The researchers studied how removing rare species affects the analysis of species and their environment in Dongling Mountain. They found that eliminating rare species improved the understanding of the relationship between species and the environment. The results showed a significant correlation between species and environmental variables. Removing rare species led to a better explanation of this relationship, especially when there were fewer environmental factors. The distribution of environmental variables, samples, and species was similar in both methods. Overall, the findings suggest that eliminating rare species can enhance the interpretation of species-environment relationships in the study area.