Biogeography, vicariance and conservation of snakes of the neglected and endangered Caatinga region, north-eastern Brazil

Show simple item record Guedes, Thais B. [UNIFESP] Sawaya, Ricardo J. [UNIFESP] Nogueira, Cristiano de C. 2016-01-24T14:37:16Z 2016-01-24T14:37:16Z 2014-05-01
dc.identifier.citation Journal of Biogeography. Hoboken: Wiley-Blackwell, v. 41, n. 5, p. 919-931, 2014.
dc.identifier.issn 0305-0270
dc.description.abstract AimOur aims were to test the predictions of the vicariance model, searching for natural, non-random biogeographical units using data on snake distributions, and to assess the conservation of biogeographical patterns and underlying processes in the poorly studied Caatinga region.LocationCaatinga region, north-eastern Brazil.MethodsWe revised and georeferenced 7352 snake occurrence records at point localities, by direct examination of voucher specimens in zoological collections and revision of literature data. We tested two predictions of the vicariance model via biotic element analysis using two datasets (all taxa and endemics) mapped onto a 1 degrees x1 degrees square grid across the Caatinga. Finally, we examined the overlap between recovered biogeographical units and spatial patterns of habitat loss and protected area coverage.ResultsWe recorded 112 snake species from the Caatinga, of which 22 (20%) are endemics. the predictions of the vicariance model were corroborated by the detection of groups of species with significantly clustered ranges (biotic elements). the analysis with the full dataset detected eight biotic elements, and three endemic biotic elements were found when only using endemics. the three endemic biotic elements correspond to core areas of biotic elements detected with the larger dataset. the average habitat loss for species forming biotic elements was 46%, and was similar among biotic elements. Protected area coverage is different for species from different biotic elements, and most species' ranges are very poorly represented in protected areas.Main conclusionsThe Caatinga harbours a peculiar snake fauna with significantly clustered species ranges concordant with the predictions of the vicariance model. Our results, representing the first formal test of vicariance patterns in the Caatinga, detected poor overlap between biotic elements and protected areas, indicating that biogeographical patterns and processes are largely unprotected in this imperilled and neglected Neotropical region. en
dc.description.sponsorship Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorship Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorship FADA-UNIFESP
dc.format.extent 919-931
dc.language.iso eng
dc.publisher Wiley-Blackwell
dc.relation.ispartof Journal of Biogeography
dc.rights Acesso restrito
dc.subject habitat loss en
dc.subject conservation biogeography en
dc.subject Serpentes en
dc.subject protected areas en
dc.subject Neotropical region en
dc.subject distribution patterns en
dc.subject biotic elements en
dc.subject endemism en
dc.subject regionalization en
dc.subject Biodiversity en
dc.title Biogeography, vicariance and conservation of snakes of the neglected and endangered Caatinga region, north-eastern Brazil en
dc.type Artigo
dc.contributor.institution Univ Estadual Paulista UNESP
dc.contributor.institution Universidade Federal de São Paulo (UNIFESP)
dc.contributor.institution Universidade de São Paulo (USP)
dc.description.affiliation Univ Estadual Paulista UNESP, Programa Posgrad Biol Anim, Inst Biociencias Letras & Ciencias Exatas, BR-15054000 Sao Jose Do Rio Preto, SP, Brazil
dc.description.affiliation Universidade Federal de São Paulo UNIFESP, Dept Ciencias Biol, BR-09972270 Diadema, SP, Brazil
dc.description.affiliation Univ São Paulo MZUSP, Museu Zool, Lab Herpetol, BR-04203000 São Paulo, Brazil
dc.description.affiliationUnifesp Universidade Federal de São Paulo UNIFESP, Dept Ciencias Biol, BR-09972270 Diadema, SP, Brazil
dc.description.sponsorshipID FAPESP: 2009/50627-4
dc.description.sponsorshipID FAPESP: 2013/04170-8
dc.description.sponsorshipID FAPESP: 2008/54472-2
dc.description.sponsorshipID FAPESP: 2012/19858-2
dc.description.sponsorshipID FAPESP: 2011/50206-9
dc.identifier.doi 10.1111/jbi.12272
dc.description.source Web of Science
dc.identifier.wos WOS:000334026700008


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