Engystomops guayaco
family: Leptodactylidae
Species Description: Ron, S.R., Coloma, L.A. and Cannatella, D.C. 2005. A new, cryptic species ofPhysalaemus(Anura: Leptodactylidae) from western Ecuador with comments on the call structure of theP. pustulosusspecies group.Herpetologica: 178-198.
Conservation Status (definitions)
IUCN (Red List) Status Data Deficient (DD)
Other International Status None
National Status None
Regional Status None

Country distribution from AmphibiaWeb's database: Ecuador


View distribution map using BerkeleyMapper.


From the IUCN Red List Species Account:


Range Description

This species is known from 32-92m asl in eastern Guayas Province, western Ecuador.

Habitat and Ecology

It occurs in dry lowland deciduous and semideciduous coastal forest, where the trees are usually under 20m in height and there can be a dense understorey of herbaceous plants. All the individuals were found in open areas where the natural vegetation had been partly or completely removed by humans. Males were found calling from ditches and small ponds (even as small as 10cm in diameter) in pasture, and in a flooded rice field. After mating, floating foam egg masses are deposited at these same sites.


It can be locally abundant.

Population Trend


Major Threats

More than half of the land cover in this region has been converted to agriculture or cattle pasture, but this species does appear to be reasonably adaptable.

Conservation Actions

The type locality at Cerro Masvale is a private, protected reserve adjacent to the Reserva Ecológica Manglares Churute.

Red List Status

Data Deficient (DD)

Taxonomic Notes

In the Duovox clade of Ron et al. (2006).


Simon Stuart 2010. Engystomops guayaco. In: IUCN 2014


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