Dendropsophus nanus
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~10% in a week ~20%
Dendropsophus nanus, commonly known as dwarf treefrog, is a species of frog in the family Hylidae. It is found in northern Argentina, Paraguay, Uruguay, eastern Bolivia, Brazil, French Guiana, and Suriname. It is very common frog occurring in many habitat types and adapting well to anthropogenic disturbance. It inhabits herbaceous vegetation at the edge of standing water. Breeding takes place in temporary waterbodies.
The diet of Argentinean Dendropsophus nanus was found to consist mostly of dipterans and spiders. During the cold periods, these frogs partly rely on their fat reserves, more so than sympatric Hypsiboas pulchellus. Wikipedia →
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Brazil · 2026
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Brazil · 2026
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Brazil · 2024
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| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Campo Grande | 🇧🇷 Brazil | |
| 2 | Buenos Aires | 🇦🇷 Argentina |
Rare
Under 5% of wildlife watchers report a Dwarf Tree Frog sighting in Buenos Aires on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 10th most-seen of the 13 amphibians we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
January and March–April
In those months about 10% of wildlife watchers report a Dwarf Tree Frog in Buenos Aires on a given day, against under 5% in February and May–December, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Dwarf Tree 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 2
Of the 2 cities where we can rate Dwarf Tree Frog sightings, Buenos Aires ranks 2nd at under 5%. The best odds are in Campo Grande (Brazil, about 20%).
GBIF citizen-science records
It is estimated from how often the Dwarf Tree Frog is recorded against all the amphibians logged in Buenos Aires (14 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.
