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Mercury contamination in Anna’s hummingbirds
Heavy metal contamination (n=17 metals) of feather and tissue samples from live and deceased Anna's hummingbirds (Calypte anna) was evaluated. Feathers taken from live birds are low in sample weight, therefore a novel method was used in feather sample preparation. Feather samples were then analyzed utilizing an inductively coupled plasma mass spectrometry (ICP-MS) assay. In addition, ICP-MS was used to measure heavy metal concentrations in feather and tissue samples from salvaged hummingbird carcasses. Iron, zinc, selenium and mercury concentrations were most commonly elevated in body feathers from live birds with mercury being the metal most likely to be found in elevated concentrations. Because of this, we conducted additional analysis for mercury using atomic absorption spectometry, and this is the mercury data available in this dataset. A strong correlation between total mercury concentrations in feathers and in pectoral muscle was found suggesting that sampling feathers from live hummingbirds may prove a validated, useful, non-lethal sampling method for this species in the wild. These data support the following publication: Nicole A. Mikoni, Robert Poppenga, Joshua T. Ackerman, Janet Foley, Jenny Hazlehurst, Güthrum Purdin, Linda Aston, Sabine Hargrave, Karen Jelks, Lisa A. Tell, Trace element contamination in feather and tissue samples from Anna’s hummingbirds, Ecological Indicators, Volume 80, September 2017, Pages 96-105, https://doi.org/10.1016/j.ecolind.2017.04.053.
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Mercury Concentrations in Songbird Feathers and Tissues
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This dataset includes the bird species, sex, age, and total mercury concentrations in feathers, muscle, liver, and nail tissues.
Variability of mercury concentrations among whole bird feathers, feather homogenates, and feather components quantified in California in 2017-2018
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These data are the raw total mercury (THg) concentrations in whole feathers, feather homogenates, and feather components (i.e., rachis, vane, calamus) that are presented in the Journal Article "Mercury concentrations vary within and among individual bird feathers: A critical evaluation and guidelines for feather use in mercury monitoring programs" in Environmental Toxicology and Chemistry by Peterson et al.
Feather mercury concentrations in North American raptors sampled at migration monitoring stations
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We assessed total mercury concentrations in breast feathers of diurnal North American raptors collected at migration monitoring stations. We sampled raptor feathers from 9 species in the Pacific Flyway and compared species, sex, date, and flyway effects on mercury concentrations. We also explored year effects on 3 species of raptors in the Pacific Flyway during 13-years (2002-2014). Finally, we compared mercury concentrations in merlin among 4 continental flyways.
Mercury exposure in piscivorous birds at the Carson River (NV) superfund site, 1997-2006
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The persistence and degree of mercury contamination of the lower Carson River system (LCRS) have led to placement of a portion of the Carson River Basin (including Lahontan Reservoir) on the US. Environmental Protection Agency (EPA) National Priorities List ("Superfund") for research and cleanup. The potential toxicity of mercury concentrations within the LCRS to piscivorous birds (snowy egrets, black-crowned night-herons, and double-crested cormorants) was examined from 1997-2006. This data set supports the following publications: Henny, C.J., Hill, E.F., Grove, R.A., Kaiser, J.L., 2007, Mercury and drought along the lower Carson River, Nevada- I. Snowy egret and black-crowned night-heron annual exposure to mercury, 1997-2006: Archives of Environmental Contamination and Toxicology, v. 53, p. 269-280. Hill, E.F., Henny, C.J., Grove, R.A., 2008, Mercury and drought along the lower Carson River, Nevada- II. Snowy egret and black-crowned night-heron reproduction on Lahontan Reservoir, 1997-2006: Ecotoxicology, v. 17, p. 117-131. Hoffman, D.J., Henny, C.J., Hill, E.F., Grove, R.A., Kaiser, J.L., Stebbins, K.R., 2009, Mercury and drought along the lower Carson River, Nevada- III. Effects on blood and organ biochemistry and histopathology of snowy egrets and black-crowned night-herons on Lahontan Reservoir, 2002-2006: Journal of Toxicology and Environmental Health, Part A, v. 72, p. 1223-1241.
Mercury exposure in piscivorous birds at the Carson River (NV) superfund site, 1997-2006: egg data
공공데이터포털
The persistence and degree of mercury contamination of the lower Carson River system (LCRS) have led to placement of a portion of the Carson River Basin (including Lahontan Reservoir) on the US. Environmental Protection Agency (EPA) National Priorities List ("Superfund") for research and cleanup. The potential toxicity of mercury concentrations within the LCRS to piscivorous birds (snowy egrets, black-crowned night-herons, and double-crested cormorants) was examined from 1997-2006. This data set supports the following publications: Henny, C.J., Hill, E.F., Grove, R.A., Kaiser, J.L., 2007, Mercury and drought along the lower Carson River, Nevada- I. Snowy egret and black-crowned night-heron annual exposure to mercury, 1997-2006: Archives of Environmental Contamination and Toxicology, v. 53, p. 269-280. Hill, E.F., Henny, C.J., Grove, R.A., 2008, Mercury and drought along the lower Carson River, Nevada- II. Snowy egret and black-crowned night-heron reproduction on Lahontan Reservoir, 1997-2006: Ecotoxicology, v. 17, p. 117-131. Hoffman, D.J., Henny, C.J., Hill, E.F., Grove, R.A., Kaiser, J.L., Stebbins, K.R., 2009, Mercury and drought along the lower Carson River, Nevada- III. Effects on blood and organ biochemistry and histopathology of snowy egrets and black-crowned night-herons on Lahontan Reservoir, 2002-2006: Journal of Toxicology and Environmental Health, Part A, v. 72, p. 1223-1241.
Total Mercury and Methylmercury in Riparian Songbirds and Aquatic Invertebrates from the Willamette Valley, Oregon, 2013-2014
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This dataset includes bird species, invertebrate order and family, sample identification codes, capture date, latitude, longitude, habitat, site name, bird age, total mercury concentrations in bird blood, and methylmercury concentrations in whole body aquatic invertebrates.
Pacific Northwest Avian Scavenger Lead and Mercury Dataset, 2012-2016
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The dataset includes the bird species, region where sampled, sampling site, capture location, mercury concentration in whole blood, lead concentration in whole blood, sulfur stable isotope concentration in blood plasma, carbon isotope concentration in blood plasma, whole blood ALAD activity, and fecal corticosterone concentrations.
Mercury Contamination of Red-legged Kittiwakes in the Western Subarctic Pacific Ocean
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This dataset contains mercury concentrations and locations of wintering red-legged kittiwakes in the western subartic Pacific Ocean.
Assessment of Mercury, Mercury Stable Isotopes, and Trace Metals in Waters, Sediments, and Biota from Great Salt Lake, Utah
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Great Salt Lake (GSL) is a designated Site of Hemispheric Importance for migratory birds by the Western Hemisphere Shorebird Reserve Network. Elevated mercury (Hg) and methylmercury (MeHg) levels related to current inputs and past industrial contamination pose a potential threat to GSL biota, in addition to waterfowl hunters that utilize GSL and surrounding wetland areas. Sediments, invertebrates (brine shrimp, brine flies, and spiders), and waterfowl (northern shoveler and cinnamon teal) were targeted within these studies to determine relative source contributions of Hg and trace elements to the GSL system, determine which sources of mercury are actively bioaccumulating in GSL food webs, assess controls on mercury cycling within the GSL system, and assess MeHg toxicity risk to waterfowl. Hg stable isotopes were heavily employed as tracers of Hg sources and processing. These data are a part of larger studies and associated with upcoming journal articles.
Mercury concentrations in western gulls along the west coast, USA, 2015-2017
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We investigated whether foraging habitat, sex, or fidelity to a foraging area effected blood mercury concentrations in western gulls (Larus occidentalis) from three colonies on the west coast of the United States. Dataset includes total mercury concentrations in western gulls from three colony locations and associated foraging habitat of individual gulls.
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