Yasuni Bromeliad Treefrog

Yasuni Bromeliad Treefrog

Osteocephalus yasuni

Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~20% · Possible
at Cuyabeno Wildlife Reserve
28 Verified sightings at Cuyabeno Wildlife Reserve From 2019 to 2026
58 Verified sightings across all 2 parks From 2019 to 2026
November Best month highest sighting rate
🌙 Nocturnal When it's spotted during nighttime hours (6pm–6am)

About the Yasuni Bromeliad Treefrog

Osteocephalus yasuni is a species of frogs in the family Hylidae. It is found in the upper Amazon Basin in southern Colombia (Amazonas and Caquetá Departments), Ecuador, and northeastern Peru (Loreto Region) at elevations of 70–250 m (230–820 ft) above sea level. The specific name yasuni refers to the Yasuni National Park where its type locality is.

Males measure 44–56 mm (1.7–2.2 in) and females 43–62 mm (1.7–2.4 in) in snout–vent length. The dorsum is brown with dark brown spots. The ventral coloration varies, from bright yellow to yellowish cream in adult males and cream in adult females. Males have rough skin while females have smooth skin. It has expanded discs on the fingers.

The species' natural habitats are tropical primary moist forests, in both terra firme and seasonally flooded forests. It breeds in temporary pools. It is nocturnal, although during some months males can be heard calling during the daytime.

It is locally affected by habitat loss, but there are no major threats to this reasonably abundant and widespread species. It occurs in a number of protected areas, including its namesake Yasuni National Park. Wikipedia →

Closest Relatives at Cuyabeno Wildlife Reserve

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Yasuní National Park 🇪🇨 Ecuador
~20%
2 Cuyabeno Wildlife Reserve 🇪🇨 Ecuador
~20%

Quick answers

What are the chances of seeing a Yasuni Bromeliad Treefrog in Cuyabeno Wildlife Reserve?

About 20% of wildlife watchers report a Yasuni Bromeliad Treefrog sighting in Cuyabeno Wildlife Reserve, based on 28 verified sightings from GBIF citizen-science data.

When is the best time to see Yasuni Bromeliad Treefrog in Cuyabeno Wildlife Reserve?

November has the highest sighting rate for Yasuni Bromeliad Treefrog in Cuyabeno Wildlife Reserve in our monthly data.

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