Fig. 2

Juveniles per capita (a) and body length [µm] (b) in the nematode bioassay as well as individuals per food source in the cafeteria experiment (c). Plectus acuminatus was incubated with and without the mucus of P. tenuis as well as protozoans (a, b). Number of C. elegans (c) per well containing E. coli, E. coli followed by mucus, mucus followed by E. coli, mucus, mucus with a water change or water. The data are presented in box-whisker plots. The median is indicated by the horizontal line, and the mean by the green rhombus (c). The boxes show the interquartile range, and the whiskers either the 5% or 95% percentile. In addition to the actual data, the fit obtained with LMMs is shown together with the 95% confidence interval (c R²c = 0.41). The results of a post hoc pairwise Wilcoxon rank sum test between the treatments are indicated as different letters for differences determined to be significant (a N = 20; b N = 200)