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Title |
DNA damage in Arctic seabirds: Baseline, sensitivity to a genotoxic stressor, and association with organohalogen contaminants |
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2018 |
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Environmental Toxicology and Chemistry |
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37 |
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4 |
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1084-1091 |
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Arctic Comet Assay Genotoxicity Perfluoroalkyl substances Persistent organic pollutants Seabirds |
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Abstract |
Environmental contaminants are found throughout Arctic marine ecosystems, and their presence in seabirds has been associated with toxicological responses. However, there are few studies of genotoxicity in Arctic avian wildlife. The purpose of the present study was to quantify deoxyribonucleic acid (DNA) damage in lymphocytes of selected seabird species and to examine whether accumulation of organohalogen contaminants (?OHCs) affects DNA damage. Blood was sampled from common eider (Somateria mollissima), black guillemot (Cepphus grylle), black?legged kittiwake (Rissa tridactyla), glaucous gull (Larus hyperboreus), arctic skua (Stercorarius parasiticus), and great skua (Stercorarius skua) in Kongsfjorden, Svalbard (Norway). Contaminant concentrations found in the 6 species differed, presumably because of foraging ecology and biomagnification. Despite large differences in contaminant concentrations, ranging from ?OHCs 3.3?ng/g wet weight in the common eider to ?OHCs 895?ng/g wet weight in the great skua, there was no strong difference among the species in baseline DNA damage or sensitivity to a genotoxic stressor (hydrogen peroxide). Baseline levels of DNA damage were low, with median values ranging from 1.7% in the common eider to 8.6% in the great skua. There were no associations between DNA damage and contaminants in the investigated species, suggesting that contaminant concentrations in Kongsfjorden are too low to evoke genotoxic effects, or possibly that lymphocytes are resistant to strand breakage. Clearly, genotoxicity is a topic for future studies of Arctic seabirds. Environ Toxicol Chem 2018;37:1084?1091. ? 2017 SETAC |
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0730-7268 |
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0730-7268 |
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6982 |
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Schmidt, N. M., O. Gilg, J. Aars, and R. A. Ims |
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Title |
Fat, furry and flexible – characteristics of mammals living in the Arctic |
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2018 |
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1036 |
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6983 |
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Gauthier, G., F. I. Doyle, O. Gilg, I. E. Menyushina, R. I. G. Morrison, N. Ovsyanikov, I. Pokrovsky, D. G. Reid, A. Sokolov, and J.-F. Therrien |
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Birds of prey. Pages 62-75 in G. Gauthier and D. Berteaux, editors. ArcticWOLVES: Arctic Wildlife Observatories Linking Vulnerable EcoSystems. Final synthesis report. Centre d’études nordiques, Université Laval, Quebec City. |
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2011 |
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1036 |
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6984 |
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Gilg, O., J. Moreau, and L. Bollache |
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Changements climatiques et interactions interspécifiques au sein d’une communauté de vertébrés terrestres arctiques. Arctique : les grands enjeux scientifiques, Collège de France (June, 4, 2013), Paris, France. |
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2013 |
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1036 |
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6985 |
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Aebischer, A., J. Lang, B. Sittler, and O. Gilg |
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Post-breeding movements as assessed via satellite telemetry of Greenlandic owls (2-6 March 2014). 3rd International Snowy Owl Working Group. Russian Academy of Science, Oural Branch, Salekhard-Yamal, Russia. |
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2014 |
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1036 |
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yes |
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6988 |
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Gilg, O. |
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Greenland. Tundra Conservation Network (10-12 February 2014). The Peregrine Fund, World Center for Birds of Prey, Boise, USA. |
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2014 |
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1036 |
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6989 |
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Gilg, O. and B. Sittler |
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Lemmings in NE Greenland: range limits, latitudinal gradient, old data and future thoughts. Lemming snow workshop (December 4-5, 2013), Tromso, Norway. |
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2013 |
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1036 |
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6990 |
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Gilg, O., B. Sittler, J. Lang, and A. Aebischer |
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Lemming-Owl interactions as assessed in the long term studies on Traill and Hochstetter, Greenland (2-6 March 2014). 3rd International Snowy Owl Working Group. Russian Academy of Science, Oural Branch, Salekhard-Yamal, Russia. |
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2014 |
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6991 |
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Lang, J., B. Sittler, A. Aebischer, and O. Gilg |
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Capturing adult Snowy Owls: A review of published methods and some experiences from Greenland (2-6 March 2014). 3rd International Snowy Owl Working Group. Russian Academy of Science, Oural Branch, Salekhard-Yamal, Russia. |
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2014 |
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6992 |
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Schmidt, N. M., J. Humaidan, S. H. Pedersen, O. Gilg, and B. Sittler |
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Collapsing lemming cycles in Greenland – demographic consequences for lemming predators and its linkages to snow. Arctic Biodiversity Congress, Trondheim, Norway, 2-4 December 2014. CAFF. |
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2014 |
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6993 |
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