Fig 2. SEM’s representing plant community effects on arthropod diversity indices.

Effects of plant sown richness, total plant biomass and the presence/absence of the four plant functional groups on abundance (a and b), species richness (c and d), Shannon evenness (e and f) and dominance (g and h) for herbivores (left panels) and carnivores (right panels). The reported path coefficients are standardized, and colored paths are significant at the 0.05 level. Blue paths have a positive path coefficient, whereas red paths have a negative one. We report the p-value for the Chi-square test of the SEM’s along with the p-value for the root mean square error (RMSEA). R² value for the diversity indices are given in the indices box.