Filters: Tags: mercury contamination (X) > partyWithName: Western Ecological Research Center (X)

Filters Date Range Past year (3) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts Josh T Ackerman U.S. Geological Survey - ScienceBase Ecosystems Sarah H Peterson Christopher A Hartman More... Categories Data (8) Tag Types Theme (8) Place (7) USGS Scientific Topic Keyword (7) Harvest Set (8) Tag Schemes None (5) USGS Thesaurus (7) ISO 19115 Topic Category (7) CommonGeographicAreas (2) none (1) na (1) Coastal and Marine Ecological Classification Standard (1) More... View Results as: JSON ATOM CSV

Maternal Transfer of Mercury to Northern Elephant Seal Pups We used free-ranging northern elephant seals as a model species to investigate maternal transfer of mercury (Hg) to pups in relation to maternal traits, including maternal blood mercury concentrations, and to quantify the links between pup lanugo mercury concentrations and maternal mesopelagic foraging behavior during gestation. We satellite tracked known-age adult females at sea during their seven-month-long foraging trip to determine maternal foraging strategies (geographic locations and diving depths) and quantified mercury concentrations in maternal blood and their pups’ blood and lanugo (which is defined as pup hair grown in utero) early in lactation when seals were hauled out. We then tested how the maternal... Categories: Data; Tags: Ecology, Environmental Health, Marine Oceanic Mesopelagic Layer, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... bioaccumulation, biota, contaminant transport, ecology, ecotoxicology, mercury, mercury contamination, seals, sea lions and walruses, Fewer tags Mercury Contamination of Red-legged Kittiwakes in the Western Subarctic Pacific Ocean This dataset contains mercury concentrations and locations of wintering red-legged kittiwakes in the western subartic Pacific Ocean. These data support the following publication: Fleishman, AB, RA Orben, N Kokubun, A Will, R Paredes, JT Ackerman, A Takahashi, AS Kitaysky, and SA Shaffer. 2019. Wintering in the Western Subarctic Pacific increases mercury contamination of red-legged kittiwakes. Environmental Science and Technology, in press. Categories: Data; Tags: Pacific Ocean, USGS Science Data Catalog (SDC), Wildlife Biology, biogeography, biota, All tags... birds, contaminant exposure, distribution, hierarchical clustering, isotopic analysis, marine isoscape, mercury contamination, mesopelagic predator, migration (organisms), non-breading, seabird, seabird sentinels, stable isotopes, western subartic, Fewer tags Mercury and selenium concentrations in bird eggs at Great Salt Lake, Utah These metadata provide data used to examine mercury and selenium concentrations in eggs of birds breeding in wetlands of the Great Salt Lake ecosystem, Utah, particularly at Bear River Migratory Bird Refuge. Eggs were salvaged during 2010 - 2012 and include 33 species of birds. These data support the following publication: Ackerman, J.T., Herzog, M.P., Hartman, C.A., Isanhart, J., Herring, G., Vaughn, S., Cavitt, J.F., Eagles-Smith, C.A., Browers, H., Cline, C., and Vest, J., 2015, Mercury and selenium contamination in waterbird eggs and risk to avian reproduction at Great Salt Lake, Utah: U.S. Geological Survey Open-File Report 2015-1020, 164 p., https://doi.org/10.3133/ofr20151020. Categories: Data; Tags: Great Salt Lake, USGS Science Data Catalog (SDC), Wildlife Biology, biota, bird, All tags... mercury contamination, Fewer tags Feather mercury concentrations in North American raptors sampled at migration monitoring stations 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. These data support the following publication: Bourbour, R.P., Martinico, B.L., Ackerman, J.T., Herzog, M.P., Hull, A.C., Fish, A.M. and Hull, J.M., 2019. Feather mercury concentrations in North American raptors sampled at migration monitoring stations.... Categories: Data; Tags: Atlantic Flyway, Intermountain Flyway, Mississippi Flyway, Pacific Flyway, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, biota, mercury contamination, migratory species, wildlife, Fewer tags Avian Eggshell Thickness for 12 Species in the Western U.S. from 2014 to 2018 Eggshell thickness was measured at the egg equator and poles (sharp pole and blunt pole) for 12 avian species. Eggshell thickness was related to egg morphometrics (egg length and width), embryonic development, egg status, and mercury contamination. Individual eggshells each have up to 3 thickness measurements, linked by the eggshell identification. Each measurement has the corresponding egg length, egg width, egg status, mercury concentration, and nest identification. Additionally, eggshell thickness was measured at 5 equally spaced positions along the longitude of the egg (sharp pole, quarter egg, half egg, three quarter egg, and blunt pole) in a subset of Forster's tern (Sterna forsteri) eggs. These data support... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Nevada, USGS Science Data Catalog (SDC), Washington, biota, All tags... birds, egg measurements, eggshell, laboratory methods, mercury contamination, Fewer tags 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... Categories: Data; Tags: Anna’s hummingbird, Calypte anna, Mercury contamination, Northern California, Sierra Nevada foothills, All tags... USGS Science Data Catalog (SDC), Wildlife Biology, Fewer tags Incubation Constancy, Number of Incubation Recesses, Recess Duration and Mercury Concentrations for Tree Swallows at the Cosumnes River Preserve 2014 These metadata provide data used to examine tree swallow incubation behavior in relation to egg mercury concentration and maternal blood mercury concentration. These data were collected from tree swallows nesting in artificial wooden nest boxes at the Cosumnes River Preserved in California's Central Valley in 2014. Included are two datasets. One dataset provides daily incubation constancy (the proportion of the day the female spent incubating her eggs), the number of incubation recesses (breaks from incubating) taken by the attending female each day and the total mercury concentration of one egg from the female's clutch, and blood total mercury concentrations collected from the mother. Additionally, we include other... Categories: Data; Tags: Cosumnes River Preserve, Tachycineta bicolor, USGS Science Data Catalog (SDC), Wildlife Biology, animal behavior, All tags... biota, incubation behavior, incubation constancy, mercury contamination, tree swallow, Fewer tags Hair and blood total mercury concentrations in raccoons and striped skunks from Suisun Marsh 2016 to 2019 Total mercury concentrations were determined in hair and whole blood of raccoons and skunks in Suisun Marsh from 2016 to 2019. Individual skunks and raccoons were identified by a unique identifier (Animal_ID) and some animals were sampled multiple times. This dataset includes animal sex, age class, the date the sample was collected, animal body mass, head length, and head-to-torso length. These data support the following publication: Peterson, Sarah H., Ackerman, J.T., Hartman, C.A., Casazza, M.L., Feldheim, C.L., and Herzog, M.P. 2020. Mercury exposure in mammalian mesopredators inhabiting a brackish marsh. Environmental Pollution Categories: Data; Tags: California, THg, USGS Science Data Catalog (SDC), Wildlife Biology, bioaccumulation, All tags... biota, blood, capturing (animals), fur, hair, mammals, mercury contamination, wildlife, Fewer tags