This species occurs on the western slope of the Cordillera Oriental in the department of Santander, Colombia, between 1,900–2,700 m asl. It may be more widely distributed than existing records indicate. Its extent of occurrence (EOO) is 106 km2 and its AOO is estimated to be 8 km2.
Habitat and Ecology
This species lives in streams in cloud forest, but only in old growth forest. The eggs are laid on vegetation and the tadpoles larvae in streams.
This species was common, but recent surveys report a drastic decreasing of individuals in type locality due to highway projects. There are no records of it since 2010 (M. Rivera-Correa pers. comm. August 2016). Due to ongoing decline in the extent and quality of habitat, the population is suspected to be decreasing.
Habitat loss due to agriculture and cattle ranching, and predation by introduced trout are the major threats to this species. At the type locality, habitat loss is also occurring due to the ongoing highway project.
This species has not been recorded in any protected areas.
There is an urgent need for expanded protection of remaining forest habitats in the Colombian Andes.
Red List Status
Critically Endangered (CR)
Listed as Critically Endangered because its area of occupancy (AOO) is 8 km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its habitat on the Eastern Cordillera of the Colombian Andes resulting in an ongoing decline in the number of threat-defined locations.
This species was previously within the genus Hyla but has recently been moved to the resurrected genus Hyloscirtus (Faivovich et al. 2005).
IUCN SSC Amphibian Specialist Group 2017. Hyloscirtus lynchi. The IUCN Red List of Threatened Species 2017: e.T55546A85901655. http://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T55546A85901655.en .Downloaded on 17 January 2019