The proportion of species pairs significantly departed from Heterogeneous Poisson model and the proportion of no fine-scale species interactions cross life forms.

Goodness-of-Fit tests were used to test the overall fit of the Heterogeneous Poisson model over 0−30 m distance interval with the 0.05 error rate under 199 simulations; Arbor-shrub indicates the fine-scale species interaction between arbor species and shrub species; Deciduous-Evergreen indicates the fine-scale species interactions between deciduous species and evergreen species.