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Data on annual total nitrogen loads and watershed characteristics used to develop a method to estimate the total nitrogen loads in small streams This USGS Data Release represents the data used to develop multiple linear regression models for estimating the loads of total nitrogen in small streams. Recursive partitioning and random forest regression were used to assess 85 geospatial, environmental, and watershed variables across 636 small (less than 585 square kilometers) watersheds to determine which variables are fundamentally important to the estimation of annual loads of total nitrogen. These data support the following publication: Kronholm, S.C., Capel, P.D., and Terziotti, Silvia, 2016, Statistically extracted fundamental watershed variables for estimating the loads of total nitrogen in small streams: Environmental Modeling and Assessment, 10 p., http://dx.doi.org/10.1007/s10666-016-9525-3. Categories: Data; Types: Citation; Tags: USGS Science Data Catalog (SDC), United states, Water Quality, fundamental variables, national model, All tags... nitrogen, random forest regression, recursive partitioning, Fewer tags Aqueous Phases of Bifenthrin in Mesocosms Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest United States, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags Characteristics of Spikes Delivered to Mesocosms Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags Soil, Geomorphology and Pre-European Settlement Vegetation Associations of Southwest Louisiana Defining the pre-European range of vegetation communities can enhance our understanding of the role soil, hydrology, and climate had on climax plant communities within southwest Louisiana. Coastal prairie grasslands were in a perpetual state of succession due to two primary disturbances; grazing, primarily by bison and other ungulates, and fires ignited by lightning and Native Americans. Along its borders, prairie vegetation blended into adjacent plant communities forming biologically diverse ecotones that may have fluctuated between a prairie, marsh, or forest dominated community as a result of variable conditions including climate cycles, disturbance and soil characteristics. Since European settlement, this landscape... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: grassland ecosystems Mississippi barrier island land area change 1984-2016 The analyses of landscape change presented in this dataset use Landsat Thematic Mapper (TM), Enhanced Thematic Mapper (ETM) and Operational Land Imager (OLI) to assess changes in land area through time. All cloud-free dates of imagery from 1984 through early 2016 were used in this analysis. This amounted to a total of 174 dates of imagery which were analyzed. No water level restrictions were used during the image selection process as gages with a period of record sufficient for this analysis are not available nearby. Persistent loss and gain data are presented for 1984-2016. Categories: Data; Types: Citation; Tags: Cat Island, Horn Island, Mississippi, Petit Bois Island, Ship Island, All tags... USGS Science Data Catalog (SDC), change analysis, hurricane effects, landscape change, shoreline erosion, wetland change, wetland loss, Fewer tags Histology data in support of manuscript "Pre-mining trace element and radiation exposure to biota from a breccia pipe uranium mine in the Grand Canyon (Arizona, USA) watershed" The risks to wildlife and humans from uranium (U) mining to the Grand Canyon watershed are largely unknown. In addition to U, other co-occurring ore constituents contribute to risks to biological receptors depending on their toxicological profiles. This data was collected to characterize the pre-mining concentrations of total arsenic (As), cadmium (Cd), copper (Cu), lead (Pb), mercury (Hg), nickel (Ni), selenium (Se), thallium (Tl), U, and zinc (Zn); radiation levels; and histopathologies in biota (vegetation, invertebrates, amphibians, birds, and mammals) at the Canyon Mine. Categories: Data; Types: Citation; Tags: Grand Canyon, biological resources, chemistry, uranium, uranium mining Photoelectric erosion pin (PEEP) data from Cumberland Island National Seashore (CUIS), May 2012 - May 2013 This dataset contains daily estimates of erosion for select time windows at four sites along the back barrier margin of Cumberland Island National Seashore (CUIS). The four locations selected for instrumentation are referenced by the name of the general area where they were located and are as follows: Brickhill Bluff (bb), Dungeness Wharf (dw), Plum Orchard (po), and Racoon Key (rk). Additionally, this dataset provides offsets that were used to correct the photo-electric erosion pin (PEEP) erosion values to those measured in the field. Using the offsets and magnitude of erosion between site visits, a running cumulative sum of erosion is also provided. Categories: Data; Types: Citation; Tags: Camden County, Cumberland Island National Seashore, Georgia, barrier islands, coastal erosion, All tags... cumberland island, erosion pins, peep, Fewer tags Bifenthrin Absorption to Mesocosm Walls Resulting From the Delivery of a Bifenthrin Spiked Suspended Sediment Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest United States, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags High resolution landcover for the Western Gulf Coastal Plain of Louisiana The dataset includes Land Use/Land Cover types throughout the Chenier Eco-Region in Southwest Louisiana. Using the 2015 NAIP dataset (1m) as the basemap, E-Cognition image objects were derived from the multiresolution segmentation algorithm at 75 and 250 segments. Attempts to refine the data training methods using E-cognition, to extrapolate automating categories of this information to the entire map resulted with exceedingly low accuracy. Therefore, a raster was produced by piecing together several data resources, which provide reliable data for specific LULC categories. This process involved stitching together more reliable sources for specific categories to apply to higher resolution (75) segmentation product.... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: LA, Landcover, Landuse, Louisiana, coastal Louisiana, All tags... environment, environment, imageryBaseMapsEarthCover, imageryBaseMapsEarthCover, Fewer tags Concentration of Bifenthrin in Adult Insects That Emerged from Mesocosms Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest United States, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags General Water Chemistry and Temperature Data from Mesocosms Exposed to Bifenthrin Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest United States, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags Chemistry, radiation and histopathology data in support of manuscript "Pre-mining trace element and radiation exposure to biota from a breccia pipe uranium mine in the Grand Canyon (Arizona, USA) watershed" The risks to wildlife and humans from uranium (U) mining to the Grand Canyon watershed are largely unknown. In addition to U, other co-occurring ore constituents contribute to risks to biological receptors depending on their toxicological profiles. This data was collected to characterize the pre-mining concentrations of total arsenic (As), cadmium (Cd), copper (Cu), lead (Pb), mercury (Hg), nickel (Ni), selenium (Se), thallium (Tl), U, and zinc (Zn); radiation levels; and histopathologies in biota (vegetation, invertebrates, amphibians, birds, and mammals) at the Canyon Mine. Categories: Data; Types: Citation; Tags: Environmental Health, Grand Canyon, USGS Science Data Catalog (SDC), biological resources, chemistry, All tags... uranium, uranium mining, Fewer tags Carbon Assessment of Hawaii Habitat Status Map (CAH_HabStatus) This layer depicts the status, or degree of disturbance, to plant communities on the main Hawaiian Islands. Several layers were uset to create this version (v 3.4). The original HabQual layer was developed by Jon Price and Jim Jacobi based on the mapped land cover units from the Hawaii GAP analysis program (Gon et al. 2006). This map was revised by combining data on land use and the “Bare” category from the NOAA C-CAP 2005 map (NOAA National Ocean Service Coastal Services Center 2012), and adding road corridors to the heavily disturbed category based on the Tiger Roads layer (United States Census Bureau 2014). Additionally, corrections were made to this version of the map by visually inspecting previously mapped... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, Raster; Tags: Hawaii Island, Hawaiian Islands, Kahoolawe, Kauai, Lanai, All tags... Maui, Molokai, Oahu, alien species, disturbance, mapping, native species, plant communities, remote sensing, satellite imagery, vegetation, Fewer tags Potential contaminant sources and other landscape variables summarized for NHDPlus Version 2.1 catchments within the Chesapeake Bay Watershed (ver. 2.0, June 2021) This dataset consists of 262 variables which describe various known and suspected point and non-point sources of contaminants and endocrine disrupting compounds (EDCs) throughout the Chesapeake Bay Watershed. Contaminant data was summarized to the NHDPlus Version 2.1 catchment level (1:100K). Contaminant data summarized span a time range of 2001 to 2016 and include regulated facilities, pesticides, manure and biosolids application data, mercury deposition, animal feeding applications, septic systems, landfills, and land use and land cover. These data are presented in a comma separated file, which includes all variables summarized and the NHDPlus Version 2.1 FEATUREID field (also known as COMID). The FEATUREID field... Categories: Data, Data Release - Revised; Types: Citation; Tags: Aquatic Biology, Chesapeake Bay, Chesapeake Bay Basin, Delaware, Discharge Monitoring Report (DMR), All tags... District of Columbia, Environmental Health, Facility Registry Service (FRS), Geography, Land Use Change, Maryland, New York, Pennsylvania, Remote Sensing, Toxic Release Inventory (TRI), USGS Science Data Catalog (SDC), Virginia, Water Quality, Water Resources, West Virginia, Wildlife Biology, Wildlife Disease, biosolids application, concentrated animal feeding operations (CAFOs), contamination and pollution, geographic information systems, geography, health and disease, human impacts, industrial pollution, land use and land cover, landfills, manure nitrogen and phosphorus, mercury deposition, natural resources, nonpoint-source pollution, pesticide and herbicide contamination, pharmaceutical contamination, phytoestrogens, septic facilities, water quality, water resources, Fewer tags Soil, geomorphology and pre-European settlement vegetation associations of Southwest Louisiana Defining the pre-European range of vegetation communities can enhance our understanding of the role soil, hydrology, and climate had on climax plant communities within southwest Louisiana. Coastal prairie grasslands were in a perpetual state of succession due to two primary disturbances; grazing, primarily by bison and other ungulates, and fires ignited by lightning and Native Americans. Along its borders, prairie vegetation blended into adjacent plant communities forming biologically diverse ecotones that may have fluctuated between a prairie, marsh, or forest dominated community as a result of variable conditions including climate cycles, disturbance and soil characteristics. Since European settlement, this landscape... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: USGS Science Data Catalog (SDC), grassland ecosystems Underwater acoustic Data From Select Sites on Cumberland Island National Seashore (CUIS), May 2012 - May 2013 This dataset contains average sound intensity (in decibels full scale) for time windows when the water level was at or above the margin toe at four sites - Brickhill Bluff (bb), Dungeness Wharf (dw), Plum Orchard (po), and Racoon Key (rk) - along the back barrier margin of CUIS. Data were recorded with submerged hydrophones connected to a continuously recording data-logger. Additionally, this dataset presents average water level conditions when sound measurements were recorded. Categories: Data; Types: Citation; Tags: Camden County, Cumberland Island National Seashore, Georgia, acoustic, barrier islands, All tags... coastal erosion, cumberland island, erosion pins, hydrophone, peep, Fewer tags Final Bulk Sediment Concentrations of Bifenthrin from Mesocosms Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest United States, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags Seismogenic Landslides, Debris Flows, and Outburst Floods in the Western United States and Canada from 1977 to 2017 Introduction This data release is a compilation of known landslides, debris flows, lahars, and outburst floods that generated seismic signals observable on existing seismic networks. The data release includes basic information about each event such as location, volume, area, and runout distances as well as information about seismic detections and the location of seismic data, photos, maps, GIS files, and links to papers, websites, and media reports about the event. Not all record types exist for each event, and the quality of the information varies from event to event. While the SQLite3 database (lsseis.db) is the native format of this database and preserves its relational structure, for the convenience of users,... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, British Columbia, California, Canada, Colorado, All tags... Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, Greenland, Landslide Hazards Program, Oregon, USGS, USGS Science Data Catalog (SDC), United States, Utah, avalanches, debris avalanches, debris flows, earth science, floods, geophysics, hazards, lahars, landslides, outburst flood, rockfalls, seismology, Fewer tags Chlorophyll-a Data From Mesocosms Exposed to Bifenthrin Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest United States, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags Bifenthrin Concentration, Percent Organic Matter, and Toxic Units, for Stream Sites Collected as Part of the Midwest Stream Quality Assessment Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest United States, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags 1 2 »