Fig. 5From: Importance of overstorey attributes for understorey litter production and nutrient cycling in European forestsOverview of all retained interaction terms and their influence on the total effect sizes of the retained predictor variables in the different forest types. Effect sizes were calculated by summing the estimated coefficients for the main and interactive effects, depicted in Fig. 4. Standard errors were calculated based on the models’ covariance matrices. Error bars denote 95% confidence intervalsBack to article page