Out of Borneo, again and again: Biogeography of the Stream Toad genus Ansonia Stoliczka (Anura: Bufonidae) and the discovery of the first limestone cave-dwelling species

L. Lee Grismer, Perry L. Wood, Anchalee Aowphol, Michael Cota, Marta S. Grismer, Matthew L. Murdoch, Cesar Aguilar, Jesse L. Grismer

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

36 Citas (Scopus)

Resumen

Subsequent to the Miocene (approximately 35 Mya), Borneo has served as an insular refuge and a source of colonization for a broad range of species emigrating to others parts of Sundaland. A phylogeny-based historical biogeographical hypothesis for the Stream Toad genus Ansonia supports multiple instances of an out-of-Borneo scenario. An ancestral range estimation indicates that in situ speciation of Ansonia on the island of Borneo during the Late Miocene and Pliocene (approximately 2-13 Mya) eventually resulted in an invasion of the Philippines, Sumatra, and two independent invasions of the Thai-Malay Peninsula. When collecting material for the biogeographical analysis, a new species of Ansonia, Ansonia khaochangensis sp. nov. was discovered in a limestone cave from the Khao Chang karst tower in Phangnga Province, in southern Thailand. Ansonia khaochangensis sp. nov. can be differentiated from all other species of Ansonia by having a unique combination of morphological and colour pattern characteristics. Phylogenetic evidence based on the mitochondrial genes 12S and 16S indicates that it is nested within a clade of other species distributed north of the Isthmus of Kra. The cave lifestyle of this new species is a unique and a significant departure from lotic environments common to most other species of Ansonia. The reproductive biology of this species is unknown.

Idioma originalInglés
Páginas (desde-hasta)371-395
Número de páginas25
PublicaciónBiological Journal of the Linnean Society
Volumen120
N.º2
DOI
EstadoPublicada - 2017

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Publisher Copyright:
© 2016 The Linnean Society of London.

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