This species is known only from two sites in the upper Marcapata Valley, Provincia de Quipicanchis, in the Cusco Region of Peru. It has been found between 3,129 and 3,285 m asl (Lehr and Catenazzi 2009). A frog resembling this species was recorded in 2008 in a in two adjacent valleys, indicating that this may be a more widespread species than is presently recognized, but these records need to be verified (A. Catenazzi pers. comm. April 2017). It has been found between 3,129 and 3,285 m asl (Lehr and Catenazzi 2009).
Habitat and Ecology
This frog appears to be confined to the edge of remnant forest patches in transitional and undisturbed bunchgrass along streams, where animals have been found under rocks and moss at the base of the bunchgrass (Lehr and Catenazzi 2009). A single clutch of terrestrial eggs was found in the same area as this presumed direct-developing frog, and may be attributable to it (A. Catenazzi pers. comm. February 2011).
There is little information on the population size and trends of this species. It was first recorded in 1999, subsequent visits in 2008, 2016, and 2017 to this area relocated the frog at its type locality, but searches of the immediate surrounding area revealed no new records (A. Catenazzi and F.P. Condori pers. comm. April 2017).
Natural habitats in the upper Marcapata Valley have been heavily modified through deforestation, ongoing grazing, cultivation and associated burning regimes. The surviving forest is difficult to access, and it is unknown whether agricultural development represents a continuing threat to the grassland; however most evidence of agricultural disturbance is historical (A. Catenazzi pers. comm. February 2011). Rerouting of the main road away from this area may lessen the impact of future construction and improvement work (A. Catenazzi pers. comm. April 2017).
In 2008, the pathogenic chytrid fungus Batrachochytrium dendrobatidis was detected in one juvenile of this species in the Marcapata Valley (Catenazzi et al. 2011). This one documented case of infection was a living, apparently healthy specimen (A. Catenazzi pers. comm. February 2011). However, direct developing frogs such as this species are not likely to be affect by chytrid (A. Catenazzi pers. comm. April 2017).
This species is not known from any protected areas, although the inaccessibility of its habitat may afford it some protection from planned road construction (A. Catenazzi pers. comm. February 2011).
More research is needed on this species' distribution, population status, life history and threats.
Red List Status
Data Deficient (DD)
Listed as Data Deficient on the basis that it is known from a single location, it is not clear whether it is more widespread or whether it is subject to major threats, and no population information is available on this recently-described frog.
IUCN SSC Amphibian Specialist Group 2018. Bryophryne zonalis. The IUCN Red List of Threatened Species 2018: e.T190986A89223836. http://dx.doi.org/10.2305/IUCN.UK.2018-1.RLTS.T190986A89223836.en .Downloaded on 12 December 2018