图1. 榕树及其传粉榕小蜂之间的相互作用关系图。a, 榕小蜂为榕树传粉, 榕树为榕小蜂提供营养和栖息地, 二者之间表现为互利共生关系; b, 传粉榕小蜂投机者不执行传粉功能, 但是仍在利用榕树的资源, 榕树对投机者进行寄主惩罚, 二者之间形成对抗关系。c, 在雌花资源充足与否的两种情况下, 榕树与传粉榕小蜂表现出合作关系或者竞争关系。本图根据Wang等(2011)整理。

Fig. 1. The interaction between figs and their fig pollinating wasps. a, the mutualism was based on figs offering nutrition and habitat to the wasp and the wasps pollinating the figs; b, pollination cheating and host sanction lead to antagonism relationship between fig and fig pollinating wasp; c, cooperation or competition between fig and fig pollinating wasp was dependent on the supply of common resource (according to Wang et al, 2011).