摘要
对聚果榕小蜂 (Ceratosolensp )传粉生态学进行了首次研究。结果表明 ,聚果榕小蜂的雄蜂比雌蜂早羽化数小时 ;雌蜂羽化不能自行打开瘿花和果肉出蜂口 ,两个出蜂口均需雄蜂开凿。而聚果榕的成熟花粉 ,不能自行地从开裂处散发出来 ,必须经榕小蜂的繁殖性雌蜂采集才能散到表面。羽化后的雌蜂在开裂的雄花中不停地用触角柄节、口器上颚和足推动和采集花粉。雌蜂飞出熟榕果寻找嫩隐头花果 ,一般在外飞翔 5～ 80min。雌蜂进入嫩聚果榕的隐头花果内后 ,立即把粘附在足、头、触角和身上的花粉不停地推动到长柱头雌花中 ,授粉行为长达 4～ 9h。然后 。
The Ficus racemosa L. (1753) is a keystone plant species in the tropical rainforest in Xishuangbanna. The fig tree ( Ficus racemosa ) and fig pollination wasp ( Ceratosolen sp ) are highly coevolved species that depend completely on mutual benefit for continued reproduction.The main result of this study indicated that the earlier emerged male wasp cut the exit holes both from the gall and fig fruit for the female,which don't have the ability to cut the exit hole for themselves. In Ficus racemosa pollen tends not to escape from the anthers after dehiscence until the stamens are disturbed by the fig wasp. The females opened the anthers with the antennal scapes,mandible,leg and collected the pollen. The pollen bored females fly about 5-80 minutes to find the receptive syconia. As soon as a pollinating fig wasp reached the interior of the young fig fruit to be pollinated,it pushed its head among the stigmas for 4-9 hours,then oviposited in the short stigmas(gall flowers) of the fig.
基金
中国科学院"九.五"重大项目!(KZ95 1-A1-10 4)
云南省应用基础基金资助项目
关键词
西双版纳
热带雨林
聚果榕小蜂
传粉生态学
Xishuangbanna
Tropical rainforest
Ficus racemosa
Ceratosolen sp
Pollination ecology
