Filters: Tags: {"type":"Place"} (X) > partyWithName: U.S. Geological Survey - ScienceBase (X) > partyWithName: Josh T Ackerman (X)

Filters Date Range Past year (8) 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 Western Ecological Research Center Ecosystems Diann J Prosser Sarah H Peterson Mark P Herzog More... Categories Data (26) Tag Schemes Geographic Names Information System (GNIS) (101) None (19) Common geographic areas (8) none (7) CommonGeographicAreas (4) FGDC (2) na (2) More... Tags (with Type=Place ) california (7) san francisco bay (4) pacific flyway (3) bear river migratory bird refuge (2) cosumnes river preserve (2) pacific ocean (2) suisun marsh (2) More... View Results as: JSON ATOM CSV

The timing of dabbling duckling hatch, nest departure and depredation in Suisun Marsh, California from 2015-2017 These data include a row for each duck nest equipped with a small video camera. We present the location of the nest, the timing of the start of hatch, the timing of the end of hatch, and the timing of the departure of the hen and ducklings from the nest. Additionally, this table includes any predators that were observed at the nest depredating eggs prior to hatch and any predators that were observed at the nest between hatch and departure from the nest. These data support the following publication: "Sitting ducklings: Timing of hatch, nest departure, and predation risk for dabbling duck broods" by Sarah H. Peterson, Joshua T. Ackerman, Mark P. Herzog, C. Alex Hartman, Rebecca Croston, Cliff L. Feldheim, and Michael... Categories: Data; Tags: Grizzly Island Wildlife Area, Mareca strepera, Suisun Marsh, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... biota, imprinting, nest depredation, nest exodus, predation, waterfowl, Fewer tags Historical methyl mercury in San Francisco Bay San Francisco Bay, California is considered a mercury-impaired watershed. Elevated concentrations of mercury are found in water and sediment as well as fish and estuarine birds. Sources of mercury to the watershed since 1845 include sediment-associated mercury from mercury mining, mercury losses from gold amalgamation activities in mines of the Sierra Nevada, aerial deposition of mercury from global and regional emissions to air, and the direct discharge of mercury to Bay waters associated with the urbanization and industrialization of the estuary. We assessed historical trends in mercury bioaccumulation by measuring mercury concentrations in feathers of the endangered California Ridgway’s rail (formerly California... Categories: Data; Tags: California Ridgway's Rail, Feathers, Ice Cores, Lake Tahoe, Mercury, All tags... San Francisco Bay, Sediment, Structural Equation Model, USGS Science Data Catalog (SDC), Wyoming, Fewer tags Predator Movements and Duck Nests in Relation to Habitat Features in Suisun Marsh, CA (2016-2019) This dataset describes mesopredator locations (raccoons and striped skunks), dabbling duck nest locations (mallard, gadwall, and cinnamon teal), northern harrier nest locations, and random locations in relation to a set of habitat features in Suisun Marsh, California during 2016 through 2019. We designed a series of questions to link fine-scale predator movements and vulnerability of dabbling duck nests to predator encounters and egg predation. We conducted our study over a 4-year period using 41 GPS-collared raccoons and striped skunks, two of the most widespread mammalian predators of waterfowl eggs in North America, and more than 2000 monitored duck nests. Each night of movement for mesopredators contains the... Categories: Data; Tags: California, Suisun Marsh, USGS Science Data Catalog (SDC), Wildlife Biology, animal behavior, All tags... biota, environment, wetland ecosystems, 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 Migration stopover ecology of cinnamon teal in western North America Identifying migration routes and fall stopover sites of cinnamon teal (Spatula cyanoptera septentrionalium) can provide a spatial guide to management and conservation efforts, and address vulnerabilities in wetland networks that support migratory waterbirds. Using high spatio-temporal resolution GSM-GPS transmitters, we tracked the fall migration of 61 cinnamon teal across western North America over three years (2017-2019). We marked cinnamon teal primarily during spring/summer in important breeding and molting regions across seven states (California, Oregon, Washington, Idaho, Utah, Colorado, and Nevada). We assessed migration routes and timing, detected 261 fall stopover sites, and identified specific ecoregions... Categories: Data; Tags: North America, USGS Science Data Catalog (SDC), biota, birds, habitats, All tags... migration (organisms), natural resource management, wetland ecosystems, wildlife biology, Fewer tags Egg Morphometric Data Obtained for White-faced Ibis Nesting in Bear River Migratory Bird Refuge, Great Salt Lake, Utah (2010-2012) This data consists of egg morphometric data from white-faced ibis. Eggs were collected in the field and then measured and dissected in the lab to obtain estimates of length, width and mass. This data supports the following publication: Herzog, M.P., Ackerman, J.T. and Hartman, C.A., 2021. Egg morphometrics and egg shape coefficients for White-faced Ibis (Plegadis chihi). The Wilson Journal of Ornithology. Categories: Data; Tags: Bear River Migratory Bird Refuge, USGS Science Data Catalog (SDC), biota, birds, field inventory and monitoring, All tags... wildlife, Fewer tags Nest Data for White-faced Ibis in Bear River Migratory Bird Refuge, Great Salt Lake, Utah in Summer 2012 Nest monitoring data of white-faced ibis. Data were collected at seven day intervals and provide information on success and failure of the nest during that interval. Summary vegetation and habitat data were also collected at the nest. These data support the following publication: Herzog, M.P., Ackerman, J.T., Hartman, C.A. and Browers, H., 2020. Nesting ecology of White-faced Ibis (Plegadis chihi) in Great Salt Lake, Utah. The Wilson Journal of Ornithology, 132(1), pp.134-144. Categories: Data; Tags: Bear River Migratory Bird Refuge, USGS Science Data Catalog (SDC), biota, birds, field inventory and monitoring, All tags... vegetation, wildlife, Fewer tags Breeding Waterbird Populations in South San Francisco Bay 2005-2019 The dataset includes three separate excel spreadsheets which provides waterbird (and predator) observations within individual survey units during the May 2019 breeding waterbird survey of south San Francisco Bay (2019WaterbirdSurveyFullData.xlsx), the total number of American avocets, black-necked stilts, and Forster's terns within each pond unit surveyed during the May 2019 survey (2019WaterbirdSurveyPondModel.xlsx), and the annual total number of nests for American avocets, black-necked stilts, and Forster's terns in south San Francisco between 2005 and 2019 (SouthBayWaterbirdNests2005-2019.xlsx). These data support the following publication: Hartman, C.A., Ackerman, J.T., Schacter, C.R., Herzog, M.P., Tarjan,... Categories: Data; Tags: San Francisco Bay, USGS Science Data Catalog (SDC), Wildlife Biology, biota, birds, All tags... estuarine ecosystems, land use change, long-term ecological monitoring, migratory species, population dynamics, wetland ecosystems, Fewer tags Variability of mercury concentrations among whole bird feathers, feather homogenates, and feather components quantified in California in 2017-2018 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. Categories: Data; Tags: NA, USGS Science Data Catalog (SDC), Wildlife Biology, biomonitoring, biota, All tags... contaminants, down feathers, ecotoxicology, feather variability, heavy metals, method development, wildlife toxicology, Fewer tags Mercury Bioaccumulation in US National Parks Using Dragonfly Larvae as Biosentinels, 2009-2018 Comma-separated values (.csv) files containing data related to a National-scale assessment of mercury bioaccumulation in the US National Parks using dragonfly larvae as biosentinels through a citizen science framework. Categories: Data; Tags: Acadia National Park, Allegheny Portage Railroad National Historic Site, Apostle Islands National Lakeshore, Appomattox Court House National Historical Park, Aquatic Biology, All tags... Battle Creek Cypress Swamp, Bear Creek Lake Park, Bear Meadows Natural Area, Big Bend National Park, Big Cypress National Park, Big Thicket National Preserve, Buffalo National River, Cape Cod National Seashore, Capitol Reef National Park, Carl Sandburg Home National Historic Site, Channel Islands National Park, Chickasaw National Recreation Area, Colorado National Monument, Congaree National Park, Cuyahoga Valley National Park, Death Valley National Park, Delaware Water Gap National Recreation Area, Denali National Park and Preserve, Devils Tower National Monument, East Inlet Natural Area-Connecticut Lakes Nature Preserve, Ecology, Environmental Health, Everglades National Park, Fort Worth Nature Center and Refuge National Natural Landmark, Gateway National Recreation Area, Glacier Bay National Park & Preserve, Glacier National Park, Glen Canyon National Recreation Area, Golden Gate National Recreation Area, Grand Canyon National Park, Grand Portage National Monument, Grand Teton National Park, Great Basin National Park, Great Sand Dunes National Park, Great Smoky Mountains National Park, Gulf Islands National Seashore, Hawaii Volcanoes National Park, Homestead National Historic Site, Hot Springs National Park, Indiana Dunes National Park, Isle Royale National Park, Jean Lafitte National Historical Park and Preserve, John Day Fossil Beds National Monument, Katahdin Woods and Waters National Monument, Katmai National Park and Preserve, Kenilworth Park & Aquatic Gardens, Klondike Gold Rush National Historical Park, Knife River Indian Villages National Historic Site, Lake Clark National Park, Lassen Volcanic National Park, Lewis and Clark National Historical Park, Mammoth Cave National Park, Marsh-Billings-Rockefeller National Park, Maurice National Wild & Scenic River, Minute Man National Historical Park, Mississippi National River & Recreation Area, Monocacy National Battlefield, Montezuma Castle National Monument, Mount Rainier National Park, Natchez Trace Parkway and National Scenic Trail, Niobrara National Scenic River, North Cascades National Park, Olympic National Park, Oregon Caves National Monument, Ozark National Scenic Riverway, Padre Island National Seashore, Pictured Rocks National Lakeshore, Pinnacles National Park, Pipestone National Monument, Prince William Forest Park, Pu'ukohola Heiau National Historic Site, Redwood National Park, Richmond National Battlefield Park, Rock Creek Park, Rocky Mountain National Park, Roosevelt-Vanderbilt National Historic Sites, Saguaro National Park, Saint Croix National Scenic Riverway, Saint-Gaudens National Historic Site, San Juan Island National Historical Park, Santa Monica Mountains National Recreation Area, Saugus Iron Works National Historic Site, Sequoia & Kings Canyon National Parks, Shenandoah National Park, Sleeping Bear Dunes National Lakeshore, Tallgrass Prairie National Preserve, Timucuan Ecological Historic Preserve, Tumacacori National Historical Park, Tuzigoot National Monument, USGS Science Data Catalog (SDC), Upper Delaware Scenic and Recreational River, Valles Caldera National Preserve, Voyageurs National Park, Water Quality, Weir Farm National Historic Site, Wildlife Biology, Wind Cave National Park, Women’s Rights National Historical Park, Yellowstone National Park, Yosemite National Park, Zion National Park, biota, environment, mercury contamination, Fewer tags How Mallard and Gadwall Hens Nesting in Grizzly Island Wildlife Area Respond when Flushed (2015 - 2018) This dataset describes responses to flushes by surveyors and predators for mallard and gadwall hens nesting on the Grizzly Island Wildlife Area, Suisun Marsh, California in 2015 through 2018. It includes the start time and duration of recesses, as well as the cause of recess initiation and responses of hens to various trapping activities at the nest site. These data support the following publication: Croston, R., Hartman, C.A., Herzog, M.P., Peterson, S.H., Kohl, J.D., Overton, C.T., Feldheim, C.L., Casazza, M.L. and Ackerman, J.T., 2021. Interrupted incubation: How dabbling ducks respond when flushed from the nest. Ecology and Evolution. Categories: Data; Tags: Suisun Bay, USGS Science Data Catalog (SDC), Wildlife Biology, biota, duck incubation recess Nocturnal Incubation Recess and Flushing Behavior by Duck Hens Nesting in Grizzly Island Wildlife Area 2015-2018 This dataset describes nocturnal incubation recess behavior for mallard and gadwall hens nesting in Grizzly Island Wildlife Area in breeding seasons 2015-2018. It includes the frequency, start time and duration of recesses, and details a method for determining whether a recess was initiated in response to a predator at the nest using nest temperature data. These data support the following publication: Croston, R.L., Peterson, S.E., Hartman, C.A., Herzog, M.P., Feldheim, C.L., Casazza, M.L., Ackerman, J.T., 2021. Nocturnal incubation recess and flushing behavior by duck hens. Ecology and Evolution Categories: Data; Tags: California, Suisun Marsh, USGS Science Data Catalog (SDC), Wildlife Biology, animal behavior, All tags... biota, duck incubation recess, Fewer tags Fluctuating Asymmetry in Waterbirds in Relation to Mercury Exposure The dataset includes the bird species, sex, mercury concentration in breast feathers and whole blood, and the composite measure of fluctuating asymmetry. Statistical models were developed for each species to analyze the relationship between mercury exposure in either breast feathers or whole blood and the composite measure of fluctuating asymmetry, while accounting for the sex of each bird. Categories: Data; Tags: California, Ecology, Environmental Health, Exposure, Fluctuating asymmetry, All tags... Mercury, Mercury toxicity, San Francisco Bay, USGS Science Data Catalog (SDC), Wildlife Biology, Fewer tags Incubation recess times for mallard and gadwall hens nesting in Grizzly Island Wildlife Area 2015 - 2017 This dataset describes incubation recess timing for mallard and gadwall hens nesting in Grizzly Island Wildlife Area in breeding seasons 2015-2017. It includes the start time, end time, and duration of recesses. This data supports the following publication: Croston, R., Hartman, C.A., Herzog, M.P., Casazza, M.L., Feldheim, C.L. and Ackerman, J.T., 2020. Timing, frequency, and duration of incubation recesses in dabbling ducks. Ecology and Evolution. https://doi.org/10.1002/ece3.6078. Categories: Data; Tags: Suisun Bay, USGS Science Data Catalog (SDC), Wildlife Biology, biota, birds, All tags... duck incubation recess, ecosystem monitoring, organism growth and development, wildlife biology, 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 Wetland Management Strategy to Reduce Mercury Export in Water and Bioaccumulation in Fish Total mercury concentrations in western mosquitofish (Gambusia affinis) that were caged at specific locations within four control wetlands and four treatment wetlands for a 30-day exposure time period to test the effectiveness of wetland management strategy to reduce mercury contamination. Fish data only. Water data published in a separate data release by co-authors. These data support the following publication: Ackerman, J.T., Fleck, J.A., Eagles‐Smith, C.A., Marvin‐DiPasquale, M., Windham‐Myers, L., Herzog, M.P. and McQuillen, H.L., 2019. Wetland Management Strategy to Reduce Mercury in Water and Bioaccumulation in Fish. Environmental toxicology and chemistry. https://doi.org/10.1002/etc.4535 Categories: Data; Tags: Cosumnes River Preserve, USGS Science Data Catalog (SDC), bioaccumulation, fish, mercury, All tags... methlmercury, 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 1 2 »