Akaike Information Criterion (AICc) model results for the composition and structure of macroinvertebrate assemblages.

Model were ranked using Delta AIC. The column “Signal” indicates the direction, (+) positive and (-) negative, of the effect. The column “Model Parameters” indicates if the effects are (*) multiplicative or (+) additive. K, number of parameters in the model; AICc Wt, AIC weight; Cum. Wt, Cumulative AIC weight.