Fig. 1. Temporal trends in γ and α stability.

γ stability (A), but not α stability (B), significantly increased over time during the 60-year succession. Points show 10-year temporal stability averaged across all observed fields (γ stability, A) or temporal stability averaged across all 48 plots among 10 fields of the same period (α stability, B). Error bars represent SEs. The x axis represents the initial year in each 10-year rolling window. Temporal trend lines, obtained from linear models accounting for temporal autocorrelation, are solid if significant (P < 0.05) and dashed if not significant.