Stresemann's Bristlefront
CR

Stresemann's Bristlefront

Merulaxis stresemanni

Declining

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Stresemann's_bristlefront

Overview

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

Merulaxis stresemanni faces severe threats from deforestation and habitat fragmentation in Brazil's Atlantic Forest, one of the world's most endangered biomes. Mining activities and agricultural expansion have destroyed much of its specialized understory habitat, while the species' extremely limited range makes it particularly vulnerable to local extinctions. Climate change poses additional pressure through altered precipitation patterns that affect the humid forest conditions this species requires.

Threat summary

Habitat

This species inhabits the dense understory of Atlantic Forest remnants in southeastern Brazil, preferring humid primary and secondary forests with thick leaf litter. It requires areas with dense vegetation cover and is typically found in mountainous regions between 400-1,200 meters elevation.

Forest· majorWetlands (inland) - Permanent rivers/streams· major

Conservation measures underway

Site/area protectionHabitat & natural process restorationSpecies managementSpecies recoveryEx-situ conservationAwareness & communicationsCompliance and enforcementLinked enterprises & livelihood alternatives

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Frequently asked questions

Why is Stresemann's Bristlefront classified as Critically Endangered?
Stresemann's Bristlefront 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. Merulaxis stresemanni faces severe threats from deforestation and habitat fragmentation in Brazil's Atlantic Forest, one of the world's most endangered biomes. Mining activities and agricultural expansion have destroyed much of its specialized understory habitat, while the species' extremely limited range makes it particularly vulnerable to local extinctions. Climate change poses additional pressure through altered precipitation patterns that affect the humid forest conditions this species requires.
Where does Stresemann's Bristlefront live?
Stresemann's Bristlefront occurs in Brazil. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Stresemann's Bristlefront?
The main threats to Stresemann's Bristlefront are 11.2, 2.2, 2.3, and 7.1. The full IUCN-classified threat record for this species is detailed on the species page.

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