Search Results - "McKinney, Melissa A."

Rapid Environmental Change Drives Increased Land Use by an Arctic Marine Predator by Atwood, Todd C, Peacock, Elizabeth, McKinney, Melissa A, Lillie, Kate, Wilson, Ryan, Douglas, David C, Miller, Susanne, Terletzky, Pat

“…In the Arctic Ocean's southern Beaufort Sea (SB), the length of the sea ice melt season (i.e., period between the onset of sea ice break-up in summer and…”
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Evaluating the concentrations of total mercury, methylmercury, selenium, and selenium:mercury molar ratios in traditional foods of the Bigstone Cree in Alberta, Canada by Golzadeh, Nasrin, Barst, Benjamin D., Basu, Niladri, Baker, Janelle M., Auger, Josie C., McKinney, Melissa A.

“…Traditional foods provide nutritional, social, and economic benefits for Indigenous communities; however, anthropogenic activities have raised concerns about…”
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Sea Ice-associated Diet Change Increases the Levels of Chlorinated and Brominated Contaminants in Polar Bears by McKinney, Melissa A, Peacock, Elizabeth, Letcher, Robert J

“…Two global environmental issues, climate change and contamination by persistent organic pollutants, represent major concerns for arctic ecosystems. Yet, it is…”
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Validation of quantitative fatty acid signature analysis for estimating the diet composition of free-ranging killer whales by Remili, Anaïs, Dietz, Rune, Sonne, Christian, Iverson, Sara J., Roy, Denis, Rosing-Asvid, Aqqalu, Land-Miller, Haley, Pedersen, Adam F., McKinney, Melissa A.

“…Accurate diet estimates are necessary to assess trophic interactions and food web dynamics in ecosystems, particularly for apex predators like cetaceans, which…”
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Three decades (1983–2010) of contaminant trends in East Greenland polar bears (Ursus maritimus). Part 1: Legacy organochlorine contaminants by Dietz, Rune, Rigét, Frank F., Sonne, Christian, Born, Erik W., Bechshøft, Thea, McKinney, Melissa A., Letcher, Robert J.

“…Legacy organochlorine contaminants were determined in adipose tissues from 294 polar bears (Ursus maritimus) sampled in East Greenland in 23 of the 28years…”
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Distinct gut microbiomes in two polar bear subpopulations inhabiting different sea ice ecoregions by Franz, Megan, Whyte, Lyle, Atwood, Todd C., Laidre, Kristin L., Roy, Denis, Watson, Sophie E., Góngora, Esteban, McKinney, Melissa A.

“…Gut microbiomes were analyzed by 16S rRNA gene metabarcoding for polar bears ( Ursus maritimus ) from the southern Beaufort Sea (SB), where sea ice loss has…”
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Diet-driven mercury contamination is associated with polar bear gut microbiota by Watson, Sophie E., McKinney, Melissa A., Pindo, Massimo, Bull, Matthew J., Atwood, Todd C., Hauffe, Heidi C., Perkins, Sarah E.

“…The gut microbiota may modulate the disposition and toxicity of environmental contaminants within a host but, conversely, contaminants may also impact gut…”
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Fatty acid‐based diet estimates suggest ringed seal remain the main prey of southern Beaufort Sea polar bears despite recent use of onshore food resources by Bourque, Jennifer, Atwood, Todd C., Divoky, George J., Stewart, Connie, McKinney, Melissa A.

“…Polar bears (Ursus maritimus) from the southern Beaufort Sea (SB) subpopulation have traditionally fed predominantly upon ice‐seals; however, as the proportion…”
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Space‐use strategies drive diet composition of Baffin Bay polar bears by Stern, Jennifer H., Laidre, Kristin L., Born, Erik W., Wiig, Øystein, McKinney, Melissa A.

“…Polar bears (Ursus maritimus) depend on sea ice to hunt their ice‐associated prey. However, climate‐induced sea ice loss is leading to changes in space‐use…”
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Three decades (1983–2010) of contaminant trends in East Greenland polar bears (Ursus maritimus). Part 2: Brominated flame retardants by Dietz, Rune, Rigét, Frank F., Sonne, Christian, Born, Erik W., Bechshøft, Thea, McKinney, Melissa A., Drimmie, Robert J., Muir, Derek C.G., Letcher, Robert J.

“…Brominated flame retardants were determined in adipose tissues from 294 polar bears (Ursus maritimus) sampled in East Greenland in 23 of the 28years between…”
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Comparative hepatic microsomal biotransformation of selected PBDEs, including decabromodiphenyl ether, and decabromodiphenyl ethane flame retardants in Arctic marine-feeding mammals by McKinney, Melissa A., Dietz, Rune, Sonne, Christian, De Guise, Sylvain, Skirnisson, Karl, Karlsson, Karl, Steingrímsson, Egill, Letcher, Robert J.

“…The present study assessed and compared the oxidative and reductive biotransformation of brominated flame retardants, including established polybrominated…”
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Brominated Flame Retardants and Halogenated Phenolic Compounds in North American West Coast Bald Eaglet (Haliaeetus leucocephalus) Plasma by McKinney, Melissa A, Cesh, Lillian S, Elliott, John E, Williams, Tony D, Garcelon, David K, Letcher, Robert J

“…We report on the identity, characterization, and spatial trends of several brominated flame retardants and hydroxylated (OH-) and methoxylated (MeO-)…”
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Biotransformation of polybrominated diphenyl ethers and polychlorinated biphenyls in beluga whale ( Delphinapterus leucas) and rat mammalian model using an in vitro hepatic microsomal assay by McKinney, Melissa A., De Guise, Sylvain, Martineau, Daniel, Béland, Pierre, Arukwe, Augustine, Letcher, Robert J.

“…Although polychlorinated biphenyls (PCBs) and polybrominated diphenyl ether (PBDE) flame retardants are important organic contaminants in the tissues of marine…”
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Organohalogen contaminants and metabolites in beluga whale (Delphinapterus leucas) liver from two Canadian populations by McKinney, Melissa A., De Guise, Sylvain, Martineau, Daniel, Béland, Pierre, Lebeuf, Michel, Letcher, Robert J.

“…Contaminants described as organochlorines (OCs; e.g., polychlorinated biphenyls [PCBs]) are present in tissues of marine mammals, including beluga whales…”
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Ecological Change Drives a Decline in Mercury Concentrations in Southern Beaufort Sea Polar Bears by McKinney, Melissa A, Atwood, Todd C, Pedro, Sara, Peacock, Elizabeth

“…We evaluated total mercury (THg) concentrations and trends in polar bears from the southern Beaufort Sea subpopulation from 2004 to 2011. Hair THg…”
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Development and validation of a modified QuEChERS method for extracting polychlorinated biphenyls and organochlorine pesticides from marine mammal blubber by Pedersen, Adam F., Dietz, Rune, Sonne, Christian, Liu, Lan, Rosing-Asvid, Aqqalu, McKinney, Melissa A.

“…The monitoring of legacy persistent organic pollutants (POPs) in blubber of key sentinel marine mammal species has been conducted using established techniques…”
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Legacy persistent organic pollutants among multiple cetacean species in the Northwest Atlantic by Remili, Anaïs, McKinney, Melissa A., Maldonado-Rodriguez, Ambar, Ferguson, Steven H., Caputo, Michelle, Kiszka, Jeremy J.

“…The historical contamination of eastern Canadian shelf waters remains an ongoing concern, predominantly stemming from anthropogenic discharges in the Great…”
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Blubber-depth distribution and bioaccumulation of PCBs and organochlorine pesticides in Arctic-invading killer whales by Pedro, Sara, Boba, Conor, Dietz, Rune, Sonne, Christian, Rosing-Asvid, Aqqalu, Hansen, Martin, Provatas, Anthony, McKinney, Melissa A.

“…Sightings of killer whales (Orcinus orca) in Greenland have increased in recent years, coincident with sea ice loss. These killer whales are likely from…”
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Alkylated polycyclic aromatic hydrocarbons are the largest contributor to polycyclic aromatic compound concentrations in traditional foods of the Bigstone Cree Nation in Alberta, Canada by Golzadeh, Nasrin, Barst, Benjamin D., Baker, Janelle M., Auger, Josie C., McKinney, Melissa A.

“…Rising global demand for energy promotes extensive mining of natural resources, such as oil sands extractions in Alberta, Canada. These extractive activities…”
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Abiotic degradations of legacy and novel flame retardants in environmental and food matrices - a review by Leung, Gabriel, McKinney, Melissa A., Yaylayan, Varoujan, Bayen, Stéphane

“…Flame retardants (FRs) are commonly added to commercial products to achieve flammability resistance. Since most of them are not chemically bonded to the…”
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