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dc.contributor.authorSorensen, Marjorieen
dc.contributor.authorAsghar, Muhammaden
dc.contributor.authorBensch, Staffanen
dc.contributor.authorFairhurst, Graham Den
dc.contributor.authorJenni-Eiermann, Susanneen
dc.contributor.authorSpottiswoode, Claireen
dc.date.accessioned2016-01-18T16:09:33Z
dc.date.available2016-01-18T16:09:33Z
dc.date.issued2016-01-14en
dc.identifier.issn0908-8857
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/253327
dc.description.abstractMalaria parasites can have strong effects on the population dynamics and evolution of migratory bird species. In many species, parasite transmission occurs on the wintering grounds, but studies to determine the consequences of infection have taken place during the breeding season, when malaria parasites circulate at chronic levels. We examined the predictors of malarial infections for great reed warblers during the northern winter in Africa, where active parasite transmission is thought to occur and naïve individuals experience acute infections. Counter to expectations, we found that winter infection intensities were lower than those encountered on the breeding grounds. One potential explanation is that reduced immune function during breeding allows parasites to persist at higher chronic intensities. We found no relationships between the incidence or intensity of infection on condition (as measured by scaled mass index, plasma metabolites, and feather corticosterone), spring migration departure dates, or home range sizes. We also tested a prediction of the Hamilton–Zuk hypothesis and found that male ornament (song) quality was unrelated to parasitic infection status. Overall, our results provide the first evidence that long-distance migrants captured on their wintering grounds are in the chronic stage of infection, and suggest that winter studies may fare no better than breeding studies at determining the costs of acute malarial infection for great reed warblers.
dc.languageEnglishen
dc.language.isoenen
dc.publisherWiley
dc.rightsAttribution 4.0 International
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectavian malariaen
dc.subjectbiomarkersen
dc.subjectinfection costsen
dc.subjectmigrationen
dc.subjectphysiologyen
dc.titleA rare study from the wintering grounds provides insight into the costs of malaria infection for migratory birdsen
dc.typeArticle
dc.description.versionThis is the final version of the article. It first appeared from Wiley via http://dx.doi.org/10.1111/jav.00870en
prism.endingPage582
prism.publicationDate2016en
prism.publicationNameJournal of Avian Biologyen
prism.startingPage575
prism.volume47en
rioxxterms.versionofrecord10.1111/jav.00870en
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2016-01-14en
dc.contributor.orcidSpottiswoode, Claire [0000-0003-3232-9559]
dc.identifier.eissn1600-048X
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idBBSRC (BB/J014109/1)
cam.orpheus.successThu Jan 30 12:55:31 GMT 2020 - The item has an open VoR version.*
rioxxterms.freetoread.startdate2100-01-01


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International