Macroecology
Environmental resistance (ER) of native community, measured by similarities between native and the invaded areas, may provide a complementary approach for predicting invasion risk when information on the niche or the identity of potential invaders is unknown. Using ER-based models, our research aims to identify the dominant drivers on the spread of invasive species and further predict the invasion dynamics under future climate. The research focus on invasive plants and animals in eastern US, and multiple ER measures are applied in ER models, including similarities in species assemblages, phylogenetic and functional traits, as well as similarities in climate, elevation, soil and human disturbances. These models were conducted for each invasive species and then evaluated by comparing the simulated results with the actual ranges. Finally, the invasion risk patterns and their future dynamics are revealed by overlapping the simulated ranges of all the species by their optimal ER model.