Figure 3 in Habitat structure and host plant specialization drive taxonomic andfunctional composition of Heteroptera in postfire successional habitats

Figure 3. Biplot of the best model redundancy analysis of the percentage of bugs within each trophic group in the 20 sampling plots (see best model in Table 6). Environmental variables: PCA1, PCA2, Sab, Gab, Tab, Trich (see Section 2 for explanation of variables). Arrows pointing from origin to each bug feeding group have been omitted for clarity. Abbreviations of bug feeding groups: Om, omnivorous; Zoo, zoophagous; Pol, phytophagous-polyphagous; Oli, phytophagous-oligophagous; Mon, phytophagous-monophagous. Abbreviations of the sampling plots: R1 to R5, Repeat-burnt; L1 to L5, burnt logged; S1 to S5, burnt logged and subsoiled; U1 to U5 control unburnt. Axis 1 (horizontal) was significant (permutation test: 199 permutations, F-ratio = 15.2342, P = 0.005), representing 46. 7% of the data variance. Axis 2 (vertical) was not significant (6.3% of explained variance; permutation test: 399 permutations, F-ratio = 2.0471, P = 0.100).