This species is known from two sites at San Luis in the upper Huayopata river drainage, near Abra Malaga in the Cusco Region of Peru (Provincia de La Convención). It occurs at elevations of 3,272–3,530 m asl (Lehr and Catenazzi 2009, Mamani et al. 2017).
Habitat and Ecology
This species is known from high montane cloud forest, where it has been found during the day under moss, leaf litter, logs and rocks. The species breeds by terrestrial direct development, with eggs laid amid ground mosses (Lehr and Catenazzi 2009, Mamani et al. 2017).
This species can be locally abundant, but exhibits a patchy distribution across its small known range (Lehr and Catenazzi 2009). Surveys in May 2014, November 2016, and February 2017 successfully located the species at known sites (Mamani et al. 2017, A. Ttito pers. comm. April 2017).
A road passes through the valley where this frog occurs, and there is evidence of past logging and agricultural activities (A. Catenazzi pers. comm. February 2011). These are thought to have declined following the creation of two protected areas, and are unlikely to have impacted the steep cloud forest where this species has been found (A. Catenazzi pers. comm. February 2011). The pathogenic chytrid fungus Batrachochytrium dendrobatidis has been recorded at nearby sites, and has been found to infect individuals of the related species Bryophryne cophites (Catenazzi et al. 2011). The fungus has not been found at elevations where B. gymnotis has been recorded (A. Catenazzi pers. comm. February 2011) and direct developing frogs such as this species are not likely to be affect by chytrid (A. Catenazzi pers. comm. April 2017).
This species occurs within the Abra Málaga Private Conservation Area, a private reserve between Málaga Chico and Río San Luis, established in 2007 (A. Catenazzi pers. comm. February 2011) and San Luis Private Conservation Area. No species-specific conservation measures are known to be in place. It is listed as Vulnerable (VU) in Peru and has legal protection provided by the Categorization in Endangered Species of Wild Fauna (Decreto Supremo Nº004-2014-MINAGRI), which bans all hunting, capture, possession, transport or export of the species for commercial purposes.
Further research is needed into this species' distribution, population status, and natural history.
Red List Status
Data Deficient (DD)
Listed at Least Concern because, although it has a restricted range – its estimated extent of occurrence (EOO) is 36 km2, the species is regularly encountered at known sites, it is well protected, and there are no ongoing or future threats.
IUCN SSC Amphibian Specialist Group 2018. Bryophryne gymnotis. The IUCN Red List of Threatened Species 2018: e.T190984A89223541. http://dx.doi.org/10.2305/IUCN.UK.2018-1.RLTS.T190984A89223541.en .Downloaded on 20 February 2019