Table 3: Selected models explaining percentage of non-native plant species cover amongst roadside (a) and adjacent (b) vegetation for the different mycorrhizal types: Coefficients and their p-values (between brackets) for each type of mycorrhizal associations: Arbuscular Mycorrhizas (AM), Ecto-Mycorrhizas (EcM), Ericoid Mycorrhizas (ErM) and Non-Mycorrhizal (NM). Model selection was performed by selecting all models with a ΔAICc < 2 from the best model (i.e. Model 1) (in each case, there were two such models). Explanatory variables were mean annual soil temperature (‘Temp’), the percentage cover of native vegetation associated to each given mycorrhizal type (‘% cover’) and the interaction between these two factors. Green and orange fields are respectively positive and negative correlations. Gray fields represent explanatory variables that were not retained in a given model.
a) Roadside non-native plant species