Bioclimatic and anthropogenic variables shape the occurrence of Batrachochytrium dendrobatidis over a large latitudinal gradient

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dc.contributor.authorAlvarado Rybak, Mario
dc.contributor.authorLepe Lopez, Manuel
dc.contributor.authorPenafiel Ricaurte, Alexandra
dc.contributor.authorValenzuela Sanchez, Andres
dc.contributor.authorValdivia, Catalina
dc.contributor.authorMardones, Fernando O.
dc.contributor.authorBacigalupe, Leonardo D.
dc.contributor.authorPuschendorf, Robert
dc.contributor.authorCunningham, Andrew A.
dc.contributor.authorAzat, Claudio
dc.date.accessioned2024-01-10T13:44:50Z
dc.date.available2024-01-10T13:44:50Z
dc.date.issued2021
dc.description.abstractAmphibian chytridiomycosis, caused by the fungus Batrachochytrium dendrobatidis (Bd), has caused the greatest known loss of biodiversity due to an infectious disease. We used Bd infection data from quantitative real-time PCR (qPCR) assays of amphibian skin swabs collected across Chile during 2008-2018 to model Bd occurrence with the aim to determine bioclimatic and anthropogenic variables associated with Bd infection. Also, we used Bd presence/absence records to identify geographical Bd high-risk areas and compare Bd prevalence and infection loads between amphibian families, ecoregions, and host ecology. Data comprised 4155 Bd-specific qPCR assays from 162 locations across a latitudinal gradient of 3700 km (18 degrees to 51 degrees S). Results showed a significant clustering of Bd associated with urban centres and anthropogenically highly disturbed ecosystems in central-south Chile. Both Bd prevalence and Bd infection loads were higher in aquatic than terrestrial amphibian species. Our model indicated positive associations of Bd prevalence with altitude, temperature, precipitation and human-modified landscapes. Also, we found that macroscale drivers, such as land use change and climate, shape the occurrence of Bd at the landscape level. Our study provides with new evidence that can improve the effectiveness of strategies to mitigate biodiversity loss due to amphibian chytridiomycosis.
dc.description.funderFondecyt
dc.fechaingreso.objetodigital2024-04-25
dc.format.extent12 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1038/s41598-021-96535-w
dc.identifier.issn2045-2322
dc.identifier.pubmedidMEDLINE:34462470
dc.identifier.urihttps://doi.org/10.1038/s41598-021-96535-w
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78944
dc.identifier.wosidWOS:000693354000016
dc.information.autorucInterdisciplinarias; Mardones Loyola, Fernando Otoniel; S/I; 1084534
dc.issue.numero1
dc.language.isoen
dc.nota.accesocontenido completo
dc.publisherNATURE PORTFOLIO
dc.revistaSCIENTIFIC REPORTS
dc.rightsacceso abierto
dc.subjectAMPHIBIAN CHYTRID FUNGUS
dc.subjectPOPULATION DECLINES
dc.subjectECOLOGICAL TRAITS
dc.subjectXENOPUS-LAEVIS
dc.subjectSP-NOV
dc.subjectCHYTRIDIOMYCOSIS
dc.subjectDISEASE
dc.subjectPREVALENCE
dc.subjectPATHOGEN
dc.subjectCLIMATE
dc.subject.ods15 Life on Land
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleBioclimatic and anthropogenic variables shape the occurrence of Batrachochytrium dendrobatidis over a large latitudinal gradient
dc.typeartículo
dc.volumen11
sipa.codpersvinculados1084534
sipa.indexWOS
sipa.trazabilidadCarga SIPA;09-01-2024
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