Mandibular shape in farmed Arctic foxes (Vulpes lagopus) exposed to persistent organic pollutants
| Autor: | Megan Perra, Eva Fuglei, Madison M. Bradley, Derek C. G. Muir, Christian Sonne, Øystein Ahlstrøm, Even H. Jørgensen, Bjørn Munro Jenssen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Male
Balaenoptera acutorostrata Environmental Engineering 010504 meteorology & atmospheric sciences Vulpes Swine Ontogeny Zoology Foxes Mandible 010501 environmental sciences 01 natural sciences Fluctuating asymmetry Dogs OCs Polychlorinated biphenyls biology.animal Blubber VDP::Mathematics and natural science: 400::Zoology and botany: 480 Organochlorines Environmental Chemistry Animals Arctic fox Minke whale POPs geometric morphometrics Waste Management and Disposal 0105 earth and related environmental sciences PCB biology Arctic Regions GM biology.organism_classification Pollution Diet Arctic Adipose Tissue GMPeriodontal disease Minke whale Lagopus Environmental Pollutants Periodontal disease Minke whale Fluctuating asymmetry geometric morphometric VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
| Zdroj: | Science of the Total Environment Bradley, M M, Perra, M, Ahlstrøm, Ø, Jenssen, B M, Jørgensen, E H, Fuglei, E, Muir, D C G & Sonne, C 2019, ' Mandibular shape in farmed Arctic foxes (Vulpes lagopus) exposed to persistent organic pollutants ', Science of the Total Environment, vol. 646, pp. 1063-1068 . https://doi.org/10.1016/j.scitotenv.2018.07.367 |
| DOI: | 10.1016/j.scitotenv.2018.07.367 |
| Popis: | Accepted manuscript version. Published version available at https://doi.org/10.1016/j.scitotenv.2018.07.367. Accepted manuscript version, licensed CC BY-NC-ND 4.0. We investigated if dietary exposure to persistent organic pollutants (POPs) affect mandibular asymmetry and periodontal disease in paired male-siblings of Arctic foxes (Vulpes lagopus). During ontogeny, one group of siblings was exposed to the complexed POP mixture in naturally contaminated minke whale (Balaenoptere acutorostarta) blubber (n = 10), while another group was given wet feed based on pig (Sus scrofa) 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 (T2 = 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. |
| Databáze: | OpenAIRE |
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