Buergeria robusta
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~30% in a week ~60%
Buergeria robusta (robust Buerger's frog or strong stream frog) is a species of frog in the family Rhacophoridae. It is sympatric with Buergeria choui and Buergeria otai but is much larger in size. The species is endemic to Taiwan, where it is known by the name brown tree frog. Buergeria robusta is a common and widespread species found at low to medium altitudes. These frogs live mainly near the creeks or streams. They are locally threatened by habitat loss; they are also collected for consumption.
The genetic landscape of Buergeria robusta presents high congruence to the topography of Taiwan; populations on the eastern and western sides of the Central Mountain Range showed a prominent genetic divergence. Buergeria robusta are medium to large-sized treefrogs. Their body is stocky; males grow to 4–5 cm (1.6–2.0 in) in snout-vent length and females to 7–8 cm (2.8–3.1 in). The skin of the dorsum is smooth. The colour varies with the environment from brown or gray to greenish and to even yellow.
Breeding season is from February to September, when males can be found sitting and calling on tops of rocks. Eggs are deposited directly in water... Wikipedia →
Recording0:23
Taiwan · 2023
© taiwan_habu · iNaturalist · CC BY-NC 4.0
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Taiwan · 2023
© Larry Chen · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Robust Kajika Frog sighting in Taipei on a given day, based on 146 verified sightings from GBIF citizen-science data. It is the 12th most-seen of the 18 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
July to September
In those months about 20% of wildlife watchers report a Robust Kajika Frog in Taipei on a given day, against under 5% in February and October, the lowest months. Those are among Taipei's wettest months, with about 230 mm of rain a month against 90 mm in February.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Robust Kajika 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 cities where we can rate Robust Kajika Frog sightings, Taipei has the highest daily chance: about 10%. Next come Taichung (Taiwan, about 10%).
GBIF citizen-science records
It is estimated from how often the Robust Kajika Frog is recorded against all the amphibians logged in Taipei (146 verified sightings), 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.
