: Relationship between invasiveness and impacts of 32 invasive plant species on the Tibetan Plateau. (a) Outlier test of the model by the cook method, and one species (Dysphania schraderiana) that was excluded from the model. (b) The relationship between invasiveness and impact of the remaining 31 species was reexamined by a linear regression model. Invasiveness = R × A, Impact = R × A × E. R (range; the total number of plots occupied), A (local abundance; mean abundance in 1 m² plots where they occurred) and E (per capita effect on native abundance based on generalized linear modeling with a Poisson error structure).