Forest and Rangeland Ecosystem Science Center (FRESC)

Data and Tools

Filter Total Items: 131
Date published: January 1, 2019

Foothill Yellow-Legged Frog (Rana boylii) Monitoring and Assessment Data from the Trinity River, California (2013-2017)

A key objective of the Trinity River Restoration Program (TRRP) is maintaining and enhancing other wildlife populations through the restoration initiatives. For herpetological species, the foothill yellow-legged frog and western pond turtle have been identified as important species on which to focus monitoring efforts due to their status as California state-listed Species of Concern. As a r...

Date published: January 1, 2019

Probability of Streamflow Permanence (PROSPER) Model Output Layers, (ver. 2.0, February 2019)

The U.S. Geological Survey (USGS) has developed the PRObability of Streamflow PERmanence (PROSPER) model, a GIS raster-based empirical model that provides streamflow permanence probabilities (probabilistic predictions) of a stream channel having year-round flow for any unregulated and minimally-impaired stream channel in the Pacific Northwest region, U.S. The model provides annual

Date published: January 1, 2019

Total Mercury and Methylmercury in Riparian Songbirds and Aquatic Invertebrates from the Willamette Valley, Oregon, 2013-2014

This dataset includes bird species, invertebrate order and family, sample identification codes, capture date, latitude, longitude, habitat, site name, bird age, total mercury concentrations in bird blood, and methylmercury concentrations in whole body aquatic invertebrates.

Date published: January 1, 2019

Oregon Spotted Frog Monitoring at Jack Creek 2015-2018 (final)

This dataset contains information from mark-recapture and egg mass surveys conducted 2015-2018 by USGS as part of an ongoing Oregon spotted frog (Rana pretiosa) monitoring effort at Jack Creek, Klamath County, Oregon. Data consist of spotted frog counts (handled by surveyors) aggregated by date, location, life stage, and sex, as well as data on environmental conditions at the

Date published: January 1, 2019

Northern Nevada aspen (Populus tremuloides) data (2010-2011)

The dataset includes several variables that were sampled across aspen stands in the Santa Rosa, Ruby, and Jarbidge mountain ranges (Great Basin, Northern Nevada, USA) in 2010 and 2011. Across 101 aspen sites, several plot-level attributes were collected (e.g. elevation, slope, aspen stand type). For each plot, data describing live trees (both those less than 7.5 cm diame

Date published: January 1, 2019

Streamflow Permanence Class rasters (PROSPER), 2004-2016, (ver. 2.0, February 2019)

Streamflow Permanence Class (SPC) rasters represent the classification of the raw streamflow permanence probabilities produced by the PRObability of Streamflow PERmanence (PROSPER) model into categorical wet and dry classes, annually for years 2004 through 2016, and overall mean. Raw probabilities were classified into a -5 (dry) to +5 (wet) scale based on the spatially varia

Date published: January 1, 2019

The Sagebrush Biome Range Extent, as Derived from Classified Landsat Imagery

This feature estimates the geographic extent of the sagebrush biome in the United States. It was created for the Western Association of Fish and Wildlife Agency’s (WAFWA) Sagebrush Conservation Strategy publication as a visual for the schematic figures. This layer does not represent the realized distribution of sagebrush and should not be used to summarize statistics about the distrib

Date published: January 1, 2019

Streamflow Permanence Probability rasters (PROSPER), 2004-2016, (ver. 2.0, February 2019)

Streamflow Permanence Probability (SPP) rasters represent the raw streamflow permanence probabilities produced by the PRObability of Streamflow PERmanence (PROSPER) model, annually for years 2004 through 2016, and overall mean and standard deviation. The PROSPER model is a GIS raster-based empirical model of probabilistic predictions of a stream channel having year-round flow for any

Date published: January 1, 2019

Biological soil crust cover from the Taylor Grazing Act Exclosures

Seven exclosures that were part of the original 28 Taylor Grazing Act exclosures across northern Nevada were surveyed for cover of biological soil crusts in May 2018. Surveys consisted of 15 quadrats both inside and outside of the exclosures. Quadrats were used to measure biocrust cover via point-intercept at 39 vertices within each quadrat. Cattle grazing outside of the exclosures was...

Date published: January 1, 2019

Data supporting the study of tree species' access to rock-derived nutrients, Tillamook State Forest, 2015

This dataset describes foliar and soil chemistry and isotopes for six tree species in Tillamook State Forest, 2015.

Date published: January 1, 2019

Mercury Concentrations in Songbird Feathers and Tissues

This dataset includes the bird species, sex, age, and total mercury concentrations in feathers, muscle, liver, and nail tissues.

Date published: January 1, 2019

Floodplain data from the Hoh River in Olympic National Park, 1939-2013

Floodplain characteristics were quantified for the Hoh River in Olympic National Park, Washington, USA, using orthophoto imagery taken between 1939-2013.