编号 zgly0000369920

文献类型 期刊论文

文献题名 Seed and Wasp Production in the Mutualism of Figs and Fig Wasps

作者 YaoJin-yan  ZhaoNan-xian  ChenYi-zhu  JiaXiao-cheng  DengYuan  YuHui 

作者单位 SouthChinaBotanicalGarden  SouthChinaBotanicalGarden 

母体文献 Forestry Studies in China;中国林学: 英文版 

年卷期 2005,7(1)

页码 25-28

年份 2005 

分类号 S663.3  Q948.122.2 

关键词 无花果  黄蜂  共生关系  繁殖  种子 

文摘内容 Figs (Moracea: Ficus) and fig wasps (Hymenoptera: Chlocloids: Agaonideae) depend on each other to complete their reproduction. Monoecious fig species and their pollinating wasps are in conflict over the use of fig ovaries which can either produce one seed or one wasp. From observation on Ficus virens Ait., we showed that female flowers with outer layer of ovaries(near to the wall of syconium) had no significant difference from that with inner and interval layer of ovaries (near to the syconium cavity), in which most seeds and wasps were produced. This meant that fig tree provided the same potential resource for seed and wasps production. Observation indicated that there was usually only one foundress in syconium at female flower phase and no competition pollinators. Measurement of the style length of female flowers and the ovipositor of pollinators indicated that most ovaries could be reached by pollinator's ovipositor. However, at the male flower phase, production of seeds was significantly more than that of wasps including non-pollinating wasps but there was no significant difference between seed and pollinating wasp production when without non-pollinating wasps produced. This result indicated that non-pollinating wasps competed ovaries not with seeds but with pollinating wasps for ovipositing. Bagged experiment showed that the sampling fig species was not self-sterile which was important for figs and wasps to survive bad season. Seed production in self-pollinated figs was not significantly different from total wasps ineluding non-pollinating ones. This might be related with the weaker competition among wasps since bagged figs were not easy to reach by wasps from outside。