植物群落の遷移にともなう受粉様式の変化 II. : 受粉型組成と遷移度との関係

抄録

A quantitative analysis of plant communities using the degree of succession (DS) and the pollination type composition based on the summed dominance ratio (SDR%) was applied to the herbaceous layer of various stages of secondary succession. The communities in the pioneer stage showed less than 100 in DS. The SDR% of the self-pollination and apogamous type in the pioneer stage is relatively higher than that of other stages. The SDR% of the wind pollination type was highest between 100 and 1000 in DS. The communities in this range of DS were mostly found in grasslands. The SDR% of the insect pollination type increased in the communities which are higher than 1000 in DS. The communities in this range of DS were observed particularly found in the understory of forests. These tendencies seemed to be an adaptation of constituent species to the pollination environment in the plant communities.