Is the Blue Poison Dart Frog Endangered? What Sources Say
The blue poison dart frog (the “azureus” form of Dendrobates tinctorius) has no formal endangered category in the sources I could open, but it is widely described as rare and threatened. It lives on a few forest islands in southern Suriname. A 2015 survey found just 23 frogs. Pet-trade collecting, climate change, fire and disease are the main concerns raised. The sources disagree on some points, which are shown below.
The old version of this page stated that the blue poison dart frog is endangered because of habitat loss and the pet trade. The real picture is more careful. No formal Red List “endangered” label turned up in the sources I opened, yet specialists call the frog one of the most threatened poison frogs.
This page lays out what a peer-reviewed survey, the Toronto Zoo, the Aquarium of the Pacific and the Living Rainforest say, and where they disagree. I give no population estimate, since none is published in the sources I opened.
How this was made: prepared with AI assistance and checked against the sources listed at the end. Images are AI-generated illustrations, not photographs of real animals or products.
Key Takeaways
- The blue form lives only in a few small forest patches in southern Suriname, with blue morphs also reported far away in Guyana and Brazil.
- A June 2015 survey recorded 23 frogs across three forest islands.
- Sources do not agree on its IUCN status. One says the species was rated Least Concern in 2014 without covering this form; another says it has not been evaluated.
- Collection for the pet trade, climate change, fire and disease are named as threats.
- The survey authors saw no habitat loss on the islands between 1969 and 2004 satellite images.
- Local people who control access prohibit collection, which currently protects the frogs.
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Is the blue poison dart frog officially endangered?
It depends on which source you read. The Aquarium of the Pacific says the IUCN rated Dendrobates tinctorius as Least Concern in 2014, but that assessment did not specifically include the “azureus” form. The Living Rainforest says the IUCN has not evaluated this frog at all. The 2019 field study I read gives no formal category.
All three agree on the basic point. The frog is rare and restricted. The Aquarium of the Pacific and the Living Rainforest both say it is believed to be one of the most threatened of all poison dart frogs in Central and South America.
I could not open the IUCN page itself. Check the current Red List entry before quoting a category.
Where it lives
A 2019 study describes the blue form as restricted to a few forest islands in the Sipaliwini savanna of southern Suriname. Blue morphs also occur in Guyana and Brazil, more than 300 km away. The Toronto Zoo puts the Suriname habitat at 315 to 430 m elevation in small forest patches surrounded by dry savanna.
| Source | What it says about range |
|---|---|
| d’Orgeix et al. (2019) | A few forest islands in the Sipaliwini savanna, southern Suriname; blue morphs also in Guyana and Brazil, over 300 km away |
| Toronto Zoo | Southernmost Suriname, Sipaliwini savanna, in small isolated forest patches |
| Aquarium of the Pacific | Mainly Sipaliwini in Suriname, with a small fragment of the savanna extending into northern Brazil |
| The Living Rainforest | Suriname and northern Brazil, in a few isolated rainforest patches |
How many frogs are left?
The 2015 survey covered three forest islands with 50 m by 50 m plots. It recorded 23 frogs, 22 adults and 1 juvenile. The authors concluded that populations persist at all three historical sites.
Earlier counts were higher: 56 frogs in a 1997 report and 82 in 1968 and 1970. The search effort was also very different, about 115 person-minutes per frog in 2015 against about 10 in the earlier work.
The authors say that could indicate decline if other factors were equal, but differences in method limit direct comparison. In plain terms, the numbers hint at trouble but do not prove it.
Main threats, and where sources disagree
Each source emphasizes a different risk.
- Pet trade and collecting: the Toronto Zoo says the frogs are over-collected for the pet and zoo market. The survey found no evidence of illegal collecting, but warned that this is not proof it will not happen.
- Habitat loss: the Aquarium of the Pacific names deforestation, logging and farming. The survey authors saw no habitat degradation and no significant change in island size from 1969 to 2004, despite past fires.
- Climate change and fire: the survey authors say drought, climate change and fire could shrink the islands. They call climate change possibly the most serious threat apart from collection.
- Disease: the chytrid fungus (Bd) has not been documented in Suriname but is present in French Guiana and Brazil, the study says. The Living Rainforest lists chytrid as a threat.
What protects it today
The survey authors say the indigenous Trio people control access to the area and prohibit collection, which currently offers substantial protection.
The Aquarium of the Pacific says Suriname requires permission to visit the Four Gebroeders Mountains, and visitors may be checked on return to prevent poaching. It also says captive breeding in the United States and Europe meets some pet-trade demand.
Trade law is unclear. The Living Rainforest says the frog is on CITES Appendix II. The Aquarium of the Pacific gives conflicting statements on its own page. Check the CITES listing before buying or moving any dart frog.
A note on the word “poison”
The Toronto Zoo says wild frogs get their toxins from prey, especially ants, and that captive frogs fed crickets and fruit flies lose their toxicity. That is why captive-bred frogs are not the same risk as wild ones. For more, see our guide on whether pet dart frogs are poisonous.
What this means for hobbyists
If you want a blue dart frog, buy a captive-bred animal from a reputable breeder and ask for its origin. Do not buy wild-caught frogs. Rules vary by country and state, so check your wildlife agency. For care basics, see poison dart frog care.
Frequently Asked Questions
Is the blue poison dart frog on the IUCN endangered list?
The sources conflict. The Aquarium of the Pacific says the species was rated Least Concern in 2014 without covering this form. The Living Rainforest says it has not been evaluated.
How many blue poison dart frogs are left?
No total is published in the sources I opened. A 2015 survey found 23 frogs on three forest islands.
Where do blue poison dart frogs live?
In a few forest islands in the Sipaliwini savanna of southern Suriname. Blue morphs also occur in Guyana and Brazil.
Is habitat loss the main threat?
Not according to the 2019 survey, which saw no habitat degradation from 1969 to 2004. It names collection and climate change instead. Other sources name deforestation.
Are blue poison dart frogs poisonous in captivity?
The Toronto Zoo says captive frogs lose their toxicity because their diet lacks the compounds found in wild prey.
Does the pet trade harm the species?
The Toronto Zoo says it is over-collected. Captive breeding meets some of the demand, according to the Aquarium of the Pacific.
Bottom Line
The blue poison dart frog is not simply endangered or safe. It is a very rare form with a tiny range and limited data. The honest answer is that it is believed to be among the most threatened poison frogs, with several risks that could grow.
If you care about the species, support captive breeding and buy only from sellers who can show where their frogs come from.
Sources
- d’Orgeix et al. (2019), Amphibian and Reptile Conservation 13(2): survey of the blue morph of Dendrobates tinctorius in Suriname (PDF), accessed Survey counts, range, threats
- Toronto Zoo: Blue poison dart frog, accessed Habitat, diet, collection
- Aquarium of the Pacific: Blue poison dart frog, accessed IUCN note, threats, protection
- The Living Rainforest: Blue poison dart frog, accessed Status, threats, range
