Figure 4
From: Coral Reef Resilience, Tipping Points and the Strength of Herbivory

Dry weight of algae that developed on experimental tiles after (a) 1 and (b) 3 years plotted against relative levels of herbivory. Curves in both plots are the best fit hyperbolic function (for parameter estimates and 95% CIs see Supplementary Table 4). Note that in both years, the biomass of algae increases dramatically once herbivory is reduced to ~10% of ambient. There was a strong effect of experimental treatment on algal biomass after 1 and 3 years (ANOVA, F5,45 = 27.58, P < 0.0001 and F5,45 = 57.12, P < 0.0001, respectively). N = 10 replicates per level of herbivory.