Fig. 2

General scheme of the procedure used in three species as examples: Dendropsophus nanus (upper part) as a threatened species, Scinax uruguayus (middle part) as a non-threatened non-ubiquitous species, and Scinax squalirostris (lower part) as a ubiquitous species. From left to right: grid cells with presence according to both sources of information (upper maps: according to expert-criteria; lower maps: according to species records); the favourability models based on expert knowledge (E); the favourability models based on species records (R); their fuzzy union (E ∪ R) and their fuzzy intersection (E ∩ R)