Evolution of ecological traits in a native weed driven by the reproductive interference by allied alien species

当地一年生草本植物，婆婆纳polita lilacina，已被称为是在石头墙缝中发现。在本研究中，我证明了来自近缘外来种波斯葡萄的种间授粉降低了本地种的结实率，这导致了本地种的减少，原住民的原始栖息地是在地面上，种子-根据濑户岛的实验和实地调查，不同蚂蚁种类的扩散互惠共生有助于将栖息地改变为石墙环境内海。

A native annual herb, Veronica polita lilacina, has been known to be found at crevice of stone walls. In this study, I showed that the inter-specific pollination from the allied alien species, V. persica, decreased the seed-set of the natives and this caused the decrease of the natives, that the original habitat of the natives was on the ground and that the seed-dispersal mutualism with a diverse ant species helped to alter the habitat to the stone wall environment based on experiments and field surveys among islands in the Seto Inland Sea.