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dc.contributor.authorGrogan, LF
dc.contributor.authorPhillott, AD
dc.contributor.authorScheele, BC
dc.contributor.authorBerger, L
dc.contributor.authorCashins, SD
dc.contributor.authorBell, SC
dc.contributor.authorPuschendorf, Robert
dc.contributor.authorSkerratt, LF
dc.date.accessioned2016-06-10T10:34:07Z
dc.date.available2016-06-10T10:34:07Z
dc.date.issued2016-04-25
dc.identifier.issn0021-8790
dc.identifier.issn1365-2656
dc.identifier.urihttp://hdl.handle.net/10026.1/4876
dc.description.abstract

<jats:title>Summary</jats:title><jats:p> <jats:list> <jats:list-item><jats:p>Pathogens can be critical drivers of the abundance and distribution of wild animal populations. The presence of an overdispersed pathogen load distribution between hosts (where few hosts harbour heavy parasite burdens and light infections are common) can have an important stabilizing effect on host–pathogen dynamics where infection intensity determines pathogenicity. This may potentially lead to endemicity of an introduced pathogen rather than extirpation of the host and/or pathogen.</jats:p></jats:list-item> <jats:list-item><jats:p>Overdispersed pathogen load distributions have rarely been considered in wild animal populations as an important component of the infection dynamics of microparasites such as bacteria, viruses, protozoa and fungi.</jats:p></jats:list-item> <jats:list-item><jats:p>Here we examined the abundance, distribution and transmission of the model fungal pathogen <jats:italic>Batrachochytrium dendrobatidis</jats:italic> (Bd, cause of amphibian chytridiomycosis) between wild‐caught <jats:italic>Litoria rheocola</jats:italic> (common mist frogs) to investigate the effects of an overdispersed pathogen load distribution on the host population in the wild. We quantified host survival, infection incidence and recovery probabilities relative to infectious burden, and compared the results of models where pathogen overdispersion either was or was not considered an important feature of host–pathogen dynamics.</jats:p></jats:list-item> <jats:list-item><jats:p>We found the distribution of Bd load between hosts to be highly overdispersed. We found that host survival was related to infection burden and that accounting for pathogen overdispersion allowed us to better understand infection dynamics and their implications for disease control. In addition, we found that the pattern of host infections and recoveries varied markedly with season whereby (i) infections established more in winter, consistent with temperature‐dependent effects on fungal growth, and (ii) recoveries (loss of infection) occurred frequently in the field throughout the year but were less likely in winter.</jats:p></jats:list-item> <jats:list-item><jats:p>Our results suggest that pathogen overdispersion is an important feature of endemic chytridiomycosis and that intensity of infection determines disease impact. These findings have important implications for our understanding of chytridiomycosis dynamics and the application of management strategies for disease mitigation. We recommend quantifying individual infectious burdens rather than infection state where possible in microparasitic diseases.</jats:p></jats:list-item> </jats:list> </jats:p>

dc.format.extent806-816
dc.format.mediumPrint-Electronic
dc.languageen
dc.language.isoen
dc.publisherWiley
dc.subjectaggregation
dc.subjectamphibian declines
dc.subjectfrog
dc.subjectmacroparasite
dc.subjectmark-recapture
dc.subjectmicroparasite
dc.subjectmultistate
dc.subjectpathogen distribution
dc.subjectrecovery
dc.subjecttransition
dc.titleEndemicity of chytridiomycosis features pathogen overdispersion
dc.typejournal-article
dc.typeJournal Article
dc.typeResearch Support, Non-U.S. Gov't
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000375121400021&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issue3
plymouth.volume85
plymouth.publication-statusPublished
plymouth.journalJournal of Animal Ecology
dc.identifier.doi10.1111/1365-2656.12500
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA06 Agriculture, Veterinary and Food Science
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.publisher.placeEngland
dcterms.dateAccepted2016-02-04
dc.rights.embargodate2017-4-25
dc.identifier.eissn1365-2656
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1111/1365-2656.12500
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2016-04-25
rioxxterms.typeJournal Article/Review


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