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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A NEW AND THREATENED INSULAR SPECIES OF LANCEHEAD FROM SOUTHEASTERN BRAZIL

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Author(s):
Barbo, Fausto E. [1, 2] ; Grazziotin, Felipe G. [2, 3] ; Sazima, Ivan [4] ; Martins, Marcio [5] ; Sawaya, Ricardo J. [6]
Total Authors: 5
Affiliation:
[1] Univ Estadual Paulista Julio de Mesquita Filho UN, Programa Posgrad Biol Anim, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
[2] Univ Sao Paulo MZUSP, Museu Zool, BR-04218970 Sao Paulo - Brazil
[3] Univ Estadual Paulista Julio de Mesquita Filho UN, Programa Posgrad Zool, BR-13506970 Rio Claro, SP - Brazil
[4] Univ Estadual Campinas, Musen Zool, BR-13083970 Campinas, SP - Brazil
[5] Univ Sao Paulo, Dept Ecol, Inst Biociencias, BR-05508090 Sao Paulo - Brazil
[6] Univ Fed Sao Paulo UNIFESP, Dept Ciencias Biol, BR-09972270 Diadema, SP - Brazil
Total Affiliations: 6
Document type: Journal article
Source: Herpetologica; v. 68, n. 3, p. 418-429, SEP 2012.
Web of Science Citations: 6
Abstract

We describe a new species of Bothrops from Vitoria Island, off the coast of Sao Paulo, southeastern Brazil. The new species differs from the mainland coastal populations of B. jararaca mostly in its smaller and stouter body, number and form of scales, and hemipenial morphology. From B. insularis and B. alcatraz, both related species endemic to islands in southeastern Brazil, B. otavioi sp. nov. differs mainly in its body form and number of scales. The new species has the twist common mitochondrial haplotype for mainland populations of B. jararaca, which is also found in B. alcatraz. A mitochondrial genealogy (gene tree) shows the new species nested within the northern clade of B. jararaca. This genealogical pattern can be explained by a recent speciation event for B. otavioi sp. nov. The isolation of insular species of Bothrops from continental ancestor populations are probably related to the same vicariant process, the oscillations of sea level during the Pleistocene. The new species feeds on small hylid frogs, and attains sexual maturity at 388 mm snout-vent length (SVL; males) and 692 mm SVL (females). Bothrops facial sp. nov. is endemic to Vitoria Island, and should be listed as critically endangered because it is known from only a single area (an island), its geographic range covers less than 100 km(2), and there is a projected continuing decline in the quality of its habitat because of increasing human settlement. (AU)

FAPESP's process: 11/50206-9 - Origin and evolution of snakes and their diversification in the Neotropics: a multidisciplinary approach
Grantee:Hussam El Dine Zaher
Support type: BIOTA-FAPESP Program - Thematic Grants