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dc.contributor.authorBradley, Madison M.
dc.contributor.authorPerra, Megan
dc.contributor.authorAhlstrøm, Øystein
dc.contributor.authorJenssen, Bjørn Munro
dc.contributor.authorJørgensen, Even Hjalmar
dc.contributor.authorFuglei, Eva
dc.contributor.authorMuir, Derek C.G.
dc.contributor.authorSonne, Christian
dc.date.accessioned2018-09-02T10:57:23Z
dc.date.available2018-09-02T10:57:23Z
dc.date.issued2018-07-26
dc.description.abstractWe investigated if dietary exposure to persistent organic pollutants (POPs) affect mandibular asymmetry and periodontal disease in paired male-siblings of Arctic foxes (<i>Vulpes lagopus</i>). During ontogeny, one group of siblings was exposed to the complexed POP mixture in naturally contaminated minke whale (<i>Balaenoptere acutorostarta</i>) blubber (n = 10), while another group was given wet feed based on pig (<i>Sus scrofa</i>) fat as a control (n = 11). The ∑POP concentrations were 802 ng/g ww in the whale-based feed compared to 24 ng/g ww in the control diet. We conducted a two-dimensional geometric morphometric (GM) analysis of mandibular shape and asymmetry in the foxes and compared the two groups. The analyses showed that directional asymmetry was higher than fluctuating asymmetry in both groups and that mandibular shape differed significantly between the exposed and control group based on discriminant function analysis (T<sup>2</sup> = 58.52, p = 0.04, 1000 permutations). We also found a non-significantly higher incidence of periodontal disease (two-way ANOVA: p = 0.43) and greater severity of sub-canine alveolar bone deterioration similar to periodontitis (two-way ANOVA: p = 0.3) in the POP-exposed group. Based on these results, it is possible that dietary exposure to a complexed POP mixture lead to changes in jaw morphology in Arctic foxes. This study suggests that extrinsic factors, such as dietary exposure to POPs, may affect mandibular shape and health in a way that could be harmful to wild Arctic populations. Therefore, further studies using GM analysis as an alternative to traditional morphometric methods should be conducted for wild Arctic fox populations exposed to environmental contaminants.en_US
dc.descriptionAccepted manuscript version. Published version available at <a href=https://doi.org/10.1016/j.scitotenv.2018.07.367> https://doi.org/10.1016/j.scitotenv.2018.07.367</a>. Accepted manuscript version, licensed <a href=http://creativecommons.org/licenses/by-nc-nd/4.0/> CC BY-NC-ND 4.0.</a>en_US
dc.identifier.citationBradley, M.P., Perra, M., Ahlstrøm, Ø., Jenssen, B.M., Jørgensen, E.H., Fuglei, E., ... Sonne, C. (2018). Mandibular shape in farmed Arctic foxes (Vulpes lagopus) exposed to persistent organic pollutants. Science of the Total Environment, 646, 1063-1068. https://doi.org/10.1016/j.scitotenv.2018.07.367en_US
dc.identifier.cristinIDFRIDAID 1605314
dc.identifier.issn0048-9697
dc.identifier.issn1879-1026
dc.identifier.otherj.scitotenv.2018.07.367
dc.identifier.urihttps://hdl.handle.net/10037/13621
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalScience of the Total Environment
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/PROFO/153484/Norway/Bioavailability and effects of organochlorine contaminants in relation to seasonal lipid cycles in arctic fox//en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480en_US
dc.subjectBalaenoptera acutorostrataen_US
dc.subjectFluctuating asymmetry, geometric morphometricen_US
dc.subjectGMPeriodontal disease, Minke whaleen_US
dc.subjectPOPsen_US
dc.subjectOrganochlorinesen_US
dc.subjectOCsen_US
dc.subjectPolychlorinated biphenylsen_US
dc.subjectPCBen_US
dc.titleMandibular shape in farmed Arctic foxes (Vulpes lagopus) exposed to persistent organic pollutantsen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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