Rana huanrenensis
In 3 days ~10% in a week ~30%
The Huanren frog (Rana huanrensis) is a species of true frog found in East Asia. It was originally believed to be endemic to Huanren County, Liaoning, China, but was later also found in South Korea; it is presumed to be present in North Korea, as well. It is closely related to the Dybowski's frog, Rana dybowskii, and specimens collected before 1991 were incorrectly identified as that species. Distinguishing factors include the absence of a vocal sac.
The Huanren frog is found in and around rivers and streams in hilly terrain. The type locality in Huanren is 520 m (1,710 ft) above sea level, and specimens from Korea have also only been found at altitudes over 500 m (1,600 ft). Specimens from South Korea have been collected in the provinces of Gangwon-do, Gyeongsangbuk-do, and eastern Gyeonggi-do. Egg clutches, which are small and clustered, are deposited on submerged rocks in the streams which this species favors. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Seoul | 🇰🇷 South Korea |
With luck
About 10% of wildlife watchers report a Rana huanrenensis sighting in Seoul on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 9th most-seen of the 9 amphibians we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
February–April and October
In those months about 10% of wildlife watchers report a Rana huanrenensis in Seoul on a given day, against under 5% in May–September and November–January, the lowest months. Those are among Seoul's driest months, with about 50 mm of rain a month against 360 mm in July.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Rana huanrenensis sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Seoul, in our data
Seoul is the only city on Wallace's Line with enough records to rate Rana huanrenensis sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Rana huanrenensis is recorded against all the amphibians logged in Seoul (10 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.
