7,841 Works

Metagenetic analysis of stream community composition based on environmental DNA

Robert S. Cornman, McKenna Jr, James E., Jennifer Fike, Sara J. Oyler-McCance & Robin Johnson
A survey of environmental DNA was performed in Tunison Creek downstream of the USGS Tunison Aquatic Laboratory. The goal of the survey was to characterize the source ecological community at multiple trophic or taxonomic levels by associating DNA fragments with reference databases. Three taxonomically informative genetic loci were used: the mitochondrial cytochrome oxidase 1 locus, the mitochondrial 12S ribosomal locus, and the bacterial/organellar 16S ribosomal locus. The data set includes a list of sample and...

White-faced Ibis (Plegadis chihi) bWFIBx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for White-faced Ibis. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

Stable isotopic insights into Bathymodiolus childressi at two seeps in the US Atlantic margin, data release

Amanda W Demopoulos, Jennifer P McClain Counts, Jill R Bourque, Carolyn Ruppel, Steve W. Ross, Brian J Smith & Sandra Brooks
Chemosynthetic environments support distinct benthic communities capable of utilizing reduced chemical compounds for nutrition. Hundreds of methane seeps have been documented along the U.S. Atlantic margin (USAM), and detailed investigations at a few seeps have revealed distinct environments containing mussels, microbial mats, authigenic carbonates, and soft sediments. The dominant mussel Bathymodiolus childressi contains methanotrophic endosymbionts but is also capable of filter feeding. We used SIA (δ13C, δ 5N, and δ34S) and an isotope mixing model...

Red-tailed Hawk (Buteo jamaicensis) bRTHAx_CONUS_2001v1 Range Map

Jeff Lonneker, Nathan Tarr & Matt Rubino
This dataset represents a species known range extent for Buteo jamaicensis (Red-tailed Hawk). These range maps are created by attributing sub-watershed polygons with information of a species presence, origin, seasonal and reproductive use.

2015 High Resolution Seismic Data Recorded at Six Strong Motion Seismograph Sites in Napa and Solano Counties, California

Joanne H. Chan, Coyn Criley, Rufus D. Catchings & Mark R. Goldman
In May 2015, we acquired high-resolution seismic profiles near six strong motion instruments located in Napa and Solano Counties, California. These strong motion instruments recorded horizontal peak accelerations (PGAs) from 0.329g to 0.611g, which were among the highest recorded in the Napa area during the 24 August 2014 Mw 6.0 South Napa Earthquake. Our goal is to measure the seismic velocities of the underlying geologic material at each strong motion site using P- and S-wave...

Data release for Applying high-resolution imagery to evaluate restoration-induced changes in stream condition, Missouri River Headwaters Basin, Montana

Melanie K. Vanderhoof & Clifton M. Burt
Degradation of streams and associated riparian habitat across the Missouri River Headwaters Basin has motivated several stream restoration projects across the watershed. Many of these projects install a series of beaver dam analogues (BDAs) to aggrade incised streams, elevate local water tables, and create natural surface water storage by reconnecting streams with their floodplains. Satellite imagery can provide a spatially continuous mechanism to monitor the effects of these in-stream structures on stream surface area. However,...

Black-crested Titmouse (Baeolophus atricristatus) bBCTIx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Black-crested Titmouse. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

Data for Biogeochemical and Physical Processes Controlling Mercury and Selenium Bioaccumulation in Bighorn Lake, Bighorn Canyon National Recreation Area, Montana and Wyoming, 2015-2016

David L. Naftz, Elliott P. Barnhart, David P. Krabbenhoft, Sarah E. Janssen, Collin A. Eagles-Smith, Craig A. Stricker & Travis S. Schmidt
This dataset includes the field measurements and laboratory analyses of surface water, seston, fish tissue, and sediment samples collected from Bighorn Lake, within Bighorn Canyon National Recreation area (BICA), during high flow (July 2015) and low flow (August 2016) conditions. The study area includes 7-9 sampling sites that follow a transect spanning the entire length of the reservoir from the Bighorn and Shoshone River inflows to the afterbay and tailwater below Yellowtail dam. Multiple samples...

Olympic Marmot (Marmota olympus) mOLMAx_CONUS_2001v1 Habitat Map

Julie Prior-Magee & Alexa McKerrow
This dataset represents a species habitat distribution model for Olympic Marmot. These habitat maps are created by applying a deductive habitat model to remotely-sensed data layers within a species' range.

Data for Groundwater Age and Susceptibility of Poorly Consolidated Sedimentary Aquifers of the United States Gulf Coast: Results from the Southeast Coastal Plain (SECP), Coastal Lowland (CLOW), Mississippi Embayment and Texas Coastal Upland (METX) Principal Aquifer Networks

John E. Solder-
This data release documents eight Microsoft Excel tables; four which contain data for understanding groundwater ages in the South East Coastal Plain (SECP), Coastal Lowlands (CLOW) and Mississippi Embayment and Texas Coastal Uplands (METX) aquifer systems and four that describe the data fields. Results described include dissolved gas modeling results, environmental tracer concentrations (tritium, tritiogenic helium-3, sulfur hexafluoride, and radiogenic helium-4), mean age and age distribution, and carbon-14 geochmical modeling results Dissolved gas modeling results...

Carbon Exchange Data - Dwarf Cypress Sampling Location (Greater Everglades)

Barclay Shoemaker
Carbon dioxide exchange with the atmosphere over forested subtropical wetlands, such as cypress strands and pine forests in the Greater Everglades, is largely unknown. Here we report a first step in characterizing this atmospheric-ecosystem carbon (C) exchange, as measured with eddy covariance methods at three locations (Cypress Swamp, Dwarf Cypress and Pine Upland) for one year. This data set is an Excel file containing data for the Dwarf Cypress sampling location. It includes the following...

Water column nutrient processing rates in rivermouths of Green Bay, Lake Michigan: Data

James H Larson, Mary A Evans, Faith A Fitzpatrick, Paul Frost, Sean W Bailey, Robert Kennedy, William James, William B Richardson & Paul Reneau

Acidification and Increasing CO2 Flux Associated with Five, Springs Coast, Florida Springs (1991-2014)

Kira Barrera & Lisa L. Robbins
Scientists from the South West Florida Management District (SWFWMD) acquired and analyzed over 20 years of seasonally-sampled hydrochemical data from five first-order-magnitude (springs that discharge 2.83 m3 s-1 or more) coastal springs located in west-central Florida. These data were subsequently obtained by the U.S. Geological Survey (USGS) for further analyses and interpretation. The spring study sites (Chassahowitzka, Homosassa, Kings Bay, Rainbow, and Weeki Wachee), which are fed by the Floridan Aquifer system and discharge into...

Santa Catalina Shrew (Sorex ornatus willetti) mORSHw_CONUS_2001v1 Range Map

Adam Radel & Matt Rubino
This dataset represents a species known range extent for Sorex ornatus willetti (Santa Catalina Shrew). These range maps are created by attributing sub-watershed polygons with information of a species presence, origin, seasonal and reproductive use.

Shrew-mole (Neurotrichus gibbsii) mSHMOx_CONUS_2001v1 Range Map

Matthew Rubino & Nathan Tarr
This dataset represents a species known range extent for Neurotrichus gibbsii (Shrew-mole). These range maps are created by attributing sub-watershed polygons with information of a species presence, origin, seasonal and reproductive use.

Boat ramp locations within the Columbia River Basin with associated recreational use, water quality measurements, and risk assessment data for zebra and quagga mussels

Jill M Hardiman, Nancy E Elder, Glen S Holmberg, Tina P Garcia, Joshua Logan & Ralph Grundel
Aquatic invasive species are often transported between water bodies on boats or boat trailers, thus they are considered one of the primary vectors for new introductions of invasive species to a water body. This data set contains geographic positioning system locational data for boater access points, use data (i.e. recreational, fishing), water quality measurements (e.g. calcium concentrations, pH), risk assessment data, and other physical attributes (i.e. size, elevation) where available within the Columbia and Snake...

Water Quality and Hydrologic Data (2011-13) for Freshwater Science Paper titled, "Patterns of Diel Variation in Nitrate Concentrations in the Potomac River"

Douglas Burns
This data set includes nitrate concentration, water temperature, and discharge collected every 15 minutes during Dec. 2011 - Nov. 2013 from the USGS gage at the Potomac River near Wash, DC, Little Falls Pump Sta (01646500). Additional data includes day length, and photosynthetically active radiation from USDA research station in Beltsville, MD. Several calculations derived from these data are included in the data set. These data accompany a paper titled "Patterns of Diel Variation in...

Tri-Decadal Global Landsat Orthorectified Mosaics - TM

Earth Resources Observation And Science
Tri-Decadal Global Landsat Orthorectified mosaic data collections are derived from a global set of high-quality, relatively cloud-free orthorectified TM imagery from Landsat 4 and 5.

Total Phosphorus Load and Ancillary Data Related to Sources of Total Phosphorus in the Red River of the North Basin

Kolars, Kelsey A; Ryberg, Karen R; Falcone, James A
The Red River of the North (Red River) transports phosphorus from North Dakota, Minnesota, and South Dakota, to Manitoba, Canada, and eventually into Lake Winnipeg. Phosphorus load (or flux) is the amount of total phosphorus (TP) transported by the Red River. The effect of TP load on water quality is a concern, especially with respect to downstream eutrophication issues in Lake Winnipeg, Manitoba, Canada. There is interest at the State and International level to reduce...

Salinity tolerance of non-native suckermouth armoured catfish (Loricariidae: Pterygoplichthys sp.) from Kerala, India

A. Biju Kumar, Pam Schofield, Smrithy Raj & Sima Satheesh
Loricariid catfish of the genus Pterygoplichthys have been introduced in many localities around the world. They are freshwater fishes, but may also use low-salinity habitats such as estuaries for feeding or dispersal. Here we report results of a field survey and salinity-tolerance trials for a population of Pterygoplichthys sp. collected in Kerala, India. In both chronic and acute salinity-tolerance trials, fish were able to withstand salinities up to 12 ppt with no mortality; however, fish...

Map of Whooping Crane stopover site use intensity within the Great Plains from satellite telemetered birds, 2010-2014

David Brandt Aaron Pearse
Whooping cranes (Grus americana) of the Aransas-Wood Buffalo population migrate twice each year through the Great Plains in North America. Recovery activities for this endangered species include providing adequate places to stop and rest during migration, which are generally referred to as stopover sites. To assist in recovery efforts, initial estimates of stopover site use intensity are presented, which provide opportunity to identify areas across the migration range used more intensively by whooping cranes. We...

Simulated Groundwater Contributing Areas to Selected Streams, Ponds, Coastal Water Bodies, and Production Wells, Plymouth-Carver Region and Cape Cod, Massachusetts

Carl S. Carlson, John P. Masterson, Donald A. Walter & Jeffrey R. Barbaro
The U.S. Geological Survey (USGS) assisted the Massachusetts Department of Environmental Protection (MassDEP) with the Massachusetts Estuary Project (MEP), by delineating groundwater-contributing areas to various hydrologic features including ponds, streams, and coastal water bodies, throughout southeastern Massachusetts. These contributing areas were delineated over a 6-year period from 2003 to 2008 using previously published USGS groundwater-flow models for the Plymouth-Carver region (Masterson and others, 2009), the Sagamore (western) and Monomoy (eastern) flow lenses of Cape Cod...

Data collected in 2008-2014 to assess nearshore subtidal community response to increased sediment load during removal of the Elwha River dams, Washington State, USA

Stephen P. Rubin, Helen D. Berry, Nancy E. Elder, Ian M. Miller & Jeffrey J. Duda
Data are time series of substrate grain size, remotely sensed water column turbidity, and measures of abundance (e.g., density, percent cover) of the nearshore subtidal (3-17 m depth) benthic community (vegetation, invertebrates, and fish) collected before (2008-2011) and during dam removal (2012-2014).

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