Eleutherodactylus johnstonei
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~40% in a week ~70%
The Antilles coquí (Eleutherodactylus johnstonei), also known by the common names Johnstone's whistling frog, Montserrat whistling frog, Barbados whistling frog and Lesser Antillean whistling frog, is a species of frog in the family Eleutherodactylidae. It is native to the Lesser Antilles, but has spread across the world and is considered an invasive species.
Thomas Barbour first described the species in 1914, and gave it the specific name johnstonei after Robert S. Johnstone, Chief Justice of Grenada and the Grenadines, for his support of naturalists. The species similarity to Eleutherodactylus martinicensis, and the taxonomic history of Eleutherodactylus as a whole, has according to Hinrich Kaiser and Jerry D. Hardy Jr. been a source of confusion in determining which old publications are describing Eleutherodactylus johnstonei and which are describing a different species.
The snout-to-vent length of the species is around 35 mm (1.4 in) for females 25 mm (0.98 in) for males, but variation is high, especially so between different populations of the frog. Individuals have colourations ranging from brown to a greyish-tan, usually with colourful patterns... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Johnstone's Whistling Frog sighting in Caracas on a given day, based on 57 verified sightings from GBIF citizen-science data. It is the most-seen of the 6 amphibians we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
June and July
In those months about 30% of wildlife watchers report a Johnstone's Whistling Frog in Caracas on a given day, against under 5% in January–March and November, the lowest months.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Johnstone's Whistling Frog sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
2nd of 3
Of the 3 cities where we can rate Johnstone's Whistling Frog sightings, Caracas ranks 2nd at about 20%. The best odds are in Cali (Colombia, about 40%).
Same order: Anura
The closest relatives of the Johnstone's Whistling Frog that you can see in Caracas (order Anura, Frogs and Toads) are Banana Tree Dwelling Frog (about 10%), Smooth-skinned Ditch Frog (about 10%) and Eastern Cane Toad (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Johnstone's Whistling Frog is recorded against all the amphibians logged in Caracas (57 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.
