Publications

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environmental contaminants in four eider species from alaska and arctic russia.population declines in four species of eider; common (somateria mollissima), king (somateria spectabilis), spectacled (somateria fischeri) and steller's (polysticta stelleri), have raised concerns about exposure to contaminants. livers and kidney tissues were collected from eiders in alaska and russia for organic and elemental analyses. results showed that organochlorine and many elemental levels were below toxic thresholds; however, in many cases, cadmium, copper, lead and serenium appeared hig ...200212152828
contaminants in molting long-tailed ducks and nesting common eiders in the beaufort sea.in 2000, we collected blood from long-tailed ducks (clangula hyemalis) and blood and eggs from common eiders (somateria mollissima) at near-shore islands in the vicinity of prudhoe bay, alaska, and at a reference area east of prudhoe bay. blood was analyzed for trace elements and egg contents were analyzed for trace elements, organochlorine pesticides, polychlorinated biphenyls, and polycyclic aromatic hydrocarbons. except for se (mean=36.1 microg/g dry weight (dw) in common eiders and 48.8 micr ...200414980466
selenium concentrations and enzyme activities of glutathione metabolism in wild long-tailed ducks and common eiders.the relationships of selenium (se) concentrations in whole blood with plasma activities of total glutathione peroxidase, se-dependent glutathione peroxidase, and glutathione reductase were studied in long-tailed ducks (clangula hyemalis) and common eiders (somateria mollissima) sampled along the beaufort sea coast of alaska, usa. blood se concentrations were >8?µg/g wet weight in both species. linear regression revealed that the activities of total and se-dependent glutathione peroxidase were si ...201121462234
assessment of metals in down feathers of female common eiders and their eggs from the aleutians: arsenic, cadmium, chromium, lead, manganese, mercury, and selenium.concentrations of arsenic, cadmium, chromium, lead, manganese, mercury and selenium were examined in the down feathers and eggs of female common eiders (somateria mollissima) from amchitka and kiska islands in the aleutian chain of alaska to determine whether there were (1) differences between levels in feathers and eggs, (2) differences between the two islands, (3) positive correlations between metal levels in females and their eggs, and (4) whether there was more variation within or among clut ...200817934788
comparison of arsenic, cadmium, chromium, lead, manganese, mercury and selenium in feathers in bald eagle (haliaeetus leucocephalus), and comparison with common eider (somateria mollissima), glaucous-winged gull (larus glaucescens), pigeon guillemot (cepphus columba), and tufted puffin (fratercula cirrhata) from the aleutian chain of alaska.there is an abundance of field data for levels of metals from a range of places, but relatively few from the north pacific ocean and bering sea. in this paper we examine the levels of arsenic, cadmium, chromium, lead, manganese, mercury and selenium in feathers from common eiders (somateria mollissima), glaucous-winged gulls (larus glaucescens), pigeon guillemots (cepphus columba), tufted puffins (fratercula cirrhata) and bald eagles (haliaeetus leucocephalus) from the aleutian chain of alaska. ...200918521716
lead poisoning of spectacled eiders (somateria fischeri) and of a common eider (somateria mollissima) in alaska.lead poisoning was diagnosed in four spectacled eiders (somateria fischeri) and one common eider (somateria mollissima) found dead or moribund at the yukon delta national wildlife refuge, alaska (usa) in 1992, 1993, and 1994. ingested lead shot was found in the lower esophagus of one spectacled eider and in the gizzard of the common eider. lead concentrations in the livers of the spectacled eiders were 26 to 38 ppm wet weight, and 52 ppm wet weight in the liver of the common eider. a blood sampl ...19958583651
concentrations of trace elements in eggs and blood of spectacled and common eiders on the yukon-kuskokwim delta, alaska, usa.we examined the relations among nesting success, egg viability, and blood and egg concentrations of as, cd, pb, hg, and se in a threatened population of spectacled eiders (somateria fischeri) and a sympatric population of common eiders (s. mollissima) on the yukon-kuskokwim delta, alaska, usa, during 1995 and 1996. during the early breeding season, males and females had mean se concentrations in their blood of 19.2 microg/g and 12.8 microg/g wet weight, respectively. blood se concentrations of f ...200212152768
avian cholera causes marine bird mortality in the bering sea of alaska.the first known avian cholera outbreak among wild birds in alaska occurred during november 2013. liver, intestinal, and splenic necrosis consistent with avian cholera was noted, and pasteurella multocida serotype 1 was isolated from liver and lung or spleen in crested auklets (aethia cristatella), thick-billed murres (uria lomvia), common eider (somateria mollissima), northern fulmars (fulmarus glacialis), and gulls (larus spp.).201526251989
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