| concentrations of 17 elements, including mercury, in the tissues, food and abiotic environment of arctic shorebirds. | exposure to contaminants is one hypothesis proposed to explain the global decline in shorebirds, and is also an increasing concern in the arctic. we assessed potential contaminants (as, be, cd, co, cr, cu, fe, hg, mn, mo, ni, pb, sb, se, tl, v, and zn) at a shorebird breeding site in nunavut, canada. we compared element levels in soil, invertebrates and shorebird blood to assess evidence for bioconcentration and biomagnification within the arctic-based food chain. we tested whether elements in b ... | 2011 | 21762958 |