Elevated mercury levels in a declining population of ivory gulls in the Canadian Arctic.

@article{Braune2006ElevatedML,
  title={Elevated mercury levels in a declining population of ivory gulls in the Canadian Arctic.},
  author={Birgit M. Braune and Mark L. Mallory and H. Grant Gilchrist},
  journal={Marine pollution bulletin},
  year={2006},
  volume={52 8},
  pages={
          978-82
        }
}

Rapidly increasing methyl mercury in endangered ivory gull (Pagophila eburnea) feathers over a 130 year record

Mercury (Hg) is increasing in marine food webs, especially at high latitudes. The bioaccumulation and biomagnification of methyl mercury (MeHg) has serious effects on wildlife, and is most evident in

High levels of contaminants in ivory gull Pagophila eburnea eggs from the Russian and Norwegian Arctic.

TLDR
High levels of contaminants, in particular organochlorines, are found in eggs of the ivory gull Pagophila eburnea, a high Arctic seabird species threatened by climate change and contaminants, are identified as an important stressor in a species already at risk due to environmental change.

Circumpolar contamination in eggs of the high‐Arctic ivory gull Pagophila eburnea

TLDR
Overall, the levels of OCs, BFRs, and PFASs did not suggest direct lethal exposure to these compounds, but their potential synergetic/additive sublethal effects warrant monitoring.

Trace Element Concentrations in Relation to the Trophic Behaviour of Endangered Ivory Gulls (Pagophila eburnea) During Their Stay at a Breeding Site in Svalbard

TLDR
This study demonstrated individual differences in trophic behaviour that triggered discrepancies in Hg concentrations, highlighting the potential biomagnifying ability of this metal in the ivory gull’s food web.

Spatial ecotoxicology: migratory Arctic seabirds are exposed to mercury contamination while overwintering in the northwest Atlantic.

TLDR
It is shown that little auks were ∼ 3.5 times more contaminated when outside the breeding season, and that Hg that accumulated during this nonbreeding non-Arctic period was related to egg size the following season, with females having more Hg laying smaller eggs.

Mercury bioaccumulation and biomagnification in a small Arctic polynya ecosystem.

Key winter habitat of the ivory gull Pagophila eburnea in the Canadian Arctic

The ivory gull Pagophila eburnea is a rare Arctic seabird that breeds in remote loca- tions; little is known of its winter distribution and behaviour. It is listed under Canadian legislation as

Marine Foraging Birds As Bioindicators of Mercury in the Gulf of Maine

TLDR
E eggs are the preferred tissue for long-term Hg monitoring because the relative ease in collecting eggs ensures consistent and robust datasets, and common eider, Leach’s storm-petrel, double-crested cormorant, and black guillemot are the most effective bioindicators of Hg of the Gulf of Maine.

Inter- and intraclutch variation in egg mercury levels in marine bird species from the Canadian Arctic.

Distribution and Diet of Ivory Gulls ( Pagophila eburnea ) in the North Water

TLDR
It is concluded that differences among individuals in their winter diets or foraging locations are possible, and stable isotope results indicated that ivory gull trophic levels were high but varied over the season.
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