All analyses were performed in the Spatial Analysis for Macroecology – SAM software (Rangel 2010). For all models, we compute the Moran’s I and the Akaike Information Criterion (AIC) and the Variation of the AIC (∆AIC). To test the relative effects of different metacommunity processes, the variance was partitioned into: (i) environmental conditions; (ii) spatial processes; (iii) shared variance between the environmental and space; and (iv) not explained.