Figure 4. Effects of climatic, geographic and
phylogenetic distance of non-native host trees to their native congeners
on abundance, diversity and species richness of phytophagous (green
dots) vs. non-phytophagous (purple dots) insects (Heteroptera and
Coleoptera). Depicted are R2-values of linear models
where the different tree genera and insect taxa (i.e. beetles or true
bugs) were accounted for as co-variables [biodiversity
~ distance * host-tree-genera * insect-taxa (i.e.
Coleoptera/Heteroptera) + RDA1]. Details on the feeding guilds
summarized under phytophagous and non-phytophagous are given in the
methods section.