

• 论文 • 上一篇    下一篇

云南横断山区小型兽类物种多样性与地理分布趋势

龚正达,吴厚永,段兴德,冯锡光,张云智,刘泉   

  1. 1 (云南省流行病防治所,大理 671000)
    2 (军事医学科学院微生物流行病学防治所,北京 100071)
  • 收稿日期:2000-09-27 修回日期:2001-01-19 出版日期:2001-02-20 发布日期:2001-02-20
  • 通讯作者: 龚正达

The species diversity and distribution trends of small mammals in Hengduan Mountains, Yunnan

GONG Zheng-Da , WU Hou-Yong , DUAN Xing-De , FENG Xi-Guang , ZHANG Yun-Zhi , LIU Quan   

  1. 1 Institute of Epidemiology of Yunnan province,Dali 671000
    2 Institute of Microbiology and Epidemiology,Academy of Military medical Sciences,Beijing 100071
  • Received:2000-09-27 Revised:2001-01-19 Online:2001-02-20 Published:2001-02-20
  • Contact: GONG Zheng-Da

摘要: 以云南横断山区的高黎贡山、怒山和云岭等重要山脉的7 个山系作为样区,进行小型兽类的垂直分布调查并参考有关资料,采用不同山系样区各垂直带小型兽类物种多样性指数的平均值作为指标,对横断山区小型兽类的地理分布趋势、规律和相关影响因素进行了研究。结果表明:小型兽类物种多样性的地理分布趋势是由南向北,由西向东呈递减的趋势。与此趋势变化密切相关的主要因素是纬度的影响,其次是水湿条件,另外还与小型兽类的密度,物种丰富度、地理环境(坡向)和垂直带的影响等因素有关。此外,对横断山区不同区域小兽物种密度高峰问题作了分析和讨论。

AbstractThe vertical distribution of small mammals was investigated in seven important mountain ranges of the Hengduan Mountains in Yunnan Province, such as Mt.Gaoligong and Mt.Yunling. The geographical distribution trends, rules and correlated variables were analyzed, based on the mean diversity indices of small mammals in the vertical zones of these ranges. The results demonstrated that the species diversity index decreased gradually from the south to the north and from the west to the east. The most important variables were latitude and rainfall. In addition, the peak of small mammals'density was analyzed and discussed in those areas.