CR

Eleutherodactylus unicolor

Declining

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Eleutherodactylus unicolor faces severe threats from habitat destruction due to agricultural expansion and urban development across its limited range in Puerto Rico. The species' small population size and restricted distribution make it extremely vulnerable to environmental changes and natural disasters, including hurricanes that can devastate remaining forest fragments. Invasive species introduction and potential disease outbreaks pose additional risks to this already critically endangered frog.

Threat summary

Habitat

This species inhabits montane rainforests and cloud forests in Puerto Rico, typically found in leaf litter and low vegetation in humid, shaded environments. It requires intact forest canopy and stable moisture levels for successful reproduction and survival.

Forest· majorForest - Subtropical/tropical moist montane· majorCaves and subterranean habitats· major

Conservation measures underway

Species recoveryAwareness & communications

Other threatened species in ELEUTHERODACTYLIDAE

Oriente Yellow-mottled FrogVU

Oriente Yellow-mottled Frog

Eleutherodactylus ricordii

Declining
Eleutherodactylus manantlanensisCR

Eleutherodactylus manantlanensis

Unknown
Eleutherodactylus amadeusCR

Eleutherodactylus amadeus

Declining
CR

Short-nosed Green Frog

Eleutherodactylus brevirostris

Declining

Threatened in Puerto Rico

EN

Leptocereus quadricostatus

Declining
Humped BladderwortCR

Humped Bladderwort

Utricularia gibba

Unknown
VU

Broadstripe Goby

Elacatinus prochilos

Unknown
Blind SnailVU

Blind Snail

Cecilioides acicula

Unknown

Frequently asked questions

Why is Eleutherodactylus unicolor classified as Critically Endangered?
Eleutherodactylus unicolor is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Eleutherodactylus unicolor faces severe threats from habitat destruction due to agricultural expansion and urban development across its limited range in Puerto Rico. The species' small population size and restricted distribution make it extremely vulnerable to environmental changes and natural disasters, including hurricanes that can devastate remaining forest fragments. Invasive species introduction and potential disease outbreaks pose additional risks to this already critically endangered frog.
Where does Eleutherodactylus unicolor live?
Eleutherodactylus unicolor occurs in Puerto Rico, and United States. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Eleutherodactylus unicolor?
The main threats to Eleutherodactylus unicolor are 11.1, 11.2, 8.1, and ai-1. The full IUCN-classified threat record for this species is detailed on the species page.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.