Figure 2 in Sampling fossil floras for the study of insect herbivory: how many leaves is enough?

Figure 2. Damage type (DT) diversity, the herbivory index (percentage of leaf area removed), and the proportion of specimens excluded, calculated with different subsampling routines for the three primarily dominant Permian plant hosts represented by 400 or more specimens. The dashed gray line represents the mean value calculated from the complete datasets, and the dotted gray lines represent the 95 % confidence intervals calculated from the complete datasets. 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.