The Puerto Rican crested toad (''Peltophryne lemur''), or simply Puerto Rican toad, is a species of

toad Toad is a common name for certain frogs, especially of the family Bufonidae, that are characterized by dry, leathery skin, short legs, and large bumps covering the parotoid glands. A distinction between frogs and toads is not made in scient ...

found only in

Puerto Rico Puerto Rico (; abbreviated PR; tnq, Boriken, ''Borinquen''), officially the Commonwealth of Puerto Rico ( es, link=yes, Estado Libre Asociado de Puerto Rico, lit=Free Associated State of Puerto Rico), is a Caribbean island and Unincorporated ...

and the

Virgin Islands The Virgin Islands ( es, Islas Vírgenes) are an archipelago in the Caribbean Sea. They are geology, geologically and biogeography, biogeographically the easternmost part of the Greater Antilles, the northern islands belonging to the Puerto Ric ...

. It is the only species of toad native to Puerto Rico and the Virgin Islands. The species formerly occurred in

Virgin Gorda Virgin Gorda () is the third-largest island (after Tortola and Anegada) and second-most populous of the British Virgin Islands (BVI). Geography Located at about 18 degrees, 48 minutes North, and 64 degrees, 30 minutes West, it covers an area ...

and along the southern and northern karst in Puerto Rico. It is listed as a threatened by the

US Fish and Wildlife Service The United States Fish and Wildlife Service (USFWS or FWS) is an agency within the United States Department of the Interior dedicated to the management of fish, wildlife, and natural habitats. The mission of the agency is "working with o ...

due to

habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

and

introduced species An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived the ...

. At one period of time it was believed to be extinct until it was rediscovered in 1966. The IUCN has the species listed as

endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...

Conservation

The U.S. Fish and Wildlife Service, the Department of Natural and Environmental Resources, and the American

Association of Zoos and Aquariums The Association of Zoos and Aquariums (AZA), originally the American Association of Zoological Parks and Aquariums, is an American 501(c)(3) nonprofit organization founded in 1924 and dedicated to the advancement of zoos and public aquariums ...

have worked together to create a captive breeding program run by the American Association of Zoos and Aquariums. In 2013, the group released 71,000 tadpoles and 520 toadlets across three locations. The group has released 260,000 tadpoles over the last twenty years. In 2019, another 8,000 tadpoles were sent to Puerto Rico from the Detroit Zoological Society. In November 2019 the first Puerto Rican crested toad was born as a result of

in vitro ''In vitro'' (meaning in glass, or ''in the glass'') studies are performed with microorganisms, cells, or biological molecules outside their normal biological context. Colloquially called "test-tube experiments", these studies in biology and ...

References

Peltophryne Amphibians of Puerto Rico Fauna of the British Virgin Islands Amphibians of the United States Virgin Islands Amphibians described in 1869 Taxa named by Edward Drinker Cope {{Bufonidae-stub

Conservation

See also

References