Extended Data Fig. 3: Relationship between grazing intensity and herbivore exclusion effects on plant diversity, richness and evenness.
Relationship between the log-transformed grazing intensity index and the LRR of (a) plant diversity, (b) richness and (c) evenness to herbivore exclusion (ln(fence/control)) in sites with a long (n = 20) or short (n = 23) evolutionary history of grazing. Sites included unfertilized control plots (green points) and plots fertilized with NPKµ (purple points). Trendlines were added when there were significant linear regressions between the LRRs and the grazing index and were produced using geom_smooth (ggplot2 package in R) regardless of fertilization, as this experimental treatment did not have a significant effect. The coloured bands represent the 95% confidence intervals.
