| Summary: | 碩士 === 國立中興大學 === 昆蟲學系 === 88 === The present study aims to investigate various aspects of Ficus irisana Elm. and it''s fig wasps, such as phenology, biology, and the relationship between fig trees and fig wasps and that among fig wasps. The main flowering season of F. irisana was from June to December during which both male and female figs had two to four crops. The amount of figs would increase as the temperature rose and decreased as the precipitation increased. The number of figs and the duration of fig wasps were strongly affected by the coexistence of female phase and male phase figs. Seven species of fig wasps in three families were found, namely Kradibia commuta, Philotrypesis sp., Sycoscapter sp., Herodotia sp., Sycophila sp. 1, Sycophila sp. 2 and a species of Braconidae. K. commuta was the pollinator which had sternal corbiculae and coxa pollen comb at fore legs. Since the amount of male flowers were relatively lower and concentrated around ostile, the pollinators were assumed to conduct active pollination for it''s host plant. Furthermore, the study showed the non-pollinators, Philotrypesis sp. and Sycoscapter sp., alwasys appered along with the pollinators. They penetrated their ovipositors through the interflorence phase figs and laid eggs. The relationship among these three fig wasps were as follow: Philotropesis sp. was an inquiline which lived in galls forms by pollinators, whereas Sycoscapter sp. was a parasitoid in Philotrypesis sp.. The non-pollinators would greatly reduced the number of pollinators and therefore had a negative impact on the mutualism between F. irisana and it''s pollinators.
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