Scientific Research

Phylogenetic systematics of dart-poison frogs and their relatives (Amphibia, Athesphatanura, Dendrobatidae). Bulletin of the AMNH ; no. 299. Authors: Grant, Taran.; Frost, Darrel R.; Caldwell, Janalee P.; Gagliardo, Ron; Haddad, Celio F.B.; Kok, Philippe J.R.; Means, D. Bruce; Noonan, Brice P.; Schargel, Walter E.; Wheeler, Ward.

Written by on April 5, 2015 in Research Papers with 0 Comments

Abstract The known diversity of dart-poison frog species has grown from 70 in the 1960s to 247 at present, with no sign that the discovery of new species will wane in the foreseeable future. Although this growth in knowledge of the diversity of this group has been accompanied by detailed investigations of many aspects of […]

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Preliminary evaluation of skin toxins and vocalizations in taxonomic and evolutionary studies of poison-dart frogs (Dendrobatidae). Bulletin of the AMNH ; V. 157, Article 3. Authors: Myers, Charles W.; Daly, John W.

Written by on April 4, 2015 in Research Papers with 0 Comments

Abstract Studies in progress reveal at least three novel classes of toxic alkaloids in skin secretions of Neotropical dendrobatid frogs. Batrachotoxins are characterized by a steroidal ring structure; those batrachotoxins having a pyrrole carboxylate substituent are among the most toxic of nonprotein poisons. Pumiliotoxins are less toxic and poorly known, but pumiliotoxins A and B […]

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Discovery of the Costa Rican poison frog Dendrobates granuliferus in sympatry with Dendrobates pumilio, and comments on taxonomic use of skin alkaloids. American Museum Novitates; no. 3144. Authors: Myers, Charles W.; Daly, John W.; Garraffo, H. Martin.; Wisnieski, Anthony.; Cover, John F.

Written by on April 3, 2015 in Research Papers with 0 Comments

Abstract Dendrobates granuliferus, previously thought to be a characteristic endemic of Pacific-side rain forest in the Golfo Dulce region, was found in sympatry with Dendrobates pumilio on the Caribbean coast of southeastern Costa Rica, near the Panamanian border. The sympatric frogs were easily separated by features of coloration and skin texture. Relative abundance in microsympatry […]

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A dangerously toxic new frog (Phyllobates) used by Emberá Indians of western Colombia, with discussion of blowgun fabrication and dart poisoning. Bulletin of the AMNH ; v. 161, article 2. Authors: Myers, Charles W.; Daly, John W.; Malkin, Borys.

Written by on April 2, 2015 in Research Papers with 0 Comments

Abstract Phyllobates terribilis, a remarkably toxic new species of frog, is described from the vicinity of an Emberá Chocó settlement in lowland rain forest of Pacific coastal Colombia. It is the third frog definitely known to be used for poisoning darts; the other species are P. aurotaenia and P. bicolor. Toxicity of the skin secretions […]

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