Red-crowned Toadlet
VU

Red-crowned Toadlet

Pseudophryne australis

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Red-crowned_toadlet

Overview

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

The Red-crowned Toadlet faces severe population declines primarily due to urban development and infrastructure expansion across its limited Sydney Basin range. Habitat fragmentation from residential construction and road development has isolated remaining populations, while water pollution from urban runoff degrades the ephemeral pools essential for breeding. Climate change compounds these pressures by altering rainfall patterns that the species depends on for successful reproduction.

Threat summary

Habitat

The Red-crowned Toadlet inhabits sandstone plateaus and escarpments in the Sydney Basin, particularly areas with shallow ephemeral pools formed in rock crevices and depressions. It requires both terrestrial shelter sites under rocks and logs, and temporary water bodies for breeding during winter months.

Frequently asked questions

Why is Red-crowned Toadlet classified as Vulnerable?
Red-crowned Toadlet is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. The Red-crowned Toadlet faces severe population declines primarily due to urban development and infrastructure expansion across its limited Sydney Basin range. Habitat fragmentation from residential construction and road development has isolated remaining populations, while water pollution from urban runoff degrades the ephemeral pools essential for breeding. Climate change compounds these pressures by altering rainfall patterns that the species depends on for successful reproduction.
Where does Red-crowned Toadlet live?
Red-crowned Toadlet occurs in Australia. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Red-crowned Toadlet?
The main threats to Red-crowned Toadlet are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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