Model-based analyses reveal insular population diversification and cryptic frog species in the Ischnocnema parva complex in the Atlantic forest of Brazil

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dc.contributor.authorGehara, Marcelo
dc.contributor.authorBarth, Adriane
dc.contributor.authorOliveira, Eliana Faria de
dc.contributor.authorCosta, Marco Antonio
dc.contributor.authorHaddad, Célio Fernando Baptista [UNESP]
dc.contributor.authorVences, Miguel
dc.contributor.institutionHerpetology
dc.contributor.institutionDivision of Evolutionary Biology University of Technology of Braunschweig
dc.contributor.institutionCiência e Tecnologia de Mato Grosso – IFMT
dc.contributor.institutionUniversidade Estadual de Santa Cruz
dc.contributor.institutionUniversidade Federal de Mato Grosso do Sul (UFMS)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:11:26Z
dc.date.available2018-12-11T17:11:26Z
dc.date.issued2017-07-01
dc.description.abstractThe Atlantic Forest (AF) of Brazil has long been recognized as a biodiversity conservation hotspot. Despite decades of studies the species inventory of this biome continues to increase with the discovery of cryptic diversity and the description of new species. Different diversification mechanisms have been proposed to explain the diversity in the region, including models of forest dynamics, barriers to gene flow and dispersal. Also, sea level change is thought to have influenced coastal diversification and isolated populations on continental islands. However, the timing and mode of diversification of insular populations in the AF region were rarely investigated. Here, we analyze the phylogeography and species diversity of the small-sized direct-developing frog Ischnocnema parva. These frogs are independent from water bodies but dependent on forest cover and high humidity, and provide good models to understand forest dynamics and insular diversification. Our analysis was based on DNA sequences for one mitochondrial and four nuclear genes of 71 samples from 18 localities including two islands, São Sebastião, municipality of Ilhabela, and Mar Virado, municipality of Ubatuba, both in the state of São Paulo. We use molecular taxonomic methods to show that I. parva is composed of six independently evolving lineages, with the nominal I. parva likely endemic to the type locality. The time-calibrated species tree shows that these lineages have diverged in the Pliocene and Pleistocene, suggesting the persistence of micro-refuges of forest in the AF. For the two insular populations we used approximate Bayesian computation to test different diversification hypotheses. Our findings support isolation with migration for São Sebastião population, with ∼1 Mya divergence time, and isolation without migration for Mar Virado population, with ∼13 Kya divergence time, suggesting a combination of different processes for diversification on AF islands.en
dc.description.affiliationAmerican Museum of Natural History Herpetology, Central Park West at 79th St.
dc.description.affiliationZoological Institute Division of Evolutionary Biology University of Technology of Braunschweig, Mendelssohnstr. 4
dc.description.affiliationDepartamento de Ensino Instituto Federal de Educação Ciência e Tecnologia de Mato Grosso – IFMT
dc.description.affiliationUniversidade Estadual de Santa Cruz Departamento de Ciências Biológicas Ilhéus
dc.description.affiliationUniversidade Federal de Mato Grosso do Sul Centro de Ciências Biológicas e da Saúde Laboratório de Zoologia Cidade Universitária
dc.description.affiliationUniversidade Estadual Paulista (UNESP) Departamento de Zoologia Instituto de Biociências and Centro de Aquicultura (CAUNESP), Campus Rio Claro
dc.description.affiliationUnespUniversidade Estadual Paulista (UNESP) Departamento de Zoologia Instituto de Biociências and Centro de Aquicultura (CAUNESP), Campus Rio Claro
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipDeutscher Akademischer Austauschdienst
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado da Bahia
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipKatholischer Akademischer Ausländer-Dienst
dc.description.sponsorshipIdFAPESP: #2013/50741-7
dc.format.extent68-78
dc.identifierhttp://dx.doi.org/10.1016/j.ympev.2017.04.007
dc.identifier.citationMolecular Phylogenetics and Evolution, v. 112, p. 68-78.
dc.identifier.doi10.1016/j.ympev.2017.04.007
dc.identifier.file2-s2.0-85018339926.pdf
dc.identifier.issn1095-9513
dc.identifier.issn1055-7903
dc.identifier.scopus2-s2.0-85018339926
dc.identifier.urihttp://hdl.handle.net/11449/174499
dc.language.isoeng
dc.relation.ispartofMolecular Phylogenetics and Evolution
dc.relation.ispartofsjr2,088
dc.relation.ispartofsjr2,088
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectABC
dc.subjectAmphibia
dc.subjectBrachycephalidae
dc.subjectCryptic diversity
dc.subjectInsular diversification
dc.subjectSpecies delimitation
dc.titleModel-based analyses reveal insular population diversification and cryptic frog species in the Ischnocnema parva complex in the Atlantic forest of Brazilen
dc.typeArtigo
unesp.author.lattes0458077399058762[5]
unesp.author.orcid0000-0002-7044-5764[5]

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