Ranoidea pearsoniana
Silhouette: Vijay Karthick · PhyloPic
In 3 days ~50% in a week ~80%
Pearson's green tree frog (Dryopsophus pearsoniana), also known as the cascade tree frog, is a species of tree frog inhabiting rainforest creeks from north of Lismore, New South Wales, to Kenilworth, Queensland, with a disjunct population at Kroombit Tops Queensland, Australia.
The mountain stream tree frog may be conspecific to Pearson's green tree frog. Morphological differences have not been fully studied yet, but visible physical differences between frogs from Barrington Tops and Dorrigo, New South Wales, in comparison to frogs from south-eastern Queensland and northern New South Wales are discussed in a key on the leaf green tree frog page. These are representative of frogs described as D. barringtonensis and D. pearsoniana.
Pearson's tree frog is a small tree frog growing up to 45 mm in length. Its dorsal surface can range from completely light green, to a mixture of green and brown, or mostly brown in colour. Usually, black dots are scattered over the dorsal surface, but in some specimens, these dots may not occur. The belly is white or off white. A light brown/yellow stripe starts at the tip of the snout, across the nostril, eye, and tympanum... Wikipedia →
Recording0:28
Australia · 2020
© Andrew Rock · iNaturalist · CC BY-NC 4.0
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Australia · 2022
© Tony Eales · iNaturalist · CC BY-NC 4.0
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Australia · 2023
© rhett_dodd · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Springbrook National Park | 🇦🇺 Australia | |
| 2 | Lamington National Park | 🇦🇺 Australia |
Possible
About 20% of wildlife watchers report a Pearson's Green Tree Frog sighting in Springbrook National Park on a given day, based on 30 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 3rd most-seen of the 11 amphibians we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
December
In that month about 40% of wildlife watchers report a Pearson's Green Tree Frog in Springbrook National Park on a given day, against under 5% in April and July–August, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Pearson's Green Tree Frog sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Yes
Of the 2 parks where we can rate Pearson's Green Tree Frog sightings, Springbrook National Park has the highest daily chance: about 20%. Next come Lamington National Park (Australia, about 10%).
GBIF citizen-science records
It is estimated from how often the Pearson's Green Tree Frog is recorded against all the amphibians logged in Springbrook National Park (30 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
