Skip to main content
Advanced Search

Filters: Tags: {"type":"Theme"} (X) > Categories: Publication (X) > partyWithName: U.S. Geological Survey - ScienceBase (X)

33 results (195ms)   

View Results as: JSON ATOM CSV
thumbnail
Forest- Data collected once using GIS prior to fish sampling. Our approach was to focus the study on smaller, headwater catchments because larger streams drained areas containing both hemlock and mixed hardwood forest, making forest-specific comparison intractable. In addition, most of these larger watersheds were impacted by humans (e.g., impoundments, agriculture, quarries) that could confound our assessment of the influence of hemlock. Even after limiting the study to headwater catchments, other possible confounding factors remained; we controlled for landscape variability (i.e., terrain and stream size) through the sampling design and we excluded others (i.e., minimum catchment area,beaver activity) through...
thumbnail
This raster represents a continuous surface of sage-grouse habitat suitability index (HSI,created using ArcGIS 10.2.2) values for Nevada during the breeding season.
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 Data for this study were obtained from a combination of unpublished data and published literature values.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...
thumbnail
This dataset contains data collected within limestone cedar glades at Stones River National Battlefield (STRI) near Murfreesboro, Tennessee. This dataset contains information on soil microbial metabolic response for soil samples obtained from certain quadrat locations (points) within 12 selected cedar glades. This information derives from substrate utilization profiles based on Biolog EcoPlates (Biolog, Inc., Hayward, CA, USA) which were inoculated with soil slurries containing the entire microbial community present in each soil sample. EcoPlates contain 31 sole-carbon substrates (present in triplicate on each plate) and one blank (control) well. Once the microbial community from a soil sample is inoculated onto...
thumbnail
To ensure comparable spatial and temporal coverage with similar historic datasets, we flew 32 east-west-oriented uniform transects (spaced at 15' latitude [27.8-km] intervals) when possible to the 2000-m isobath (includes shelf, slope, and rise waters). At the request of BOEM, we included six focal-area surveys nested within the overall broad transect survey area. Each focal-area survey consisted of ten 25-km, parallel transect lines targeting shelf waters and spaced at 6-km intervals. This pattern (broad survey lines and Focal Area survey lines) was surveyed during each oceanographic season: summer (June-July), fall (September-October), and winter (January-February) during 2011 and 2012. Aerial survey methods follow...
thumbnail
This dataset contains data collected within limestone cedar glades at Stones River National Battlefield (STRI) near Murfreesboro, Tennessee. This dataset contains measurements of soil respiration at certain quadrat locations (points) within 12 selected cedar glades. Field measurements were made of soil respiration (carbon dioxide efflux) using a LICOR Infrared Gas Analyzer (IRGA), LI-6400 XT portable photosynthesis device (LICOR Inc., Lincoln, NE, USA), fitted with a soil-chamber attachment. At least 48 hours prior to soil respiration measurement, three soil collars (plastic rings of approximately 2 inches depth) were inserted into the soil surface at each point and the height of each soil collar above the soil...
thumbnail
This raster represents a continuous surface of sage-grouse habitat suitability index (HSI) values for Nevada during summer, which is a surrogate for habitat conditions during the sage-grouse brood-rearing period.
thumbnail
This shapefile represents habitat suitability categories (High, Moderate, Low, and Non-Habitat) derived from a composite, continuous surface of sage-grouse habitat suitability index (HSI) values for Nevada and northeastern California during summer¸ which is a surrogate for habitat conditions during the sage-grouse brood-rearing period.
thumbnail
Drylands cover 40% of the global terrestrial surface and provide important ecosystem services. While drylands as a whole are expected to increase in distribution and aridity in coming decades, temperature and precipitation forecasts vary by latitude and geographic region suggesting different trajectories for tropical, subtropical, and temperate drylands. Uncertainty in the future of tropical and subtropical drylands is well constrained, whereas soil moisture and ecological droughts, which drive vegetation productivity and composition, remain poorly understood in temperate drylands. Here we show that, over the 21st century, temperate drylands may contract by a third, primarily converting to subtropical drylands,...
thumbnail
This dataset contains data collected within limestone cedar glades at Stones River National Battlefield (STRI) near Murfreesboro, Tennessee. This dataset contains measurements of volumetric soil water content at certain quadrat locations (points) within 12 selected cedar glades. All soil water content measurements in this file were performed by thermogravimetric analysis (oven-drying) using the following procedure. First, soil samples were obtained using a brass cylinder of height 5 centimeters (cm) and interior diameter 4.9 cm. The cylinder was partially inserted into the soil, using a hammer if necessary, to a depth of roughly 2 to 3 cm. Soil adjacent to the inserted cylinder was removed and a flat plastic spatula...
thumbnail
This dataset contains data collected within limestone cedar glades at Stones River National Battlefield (STRI) near Murfreesboro, Tennessee. This dataset contains measurements of soil pH at certain quadrat locations (points) within 12 selected cedar glades. These measurements were obtained according to the following protocol: (1) for each quadrat location (point), one soil sample was obtained under sterile conditions, using a trowel wiped with methanol and rinsed with distilled water, and was placed into an autoclaved jar with a tight-fitting lid and placed on ice, (2) soil samples were transported to lab facilities on ice and immediately refrigerated, (3) soil samples were transferred to clean aluminum trays and...
thumbnail
This shapefile represents habitat suitability categories (High, Moderate, Low, and Non-Habitat) derived from a composite, continuous surface of sage-grouse habitat suitability index (HIS, created using ArcGIS 10.2.2) values for Nevada and northeastern California during spring, which is a surrogate for habitat conditions during the sage-grouse breeding and nesting period.
thumbnail
This raster represents a continuous surface of sage-grouse habitat suitability index (HSI) values for Nevada. HSIs were calculated for spring, summer, and winter sage-grouse seasons, and then multiplied together to create this composite dataset.
thumbnail
This dataset contains data collected within limestone cedar glades at Stones River National Battlefield (STRI) near Murfreesboro, Tennessee. This dataset contains information on soil microbial metabolic diversity for soil samples obtained from certain quadrat locations (points) within 12 selected cedar glades. This information derives from substrate utilization profiles based on Biolog EcoPlates (Biolog, Inc., Hayward, CA, USA) which were inoculated with soil slurries containing the entire microbial community present in each soil sample. EcoPlates contain 31 sole-carbon substrates (present in triplicate on each plate) and one blank (control) well. Once the microbial community from a soil sample is inoculated onto...
thumbnail
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 Rivers and throughout the Columbia River Basin. This work builds on an earlier body of work by Wells et al. 2011, Prioritizing Zebra and Quagga Mussel Monitoring in the Columbia River Basin (PDF link...
thumbnail
This dataset contains data collected within limestone cedar glades at Stones River National Battlefield (STRI) near Murfreesboro, Tennessee. This dataset contains measurements of soil nitrate (parts per million) at certain quadrat locations (points) within 12 selected cedar glades. These measurements were obtained according to the following protocol: (1) for each quadrat location (point), one soil sample was obtained under sterile conditions, using a trowel wiped with methanol and rinsed with distilled water, and was placed into an autoclaved jar with a tight-fitting lid and placed on ice, (2) soil samples were transported to lab facilities on ice and immediately refrigerated, (3) soil samples were transferred to...
thumbnail
This dataset contains data collected within limestone cedar glades at Stones River National Battlefield (STRI) near Murfreesboro, Tennessee. This dataset represents data collected at 150 quadrat locations (points) within 12 selected cedar glades and contains quantitative characterizations of the ground surface, measurements of depth to bedrock (soil depth), and calculations of canopy coverage based on digital photography. When combined with the hydrologic and soil chemical and microbiological datasets described in the summary section, this information can be used to evaluate relationships between abiotic stressors (such as extreme hydrologic conditions, extreme temperatures, or thin soils) and soil microbial indicators....
thumbnail
This dataset contains data collected within limestone cedar glades at Stones River National Battlefield (STRI) near Murfreesboro, Tennessee. This dataset represents interpolated estimates of precipitation (in decimal inches) for 120 quadrat locations (points) within 12 selected cedar glades, for a period of time from 6 days (144 hours) prior to the field visit day up until 3 days (72 hours) prior to the field visit day. At each field visit, precipitation data was collected at four rain gauges installed at STRI. Rain gauge measurements were obtained on the following dates (which correspond to 3 days prior to the fields in the dataset): February 3, 2012; March 2, 2012; March 30, 2012; April 20, 2012; May 22, 2012;...
thumbnail
This dataset represents data collected at 120 quadrat locations (points) within 12 selected cedar glades and contains measurements of relative humidity (percent) at the ground surface for each point. Measurements were obtained on the following dates (which correspond to the fields in the dataset): February 6, 2012; March 5, 2012; April 2, 2012; April 23, 2012; May 25, 2012; June 21, 2012; July 19, 2012; August 23, 2012; September 27, 2012; November 5, 2012; December 17, 2012; January 21,2013; February 18, 2013; March 19, 2013; April 15, 2013; and May 13, 2013. Points classified into four groups (identified by the field "Group") and were visited on a rotating sampling schedule, such that each group of points was...
thumbnail
This dataset represents data collected at 120 quadrat locations (points) within 12 selected cedar glades and contains measurements of soil temperature (at 4 centimeters depth) for each point. Measurements were obtained on the following dates (which correspond to the fields in the dataset): February 6t, 2012; March 5, 2012; April 2, 2012; April 23, 2012; May 25, 2012; June 21, 2012; July 19, 2012; August 23, 2012; September 27, 2012; November 5, 2012; December 17, 2012; January 21, 2013; February 18, 2013; March 19, 2013; April 15, 2013; and May 13, 2013. Points were classified into four groups (identified by the field "Group") and were visited on a rotating sampling schedule, such that each group of points was visited...


map background search result map search result map Aerial Survey 7km bins data Ground-surface characterization data for 150 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Interpolated precipitation data (first interval) for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Relative humidity data for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Average Well Color Development (AWCD) data based on Community Level Physiological Profiling (CLPP) of soil samples from 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Shannon diversity index data based on Community Level Physiological Profiling (CLPP) of soil samples from 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Soil nitrate data for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Soil pH data for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Soil respiration data for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Soil temperature at 4 centimeters depth for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Volumetric soil water content measured by thermogravimetric analysis (oven drying) for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Boat ramp locations within the Columbia River Basin with associated recreational use, water quality measurements, and risk assessment data for zebra and quagga mussels Fish Population and Hemlock data in Delware Water Gap Summer Season Habitat Categories Shapefile Spring Season Habitat Suitability Index raster dataset Spring Season Habitat Categories Shapefile Summer Season Habitat Suitability Index raster dataset Composite Habitat Suitability Index raster dataset Average Well Color Development (AWCD) data based on Community Level Physiological Profiling (CLPP) of soil samples from 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Shannon diversity index data based on Community Level Physiological Profiling (CLPP) of soil samples from 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Soil nitrate data for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Soil pH data for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Soil respiration data for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Ground-surface characterization data for 150 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Interpolated precipitation data (first interval) for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Relative humidity data for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Soil temperature at 4 centimeters depth for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Volumetric soil water content measured by thermogravimetric analysis (oven drying) for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Fish Population and Hemlock data in Delware Water Gap Summer Season Habitat Categories Shapefile Spring Season Habitat Categories Shapefile Summer Season Habitat Suitability Index raster dataset Composite Habitat Suitability Index raster dataset Spring Season Habitat Suitability Index raster dataset Aerial Survey 7km bins data Boat ramp locations within the Columbia River Basin with associated recreational use, water quality measurements, and risk assessment data for zebra and quagga mussels