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Filters Contacts (Less) Ecosystems U.S. Geological Survey - ScienceBase U.S. Geological Survey Wetland and Aquatic Research Center Forest and Rangeland Ecosystem Science Center Fort Collins Science Center U.S. Geological Survey Upper Midwest Environmental Sciences Center Western Ecological Research Center Columbia Environmental Research Center Southwest Biological Science Center Nicholas M Enwright FRESC Science Data Coordinator Eastern Ecological Science Center Great Lakes Science Center CERC Data Managers Holly J Beck Northern Prairie Wildlife Research Center U.S. Geological Survey, Western Ecological Research Center Pacific Island Ecosystems Research Center National Wildlife Health Center Steve Hanser Jason Dugas Diann J Prosser U.S. Geological Survey - ScienceBase Northern Rocky Mountain Science Center Cooperative Research Units Brady Couvillion Western Fisheries Research Center Stephanie S Romanach John B Bradford Michael J Osland Charles B Yackulic Brian J Halstead Tabitha A Graves Adam J Sepulveda David M Mushet Nathan A Johnson FORT Metadata Specialist Robert S Cornman Nathaniel P Hitt Patrick Kocovsky Kristen M Hart Josh T Ackerman GS ScienceBase James H Larson Ian S Pearse Hongqing Wang Joel B Sankey Catherine S Jarnevich More... View Results as: JSON ATOM CSV

Stream Drift Sampling in Arizona, 2014—Data These data were compiled from field drift collections and from a meta-analysis of published drift literature. Field data were collected in 2014 from the Colorado River downstream of Glen Canyon Dam, Arizona, from the Salt River downstream of Stewart Mountain Dam, Arizona, and from Wet Beaver Creek near the Village of Oak Creek, Arizona. These data represent flow meter measurements taken at the mouth and adjacent to a drift net, and suspended solids concentrations collected by the drift net, over varying net deployment durations. Types: Citation; Tags: Arizona, Colorado River, Drift net, Drift net clogging, Drift net samples, All tags... Drift sampling, Field data, Flow meter measurements, Glen Canyon Dam, Horseshoe Bend, Lees Ferry, Net clogging, Net deployment duration, River ecology, Salt River, Southwestern United STates, Stewart Mountain Dam, Stream ecology, Suspended solids concentrations, USGS Science Data Catalog (SDC), United States, Wet Beaver Creek, Fewer tags Forest management and cervid herbivory data from Western Oregon, USA, 2012 Land management practices often directly alter vegetation structure and composition, but the degree to which ecological processes such as herbivory interact with management to influence biodiversity is less well understood. We hypothesized that intensive forest management and large herbivores have compounding effects on early-seral plant communities and plantation establishment (i.e., tree survival and growth), and the degree of such effects is dependent on the intensity of management practices. We established 225 m2 wild ungulate (deer and elk) exclosures nested within a manipulated gradient of management intensity (no-spray Control, Light herbicide, Moderate herbicide and Intensive herbicide treatments), replicated... Categories: Data; Types: Citation; Tags: Ecology, Lincoln County, Oregon, Oregon, Oregon Coast Range, Pacific Northwest, All tags... Polk County, Oregon, Tillamook County, Oregon, USGS Science Data Catalog (SDC), Wildlife, Yamhill County, Oregon, biodiversity, community, deer, early-seral, elk, forage, forestry, herbicides, herbivory, management, plantation, silviculture, trophic, Fewer tags Flow management, aquatic insects and river food webs - Data Two unique datasets were gathered to document whether flow management for hydropower affects the abundance and diversity of aquatic insect assemblages. The first dataset was collected in Grand Canyon from 2012-2014 by citizen scientists rafting the Colorado River. Simple light traps were set out each night in camp and used to capture the adult life stages of aquatic insects that emerged from the Colorado River. Three aquatic insect taxa were captured in sufficient abundance to analyze statistically including midges (order Diptera, family Chironomidae), micro-caddisflies (order Trichoptera, family Hydroptilidae), and blackflies (order Diptera, family Simuliidae, principally Simulium arcticum). These data were used... Types: Citation; Tags: Adult aquatic insects, Arizona, Biodiversity, Biological traits, California, All tags... Causey Dam, Citizen science, Colorado, Colorado Plateau, Colorado River, Crystal Dam, Dam, Deer Creek Dam, EPT, EPT taxa, Echo Dam, Ephemeroptera, Flaming Gorge Dam, Flood elevation, Fontenelle Dam, Glen Canyon Dam, Grand Canyon, Green River, Gunnison River, High water line, Holter Dam, Hoover Dam, Idaho, Kootenai River, Libby Dam, Light trapping data, Light traps, Lower Provo River, Missouri River, Montana, Navajo Dam, Nevada, New Mexico, Ogden River, Oregon, Owyhee Dam, Owyhee River, Pine Flat Dam, Plecoptera, River, River ecology, San Juan River, Starvation Dam, Strawberry River, Tongue Dam, Tongue River, Trichoptera, USGS Science Data Catalog (SDC), United States, Utah, Wanship Dam, Weber River, Western United States, Wyoming, Fewer tags Surface water data for isolated stock ponds in southern Arizona, USA and northern Sonora, Mexico These data were compiled to compare the ability of matched filtering (MF) and linear spectral mixture analysis (LSMA) to map isolated wetland sites using Landsat 5 Thematic Mapper (TM) and Landsat 8 Operational Land Imager (OLI) data. We analyzed 81 stock ponds corresponding to a 2007 Landsat 5 image and 73 sites corresponding to a 2014 Landsat 8 image in southern Arizona and northern Sonora, Mexico, with ponds ranging from completely dry to ~17,000 m2 surface water. Both Landsat images we used were Tier 1 Level-1 terrain corrected scenes acquired from Earth Explorer (https://earthexplorer.usgs.gov), which were provided as individual bands represented by digital numbers (DNs). The inundation extent of stock ponds... Tags: Aquatic Biology, Arizona, Ecology, Geography, Information Sciences, All tags... Landsat 5 Thematic Mapper (TM), Landsat 8 Operational Land Imager (OLI), Mexico, Remote Sensing, San Rafael Valley, Santa Cruz County, Sonora, USGS Science Data Catalog (SDC), United States, Wildlife Biology, biota, ecology, image collections, imageryBaseMapsEarthCover, linear spectral mixture analysis, matched filtering, multispectral imaging, northern Mexico, riparian ecosystems, southern Arizona, stock ponds, surface water, wetland ecosystems, Fewer tags Traits and Factors Catalog (TRAFAC): Conifer specialists of North America These data were compiled in support of the 'Predicting the next high-impact insect invasion: Elucidating traits and factors determining the risk of introduced herbivorous insects on North American native plants' project, supported by the U.S. Geological Survey John Wesley Powell Center for Analysis and Synthesis. The project working group compiled data for non-native insects herbivorous on three or fewer North American conifer families. Data were synthesized from existing resources for a variety of insect traits, traits of their North American conifer host trees, divergence time between the North American host trees and the host tree in the insects' native range, and native insects that feed on the same North American... Tags: British Columbia, California, Canada, Connecticut, District of Columbia, All tags... Maine, Massachusetts, Mississippi, Nebraska, New Brunswick, New Jersey, North America, North American conifers, North Carolina, Ontario, Pennsylvania, Rhode Island, USGS Science Data Catalog (SDC), United States, Virginia, Washington, biogeography, biota, co-evolved, conifer pests, coniferous forests, conifers, ecology, environmental impact, forest ecosystems, host range, host trees, impact, insect ecology, insect traits, insects, insects, invasive herbivorous insects, native insects, native range, native species, non-native insects, pests, traits, trees, vegetation, Fewer tags Desert Tortoise Ecology and Precipitation, Mojave and Sonoran Deserts—Data Estimated precipitation data were compiled using the WestMap web site (http://www.cefa.dri.edu/Westmap/) from 1995-2013. We selected pixels on the map shown on their web site that were in the core of our study areas: one near Palm Springs, California and the other at Sugarloaf Mountain in the Tonto National Forest of Arizona. WestMap uses PRISM data to make point measurements of climate data and a digital elevation model of terrain to create estimates of monthly climate elements. Estimates are derived for a 4km grid, for ease in mapping and GIS applications. PRISM is an integrated set of rules, decision making, and calculations designed to imitate the process an expert climatologist would go through when mapping... Types: Citation; Tags: Arizona, California, Carapace length, Clutch size, Desert tortoise eggs, All tags... Egg width, Mojave Desert, PRISM data, Palm Springs, San Gorgonio Pass, Seasonal precipitation, Sonoran Desert, Sugarloaf Mountain, Summer precipitation, Tonto National Forest, USGS Science Data Catalog (SDC), WestMap Climate Analysis & Mapping Toolbox, Winter precipitation, X-ray pelvic aperture width, Fewer tags Mortality trends in northern sea otters (Enhydra lutris kenyoni) collected from the coast of Washington and Oregon during 2002—2015: Data During 2002−2015 we examined the causes of mortality in beachcast northern sea otters (Enhydra lutris kenyoni) collected from the coasts of Washington and Oregon states. A total of 333 moribund or dead sea otters were reported through opportunistic observations and 93 otter carcasses were collected for necropsy. Retrieved carcasses received a full diagnostic evaluation to determine cause of death when carcass condition permitted. Otter stranding reports were received from the entire Washington coast and northern Oregon coast, but carcasses located near areas populated by humans were most often in suitable condition for cause of death determination. Data in this release include basic demographic information on the... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Clallam County, Washington, USA, Clatsop County, Oregon, USA, Enhydra lutris, Grays Harbor County, Washington, USA, Jefferson County, Washington, USA, All tags... Lincoln County, Oregon, USA, Oregon, USA, Pacific County, Washington, USA, Sarcocystis neurona, Tillamook County, Oregon, USA, USGS Science Data Catalog (SDC), Washington, USA, leptospirosis, morbillivirus, mortality, population trends, salvage of beachcast carcasses, sea otter, Fewer tags Effects of pulse duration on common hydroacoustic measures in Lake Erie in 2011-2012 and Ohio Reservoirs in 2017 Hydroacoustics is a common sampling tool in freshwater and marine ecosystems, yet the full potential of this tool remains restricted, owing to an incomplete understanding of the influence of many data collection settings. In particular, investigation into the effects of the pulse duration setting on common hydroacoustic measures remains limited. Hydroacoustic theory suggests that pulse duration can affect how many single targets (e.g., individual fish or invertebrates) are detected, the mean target strength (TS) of sample cells, and estimates of target density, especially in ecosystems with an abundance of potential targets. To quantify the influence of the pulse duration setting on these important and commonly... Categories: Data; Tags: Acton Lake, Alum Creek Lake, Aquatic Biology, Ecology, Great Lakes, All tags... Hoover Reservoir, Lake Erie, Limnology, Ohio, Remote Sensing, Techniques and Methods, USGS Science Data Catalog (SDC), Water Resources, acoustic methods, biota, environment, field methods, fisheries biology, fisheries management, hydroacoustics, inlandWaters, management methods, sonar methods, Fewer tags Early Establishment Patterns of 'Local' Wyoming Big Sagebrush Population in Common Gardens Along Elevational Gradient in Owyhee Mountains, Idaho This dataset contains information on the survival of sagebrush seedlings originating from seed collected from 3 'local' populations over 2+ years. Datasets presented consist of individual seedling survival, growth and reproduction data as well as population level results as they relate to the differences in modeled and calculated climate variables and the differences between the climatic conditions of the seed source sites and the common garden sites. Categories: Data; Tags: Adaptive Variability, Big sagebrush, Botany, Common Gardens, Ecology, All tags... Great Basin, Idaho, Land Use Change, Native Plant Establishment, Seed Zone, USGS Science Data Catalog (SDC), biota, plants (organisms), remediation, Fewer tags Model archive—Regional regression models for estimating flood-frequency characteristics of rural, unregulated Ohio streams Dataset is a model archive containing all relevant files to create regression models that are discussed in the report: Koltun, G.F., 2019, Flood-frequency estimates for Ohio streamgages based on data through water year 2015 and techniques for estimating flood-frequency characteristics of rural, unregulated Ohio streams: U.S. Geological Survey Scientific Investigations Report 2019-5018. WREG R source code, regression results and associated output files are also included in the archive. Tags: Indiana, Kentucky, Michigan, Ohio, Ohio, All tags... Pennsylvania, USGS Science Data Catalog (SDC), West Virginia, expected moments algorithm, flood frequency, regional regression, Fewer tags Invasive Plant Cover in the Mojave Desert, 2009 - 2013 (ver. 2.0, April 2021) We assessed the impacts of co-occurring invasive plant species on fire regimes and postfire native communities in the Mojave Desert, western USA by analyzing the distribution and co-occurrence patterns of three invasive annual grasses known to alter fuel conditions and community structure: Red Brome (Bromus rubens), Cheatgrass (Bromus tectorum), and Mediterranean grass (Schismus spp.: Schismus arabicus and Schismus barbatus), and an invasive forb, red stemmed filaree (Erodium cicutarium) which can dominate postfire sites. We developed species distribution models (SDMs) for each of the four taxa and analyzed field plot data to assess the relationship between invasives and fire frequency, years postfire, and the impacts... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Mojave desert, USGS Science Data Catalog (SDC), biota, co-occurance invasives, desert ecosystems, All tags... ecosystems, field methods, fire disturbance, fire frequency, fires, geographic information systems, habitat alteration, invasive species, plants (organisms), remote sensing, vegetation, Fewer tags Database of Marine Mammal and Seabird Research Activity in the Pacific (US) This database is a compilation of marine mammal and seabird information collected along the Pacific coast of the United States and U.S. territories in the Pacific from surveys that were solicited among regional research communities and persons. Information from standardized surveys was gathered from 2015 to 2018 and includes programs and researchers who collected information regarding seabirds since 1960. These data support the following publication: Adams, J., Lafferty, K.D., Kelsey, E.C., and Johnston, C.A. 2019. Synopsis of Research Programs that can Provide Baseline and Monitoring Information for Offshore Energy Activities in the Pacific Region: Seabird and Marine Mammal Surveys in the Pacific Region. U.S.... Categories: Data; Tags: Alaska, California, Ecology, Hawaii, Oregon, All tags... Pacific Islands, Research, USGS Science Data Catalog (SDC), Washington, Wildlife Biology, biodiversity, biological informatics, biota, birds, costal zones, field methods, geographical information systems (GIS), inlandWaters, laboratory methods, location, mammals, marine ecosystem, marine mammals, oceans, seabirds, Fewer tags Lake Michigan Fish Acoustic Data from 2011 to 2016 Each line in the file “Lake Michigan fish acoustic data from 2011 to 2016.csv” represents the acoustic data and estimated fish density for a single depth layer of water. Surveys are conducted along transects, transects are divided horizontally into successive intervals, and then within an interval there are multiple successive depth layers. Area backscattering (ABC), mean acoustic size (sigma), and fish density are reported for each unique transect-interval – layer from Lake Michigan in the years 2011-2016. Area backscattering (PRC_ABC), mean acoustic size (sigma), and fish density in the intervals and layers of acoustic survey transects of Lake Michigan in the years 2011-2016. The survey is carried out using a... Categories: Data; Types: Citation; Tags: Fish, Fishery Resources, Lake Michigan, USGS Science Data Catalog (SDC), environment, All tags... hydroacoustic, inlandWaters, Fewer tags Data and Regression Model for Suspended Sediment for Iroquois River near Foresman, Indiana, March 20, 2015 to July 19, 2018 The primary data set consists of continuous water-quality data (temperature, specific conductance, pH, dissolved oxygen, turbidity, nitrate plus nitrite, and streamflow) from in-situ equipment, and discrete water-quality samples (total nitrogen, total phosphorus, suspended sediment concentration, and suspended sediment sieve diameter) collected during site visits at the USGS streamgage Iroquois River near Foresman, Indiana, April 7, 2015 to July 19, 2018. These continuous and discrete measurements were used to develop a regression model which may be used to compute concentrations and loads of suspended sediment. The secondary data set consists of daily streamflow and daily turbidity values collected continuously... Categories: Data; Tags: Indiana, Midwest, USGS Science Data Catalog (SDC), Water Quality, environment, All tags... nutrient content, nutrient pollution, sediment transport, statistical modeling, surface water quality, water quality, Fewer tags Erosion and Rehabilitation Data, Bandelier National Monument, New Mexico, USA These data were compiled for a restoration experiment testing the regenerative and functional response of biocrust inoculum reintroduced to a field setting. Regenerative traits measured included measurements of biocrust cover, chlorophyll content, and the roughness of the soil surface. Functional traits measured included nutrient cycling and soil stability. Additionally, these data were compiled for an experiment testing how much soil is lost from different types of ground cover. The data collected was related to ground cover and the amount of soil lost from plots through time. These data were used to inform the conclusions drawn in the accompanying manuscript. Tags: Bandelier National Monument, Ecology, Geography, Geomorphology, Information Sciences, All tags... Los Alamos, Los Alamos County, New Mexico, Sandoval County, Soil Sciences, Southwestern United States, USGS Science Data Catalog (SDC), United States, biological soil crust, biota, drylands, ecosystem function, environment, erosion, nutrient cycling, pinyon juniper, rehabilitation, restoration, semi arid, soil stability, woodland, Fewer tags Raster data files for “Prioritizing conserved areas threatened by wildfire for monitoring and management." The data set consists of 12 input data rasters that cover San Diego County, California. These input rasters represent criteria used in a Pareto ranking algorithm in the manuscript. These include three rasters related to fire threats, three rasters related to habitat fragmentation threats, four rasters related to species biodiversity, and two rasters related to genetic biodiversity. (see the PLOS ONE paper for details). These data support the following publication: Tracey JA, Rochester CJ, Hathaway SA, Preston KL, Syphard AD, Vandergast AG, et al. (2018) Prioritizing conserved areas threatened by wildfire and fragmentation for monitoring and management. PLoS ONE 13(9): e0200203. https://doi.org/10.1371/journal.pone.0200203 Tags: Botany, Genetics, MCDA, Mediterranean-type Ecosystems, Multi-criteria decision analysis, All tags... Pareto ranking, San Diego, USGS Science Data Catalog (SDC), Wildlife Biology, biota, ecosystems, environment, fires, genetics, habitat alteration, species diversity, wildfires, Fewer tags Amphibian capture mark-recapture These data represent capture mark recapture data along with associated disease status for boreal toads (Anaxyrus boreas) from Wyoming and Montana from 2004-2016 and four frog species (Rana draytonii, R. muscosa, R. pretiosa, R. sierrae) from 2001-2016. Categories: Data; Tags: Anaxyrus, Batrachochytrium dendrobatidis, California, Montana, Oregon, All tags... Rana, USGS Science Data Catalog (SDC), Wildlife Disease, Wyoming, amphibians, anuran, chytridiomycosis, mark-recapture studies, survival, wildlife diseases, Fewer tags Long-term precipitation reduction experiment in the Colorado Plateau - Survival and mortality data from 2010 to 2018 From 2011-2018 USGS biologists recorded vegetation and biological soil crust (BSC) cover by species and tracked survival of tagged individual plants (388 in total) across 40 locations where paired experimental plots had been installed in 2010. Plant cover was visually estimated using four 75 x 100 cm survey frames. Each site contained a two plots measuring 1.5 by 2.0 meteres: a control plot and a plot covered by a shelter that excluded 35% of incoming precipitation. Plots were selected to represent shallow vs. deep soils, sandstone vs. shale parent material, and dominant plant species on the Colorado Plateau around Moab, Utah. We used an information theoretic approach using generalized linear models to determine... Tags: Botany, Canyonlands, Colorado Plateau, Ecology, Geography, All tags... Grand County, Indian Creek, Information Sciences, Moab, Salsola, San Juan County, Soil Sciences, USGS Science Data Catalog (SDC), Utah, biogeography, biological soil crust, biota, bromus, cheatgrass, climate change, control plot, deep soils, experimental plot data, geology, graminoids, grass, grassland ecosystem, parent material, perennial, plant populations, plant species, plot sampling, sandstone, shale, shallow soils, shelter plots, shrubland ecosystem, shrubs, shrubs, soil sciences, species cover, vegetation, Fewer tags Total thiamine concentrations in lake trout Salvelinus namaycush eggs in lakes Huron and Michigan, 1996-2018 Monitoring of vitamin B1 (thiamine) in the eggs of lake trout (Salvelinus namaycush) collected from lakes Huron and Michigan has been conducted by the U.S. Geological Survey since the mid-1990’s. The results of this monitoring effort have been used by natural resource management agencies and native American tribes within the Great Lakes basin to evaluate the reproductive health of lake trout. The data in this release are the thiamine concentrations measured in lake trout collected from 1996-2018. Results are reported as total thiamine (nmol/g-egg), collection site, lake, year collected, and reference to the analysis methods. Categories: Data; Tags: Canada, EMS, Early Mortality Syndrome, Fish, Fish Spawning and Larval Aggregation, All tags... Great Lakes, Illinois, Indiana, Lake Huron, Lake Michigan, Laurentian Great Lakes, Michigan, Ontario, Salvelinus namaycush, TDC, Thiamine Deficiency Complex, USGS Science Data Catalog (SDC), United States, Vitamin B1, Wildlife Biology, Wisconsin, alewife, aquatic biology, aquatic ecosystems, biota, commercial fishery resources, ecosystem monitoring, environmental assessment, fish, fisheries biology, fishery management, freshwater ecosystems, hazards, health and disease, inland fishery resources, lake trout, long-term ecological monitoring, population and community ecology, recreational fishery resources, risk assessment, thiamine, thiamine deficiency, vitamin deficiency, wildlife disease, 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 « 1 ... 37 38 39 40 41 ... »