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dc.contributor.authorJohansen, Ida Beitnes
dc.contributor.authorHenriksen, Eirik Haugstvedt
dc.contributor.authorShaw, Jenny Carolyn
dc.contributor.authorMayer, Ian
dc.contributor.authorAmundsen, Per-Arne
dc.contributor.authorØverli, Øyvind
dc.date.accessioned2019-08-09T08:51:48Z
dc.date.available2019-08-09T08:51:48Z
dc.date.issued2019-07-23
dc.description.abstractConspicuous carotenoid ornamentation is considered a signal of individual “quality” and one of the most intensely studied traits found to co-vary with parasitism. Since it has been suggested that only “high quality” individuals have enough resources to express excessive sexual ornaments and resist parasites, current theory struggles to explain cases where the brightest individuals carry the most parasites. Surprisingly little emphasis has been put on the contrasting routes to fitness utilized by different parasite species inhabiting the same host. Using Arctic charr (<i>Salvelinus alpinus</i>) as model species, we hypothesized that skin redness and allocation of carotenoids between skin and muscle (redness ratio) will be positively and negatively associated with parasites using the fish as an intermediate and final host, respectively. Both pigment parameters were indeed positively associated with abundances of parasites awaiting trophic transmission (<i>Diplostomum</i> sp. and <i>Diphyllobothrium</i> spp.) and negatively associated with the abundance of adult <i>Eubothrium salvelini</i> tapeworms. These empirical data demonstrate that contrasting associations between carotenoid coloration and parasite intensities relates to the specifc premises of diferent parasite species and life cycle stages.en_US
dc.descriptionSource at <a href=https://doi.org/10.1038/s41598-019-47083-x>https://doi.org/10.1038/s41598-019-47083-x. </a>en_US
dc.identifier.citationJohansen, I.B., Henriksen, E.H., Shaw, J.C., Mayer, I., Amundsen, P-A. & Øverli, Ø. (2019). Contrasting associations between breeding coloration and parasitism of male Arctic charr relate to parasite species and life cycle stage. <i>Scientific Reports, 9</i>:10679. https://doi.org/10.1038/s41598-019-47083-xen_US
dc.identifier.cristinIDFRIDAID 1714187
dc.identifier.doi10.1038/s41598-019-47083-x
dc.identifier.issn2045-2322
dc.identifier.urihttps://hdl.handle.net/10037/15886
dc.language.isoengen_US
dc.publisherNature Researchen_US
dc.relation.journalScientific Reports
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/FRIMEDBIO/250048/Norway/Parasites and host behaviour: Co-evolution from genotype to phenotype//en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920en_US
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920en_US
dc.subjectbehavioural ecologyen_US
dc.subjectfreshwater ecologyen_US
dc.subjectparasitic infectionen_US
dc.subjectreproductive biologyen_US
dc.titleContrasting associations between breeding coloration and parasitism of male Arctic charr relate to parasite species and life cycle stageen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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