Figure 2. Attraction patterns towards light traps based on species richness and abundance for the total of samples (a), expressed per trap-day for each sampling site (c, d and e) and for the overall data (b). A median (bar), quartiles (box), a minimum and a maximum (whisker) and outliers of species richness or abundance for each sample are represented as box-whisker plots. Comparisons are based on Kruskal–Wallis and subsequent post-hoc test; traps with the same letter indicate no difference in the value of species richness or abundance.