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Filters Date Range Past year (6) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts U.S. Geological Survey, Alaska Science Center Patil, Vijay P. (ORCID: 0000-0002-9357-194X) U.S. Geological Survey Waldrop, Mark P. (ORCID: 0000-0003-1829-7140) Forest and Rangeland Ecosystem Science Center More... Tag Types Theme (7) Place (7) USGS Scientific Topic Keyword (1) Harvest Set (2) Tag Schemes None (7) NASA GCMD Earth Science Keyword Thesaurus (6) USGS Thesaurus (7) ISO 19115 Topic Category (7) USGS Geographic Names Information System (GNIS) (6) Common geographic areas (1) USGS CSA Biocomplexity Thesaurus (3) View Results as: JSON ATOM CSV

Overview of Sampled Lakes, Yukon Flats National Wildlife Refuge This dataset is a single comma-delimited text file (.csv). Data include the name of lakes where sampling occurred, approximate geographic coordinates of each lake, historical dynamics of the lake, and indication of measurements taken at the lake. Categories: Data; Tags: Alaska, Biogeochemical cycles, Biomass, Biomass dynamics, Biota, All tags... Community ecology, Environment, Landscape ecology, Primary production, Yukon Flats, Yukon Flats National Wildlife Refuge, Fewer tags Aboveground Net Primary Production Estimates from the Yukon Flats National Wildlife Refuge This dataset is a single comma-delimited text file (.csv). Data include the name of lakes where samples were obtained, the historical dynamics of that lake, the sampled community type, and the dry mass of annual new growth. Shrub community measurements are a combination of understory mass from quadrat harvests and shrub stem mass derived from published allometric equations. Categories: Data; Tags: Alaska, Biogeochemical cycles, Biomass, Biomass dynamics, Biota, All tags... Community ecology, Environment, Landscape ecology, Primary production, Terrestrial ecosystems, Wetland ecosystems, Yukon Flats, Yukon Flats National Wildlife Refuge, Fewer tags Soil Properties of Lake-Margin Wetlands of the Yukon Flats National Wildlife Refuge This dataset is a single comma-delimited text file (.csv). Data include the name of lakes where samples were obtained, soil pH, electrical conductivity (EC), water content (VWC), and bulk density (BD) of soil core samples within organic soil horizon in lake-margin wetland plant communities. Categories: Data; Tags: Alaska, Biogeochemical cycles, Biota, Environment, Lake drying, All tags... Landscape ecology, Nutrient cycling, Terrestrial ecosystems, Wetland ecosystems, Yukon Flats, Yukon Flats National Wildlife Refuge, Fewer tags Carbon and Nitrogen Content of Organic Soils in Lake-Margin Wetlands of the Yukon Flats National Wildlife Refuge This dataset is a single comma-delimited text file (.csv). Data include the name of lakes where samples were obtained, soil core dimensions, bulk density, and carbon/nitrogen content of soil core samples within the organic soil horizon in lake-margin wetland plant communities. Categories: Data; Tags: Alaska, Biogeochemical cycles, Biota, Carbon, Environment, All tags... Lake drying, Landscape ecology, Nitrogen, Nutrient cycling, Soil carbon storage, Terrestrial ecosystems, Wetland ecosystems, Yukon Flats, Yukon Flats National Wildlife Refuge, Fewer tags Presence and cover of exotic annual and perennial grass species during five years post-fire on the Soda Wildfire Data includes cover and presence (within microsites and 13 m radius plots) of three exotic annual grass, Bromus tectorum, Taeniatherum caput-medusae, and Ventenata dubia and presence (within microsites) of four perennial bunchgrass species (Agropyron cristatum, Pseudoroegneria spicata, Poa secunda, Elymus elymoides) within the first five years after the 2015 Soda wildfire. Additional landscape and weather covariates hypothesized to influence landscape resistance to invasion are included. Categories: Data; Tags: Botany, Earth, Ecology, Idaho, Land, All tags... Land Use Change, North America, Oregon, USGS Science Data Catalog (SDC), United States, biological invasion, biota, environment, exotic annual grass, invasive species, landscape ecology, landscape resistance, perennial bunchgrass, sagebrush steppe, shrubland ecosystems, terrestrial ecosystems, Fewer tags Soil and Vegetation Data from Lake-Margin Wetlands in the Yukon Flats National Wildlife Refuge This data release provides seven datasets of soil and vegetation data from lake margin soils from throughout the Yukon Flats National Wildlife Refuge. Data includes multiple lakes that are defined as either stable or drying. Lake margin vegetation communities include graminoid, shrub, and forest. Sols are separated into organic and mineral layers. Microbial data includes different phospholipid fatty acids and soil enzyme activity data for multiple enzymes involved in C,N, and P cycling. Data also includes information on respiration rate constants (k) and labile substrate pool (Ao) from soil incubations. Other soil chemical attributes such as soil pH, electrical conductivity, percent C and percent N are also included. Categories: Data; Tags: Alaska, Biogeochemical cycles, Biomass, Biomass dynamics, Biota, All tags... Community ecology, Environment, Landscape ecology, Primary production, Terrestrial ecosystems, USGS Science Data Catalog (SDC), Wetland ecosystems, Yukon Flats, Yukon Flats National Wildlife Refuge, Fewer tags Soil Microbial Data from the Yukon Flats National Wildlife Refuge 2009 to 2012 This dataset includes soil properties and microbial data from lake margin soils throughout the Yukon Flats National Wildlife Refuge. Data include multiple lakes that are defined as either stable or drying. Lake margin vegetation communities include graminoid, shrub, and forest. Sols are separated into organic and mineral layers. Microbial data includes different phospholipid fatty acids and soil enzyme activity data for multiple enzymes involved in C,N, and P cycling. Data also includes information on respiration rate constants (k) and labile substrate pool (Ao) from soil incubations. Categories: Data; Tags: Alaska, Biogeochemical cycles, Biota, Carbon, Environment, All tags... Enzyme activity, Lake drying, Landscape ecology, Microbiology, Nitrogen, Nutrient cycling, PLFA, Phospholipid fatty acid, Soil carbon storage, Terrestrial ecosystems, Wetland ecosystems, Yukon Flats, Yukon Flats National Wildlife Refuge, Fewer tags