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Estimation of temporary emigration in male toads Male boreal toads (Bufo boreas) are thought to return to the breeding site every year but, if absent in a particular year, will be more likely to return the following year. Using Pollock's robust design we estimated temporary emigration (the probability a male toad is absent from a breeding site in a given year) at three locations in Colorado, USA: two in Rocky Mountain National Park and one in Chaffee County. We present data that suggest that not all male toads return to the breeding site every year. Our analyses indicate that temporary emigration varies by site and time (for example, from 1992 to 1998, the probability of temporary emigration ranged from 10% to 29% and from 3% to 95% at Lost Lake and Kettle Tarn,... Categories: Publication; Types: Citation, Journal Citation; Tags: Bufo boreas, Colorado, Ecology, USA, amphibians, All tags... boreal toad, capture–recapture, robust design, temporary emigration, Fewer tags Leviathan, the open society, and the crisis of ecology In an earlier article the author has argued that the turbulent history of nuclear power in Britain and the USA stems from the technology itself, and has little to do with the very different institutional arrangements made for the new technology in the two countries. Nuclear plant has various features which make its planning extraordinarily difficult. Its long lead time, large unit size, capital intensity and dependence on complex infrastructure combine to ensure that mistakes are likely to be made in planning the technology and that what mistakes do occur are expensive. This article aims to expand on the earlier one in two ways; by looking at the apparent success of the French nuclear programme which seems to run... Categories: Publication; Types: Citation; Tags: crisis, ecology, environment, society Moisture Relationships in Twelve Northern Desert Shrub Communities Near Grand Junction, Colorado Twelve northern desert shrub communities having the same macroclimate but differing habitats were studies. Arranged in order of decreasing production of live stems plus current growth, the communities were: (1) Sarcobatus vermiculatus (9,172 kg/ha), (2) Grayia spinosa (7,412 kg/ha), (3) Artemisia tridentata (5,474 kg/ha), (4) Chrysothamnus nauseosus (4,836 kg/ha), (5) Atriplex confertifolia (3,194 kg/ha), (6) Eurotia lanata (2,026 kg/ha), (7) Hilaria jamesii-Atriplex confertifolia (1,995 kg/ha), (8) Atriplex corrugata (1,949 kg/ha), (9) Chrysothamnus greenii filifolius (1,866 kg/ha), (10) Atriplex nuttallii (1,309 kg/ha), (11) Elymus salinus (865 kg/ha), and (12) Tetradymia spinosa (564 kg/ha). The communities were... Categories: Publication; Types: Citation, Journal Citation; Tags: Colorado, Ecology, evotranspiration, internal-plant stress, leaf persistence, All tags... phenology, soil salinity, soil-moisture stress, Fewer tags Links between microbial population dynamics and nitrogen availability in an alpine ecosystem Past studies of plant?microbe interactions in the alpine nitrogen cycle have revealed a seasonal separation of N use, with plants absorbing N primarily during the summer months and microbes immobilizing N primarily during the autumn months. On the basis of these studies, it has been concluded that competition for N between plants and microbes is minimized along this seasonal gradient. In this study, we examined more deeply the links between microbial population dynamics and plant N availability in an alpine dry meadow. We conducted a year-round ?eld study and per formed experiments on isolated soil microorganisms. Based on previous work in this ecosystem, we hypothesized that microbial biomass would decline before... Categories: Publication; Types: Citation, Journal Citation; Tags: Ecology, Kobresia myosuroides, N uptake, alpine tundra, microbial population dynamics, All tags... nitrogen availability, organic nitrogen, seasonal, soil microorganisms, soil protease activity, substrate-induced growth response, temporal partitioning, Fewer tags Invisible Floral Larcenies: Microbial Communities Degrade Floral Nectar of Bumble Bee-Pollinated Plants The ecology of nectarivorous microbial communities remains virtually unknown, which precludes elucidating whether these organisms play some role in plant?pollinator mutualisms beyond minor commensalism. We simultaneously assessed microbial abundance and nectar composition at the individual nectary level in flowers of three southern Spanish bumble bee-pollinated plants (Helleborus foetidus, Aquilegia vulgaris, and Aquilegia pyrenaica cazorlensis). Yeasts were frequent and abundant in nectar of all species, and variation in yeast density was correlated with drastic changes in nectar sugar concentration and composition. Yeast communities built up in nectar from early to late floral stages, at which time all nectaries... Categories: Publication; Types: Citation, Journal Citation; Tags: Aquilegia pyrenaica cazorlensis, Aquilegia vulgaris, Ecological Society of America, Ecology, Helleborus foetidus, All tags... bumble bee pollination, floral microbiology, mutualism exploitation, nectar concentration, nectar sugar composition, yeast communities, Fewer tags Exotic and perennial grass cover for pastures in the Soda Fire (2016) The point data file ("Soda Fire Point and Pasture Data (2016).Point Data.csv") includes 2016 vegetative cover values of exotic annual grass and perennial grass measured within three different types of plots for 75 pastures in the Soda Fire, which burned in 2015: 6m² plot using a grid-point intercept photo software, SamplePoint (Booth et al. 2006), 1m² quadrat using an unguided rapid ocular estimate in the field, 531m² circular plot using an unguided rapid ocular estimate in the field. Smaller plots were nested within larger plots. The pasture data file ("Soda Fire Point and Pasture Data (2016).Pasture Data.csv") includes pasture level metrics of area, elevation, precipitation, slope, heatload, soils, and herbicide... Categories: Data; Types: Citation; Tags: Botany, Ecology, Idaho, Idaho BLM, Land Use Change, All tags... Malheur County, Oregon, Owyhee County, Soda Wildfire, USGS Science Data Catalog (SDC), biota, exotic annual grass, fires, grid point intercept, perennial grass, sample size, vegetation, vegetation cover, Fewer tags Role of multidecadal climate variability in a range extension of pinyon pine. Evidence from woodrat middens and tree rings at Dutch John Mountain (DJM) in northeastern Utah reveal spatiotemporal patterns of pinyon pine (Pinus edulis Engelm.) colonization and expansion in the past millennium. The DJM population, a northern outpost of pinyon, was established by long-distance dispersal (approximately 40 km). Growth of this isolate was markedly episodic and tracked multidecadal variability in precipitation. Initial colonization occurred by AD 1246, but expansion was forestalled by catastrophic drought (1250-1288), which we speculate produced extensive mortality of Utah Juniper (Juniperus osteosperma (Torr.) Little), the dominant tree at DJM for the previous approximately 8700 years. Pinyon then... Categories: Publication; Types: Citation, Journal Citation; Tags: Eco Soc America, Ecology, drought, founder event, paleoecology, All tags... pinyon-juniper woodlands, tree rings, vegetation change, woodrat middens, Fewer tags Contribution of Shrubs to the Nitrogen Economy of a Desert-Wash Plant Community Total nitrogen incorporated in the shrubs of a low-fertility desert plant community (principally Acacia Gregii, Cassia armata, and Larrea divaricata) was estimated from the nitrogen content of plant parts, the total weight of plants and proportional weight of roots, stems, and leaves, and the number of plants per unit area. The average nitrogen content of shrub leaves, stems, and roots was 1.31%, .87%, and .80%, respectively. Shrub cover occupied 20% of the ground surface and contained an average of 29 kg nitrogen/ha. Legume shrubs were not significantly greater in nitrogen content than nonlegume shrubs. Soil nitrogen content decreased significantly as a function of radial distance from the center of the shrub canopy.... Categories: Publication; Types: Citation, Journal Citation; Tags: Ecological Society of America, Ecology USGS Land Cover - Woodland for Mississippi 20160519 State or Territory Shapefile Geospatial data that is a derivative land cover product depicting woodland on topographic maps. Types: Citation; Tags: Agricultural land, Barren land, Downloadable Data, Forest land, Land Cover, All tags... Land Cover - Woodland, MS, Mississippi, Not Classified, Orthoimage, Range land, Shapefile, State, US, US, United States, Urban and built-up land, Water, Wetland, Woodland, annotations, biota, ecology, environment, farming, flora, habitat, imagery, imageryBaseMapsEarthCover, land cover, Fewer tags Baseline data for a hydrological restoration of a mangrove forest near Goodland, Florida (2015 - 2017) Mangrove restoration has a strong potential to enhance the services provided by coastal wetlands on a number of Department of the Interior (DOI) managed lands throughout the southeastern United States of America. Services include storm protection, water quality improvement, and biological carbon sequestration. Forest structural attributes including basal area, tree height, and stem density by species are used to calculate above ground biomass and above ground productivity. Percent cover is used to asses the forest canopy health. The data collected for the soils are: bulk density, percent total Nitrogen, percent total Carbon, and selected samples percent total Phosporus. The forest structure plots were placed in... Categories: Data; Types: Citation; Tags: Avicennia germinans, Carbon, Collier County, Conocarpus erectus, Ecology, All tags... Environmental Health, Florida, Goodland, Laguncularia racemosa, Nitrogen, Phosphorus, Rhizophora mangle, USA, USGS Science Data Catalog (SDC), bulk density, diameter at breast height (dbh), mangrove, percent cover, soils, spherical densiometer, tree height, Fewer tags EnviroAtlas - Clean and Plentiful Water Metrics for the Conterminous United States This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). The Clean and Plentiful Water category in this web service includes layers illustrating the ecosystems and natural resources that filter and regulate water, the need or demand for clean and plentiful water, the impacts associated with water quality, and factors that place stress on water quality and supply. EnviroAtlas allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the conterminous United States. Additional descriptive information about each attribute in this web service is located within each web... Types: Citation; Tags: 12-digit HUCs, Agriculture, Air, Alabama, Alaska, All tags... Arizona, Arkansas, Austin, TX, Biodiversity, Biology, Biophysical, Biota, Boundaries, California, Census Block Groups, Cleanup, Climate, Colorado, Communities, Compliance, Connecticut, Conservation, Contaminant, Delaware, Demand for Ecosystem Services, Demographics, Detroit, MI, Disaster, Drinking Water, Drivers of Change - Ecosystem Services, Durham, NC, Ecology, Economy, Ecosystem, Ecosystem, Ecosystem Services, Elevation, Emergency, Endangered, Energy, EnviroAtlas, Environment, Environment, Environmental Atlas, Environmental Justice, Estuary, Exposure, Facilities, Florida, Food, Fresno, CA, Georgia, Green Infrastructure, Green Space, Ground Water, Habitat, Hawaii, Hazards, Health, Human, Human Well-being, Idaho, Illinois, Impact, Imperiled, Indiana, Indicator, Indoor Air, Inspections, Iowa, Kansas, Kentucky, Land, Land Cover, Louisiana, Maine, Management, Marine, Maryland, Massachusetts, Michigan, Milwaukee, WI, Minnesota, Mississippi, Missouri, Modeling, Monitoring, Montana, Natural Resources, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Permits, Pesticides, Phoenix, AZ, Portland, ME, Portland, OR, Potential for Change - Ecosystem Services, Protected Lands, Quality, Radiation, Recreation, Regulatory, Remediation, Response, Rhode Island, Riparian, Risk, Sites, Society, Soils, South Carolina, South Dakota, Spills, Structure, Supply of Ecosystem Services, Surface Water, Sustainability, Tampa Bay, FL, Tennessee, Texas, Threatened, Toxics, Transportation, United States, Utah, Utilities, Vermont, Virginia, Washington, Washington DC, Waste, Water, West Virginia, Wetlands, Wisconsin, Wyoming, environment, Fewer tags Rainwater Basin Wetland Complex Vegetation Map 2004 The Rainwater Basin (RWB) wetland complex in south-central Nebraska provides crucial stopover habitat for over 7 million waterfowl and 500,000 shorebirds every spring. However, only 10% of the original RWB wetlands remain, resulting in less available habitat for wetland-dependent birds. Conservation efforts are being employed to alleviate the loss of RWB wetlands. To aid conservation efforts, we created a vegetation map of all historical RWB wetlands based on 2004 imagery. The shapefile maps the 2004 vegetation communities for all historic wetlands in the Rainwater Basin region of Nebraska, USA. Vegetation communities include cropped areas that rarely pond water, cropped areas that often pond water, bare soil... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Biology, Ecology Grassland priority rankings model 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 National Aerial Imagery Program (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 LandUse/LandCover (LULC) categories. This process involved stitching together more reliable sources for specific categories to... Types: Citation; Tags: Ecology, Landcover, Landuse, USGS Science Data Catalog (SDC), coastal Louisiana, All tags... environment, environment, imageryBaseMapsEarthCover, imageryBaseMapsEarthCover, Fewer tags Experimental observations on the decay of environmental DNA from bighead and silver carp-Data Interest in the field of environmental DNA (eDNA) is growing rapidly and eDNA surveys are becoming an important consideration for aquatic resource managers dealing with invasive species. However, in order for eDNA monitoring to mature as a research and management tool, there are several critical knowledge gaps that must be filled. One such gap is the fate of eDNA materials in the aquatic environment. Understanding the environmental factors that influence the decay of eDNA and how these factors impact detection probabilities over time and space could have significant implications for eDNA survey design and data interpretation. Here we experimentally explore eDNA decay in waste materials and reproductive cells obtained... Categories: Data; Types: Citation; Tags: Aquatic Biology, Ecology, Environmental Health, Genetics, Missouri, All tags... USGS Science Data Catalog (SDC), eDNA, environmental factors, microbial load, pH, water temperature, Fewer tags Data compilation of soil respiration, moisture, and temperature measurements from global warming experiments from 1994-2014 This dataset is the largest global dataset to date of soil respiration, moisture, and temperature measurements, totaling >3800 observations representing 27 temperature manipulation studies, spanning nine biomes and nearly two decades of warming experiments. Data for this study were obtained from a combination of unpublished data and published literature values. We find that although warming increases soil respiration rates, there is limited evidence for a shifting respiration response with experimental warming. We also note a universal decline in the temperature sensitivity of respiration at soil temperatures >25°C. This dataset includes 3817 observations, from control (n=1812), first (i.e., lowest or sole) level... Categories: Data, Publication; Types: Citation; Tags: Boreal Forest, Desert, Ecology, Meadow, Northern Shrubland, All tags... Southern Shrubland, Temperate Agriculture, Temperate Forest, Temperate Grassland, Wet Sedge Tundra, climate change, experimental warming, instantaneous data, soil moisture, soil respiration, soil sciences, soil temperature, Fewer tags EnviroAtlas - Food, Fuel, and Materials Metrics for Conterminous United States This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). The Food, Fuel, and Materials category in this web service includes layers illustrating the ecosystems and natural resources that provide or support the production of food, fuel, or other materials, the need or demand for these items, the impacts associated with their presence and accessibility, and factors that place stress on the natural environment's capability to provide these benefits. EnviroAtlas allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the conterminous United States. Additional descriptive... Types: Citation; Tags: 12-digit HUCs, Agriculture, Air, Alabama, Alaska, All tags... Arizona, Arkansas, Austin, TX, Biodiversity, Biology, Biophysical, Biota, Boundaries, California, Census Block Groups, Cleanup, Climate, Colorado, Communities, Compliance, Connecticut, Conservation, Contaminant, Delaware, Demand for Ecosystem Services, Demographics, Detroit, MI, Disaster, Drinking Water, Drivers of Change - Ecosystem Services, Durham, NC, Ecology, Economy, Ecosystem, Ecosystem, Ecosystem Services, Elevation, Emergency, Endangered, Energy, EnviroAtlas, Environment, Environment, Environmental Atlas, Environmental Justice, Estuary, Exposure, Facilities, Florida, Food, Fresno, CA, Georgia, Green Infrastructure, Green Space, Ground Water, Habitat, Hawaii, Hazards, Health, Human, Human Well-being, Idaho, Illinois, Impact, Imperiled, Indiana, Indicator, Indoor Air, Inspections, Iowa, Kansas, Kentucky, Land, Land Cover, Louisiana, Maine, Management, Marine, Maryland, Massachusetts, Michigan, Milwaukee, WI, Minnesota, Mississippi, Missouri, Modeling, Monitoring, Montana, Natural Resources, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Permits, Pesticides, Phoenix, AZ, Portland, ME, Portland, OR, Potential for Change - Ecosystem Services, Protected Lands, Quality, Radiation, Recreation, Regulatory, Remediation, Response, Rhode Island, Riparian, Risk, Sites, Society, Soils, South Carolina, South Dakota, Spills, Structure, Supply of Ecosystem Services, Surface Water, Sustainability, Tampa Bay, FL, Tennessee, Texas, Threatened, Toxics, Transportation, United States, Utah, Utilities, Vermont, Virginia, Washington, Washington DC, Waste, Water, West Virginia, Wetlands, Wisconsin, Wyoming, environment, Fewer tags Discovery of Two Biological Mechanisms for Acetylene Metabolism in a Single Organism Acetylene fermentation assays, nitrogen fixation assays, and growth studies were performed with Pelobacter sp. strain SFB93 and Pelobacter acetylenicus DSM3246. Data includes concentrations of acetylene and ethylene over time, and growth measured with OD680 and cell counts. Categories: Data; Types: Citation; Tags: Ecology, Environmental Health, Genetics, Geochemistry, NA, All tags... USGS Science Data Catalog (SDC), Water Quality, Water Resources, acetylene, bacteria, nitrogen, Fewer tags Evaluating Coho Salmon in Streams Across an Urbanization Gradient—Part 1, Growth Potential Based on Environmental Factors and Bioenergetics Physical and chemical changes affect the biota within urban streams at varying scales ranging from individual organisms to populations and communities creating complex interactions that present challenges for characterizing and monitoring the impact on species utilizing these freshwater habitats. Salmonids, specifically cutthroat trout (Oncorhynchus clarkii) and coho salmon (Oncorhynchus kisutch), extensively utilize small stream habitats influenced by a changing urban landscape. This study used a comprehensive fish health assessment concurrent with the U.S. Geological Survey’s Pacific Northwest Stream Quality Assessment in 2015 to quantifiy impacts from disease in juvenile coho and cutthroat salmon, impacts to... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Bioenergtics, Church Creek, Coulter Creek, East Fork Dairy Cree, All tags... Ecology, Environmental Health, Growth, Harris Creek, Issaquah Creek, Jenkins Creek, Longfellow Creek, May Creek, Otolith, Salmon, Swamp, Temperature, USGS Science Data Catalog (SDC), Urbanization, Water Quality, Woodland Creek, Fewer tags Marine Arctic point distribution of Fourhorn Poacher (Hypsagonus quadricornis) (Valenciennes, 1829) Region(s) of distribution of Fourhorn Poacher (Hypsagonus quadricornis) (Valenciennes, 1829) in the Arctic as digitized for U.S. Geological Survey Scientific Investigations Report 2016-5038. For details on the project and purpose, see the report at https://doi.org/10.3133/sir20165038. Complete metadata for the collection of species datasets is in the metadata document "Dataset_for_Alaska_Marine_Fish_Ecology_Catalog.xml" at https://doi.org/10.5066/F7M61HD7. Source(s) for this digitized data layer are listed in the metadata Process Steps section. Note that the original source may show an extended area; some datasets were limited to the published map boundary. Distributions of marine fishes are shown in adjacent Arctic... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: (Valenciennes, 1829), Alaska, Arctic, Arctic, Beaufort Sea, All tags... Bering Sea, Bering Strait, Chukchi Sea, Chukchi-Beaufort Lease Area, Distributions, Fourhorn Poacher, Hypsagonus quadricornis, Northwest Territories, Nunavut, U.S. Exclusive Economic Zone, Yukon, biogeography, ecology, fish, marine, marine fishery resources, northeast Russia, northwest Canada, Fewer tags Marine Arctic polygon distribution of Inconnu (Stenodus leucichthys) (Güldenstadt, 1772) Region(s) of distribution of Inconnu (Stenodus leucichthys) (Güldenstadt, 1772) in the Arctic as digitized for U.S. Geological Survey Scientific Investigations Report 2016-5038. For details on the project and purpose, see the report at https://doi.org/10.3133/sir20165038. Complete metadata for the collection of species datasets is in the metadata document "Dataset_for_Alaska_Marine_Fish_Ecology_Catalog.xml" at https://doi.org/10.5066/F7M61HD7. Source(s) for this digitized data layer are listed in the metadata Process Steps section. Note that the original source may show an extended area; some datasets were limited to the published map boundary. Distributions of marine fishes are shown in adjacent Arctic seas where... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: (Güldenstadt, 1772), Alaska, Arctic, Arctic, Beaufort Sea, All tags... Bering Sea, Bering Strait, Chukchi Sea, Chukchi-Beaufort Lease Area, Distributions, Inconnu, Northwest Territories, Nunavut, Stenodus leucichthys, U.S. Exclusive Economic Zone, Yukon, biogeography, ecology, fish, marine, marine fishery resources, northeast Russia, northwest Canada, Fewer tags 1 2 3 4 5 ... 16 »