CR

Redbelly Toad

Melanophryniscus langonei

Declining

Overview

Melanophryniscus langonei is a critically endangered toad species endemic to the Atlantic Forest region of Brazil. This small amphibian belongs to the genus Melanophryniscus, which comprises several threatened species found in South America's montane environments. The species has an extremely restricted distribution range, making it particularly vulnerable to environmental changes and human activities.

Like other members of its genus, M. langonei likely inhabits high-altitude areas within the Atlantic Forest biome, one of the world's most threatened biodiversity hotspots. The Atlantic Forest has experienced severe deforestation, with less than 12% of its original coverage remaining.

This habitat destruction represents the primary threat to M. langonei, as urban expansion, agricultural conversion, and infrastructure development continue to fragment and eliminate suitable breeding and foraging areas. Climate change poses additional challenges, as shifting temperature and precipitation patterns may alter the specific microhabitat conditions required by this species.

The species' small population size and limited range make it extremely susceptible to stochastic events and genetic bottlenecks. Conservation efforts for M. langonei are likely integrated within broader Atlantic Forest protection initiatives, including the establishment of protected areas and habitat restoration programs.

However, the species' critical status indicates that current conservation measures may be insufficient to prevent further population decline. Research into the species' specific ecological requirements, breeding biology, and population dynamics is essential for developing targeted conservation strategies.

Melanophryniscus langonei faces severe threats from habitat destruction due to deforestation and fragmentation of Brazil's Atlantic Forest. Climate change and the species' extremely restricted range further compound these pressures, making populations highly vulnerable to environmental changes.

Threat summary

Habitat

This species inhabits high-altitude areas within Brazil's Atlantic Forest biome. The Atlantic Forest represents one of the world's most biodiverse yet threatened ecosystems, characterized by complex montane forest environments.

Conservation measures underway

Site/area protectionSpecies recoveryLegislation

Frequently asked questions

Why is Redbelly Toad classified as Critically Endangered?
Redbelly Toad 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. Melanophryniscus langonei faces severe threats from habitat destruction due to deforestation and fragmentation of Brazil's Atlantic Forest. Climate change and the species' extremely restricted range further compound these pressures, making populations highly vulnerable to environmental changes.
Where does Redbelly Toad live?
Redbelly Toad occurs in Brazil, and Uruguay. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Redbelly Toad?
The main threats to Redbelly Toad are 11.1, and 8.1. The full IUCN-classified threat record for this species is detailed on the species page.

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