Fig 3.
The niche breadth of the microbial community and the contributions of various ecological processes to the microbial community. (A) The niche breadth of the microbial community. (B) Fit of the neutral community model. The blue and red circles represented ASVs that occurred more and less frequently than predicted, respectively. The solid black line donated the best fit to the neutral community model, and the dashed black lines represented the 95% confidence intervals. Nm was the product of metacommunity size and migration rate, and R2 represented the model’s fit. (C) Details the contributions of five distinct ecological processes to the microbial community: heterogeneous selection (HeS), homogeneous selection (HoS), dispersal limitation (DL), homogenizing dispersal (HD), and drift (DF).