Figure 5

βNTI patterns from empirical comparisons (a) and simulated distributions (b), and fractions of ecological processes (c) in moisture pulse experiment. (a) βNTI values between different time points were fitted against Ln-transformed absolute differences in time. The statistics were from Mantel test (10000 permutations). Horizontal dashed lines represented values of +2 and −2 beyond which an individual β-deviation value was considered statistically significant. (b) βNTI distributions were obtained from kernel density estimates. (c) Bubble plot was used to show the fraction that selection, weak selection, drift coupled with dispersal limitation and the undominated process contribute to the community assembly. HS: homogeneous selection; VS: variable selection. LN: low nitrogen soil (N deposition rate: 5.25 g N m⁻² yr⁻¹); HN: high nitrogen soil (N deposition rate: 28 g N m⁻² yr⁻¹).