Royal Tree Toad
CR

Royal Tree Toad

Hylodes regius

Unknown

Photo: Photo: (c) muriel_caipora, alguns direitos reservados (CC BY-NC)

Overview

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

Hylodes regius faces severe population decline primarily due to habitat destruction from urban expansion and agricultural conversion in Brazil's Atlantic Forest region. The species' dependence on pristine rocky streams makes it particularly vulnerable to water pollution and sedimentation from nearby human activities. Climate change poses an additional threat by altering precipitation patterns and stream flow regimes essential for this frog's breeding success.

Threat summary

Habitat

This species inhabits rocky streams and adjacent riparian vegetation within Brazil's Atlantic Forest biome. It requires clean, fast-flowing water with rocky substrates for breeding and is typically found at elevations between 500-1200 meters.

Forest· major

Conservation measures underway

Species managementSpecies recovery

Other threatened species in HYLODIDAE

VU

Ornate Tree Toad

Hylodes ornatus

Unknown
CR

Rio Spinythumb Frog

Crossodactylus grandis

Unknown
CR

Crossodactylus franciscanus

Unknown
EN

Crossodactylus timbuhy

Unknown

Frequently asked questions

Why is Royal Tree Toad classified as Critically Endangered?
Royal Tree 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. Hylodes regius faces severe population decline primarily due to habitat destruction from urban expansion and agricultural conversion in Brazil's Atlantic Forest region. The species' dependence on pristine rocky streams makes it particularly vulnerable to water pollution and sedimentation from nearby human activities. Climate change poses an additional threat by altering precipitation patterns and stream flow regimes essential for this frog's breeding success.
Where does Royal Tree Toad live?
Royal Tree Toad 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 Royal Tree Toad?
The main threats to Royal Tree Toad are 11.1, 8.1, ai-1, and ai-2. The full IUCN-classified threat record for this species is detailed on the species page.

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