John R Pierce
I am Ecologist at the USGS Forest and Rangeland Ecosystem Science Center
Science and Products
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Predictive mapping of seabirds, pinnipeds and cetaceans off the Pacific Coast of Washington Predictive mapping of seabirds, pinnipeds and cetaceans off the Pacific Coast of Washington
About this report This report supports Washington-led marine spatial planning and responsible stewardship of natural and cultural resources by the Olympic Coast National Marine Sanctuary. Washington state agencies and the sanctuary continually seek the best available science to improve management of marine uses and stewardship of resources (Etheridge et al., 2010; Washington Department...
Authors
Charles Menza, Jeffery B. Leirness, Tim White, Arliss Winship, Brian P. Kinlan, Laura Kracker, Jeannette E. Zamon, Lisa Ballance, Elizabeth Becker, Karin A. Forney, Jay Barlow, Josh Adams, David Pereksta, Scott Pearson, John Pierce, Steven J. Jeffries, John Calambokidis, Annie Douglas, Bradford C. Hanson, Scott R. Benson, Liam Antrim
From tails to toes: developing nonlethal tissue indicators of mercury exposure in five amphibian species From tails to toes: developing nonlethal tissue indicators of mercury exposure in five amphibian species
Exposure to environmental contaminants has been implicated as a factor in global amphibian decline. Mercury (Hg) is a particularly widespread contaminant that biomagnifies in amphibians and can cause a suite of deleterious effects. However, monitoring contaminant exposure in amphibian tissues may conflict with conservation goals if lethal take is required. Thus, there is a need to...
Authors
Adam Z. Pfleeger, Collin A. Eagles-Smith, Brandon M. Kowalski, Garth Herring, James J. Willacker, Allyson K. Jackson, John Pierce
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Ecosystem Metabolism Data for Brownlee Reservoir, Snake River, Idaho/Oregon, 2017-2023 Ecosystem Metabolism Data for Brownlee Reservoir, Snake River, Idaho/Oregon, 2017-2023
This data release presents multi-year ecosystem metabolism model outputs for Brownlee Reservoir at varying depths across three locations (River Miles 318, 300, and 286) along the Snake River. Data include field-collected model input data and model outputs of daily gross primary production (GPP), ecosystem respiration (R), and net ecosystem production (NEP). Field data were collected from...
Total mercury and methylmercury concentrations in biota from the Hells Canyon Reservoir Complex on the Snake River, Idaho and Oregon, USA Total mercury and methylmercury concentrations in biota from the Hells Canyon Reservoir Complex on the Snake River, Idaho and Oregon, USA
Comma-separated values (.csv) file containing data related to mercury in biota collected from the Hells Canyon Reservoir Complex on the Snake River, Idaho and Oregon.
Mercury concentrations in amphibian tissues and egg masses, fish tissues and sediment in subarctic, freshwater systems near Churchill, Manitoba, 2015-2019 Mercury concentrations in amphibian tissues and egg masses, fish tissues and sediment in subarctic, freshwater systems near Churchill, Manitoba, 2015-2019
Comma-separated values (.csv) files containing data related to amphibian, fish, and sediment sampling near Churchill, Manitoba between 2015-2019. Data files contain mercury concentrations in amphibian and fish tissues, amphibian egg masses, and sediment, as well as amphibian and fish morphometrics, life stage, site distance to coast and biome where the samples were collected.
Total mercury concentrations in bat tissues and blood from southwestern U.S. National Parks in 2023 Total mercury concentrations in bat tissues and blood from southwestern U.S. National Parks in 2023
Comma-separated values (.csv) file containing data related to bat sampling from southwestern U.S. National Parks in 2023. Data file contains mercury concentrations in bat tissues and blood.
Mercury in biota from Clear Lake, California (ver. 4.0, April 2026) Mercury in biota from Clear Lake, California (ver. 4.0, April 2026)
Comma-separated values (.csv) file containing data related to mercury in biota collected from Clear Lake California. This data release supersedes Pierce, J.R., Feyrer, F.V., Young, M.J., Enos, E.R., Clause, J.K., Alpers, C.N., and Eagles-Smith, C.A., 2022, Mercury in biota from Clear Lake, California (ver. 3.0, August 2024): U.S. Geological Survey data release, https://doi.org/10.5066...
Hydrological, Chemical, and Biological Characterization of the Snake River and Associated Tributaries and Irrigation Drains from River Mile 448 to 346, 2022 Hydrological, Chemical, and Biological Characterization of the Snake River and Associated Tributaries and Irrigation Drains from River Mile 448 to 346, 2022
This dataset includes field hydrologic measurements and laboratory analyses of surface and pore waters, sediments, benthic plants/biofilms, and biota along the Middle Snake River upgradient of the Hells Canyon Complex. The study region for this work focuses on a section of the Snake River heavily utilized for agriculture, with complex systems of irrigation diversion and return drainage...
Science and Products
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Predictive mapping of seabirds, pinnipeds and cetaceans off the Pacific Coast of Washington Predictive mapping of seabirds, pinnipeds and cetaceans off the Pacific Coast of Washington
About this report This report supports Washington-led marine spatial planning and responsible stewardship of natural and cultural resources by the Olympic Coast National Marine Sanctuary. Washington state agencies and the sanctuary continually seek the best available science to improve management of marine uses and stewardship of resources (Etheridge et al., 2010; Washington Department...
Authors
Charles Menza, Jeffery B. Leirness, Tim White, Arliss Winship, Brian P. Kinlan, Laura Kracker, Jeannette E. Zamon, Lisa Ballance, Elizabeth Becker, Karin A. Forney, Jay Barlow, Josh Adams, David Pereksta, Scott Pearson, John Pierce, Steven J. Jeffries, John Calambokidis, Annie Douglas, Bradford C. Hanson, Scott R. Benson, Liam Antrim
From tails to toes: developing nonlethal tissue indicators of mercury exposure in five amphibian species From tails to toes: developing nonlethal tissue indicators of mercury exposure in five amphibian species
Exposure to environmental contaminants has been implicated as a factor in global amphibian decline. Mercury (Hg) is a particularly widespread contaminant that biomagnifies in amphibians and can cause a suite of deleterious effects. However, monitoring contaminant exposure in amphibian tissues may conflict with conservation goals if lethal take is required. Thus, there is a need to...
Authors
Adam Z. Pfleeger, Collin A. Eagles-Smith, Brandon M. Kowalski, Garth Herring, James J. Willacker, Allyson K. Jackson, John Pierce
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Ecosystem Metabolism Data for Brownlee Reservoir, Snake River, Idaho/Oregon, 2017-2023 Ecosystem Metabolism Data for Brownlee Reservoir, Snake River, Idaho/Oregon, 2017-2023
This data release presents multi-year ecosystem metabolism model outputs for Brownlee Reservoir at varying depths across three locations (River Miles 318, 300, and 286) along the Snake River. Data include field-collected model input data and model outputs of daily gross primary production (GPP), ecosystem respiration (R), and net ecosystem production (NEP). Field data were collected from...
Total mercury and methylmercury concentrations in biota from the Hells Canyon Reservoir Complex on the Snake River, Idaho and Oregon, USA Total mercury and methylmercury concentrations in biota from the Hells Canyon Reservoir Complex on the Snake River, Idaho and Oregon, USA
Comma-separated values (.csv) file containing data related to mercury in biota collected from the Hells Canyon Reservoir Complex on the Snake River, Idaho and Oregon.
Mercury concentrations in amphibian tissues and egg masses, fish tissues and sediment in subarctic, freshwater systems near Churchill, Manitoba, 2015-2019 Mercury concentrations in amphibian tissues and egg masses, fish tissues and sediment in subarctic, freshwater systems near Churchill, Manitoba, 2015-2019
Comma-separated values (.csv) files containing data related to amphibian, fish, and sediment sampling near Churchill, Manitoba between 2015-2019. Data files contain mercury concentrations in amphibian and fish tissues, amphibian egg masses, and sediment, as well as amphibian and fish morphometrics, life stage, site distance to coast and biome where the samples were collected.
Total mercury concentrations in bat tissues and blood from southwestern U.S. National Parks in 2023 Total mercury concentrations in bat tissues and blood from southwestern U.S. National Parks in 2023
Comma-separated values (.csv) file containing data related to bat sampling from southwestern U.S. National Parks in 2023. Data file contains mercury concentrations in bat tissues and blood.
Mercury in biota from Clear Lake, California (ver. 4.0, April 2026) Mercury in biota from Clear Lake, California (ver. 4.0, April 2026)
Comma-separated values (.csv) file containing data related to mercury in biota collected from Clear Lake California. This data release supersedes Pierce, J.R., Feyrer, F.V., Young, M.J., Enos, E.R., Clause, J.K., Alpers, C.N., and Eagles-Smith, C.A., 2022, Mercury in biota from Clear Lake, California (ver. 3.0, August 2024): U.S. Geological Survey data release, https://doi.org/10.5066...
Hydrological, Chemical, and Biological Characterization of the Snake River and Associated Tributaries and Irrigation Drains from River Mile 448 to 346, 2022 Hydrological, Chemical, and Biological Characterization of the Snake River and Associated Tributaries and Irrigation Drains from River Mile 448 to 346, 2022
This dataset includes field hydrologic measurements and laboratory analyses of surface and pore waters, sediments, benthic plants/biofilms, and biota along the Middle Snake River upgradient of the Hells Canyon Complex. The study region for this work focuses on a section of the Snake River heavily utilized for agriculture, with complex systems of irrigation diversion and return drainage...