Volume 28 Issue 1
Jan.  2007
Turn off MathJax
Article Contents
ZHOU Wei*, PAN Xiao-fu, OU Xiao-hong, ZHANG Qing. Comparison of Food Components Between Rana pleuraden and Rana chaochiaoensis from Kunming and Evaluation of Their Benefit and Harm. Zoological Research, 2007, 28(1): 28-34.
Citation: ZHOU Wei*, PAN Xiao-fu, OU Xiao-hong, ZHANG Qing. Comparison of Food Components Between Rana pleuraden and Rana chaochiaoensis from Kunming and Evaluation of Their Benefit and Harm. Zoological Research, 2007, 28(1): 28-34.

Comparison of Food Components Between Rana pleuraden and Rana chaochiaoensis from Kunming and Evaluation of Their Benefit and Harm

  • Received Date: 2006-08-04
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2007-02-22
  • Food components of 1 105 individuals of Rana pleuraden and 428 Rana chaochiaoensis collected from Bailongsi, Huahongdong and Xijiekou of Kunming from May 1998 to November 2003 were analyzed by dissecting their stomachs. It was calculated that percentage of number and frequency, α diversity index, index of percent similarity, width of trophic ecological niche, overlap of trophic ecological niche and beneficial coefficient of the two frog species. According to results, major food components of different populations of R. pleuraden collected from different localities as well between R. pleuraden and R. chaochiaoensis were basically identical. However, there were differentiation in food diversity and trophic ecological niche between R. pleuraden and R. chaochiaoensis as well between their males and females. The annual beneficial coefficients of both R. pleuraden and R. chaochiaoensis were positive, which implied that their benefit for mankind was larger than harm. The beneficial level of R. pleuraden was higher than one of R. chaochiaoensis. The study results showed that beneficial coefficient could be changed among populations of a species collected from different regions and/or the same population collected from different seasons or years, which meant that the beneficial coefficient could not be compared. This coefficient only expressed the level of benefit and harm for mankind in the certain period.
  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (3165) PDF downloads(1801) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return