Historical amphibian declines and extinctions in Brazil linked to chytridiomycosis

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorCarvalho, Tamilie-
Autor(es): dc.creatorGuilherme Becker, C. [UNESP]-
Autor(es): dc.creatorToledo, Luís Felipe-
Data de aceite: dc.date.accessioned2022-08-04T22:06:13Z-
Data de disponibilização: dc.date.available2022-08-04T22:06:13Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2017-02-08-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1098/rspb.2016.2254-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/220791-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/220791-
Descrição: dc.descriptionThe recent increase in emerging fungal diseases is causing unprecedented threats to biodiversity. The origin of spread of the frog-killing fungus Batrachochytrium dendrobatidis (Bd) is a matter of continued debate. To date, the historical amphibian declines in Brazil could not be attributed to chytridiomycosis; the high diversity of hosts coupled with the presence of several Bd lineages predating the reported declines raised the hypothesis that a hypervirulent Bd genotype spread from Brazil to other continents causing the recent global amphibian crisis. We tested for a spatio-temporal overlap between Bd and areas of historical amphibian population declines and extinctions in Brazil. A spatio-temporal convergence between Bd and declines would support the hypothesis that Brazilian amphibians were not adapted to Bd prior to the reported declines, thus weakening the hypothesis that Brazil was the global origin of Bd emergence. Alternatively, a lack of spatio-temporal association between Bd and frog declines would indicate an evolution of host resistance in Brazilian frogs predating Bd’s global emergence, further supporting Brazil as the potential origin of the Bd panzootic. Here, we Bd-screened over 30 000 museum-preserved tadpoles collected in Brazil between 1930 and 2015 and overlaid spatio-temporal Bd data with areas of historical amphibian declines. We detected an increase in the proportion of Bd-infected tadpoles during the peak of amphibian declines (1979–1987). We also found that clusters of Bd-positive samples spatiotemporally overlapped with most records of amphibian declines in Brazil’s Atlantic Forest. Our findings indicate that Brazil is post epizootic for chytridiomycosis and provide another piece to the puzzle to explain the origin of Bd globally.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionLaboratório de História Natural de Anfíbios Brasileiros (LaHNAB) Departamento de Biologia Animal Instituto de Biologia Universidade Estadual de Campinas-
Descrição: dc.descriptionDepartamento de Zoologia Universidade Estadual Paulista-
Descrição: dc.descriptionDepartamento de Zoologia Universidade Estadual Paulista-
Descrição: dc.descriptionCNPq: 302589/2013-9-
Descrição: dc.descriptionCNPq: 312895/2014-3-
Descrição: dc.descriptionCNPq: 405285/2013-2-
Idioma: dc.languageen-
Relação: dc.relationProceedings of the Royal Society B: Biological Sciences-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBatrachochytrium dendrobatidis-
Palavras-chave: dc.subjectDisease distribution-
Palavras-chave: dc.subjectHost–pathogen dynamics-
Palavras-chave: dc.subjectSpatial epidemiology-
Palavras-chave: dc.subjectSpatio-temporal analysis-
Título: dc.titleHistorical amphibian declines and extinctions in Brazil linked to chytridiomycosis-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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