CR

Brazilian River Treefrog

Aplastodiscus flumineus

Unknown

Overview

Aplastodiscus flumineus is a species of frog in the family Hylidae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist montane forests and rivers. It is threatened by habitat loss.

Aplastodiscus flumineus faces severe threats from rapid urbanization and agricultural expansion throughout its limited range in southeastern Brazil's Atlantic Forest region. The species' dependence on pristine forest streams makes it particularly vulnerable to water pollution from agricultural runoff and urban development. Habitat fragmentation has isolated remaining populations, reducing genetic diversity and limiting dispersal opportunities between suitable breeding sites.

Threat summary

Habitat

This critically endangered tree frog inhabits pristine Atlantic Forest streams and adjacent riparian vegetation in southeastern Brazil. The species requires clean, fast-flowing water for reproduction and dense forest canopy for shelter and foraging.

Forest· majorWetlands (inland)· major

Conservation measures underway

Species managementSpecies recovery

Other threatened species in HYLIDAE

VU

Maracas Heart-tongued Frog

Phyllodytes tuberculosus

Declining
VU

Papallacta Treefrog

Hyloscirtus psarolaimus

Declining
VU

Scinax rupestris

Unknown
CR

Nyctimantis pomba

Declining

Frequently asked questions

Why is Brazilian River Treefrog classified as Critically Endangered?
Brazilian River Treefrog 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. Aplastodiscus flumineus faces severe threats from rapid urbanization and agricultural expansion throughout its limited range in southeastern Brazil's Atlantic Forest region. The species' dependence on pristine forest streams makes it particularly vulnerable to water pollution from agricultural runoff and urban development. Habitat fragmentation has isolated remaining populations, reducing genetic diversity and limiting dispersal opportunities between suitable breeding sites.
Where does Brazilian River Treefrog live?
Brazilian River Treefrog occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Brazilian River Treefrog?
The main threats to Brazilian River Treefrog are 1.1, 1.3, 11.1, and 6.1. The full IUCN-classified threat record for this species is detailed on the species page.

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