This species occurs in the north-western lowlands of Ecuador, below 1,000m asl. It is likely to have a slightly larger range than currently known.
Habitat and Ecology
Individuals have been found in dense wet forest, as well as in a grassy field, cleared for cattle grazing (Brame and Wake 1963b). However, this does not necessarily suggest that the species adapts well to human-modified landscapes, and they might prefer regenerated forests. It breeds by direct development.
The current population status of this species is not known.
Agriculture, both crops and livestock, as well as logging are major threats to the species’ habitat.
Its range includes Reserva Ecológica Cotacachi-Cayapas.
Red List Status
Listed as Vulnerable because its Extent of Occurrence is less than 20,000 km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its forest habitat in northwestern Ecuador.
Luis A. Coloma, Santiago Ron, Mario Yánez-Muñoz, Diego Cisneros-Heredia, Ana Almendáriz 2004. Bolitoglossa sima. The IUCN Red List of Threatened Species 2004: e.T59207A11896341. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T59207A11896341.en .Downloaded on 17 January 2019