Phyllobates Terribilis Vivarium
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''Phyllobates'' is a genus of
poison dart frog Poison dart frog (also known as dart-poison frog, poison frog or formerly known as poison arrow frog) is the common name of a group of frogs in the family Dendrobatidae which are native to tropical Central and South America. These species are ...
s native to Central and South America, from Nicaragua to
Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...
. There are 3 different Colombian species of ''Phyllobates'', considered highly toxic species due to the poison they contain in the wild. ''Phyllobates'' contains the most poisonous species of frog, the golden poison frog (''P. terribilis''). They are typical of the poison dart frogs, in that all species have bright warning coloration (aposematism), and have varying degrees of toxicity. Only species of ''Phyllobates'' are used by natives of South American tribes as sources of poison for their hunting darts. The most toxic of the many poisonous alkaloids these frogs contain (in glands in their skin) is batrachotoxin, alongside a wide variety of other toxic compounds. Some populations of '' Phyllobates lugubris'' in Central America are not known to be toxic.


Taxonomy

''Phyllobates'' ( Ancient Greek for "leaf climber") used to contain many of the species which are now within the genus '' Ranitomeya''. However, it now just contains those six members within the ''Phyllobates bicolor ''species group. These are: All these different species within the genus exhibit a diversity in color. Some examples are, ''P. terribilis'', with color morphs of "mint", "yellow", and "orange". ''P. vittatus'', another example, is always black as a ground color, but can show yellow stripes, orange stripes, red stripes,(stripes of all colors can be seen in two forms, narrow- and wide-banded) and turquoise, green, or blue legs, etc. The bicolor dart frog ('' Phyllobates bicolor'') can range from yellow to orange, from black legs to green legs, to almost a uniform color of any of the aforementioned color morphs. ''P. aurotaenia'' specimens are yellow-banded or orange. They are always smaller than ''P. vittatus'', and beyond locality, this is the best way to differentiate between the two in the field or in the hobby.


Source of toxin

The toxic alkaloid batrachotoxin is only present in frogs found in the wild; after extended captivity, they lose their toxin, indicating that they acquire it (or metabolize it) from their natural diet; this alkaloid has been found in Papuan beetle species in the family Melyridae, and other related genera can be found in Colombia and other areas where ''Phyllobates'' are found.


See also

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Allopumiliotoxin 267A Allopumiliotoxin 267A is a toxin found in the skin of several poison frogs of the family ''Dendrobates''. It is a member of the class of compounds known as allopumiliotoxins. The frogs produce the toxin by modifying the original version, pumilio ...
*
Pumiliotoxin 251D Pumiliotoxin 251D is a toxic organic compound. It is found in the skin of poison frogs from the genera ''Dendrobates'', ''Epipedobates'', '' Minyobates'', and ''Phyllobates'' and toads from the genus '' Melanophryniscus''. Its name comes from the ...


References

* * * {{Taxonbar, from=Q882284 Amphibian genera Taxa named by André Marie Constant Duméril Taxa named by Gabriel Bibron Amphibians of South America Amphibians of Central America