Fig. 3
From: Stable isotope signatures reflect dietary diversity in European forest moths
The plots depict mean a δ15N and b δ13C values across moth feeding guilds. Whiskers represent the respective standard deviation. For illustrative purposes, guilds are arranged from lowest to highest mean and the order therefore differs between graphs. The compact letter display is based on pair-wise post hoc comparison with Tukey’s HSD correction. Different letters indicate a significant difference between the respective feeding guilds