(A) Differences in species richness of native species (Native) and invasive species (Invasive) between the low and high elevations. Different letters indicate a significant difference (p < 0.05) from multiple post hoc comparisons with holm-adjustment of one-way ANOVA. Two-dimensional NMDS ordination of all plots showed differences in species composition of (B) Native and (C) Invasive species at different elevations (the stress values equal to 0.12 and 0.04, respectively). Shadow ellipses represent 95% confidence intervals around the centroids for the point types.