This species occurs on the Pacific slopes of the Sierra Madre del Sur de Chiapas, south-central Chiapas, Mexico, south-west to Guatemala and again in northern El Salvador (not mapped here), from 1,000-2,050m asl.
Habitat and Ecology
This stream-breeding amphibian exists only in cloud forests.
It is abundant in two localities in the Cuchumatanes, Guatemala. It is very rare in Mexico, where it is known from a single locality. Only one specimen is known from El Salvador.
The main threat to the species is habitat loss due to deforestation and transformation of the original forest habitats in both southern Chiapas and Guatemala for agriculture, logging, timber plantations, and human settlement. Since this is a relatively high-elevation, stream-breeding species, chytridiomycosis is a potential future threat, and has already led to declines in other species in this genus in Central America.
It is present in the Reserva de la Biósfera El Triunfo (Mexico) where a well-preserved forest still exists, but is not known from any protected areas in Guatemala, and there is a need for improved protection of suitable habitats for this species. Further survey work is needed to determine the status of populations in Mexico and El Salvador, and to assess the risk posed by chytrid.
Georgina Santos-Barrera, Luis Canseco-Márquez, Manuel Acevedo 2010. Plectrohyla sagorum. In: IUCN 2014