Waiting on a mule deer crossing…
Statistical models used to infer mating parameters and pollen dispersal characteristics.
Script integrates PRISM gridded data, NCEP-NCAR Reanalysis data, and analytical calculations to create consistent meteorological forcing dataset.
Dissolved sulfide concentration determined by reacting H2S with N,N-dimethyl-p-phenylene diamine under acidic conditions to form methylene blue.
Laboratory method for sample preparation and analysis.
Field sampling and geological survey to assess mineral resource potential in wilderness study areas.
Fire assay for gold and silver, and spectrographic analysis for 40 elements including copper, lead, molybdenum, tungsten, and uranium.
Statistical analysis using mixed models to test for differences in network indices across seasonal periods.
Processing and subsetting of raw WRF output variables to watershed region using xarray software.
Model selection analyses to evaluate possible transmission pathways including indirect vector transmission and direct predation transmission.
Uses Modulair-PM (QuantAQ) sensors with nephelometer and optical particle counter (OPC) to measure mass concentrations of PM1, PM2.5, and PM10, along with particle size distributions from 0.35-40 micr...
Specimens were analyzed using 18S and COI gene sequencing for molecular characterization.
Method used to root phylogenetic trees when outgroup taxa create long-branch attraction problems.
Analysis of samples for mineral composition, element composition, and nitrogen chemistry at multiple laboratories.
Active 1D MASW test data collected to estimate 1D seismic shear-wave velocity structure at sites.
Upward-facing MFRSR measures downwelling irradiance through sequential observations reconstructed from irradiances during various shadowband positions.
Statistical modeling approach to estimate salinity and selenium loads using geospatial and water-quality data as predictors.
Collection of multispectral data in tif format for analysis of beaver-impacted stream corridors.
Sequencing of 648 or 889 base pair region of the ND2 gene for at least 10 individuals from 53 contemporary populations to determine haplotype variation.
Sequencing of mitochondrial ND2 gene regions for phylogenetic analysis of cutthroat trout lineages.
Calculation of Normalized Differential Vegetation Index from 4-band aerial imagery using (NIR-Red)/(NIR+Red) formula.
National Ecological Observatory Network Airborne Observation Platform flights acquiring LiDAR, imaging spectroscopy, and high-resolution camera imagery.
Creation of digital surface model from 2018 NEON Airborne Observation Platform dataset representing height above sea level for objects attached to the ground.
Sample day by species matrix preparation for Non-metric Multidimensional Scaling analysis of vouchered bee data.
Nuclear magnetic resonance data processed to determine T2 relaxation time distribution for water content and geometric mean calculations.
Compilation and processing of NOAA weather data for degree-day calculations from 1950-2015. Temperature data aggregation for thermal ecology analysis.
R interface for graph theory and network analysis using the igraph library.
Controlled experiment where subjects are not given choices, used to test responses under specific conditions without alternatives.
Used eCognition software with RGB bands and normalized difference water index (NDWI) to classify channel water surface from imagery.
USGS Central Region Energy Team method for assessing oil and gas resources by defining provinces, Total Petroleum Systems, and Assessment Units based on geological characteristics.
Deployment of dissolved oxygen probes in water column and riverbed at 10, 20, and 35 cm depths with autonomous telemetry.
Geometric processing method required to convert raw-space data to map-space surface reflectance.
Overlap estimates used to evaluate temporal changes within and between elevations.
Statistical testing of contribution of season, depth and location on viral community structure.
Data cleaning and post-correction process to remove bad values from raw POPS measurements, providing ready-to-use datasets.
Statistical method used to determine the most plausible branching schemes linking taxonomic groups.
Collection of airborne particulates from snow and dry deposition for lead isotopic analysis.
Genetic analysis using nuclear microsatellite markers to determine paternal parentage and pollen dispersal patterns.
Derivation of hydraulic permeability and porosity from ERT data through petrophysical relationships for model parameterization.
Collection of first sighting and median activity data across diverse taxonomic groups over 45 years (1975-2020).
Analysis of evolutionary relationships and taxonomic classification to understand angiosperm radiation into freezing environments.
Analysis of mitochondrial DNA, nuclear DNA, and morphological data using parsimony, maximum likelihood, and Bayesian methods.
Used to examine evolution of leaf economics spectrum across 28 species of Helianthus across environmental gradients.
Used to investigate evolutionary pathways of traits and climatic niches and their effect on diversification rates.
Analysis of concatenated genetic data using phylogenetic mixture models to investigate evolutionary relationships.
Built a time-calibrated phylogenetic tree for 337 Proteaceae species using five chloroplast markers.
Identification methods for marine phytoplankton including counts and abundance ratios of over 50 genera.
Field sampling using plot-based methods to assess time series data of aeolian sediment collections across varying climates, vegetation cover, and land uses. Includes field monitoring stations for cont...
Analysis of pollen from archaeological site sediments to reconstruct past vegetation.
Analysis of plastic samples to determine polymer composition and material properties.
Generation of contours showing the generalized altitude of the potentiometric surface for the shallow groundwater system. Contours were created from values in the raster dataset potalt.