›› 2004, Vol. 47 ›› Issue (6): 787-792.

• 研究论文 • 上一篇    下一篇

鸡嗉果榕榕小蜂产卵时序与种群数量分析

甄文全1,2,黄大卫1,3*,杨大荣4,朱朝东1   

  • 出版日期:2004-12-20 发布日期:2004-12-20

Fig wasps associated with Ficus semicordata: oviposition timing and their population relationship

ZHEN Wen-Quan1,2, HUANG Da-Wei1,3*, YANG Da-Rong4, ZHU Chao-Dong1   

  • Online:2004-12-20 Published:2004-12-20

摘要: 榕树与传粉榕小蜂的互惠共生体系被多种非传粉榕小蜂利用。在同一个榕果中,具有较高种群密度的传粉榕小蜂和多种非传粉榕小蜂生存在一起并相互作用。通过野外观察和采样分析的方法,对鸡嗉果榕内5种榕小蜂(传粉榕小蜂Ceratosolen gravelyi;非传粉榕小蜂Apocrypta sp., Philotrypesis dunia, Platyneura cuniaSycoscaptertr ifemmensis)的产卵行为进行了研究。结果证明,鸡嗉果榕内生活的各种榕小蜂通过比较严格的产卵时序在榕果内产卵以占领不同的生态位,这反映了这些榕小蜂各自的生物学特性。自然种群数量分析表明,单个非传粉榕小蜂物种的种群数量几乎不与传粉榕小蜂种群数量呈负相关,而所有非传粉榕小蜂物种的种群个体总量与传粉榕小蜂的种群个体数呈正相关,这可能是多个物种共存于单个榕果内的进化适应。

关键词: 榕树, 榕小蜂, 产卵, 产卵时序, 物种共存

Abstract: Fig/fig pollinator mutualistic systems are exploited by non-pollinating fig wasps (NPFWs). Within a syconium, pollinators and non-pollinators are interacting with each other in high-density populations. We studied 5 species in the syconia of Ficus semicordata including the pollinator Ceratosolen gravely I, and NPFWs Apocrypta sp., Philotrypesis dunia, Platyneura cunia and Sycoscapter trifemmensis. These fig wasps lay eggs into a syconium in a strict oviposition timing, for occupying the diverse niches, which reflect their different biological traits. The population size of the single non-pollinating fig wasp (NPFW) species hardly shows the negative correlations with pollinator' s. The total population size of all NPFWs is positively correlated to the pollinator's. It might be the evolutionary adaptation for coexistence of the many species within a syconium.

Key words: Ficus, fig wasps, oviposition, oviposition timing, species coexistence