CR

Williams' Bright-eyed Frog

Boophis williamsi

Declining

Overview

Boophis williamsi is a species of frog in the family Mantellidae endemic to Madagascar. Its natural habitats are subtropical or tropical moist montane forests, subtropical or tropical high-altitude grassland, rivers, and heavily degraded former forests. It is threatened by habitat loss.

Boophis williamsi faces severe threats primarily from habitat destruction due to deforestation and agricultural expansion in Madagascar's remaining forest fragments. The species' extremely limited range and specialized habitat requirements make it particularly vulnerable to environmental changes and human encroachment.

Threat summary

Habitat

This species inhabits montane rainforests and humid forest areas in eastern Madagascar, typically found near streams and water bodies within primary forest at elevations between 900-1,200 meters.

Forest· majorForest - Subtropical/tropical moist lowland· majorSavanna· majorShrubland· majorWetlands (inland) - Permanent rivers/streams· major

Conservation measures underway

Site/area protectionHabitat & natural process restorationSpecies recoveryEx-situ conservationCompliance and enforcement

Other threatened species in MANTELLIDAE

VU

Boophis vittatus

Declining
VU

Bernhard's Mantella

Mantella bernhardi

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VU

Gephyromantis ambohitra

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EN

Spinomantis brunae

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Threatened in Madagascar

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Lepiota echinella

Unknown
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Montipora calcarea

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Nasolo's Shrew TenrecVU

Nasolo's Shrew Tenrec

Microgale nasoloi

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EN

Pseudoxyrhopus kely

Declining

Frequently asked questions

Why is Williams' Bright-eyed Frog classified as Critically Endangered?
Williams' Bright-eyed Frog 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. Boophis williamsi faces severe threats primarily from habitat destruction due to deforestation and agricultural expansion in Madagascar's remaining forest fragments. The species' extremely limited range and specialized habitat requirements make it particularly vulnerable to environmental changes and human encroachment.
Where does Williams' Bright-eyed Frog live?
Williams' Bright-eyed Frog occurs in Madagascar. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Williams' Bright-eyed Frog?
The main threats to Williams' Bright-eyed Frog are 11.1, 2.1, 2.3, and 5.3. The full IUCN-classified threat record for this species is detailed on the species page.

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