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Laboratory experiment data—turbidity response to increasing silt and clay concentration These data were compiled during a laboratory experiment showing the turbidity response to increasing silt and clay concentration. The sediment used for the laboratory experiment was collected in the Grand Canyon study area, from the bank of the Little Colorado River, approximately 1 kilometer upstream from its confluence with the Colorado River. The sediment was passed through a 63 µm sieve to isolate the silt-and-clay-size fraction. The silt and clay was completely dried in an oven (at 105 degrees Celsius for 12 hours), weighed, mechanically disaggregated, and added in stages to a measured volume of water to calculate concentration. The sediment was kept in suspension with an electric stirrer and turbidity was... Tags: Arizona, Colorado River, Grand Canyon, Information Sciences, Little Colorado River, All tags... Marble Canyon, USGS Science Data Catalog (SDC), Water Quality, Water Resources, clay concentration, false low turbidity, laboratory experiment data, linear response, maximum recording level, maximum response, negative response, silt concentration, turbidity, Fewer tags 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 Conservation easements in the Prairie Pothole Region of North Dakota: characteristics of wetland catchments and key factors for determination of drainage setback distances This data release includes characteristics of wetland catchments associated with U.S. Fish and Wildlife conservation easement lands located in the Prairie Pothole Region of North Dakota. Characteristics include wetland catchment areas, slope length, land use, soil mapping unit, and slope grades of representative soils. County and ecoregion also are included. Summary data pertaining to lateral setback distances, or drainage setbacks, also are presented by county and soil mapping unit for a range of subsurface drainage system characteristics (i.e., drain pipe depth and diameter). Additionally, calculated variables used for data analyses and presentation in the manuscript associated with this data release are included. Categories: Data; Tags: North Dakota, USGS Science Data Catalog (SDC), conservation easements, environment, hydrology, All tags... inlandWaters, lateral effect distance, subsurface drainage systems, wetland ecosystems, Fewer tags Western Spadefoot Habitat Selection Based on Radio Telemetry in Orange County, California 2019 We conducted a radio telemetry study of adult western spadefoots (Spea hammondii) at 2 sites in southern California to characterize their survival, behavior, and movements from breeding through aestivation to inform conservation and management for the species. These data support the following publication: Halstead, B.J., Baumberger, K.L., Backlin, A.R., Kleeman, P.M., Wong, M.N., Gallegos, E.A., Rose, J.P., and Fisher, R.N., 2021. Conservation implications of spatiotemporal variation in the terrestrial ecology of an ephemeral pool-breeding amphibian. The Journal of Wildlife Management. Categories: Data; Tags: California, Orange County, Southern California, Spea hammondii, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, activity, amphibians, anuran, biota, ecology, environment, habitat selection, home range, movement, survival, western spadefoot, Fewer tags Distribution and status of five non-native fish species in the Tampa Bay drainage (USA), a hot spot for fish introductions-Data This dataset provides supporting information for the species distribution data used in the associated manuscript. Collections of five non-native fish species were made by a number of institutions, and several capture techniques were used. This dataset also includes number of individuals of each species captured at each locality. Categories: Data; Types: Citation; Tags: Alafia River, Aquatic Biology, Florida, Hillsborough River, Little Manatee River, All tags... Manatee River, Tampa Bay basin, USA, USGS Science Data Catalog (SDC), Wildlife Biology, non-native species, species dispersal, species distribution, Fewer tags 2008 - Present Ecosystem History of South Florida's Estuaries Database (ver. 2.0, June 2022) The 2008 - Present Ecosystem History of South Florida's Estuaries Database contains listings of all sites (modern and core) and modern monitoring site survey information (water chemistry, floral and faunal data, etc.). Three general types of data are contained within this database: 1) Modern Field Data (2008-present), 2) Master list of location information on all modern sites, and 3) Core data - location information. Data are available for modern sites (from 2008 to present) and cores in the general areas of Florida Bay, Biscayne Bay, and the southwest (Florida) coastal mangrove estuaries. Specific sites in the Florida Bay area include Taylor Creek, Bob Allen Key, Russell Bank, Pass Key, Whipray Basin, Rankin Bight,... Categories: Data Release - Revised; Tags: 002, 004, 007, 008, 012, All tags... 014, Alinas Reef, Alligator Bay, Arsenicker Bank, Arsenicker Key, Arsenicker Shoal, Barnes Key, Big Cypress National Preserve, Big Lostmans Bay, Biscayne Bay, Black Creek Canal, Black Point, Black Point Creek Canal, Bob Allen Key, Bottle Key, Broad River, Broad River Bay, Broward County, Buchanan Bank, Butternut Key, Buttonwood Keys, C-111 Canal, Caesars Cut, Cape Sable, Card Bank, Central Everglades, Chicken Key, Chokoloskee Bay, Clive Key, Collier County, Convoy Point, Crab Keys, Crocodile Point, Dead Terrapin Basin, Dragover Bank, Duck Key, Everglades National Park, FL, Featherbed Bank, Florida, Florida Bay, Florida City Canal, Florida Keys, Gopher Pass, Goulds Canal, Gun Rock Point, Harney River, Huston River, Ironwood Channel, Jim Foot Key, Johnson Key, Lake Key, Lignumvitae Basin, Little Blackwater Sound, Little Madeira Bay, Long Sound, Lostmans River, Manatee Bay, McCormick Creek, Miami-Dade County, Middle Key Basin, Military Canal, Monroe County, Monroe Lake, Mowry Canal, Nest Key, North Canal, North Prong Otter Creek, North River, Old Dan Bank, Old Sweat Bank, Otter Creek, Oyster Bay, Park Key, Pass Key, Pavillion Key, Pelican Bank, Peterson Keys, Ponce de Leon Bay, Porjoe Key, Princeton Canal, Prong Creek, Rabbit Key, Rabbit Key Basin, Rankin Basin, Rankin Lake, Roberts River, Rodgers River Bay, Russell Key, SW Big Cypress, Samphire Keys, Schooner Bank, Shark River, Shell Creek, Sid Key, South East Coast, Sprigger Bank, Spy Key, Storter Bay, Tarpon Bay, Taylor Creek, Trout Creek, US, USGS Science Data Catalog (SDC), United States, Whipray Basin, White Water Bay, biology, biota, climatologyMeteorologyAtmosphere, conservation paleobiology, diatoms, ecology, ecology, ecosystem history, environment, estuary, foraminifera, gastropods, geography, geologic core, geology, geoscientificInformation, inlandWaters, molluscs, mollusks, oceans, ostracodes, paleoecology, paleontology, pelecypods, pollen, salinity, sedimentology, vegetation, Fewer tags Hatchery-reared Roundtail Chub Data, Arizona USA These data were compiled as part of a larger study to evaluate post-stocking survival of hatchery-reared Roundtail Chub. We conducted a two year study (Dec. 2015 – Mar. 2017) in the upper Verde River at the Burnt Ranch stocking location near Paulden, Arizona. Young of year Roundtail Chub were acquired from the Arizona Research and Conservation Center in Cornville, Arizona. Passive integrated transponder (PIT) tags (BioMark, 12.5 mm 134.2 kHz FDX) were implanted into Roundtail Chub each year (n = 333, Year 1; n = 2177, Year 2) prior to stocking. Each year, fish were measured (total length, TL, mm) before release (reflected in Pre-Stocking data table). We used two methods to recapture stocked fish, one passive and... Tags: Aquatic Biology, Arizona, Burnt Ranch, Ecology, Geography, All tags... Information Sciences, PIT tags, Paulden, Roundtail Chub, USGS Science Data Catalog (SDC), Verde River, Wildlife Biology, antenna, biological monitoring, biological sampling, biota, capture-recapture studies, channel wiidth, data release, detections, electrofishing, field sampling, fish, fish measurements, fish recapture, fyke net, hatchery-reared Roundtail Chub, measurement, passive integrated transponder tags, post-stocking survival, survey, survey equipment, survey methods, survival, upper Verde River, Fewer tags Annotated bibliography of grazing effects on amphibians and their habitats (ver. 2.0, February 2022) This database contains literature citations and associated summaries pertaining to livestock grazing effects on amphibians and their habitats, with an emphasis on the Oregon spotted frog (Rana pretiosa) and other listed/sensitive wetland-breeding amphibians in the western United States. This is not meant to be an exhaustive list, nor did we perform a systematic meta-analysis; rather, literature records were included based on topical relevance. *HINT: If you are looking for the database SEARCH TOOL, scroll down to 'Attached Files' and download 'Annotated_bibliography_with_search_tool.accdb.' Open the database file to enter the search form.* This data release supersedes Rowe, J.C., Pearl, C.A., Adams, M.J., and McCreary,... Categories: Data; Tags: Aquatic Biology, Ecology, Land Use Change, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... abundance, amphibians, aquatic biology, biota, disturbance, environment, erosion, estrogenicity, exclosure, fecal bacteria, frogs, grazing, habitats, inlandWaters, land use, livestock, management, native species, nutrients, occupancy, pasture, salamanders, species richness, toads, trampling, vegetation, water quality, weed invasion, western United States, worldwide, Fewer tags Riparian vegetation data used for comparing sampling methods along the Colorado River, Grand Canyon, Arizona These data were collected as part of a methodologial comparison for collecting riparian vegetation data. Two common methods for collecting vegetation data were used: line-point intercept and 1m2 ocular quadrats (visual cover estimates). At each site and transect, both methods were used to collect cover and composition data by four different observers. The same transects and quadrats were utilized for both methods and all observers. Field data collected included percent cover for total living foliar cover, each plant species encountered, litter, dead plant material that is still standing, and ground cover features (biological soil crust, rock, sand, and fine soil particles). Line-point intercept data were collected... Tags: Arizona, Botany, Colorado River, Ecology, Geography, All tags... Glen Canyon Dam, Glen Canyon National Recreation Area, Grand Canyon, Information Sciences, Lees Ferry, USGS Science Data Catalog (SDC), biological sampling, biota, field sampling, line-point intercept, northern Arizona, ocular quadrat, riparian ecosystems, riparian environments, riparian vegetation, vegetation, vegetation sampling methods, Fewer tags Russian-thistle field and seed bank data at Petrified Forest National Park, Arizona, 2015-2016 These data were compiled as part of a field and growth chamber study of the establishment of Salsola tragus (Russian thistle), an invasive non-native annual plant in North America. Field work was conducted at Petrified Forest National Park, Arizona in 2015 and 2016 and the growth chamber study was conducted in 2016. The data represent field measurements of Salsola germination and growth (cover) and sediment movement at two field sites, one a stabilized sand sheet (SS) and the other on the ridge of a sand dune (SD). The data also represent a growth chamber assessment of the soil and litter seed bank from representative samples take at the two field sites. Tags: Arizona, Botany, Colorado Plateau, Ecology, Geography, All tags... Information Sciences, Land Use Change, North America, Petrifield Forest National Park, Salsola, USGS Science Data Catalog (SDC), annual plants, biota, cover, field data, field measurements, field monitoring, field observation, germination, growth, growth chamber, invasive plant, invasive species, litter seed bank, non-native plant, non-native species, plants (organisms), sand dune ridge, sediment, sediment movement, seed bank, seed germination, soil seed bank, southwest United States, stabilized sand sheet, Fewer tags Chesapeake Bay River Input Monitoring Network 1985-2017: Annual loads Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2017. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the RIM watersheds. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Maryland, New York, Pennsylvania, All tags... United States, Virginia, WRTDS, Washington DC, West Virginia, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags Polychlorinated biphenyl concentrations in adult walleye from the Fox River (Wisconsin) population, 2014 Adult walleye (10 females and 10 males) were caught in Fox River (Wisconsin) during April 2014. Total length, weight, and age were determined for each of the walleye. Whole-fish homogenates were prepared during 2017. Lipid concentration and polychlorinated biphenyl (PCB) congener concentrations were determined in each of the homogenates during 2017-2018. For each sample, PCB congener concentrations were summed to yield total PCB concentration. All lipid and PCB congener terminations were made at the University of Michigan School of Public Health in Ann Arbor, Michigan. Categories: Data; Tags: Aquatic Biology, Ecology, Environmental Health, Fox River, Green Bay, All tags... Lake Michigan, PCB contamination, PCB hot spots, Sander vitreus, USGS Science Data Catalog (SDC), Water Quality, Water Resources, Wildlife Biology, biota, polychlorinated biphenyls, polychlorinated biphenyls (PCBs), Fewer tags Bioelectrical impedance analysis for an endangered desert fish—Data These data were used to examine the effectiveness of a non-lethal tool (Bioelectrical Impedance Analysis, "BIA") to estimate the physiological condition of endangered and threatened fishes in the Colorado River Basin. We conducted laboratory trials using hatchery-raised Humpback Chub and Bonytail and wild-captured Roundtail Chub, where fish were subjected to different feeding trials to elucidate a response in physiological condition and different temperature treatments to approximate field conditions. At the end of each 6-week trial fish were removed from tanks, lateral and dorsal measurements of BIA were taken, and fish were sacrificed for proximate composition analysis (lipid, protein, water, ash, dry mass, energy... Types: Citation; Tags: Arizona, Bioelectrical Impedance Analysis, Bonytail, Colorado River Basin, Dorsal measurements, All tags... Fish condition, Flagstaff, Humpback Chub, Laboratory trials, Lateral measurements, Mortality rates, Proximate composition analysis, Roundtail Chub, Temperature correction equations, Threatened and endangered species, USGS Science Data Catalog (SDC), Fewer tags Chesapeake Bay River Input Monitoring Network 1985-2017: Short- and long-term trends Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2017. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the RIM watersheds. To determine the trend in loads, the annual load results are flow normalized to integrate out the year-to-year variability... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Maryland, New York, Pennsylvania, All tags... United States, Virginia, WRTDS, Washington DC, West Virginia, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags Acute toxicity of fairy shrimp and surrogate species tested with ten chemicals-Data The vernal pool fairy shrimp, Branchinecta lynchi, (Branchiopoda; Anostraca) and other fairy shrimp species have been listed as ‘threatened’ or ‘endangered’ under the United States’ Endangered Species Act (ESA). There is little information about the sensitivity of Branchinecta spp. to toxic effects of contaminants, making it difficult to determine whether they are adequately protected by water quality criteria. A series of acute (24 hr) lethality/immobilization tests were conducted with three species of fairy shrimp (Branchinecta lynchi, Branchinecta lindahli, and Thamnocephalus platyurus) and 10 chemicals with varying modes of toxic action: ammonia, potassium, chloride, sulfate, chromium(VI), copper, nickel, zinc,... Categories: Data; Types: Citation; Tags: NA, USGS Science Data Catalog (SDC), acute toxicity, vernal pool fairy shrimp, water-only toxicity Novel genetic resources to facilitate future molecular studies in freshwater mussels (Bivalvia: Unionidae) Here we provide public access to six DNA sequence alignments and details on all specimens utilized in Smith and Johnson (2020). Categories: Data; Tags: DNA, USGS Science Data Catalog (SDC), biota, conservation, freshwater mussel, All tags... genetics, Fewer tags Food-web dynamics and isotopic niches in deep-sea communities residing in a submarine canyon and on the adjacent open slopes Examination of food webs and trophic niches provide insight into organisms’ functional ecology, yet few studies have examined the trophodynamics within submarine canyons, where the interaction of morphology and oceanography influences food deposition. Stable isotope analysis and Bayesian ellipses documented deep-sea food web structure and trophic niches in Baltimore Canyon and the adjacent open slopes in the U.S. Mid-Atlantic Region. Results revealed isotopically diverse feeding groups, comprising approximately 5 trophic levels. Regression analysis indicated that consumer isotope data are structured by site (canyon vs. slope), feeding group, and depth. Benthic feeders were enriched in 13C and 15N relative to suspension... Categories: Data; Types: Citation; Tags: Atlantic Ocean, Baltimore Canyon, Bayesian ellipses, USGS Science Data Catalog (SDC), deep-sea, All tags... stable isotopes, submarine canyon, Fewer tags Molecular data to investigate phylogeographic patterns, species boundaries, and demographic history of a North American freshwater mussel species complex (Bivalvia: Unionidae) Here we provide public access to three DNA sequence alignments (COI, ND1, ITS1) and details on all specimens utilized in Keogh et al. (in review). Categories: Data; Tags: Aquatic Biology, DNA, Genetics, USGS Science Data Catalog (SDC), biota, All tags... conservation, freshwater mussel, genetics, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010 The USGS Southwest Repeat Photography Collection (‘Collection’), formerly named the Desert Laboratory Repeat Photography Collection, is now housed by the Southwest Biological Science Center (SBSC) in Flagstaff, Arizona. It contains images from the late 1800s to mid-2000s, and was assembled over decades by now retired USGS scientists Drs. Robert H. Webb and Raymond M. Turner. There are 80 camera points, or stakes, along Kanab Creek in the Collection, with images and fields notes taken between 1872 and 2010 (a 138-year span). About one-fourth of the Kanab Creek film had been previously digitized, but none of the associated materials, including field notes, were digitized. The goal of the Fiscal Year (FY) 2016 Kanab... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags Chesapeake Bay River Input Monitoring Network 1985-2017: Average annual yields Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2017. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). Yields (represents the mass of constituent transported from a unit area of a given watershed) are used to compare the export loads from one basin to another. Yield results are obtained by dividing the annual load (pounds) of a given constituent by the respective... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Maryland, New York, Pennsylvania, All tags... United States, Virginia, WRTDS, Washington DC, West Virginia, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags 1 2 3 4 »