钝叶榕榕果内榕小蜂的产卵顺序及其群落结构  

Oviposition timing and community structure of Ficus curtipes fig wasps

作　　者：张凤萍[1,2] 杨大荣[1] 

机构地区：[1]中国科学院西双版纳热带植物园,昆明650223 [2]中国科学院研究生院,北京100049

出　　处：《应用生态学报》2009年第8期2005-2011,共7页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金项目(30571507;30670358);中国科学院知识创新工程青年人才领域前沿项目(KSCX2-YW-Z-003)资助

摘　　要：通过对钝叶榕榕小蜂行为的观察以及榕果内各类小花的统计,研究了钝叶榕12种榕小蜂的产卵行为和群落结构.结果表明:钝叶榕中除了传粉榕小蜂Eupristinasp.进入果腔产卵以外,还有2种非传粉榕小蜂(杨氏榕树金小蜂和Lipothymus sp.)与传粉榕小蜂在同一时期进入果腔产卵,其他9种非传粉榕小蜂(Walkerellasp.、Micranisa sp.、Sycophilomorpha sp.、Philotrypesis sp.、Sycosapter sp.、Sycobia sp.、Ficomila sp.、Ormyrus sp.和Sycophila sp.)在果外产卵;在钝叶榕榕小蜂群落中,传粉榕小蜂占整个群落总数的62.11%,是该群落的优势种,杨氏榕树金小蜂和Lipothymus sp.分别占整个群落总数的27.19%和4.71%,其他9种非传粉榕小蜂占5.99%.钝叶榕中的非传粉榕小蜂通过各自产卵时序和幼虫食性分化的繁殖策略来分配榕果中的资源,以实现自身繁殖.非传粉榕小蜂与传粉榕小蜂的数量变化呈显著负相关,但非传粉榕小蜂与榕果内的种子没有相关性.Through the behavioral observation of Ficus curtipes fig wasps and the counting of various kinds of flowerets in F. curtipes figs, the oviposition timing and community structure of 12 F. curtipes fig wasp species were studied. Besides the agaonid wasp Eupristina sp. , the two non-agaonid wasps Diaziella yangi and Lipothymus sp. could enter into F. curtipes figs and oviposit. The other nine non-agaonid fig wasps （Walkerella sp. , Micranisa sp. , Sycophilomorpha sp. , Philotrypesis sp. , Sycosapter sp. , Sycobia sp. , Ficomila sp. , Ormyrus sp. and Sycophila sp. ） oviposited outside the figs. In the fig wasp community, Eupristina sp. was the dominant species, accounting for 62. 11% of the total, D. yangi and Lipothymus sp. accounted for 27.19% and 4.71% , respectively, while the other nine non-agaonid fig wasp species only occupied 5.99%. The non-agaonid fig wasps produced their progeny through the reproduction strategies of oviposition timing and diet allocation of female flowerets, so as to sustain the fig-wasp mutualism. The individuals of non-agaonid fig wasp progeny had significant correlation with F. curtipes seed negative correlation with those production. of agaonid fig wasp progeny, but no correlation with F. curtipes seed production.

关 键 词：钝叶榕 传粉榕小蜂 非传粉榕小蜂 产卵时序 群落 

分 类 号：S718.7[农业科学—林学]