Volume 26 Issue 4
Jul.  2005
Turn off MathJax
Article Contents
YANG Cheng-yun, WANG Rui-wu, ZHAO Gui-fang, YANG Da-rong. Diet of Non-pollinating Wasps and Their Impact on the Stability of Fig-pollinator Wasp Mutualism. Zoological Research, 2005, 26(4): 379-385.
Citation: YANG Cheng-yun, WANG Rui-wu, ZHAO Gui-fang, YANG Da-rong. Diet of Non-pollinating Wasps and Their Impact on the Stability of Fig-pollinator Wasp Mutualism. Zoological Research, 2005, 26(4): 379-385.

Diet of Non-pollinating Wasps and Their Impact on the Stability of Fig-pollinator Wasp Mutualism

  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2005-08-22
  • Ficus (Moraceae) and their species-specific pollinator wasps (Agaonidae) form a remarkable plant-insect obligate mutualism, and non-pollinators are the exploiters of the mutualism. The negative impact of exploiters on the reciprocal mutualists might disrupt the reciprocal mutualism in the process of evolution, but how the exploiters could coexist with the reciprocal mutualsits is not still clear. In this study, the diet of the five species of non-pollinators and relationship among fig wasps were analyzed on Ficus racemosa L. in Xishuangbanna from Dec. 2003 to Apr. 2004. In a controlled experiment pollinators and each species of non-pollinators oviposited and counts of wasps and seeds in mature figs were conducted. The results indicated that only Platyneura testacea Motschulsky and Platyneura mayri Rasplus are gall-makers, which can induce the ovaries into galls; Apocrypta sp., Apocrypta westwoodi Grandi and Platyneura agraensis Joseph are the parasitoids. The gall-makers and the parasitoids of pollinators have negative impacts on pollinators, but the impacts are not significant because of the influence of the ants and parasitoids of gall-makers. Additionally, the experiment excluding non-pollinators oviposition showed that the number of offspring of pollinators and seeds were not significantly different with the natural fruits. Moreover, the analysis on the natural population structure of fig wasps revealed that the pollinators are the dominant species. So in the natural condition, the abundance of gall-makers and parasitoids of pollinators are below the level needed to exclude pollinators, and thus they have a relatively weak impact on the stability of fig-pollinator mutualism and can coexist with the mutualism.
  • 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 (2386) PDF downloads(2051) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return