This Australian endemic occurs from the Kadanga State Forest in south-east Queensland to Gibraltar Range in north-eastern New South Wales. There is also an isolated population (genetically distinct, which also exhibits call differences) at Kroombit Tops in Queensland. It has been recorded from 200-1,000m asl.
Habitat and Ecology
This species occurs in shaded rainforest gullies and closed forest in association with fast-flowing rocky streams. It hides amongst rocks and thick vegetation, or is active at night on the ground and on low shrubs bordering streams. In winter adults form aggregations under rocks. Breeding occurs in spring and summer, and oviposition occurs in shallow water in quiet pools. About 360-730 eggs are laid cemented to rocks, twigs or the pool floor. The larvae metamorphose after 2-2.5 months.
Some declines have occurred in south-east Queensland (Brisbane Forest Park and Conondale Ranges). It occurs at low densities at some sites where seemingly suitable habitat exists.
Large areas of habitat have been and continue to be degraded by introduced stock (cattle and pigs), invasion of weeds, and timber harvesting. Upstream clearing and urban development have affected downstream flow regimes and water quality. Sick and dead individuals infected by chytrid fungus have been found at Main Range, Conondale Range and Kroombit Tops in Queensland, and this might be the major cause of declines in suitable habitats.
It is listed as Endangered in Queensland, and a few protected areas cover parts of its range.
The taxonomy of this species requires revision.
Jean-Marc Hero, Ed Meyer, John Clarke 2004. Litoria pearsoniana. In: IUCN 2014