Table 4. Results of the generalized linear mixed models (GLMMs) analysis of diatom species richness as function of physicochemical predictors.

Variable importance indicates the selection probability of each independent variable. Only significant variables (p<0.050) selected across all candidate models are presented.

Variable	Model-averaged coefficient	Adjusted SE	Variable importance
Intercept	3.115	0.569
DO	0.553	0.144	1.00
Soluble reactive phosphorus	-0.181	0.123	0.50
Turbidity	-0.187	0.094	0.65