Statistical analyses
To evaluate the number of taxa/OTUs present in the study area, a multimodel approach was implemented to fit asymptotes on the species and OTU accumulation curves. This approach considered 5 different accumulation models (Lomolino, Michaelis-Menten, Gompertz, asymptotic regression and logistic curve) and weighted them using the Akaike Information Criterion (AIC, (34) Aho et al 2014). For each curve, the accumulation model with the lowest AIC was selected. Accumulation curves and associated asymptotes were generated using the vegan R package. To estimate the sampling effort required to achieve a given proportion of asymptotes, we considered the model selected for accumulation curves. Then, we extracted the predicted number of samples producing a number of taxa/OTUs that outreached 90% and 95% of the asymptotes.