CR

Sao Paulo Treefrog

Boana clepsydra

Declining

Overview

Boana clepsydra, commonly called the São Paulo treefrog, is a species of frogs in the family Hylidae.

Boana clepsydra faces severe population decline primarily due to habitat destruction from agricultural expansion and urban development in its restricted Atlantic Forest range. The species is particularly vulnerable to water pollution and sedimentation affecting its breeding streams, while chytrid fungal disease poses an additional emerging threat to remaining populations.

Threat summary

Habitat

This critically endangered treefrog inhabits Atlantic Forest remnants in southeastern Brazil, specifically requiring pristine forest streams and adjacent riparian vegetation for breeding. The species depends on undisturbed canopy cover and clean, flowing water bodies within its highly restricted montane forest range.

Forest· major

Conservation measures underway

Species managementSpecies recoveryEx-situ conservation

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 Sao Paulo Treefrog classified as Critically Endangered?
Sao Paulo 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. Boana clepsydra faces severe population decline primarily due to habitat destruction from agricultural expansion and urban development in its restricted Atlantic Forest range. The species is particularly vulnerable to water pollution and sedimentation affecting its breeding streams, while chytrid fungal disease poses an additional emerging threat to remaining populations.
Where does Sao Paulo Treefrog live?
Sao Paulo 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 Sao Paulo Treefrog?
The main threats to Sao Paulo Treefrog are 1.1, 11.1, 2.1, and 4.1. The full IUCN-classified threat record for this species is detailed on the species page.

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