This species is known from the tropical humid forest (Eastern tropical Altitudinal Zone) of Amazonian Ecuador, and from southern Colombia (departments of Putumayo and Caqueta). It is known from elevations of 250-650m asl. The known number of localities and Extent of Occurrence are likely to increase with more sampling effort.
Habitat and Ecology
This species lives under leaf-litter near streams and on overhanging banks of permanent streams in primary and secondary forest. They lay their eggs in the leaf-litter and then the males carry the tadpoles on their backs to the water where they develop. It is not recorded from any anthropogenic habitats.
This appears to be an uncommon species.
Habitat destruction and degradation might be a localized threat to the species. The natural vegetation of 14% of its distribution area in Ecuador (as defined by the GAA polygon) has been cleared by 1996 (based on Sierra, 1999 map).
Its distribution range overlaps with Parque Nacional Yasuni, and Reserva Biólogica Limoncocha in Ecuador. It is not recorded from any protected areas in Colombia. More research into the species' Extent of Occurrence and population status is desirable as it is likely that its range is larger than currently known.
Fernando Castro, Jose Vicente Rueda, Wilmar Bolívar, Ruth Amanda Estupinan, Ana Almendáriz 2004. Hyloxalus sauli. In: IUCN 2014