Figure 4 in Sampling fossil floras for the study of insect herbivory: how many leaves is enough?

Figure 4. Damage type (DT) diversity, the herbivory index (percentage of leaf area removed), and the proportion of specimens excluded, calculated with different specimen area restrictions, for the four primarily and secondarily dominant Permian plant hosts represented by fewer than 400 specimens. The dashed gray line represents the mean value calculated for the complete dataset, and the dotted gray lines represent the 95 % confidence intervals for the complete dataset. For the complete datasets, all specimens with a surface area above 0.5 cm2 were examined. The 95 % confidence interval for each subsampling routine is represented by a light gray rectangle bounded by black lines. The thick black lines represent the mean values for each subsampling routine.