CR

Choerophryne siegfriedi

Declining

Overview

Choerophryne siegfriedi is a species of frog in the family Microhylidae. It is endemic to Papua New Guinea and is only known from its type locality, Mount Elimbari in the Simbu Province.

Choerophryne siegfriedi faces severe threats from habitat destruction due to logging and agricultural expansion within its extremely limited range in Papua New Guinea's montane forests. The species' restriction to high-elevation cloud forests makes it particularly vulnerable to climate change impacts, as warming temperatures force suitable habitat upslope with nowhere left to retreat. Mining activities and infrastructure development in the region pose additional pressures on the remaining forest fragments where this endemic frog persists.

Threat summary

Habitat

This species inhabits montane cloud forests and moss forests at elevations between 2,400-3,000 meters in the central highlands of Papua New Guinea. It requires pristine forest conditions with high humidity, dense moss coverage, and minimal human disturbance typical of these high-altitude ecosystems.

Forest - Subtropical/tropical moist lowland· major

Conservation measures underway

Species recoveryEx-situ conservationAwareness & communicationsPolicies and regulationsCompliance and enforcement

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Frequently asked questions

Why is Choerophryne siegfriedi classified as Critically Endangered?
Choerophryne siegfriedi 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. Choerophryne siegfriedi faces severe threats from habitat destruction due to logging and agricultural expansion within its extremely limited range in Papua New Guinea's montane forests. The species' restriction to high-elevation cloud forests makes it particularly vulnerable to climate change impacts, as warming temperatures force suitable habitat upslope with nowhere left to retreat. Mining activities and infrastructure development in the region pose additional pressures on the remaining forest fragments where this endemic frog persists.
Where does Choerophryne siegfriedi live?
Choerophryne siegfriedi occurs in Papua New Guinea. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Choerophryne siegfriedi?
The main threats to Choerophryne siegfriedi are 11.1, 2.1, 8.1, and ai-1. The full IUCN-classified threat record for this species is detailed on the species page.

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