Trace Element Concentrations in Relation to the Trophic Behaviour of Endangered Ivory Gulls ( Pagophila eburnea) During Their Stay at a Breeding Site in Svalbard. - Lucia, Magali; Strøm, Hallvard; Bustamante, Paco; Gabrielsen, Geir (Archives of Environmental Contamination & Toxicology, 2016)