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

已知在石墙的缝隙中发现了一种当地的一年生草本植物--维罗尼卡紫丁香。在这项研究中，我根据实验和实地调查，证明了来自近缘外来物种V.persica的种间授粉减少了原住民的结实率，从而导致了原住民的减少，原住民的原始栖息地在地面上，以及与不同蚂蚁物种的种子传播互惠关系有助于将栖息地改变为石墙环境。

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.