Porto Alegre Golden-eyed Tree Frog

Porto Alegre Golden-eyed Tree Frog

Trachycephalus mesophaeus

Silhouette: Lauren McLean · PhyloPic

LCLeast ConcernNTVUENCR Endemic
Daily sighting probability ~30% · Possible
at Chapada Diamantina National Park

In 3 days ~70% in a week ~90%

11 Verified sightings at Chapada Diamantina National Park From 2019 to 2026
11 In 1 park
March Best month
☀️🌙 Day & Night When it's spotted

About the Porto Alegre Golden-eyed Tree Frog

Trachycephalus mesophaeus is a species of frog in the family Hylidae. It is endemic to eastern Brazil and occurs in the Atlantic Forest between Pernambuco and Rio Grande do Sul, extending inland to central Minas Gerais. It is found at elevations below 800 m (2,600 ft). Common name Porto Alegre golden-eyed treefrog has been coined for it, Porto Alegre being its type locality.

Trachycephalus mesophaeus occurs in primary and secondary forest and forest edge on vegetation near waterbodies. Breeding is explosive and takes place in both temporary and permanent ponds. The egg clutches float on the water.

Trachycephalus mesophaeus is an abundant species that can be threatened by clear cutting and water pollution. Wikipedia →

Sounds

Recording0:12

Brazil · 2025

© Jonas Franke Raupp · iNaturalist · CC BY-NC 4.0

Recording0:11

Brazil · 2025

© Luís A. Funez · iNaturalist · CC BY-NC 4.0

Recording0:31

Brazil · 2024

© Bruce Neville · iNaturalist · CC BY-NC 4.0

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Chapada Diamantina National Park 🇧🇷 Brazil
~30%

More parks will be added in future updates.

Zoos & Centres Where Found

# Zoo / Centre Country
1 São Paulo Zoo 🇧🇷 Brazil In captivity

Before you go

What are the chances of seeing a Porto Alegre Golden-eyed Tree Frog in Chapada Diamantina National Park?

Possible

About 30% of wildlife watchers report a Porto Alegre Golden-eyed Tree Frog sighting in Chapada Diamantina National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 2nd most-seen of the 5 amphibians we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.

When is the best time to see a Porto Alegre Golden-eyed Tree Frog in Chapada Diamantina National Park?

March

In that month about 50% of wildlife watchers report a Porto Alegre Golden-eyed Tree Frog in Chapada Diamantina National Park on a given day, against under 5% in February, April–July and September–October, the lowest months.

What time of day is best to see a Porto Alegre Golden-eyed Tree Frog?

Between 7 and 10 pm

Across all the parks we cover, that three-hour window holds the most Porto Alegre Golden-eyed Tree Frog sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.

Where else can you see a Porto Alegre Golden-eyed Tree Frog?

Only Chapada Diamantina National Park, in our data

Chapada Diamantina National Park is the only park on Wallace's Line with enough records to rate Porto Alegre Golden-eyed Tree Frog sightings: about 30% of wildlife watchers there report one on a given day.

Where does the Porto Alegre Golden-eyed Tree Frog sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Porto Alegre Golden-eyed Tree Frog is recorded against all the amphibians logged in Chapada Diamantina National Park (11 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.

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