Historical Amphibian Declines And Extinctions In Brazil Linked To Chytridiomycosis

dc.creatorCarvalho
dc.creatorTamilie; Guilherme Becker
dc.creatorC.; Toledo
dc.creatorLuis Felipe
dc.date2017
dc.datefev
dc.date2017-11-13T13:12:51Z
dc.date2017-11-13T13:12:51Z
dc.date.accessioned2018-03-29T05:50:57Z
dc.date.available2018-03-29T05:50:57Z
dc.identifierProceedings Of The Royal Society B-biological Sciences. Royal Soc, v. 284, p. , 2017.
dc.identifier0962-8452
dc.identifier1471-2954
dc.identifierWOS:000393750000011
dc.identifier10.1098/rspb.2016.2254
dc.identifierhttp://rspb.royalsocietypublishing.org/content/284/1848/20162254.e-letters
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/326943
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1363968
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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.
dc.description284
dc.description1848
dc.descriptionFundo de Apoio ao Ensino, a Pesquisa e Extensao (FAEPEX) [1105/13]
dc.descriptionSao Paulo Research Foundation (FAPESP) [2014/23388-7]
dc.descriptionCoordination for the Improvement of Higher Education Personnel (PROEX-CAPES)
dc.descriptionNational Council for Scientific and Technological Development (CNPq) [302589/2013-9, 405285/2013-2, 312895/2014-3]
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageEnglish
dc.publisherRoyal SOC
dc.publisherLondon
dc.relationProceedings of The Royal Society B-Biological Sciences
dc.rightsfechado
dc.sourceWOS
dc.subjectBatrachochytrium Dendrobatidis
dc.subjectSpatial Epidemiology
dc.subjectHost-pathogen Dynamics
dc.subjectDisease Distribution
dc.subjectSpatio-temporal Analysis
dc.titleHistorical Amphibian Declines And Extinctions In Brazil Linked To Chytridiomycosis
dc.typeArtículos de revistas


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