Forest and Rangeland Ecosystem Science Center (FRESC)

Data and Tools

Filter Total Items: 123
Date published: November 1, 2019

Foothill yellow-legged frog (Rana boylii) surveys in Oregon 2019

We used visual surveys and environmental DNA (eDNA) sampling to document the presence of all life stages of foothill yellow-legged frogs (Rana boylii) at historically occupied sites. We visited 52 stream reaches (sites) on federal and private lands between June and September of 2019. This dataset includes counts of amphibians, crayfish, and fish observed during each site survey, as well as...

Date published: October 30, 2019

Post-fire aspen (Populus tremuloides) regeneration data (2014-2015)

The dataset includes several variables sampled across 54 recently burned aspen sites, with data collected in 2014 and 2015. Additionally, the dataset includes mean 30-year (1980-2008) and mean six year ‘fire-regen period’ (i.e., fire year and five years after fire) climate values for each site. The climate data presented here were used to calculate explanatory variables...

Date published: October 15, 2019

Weed-suppressive bacteria data set collected on Mid-Columbia National Wildlife Refuge

We conducted a case studies testing effectiveness of a soil borne bacteria, Pseudomonas fluorescens strain D7, in controlling Bromus tectorum (cheatgrass) and in affecting the density of sown desirable seedlings. Response variables (foliar cover, aboveground biomass, and density of B. tectorum; density of sown native plants) were measured for three years after treatment.

Date published: October 11, 2019

Cascades frog (Rana cascadae) historical site surveys in the Oregon Cascade Range, 2018-2019

We used visual surveys to document the presence of all life stages of Cascades frog (Rana cascadae) at historically occupied sites. We surveyed 67 sites 1-2 times between May and August of 2018 and 2019. This effort was a continuation of 2001-2004 surveys conducted at the same site pool. This dataset includes counts of amphibians, reptiles, and fish observed during each site survey, as well as...

Date published: September 13, 2019

Anticoagulant rodenticide exposure in Barred Owls (Strix varia) collected in Washington and Oregon 2015-2017

This dataset includes anticoagulant rodenticide (AR) screening results of 40 Barred Owls (Strix varia) collected in forested landscapes of Washington and Oregon from 2015-2017. Liver tissue was collected from each owl and screened for exposure to eight AR compounds, including 4 first-generation ARs (warfarin, diphacinone, chlorophacinone, and coumachlor), and 4 second-generation ARs (...

Date published: February 28, 2019

Reptile Richness in the Range of the Sage-grouse, Derived From Species Range Maps

These data depict reptile species richness within the range of the Greater Sage-grouse. Species boundaries were defined as the total extent of a species geographic limits. This raster largely used species range data from "U.S. Geological Survey - Gap Analysis Project Species Range Maps CONUS_2001", however in order for a more complete picture of species richness, additional sources were used...

Date published: February 25, 2019

Survival data of transplanted sagebrush (Artemesia tridentata) seedlings in relation to vegetative, organismal, and topographic conditions after megafire

This dataset contains information on the survival of individual sagebrush seedlings, stands of seedlings and the vegetative and topographic conditions in which they were planted.

Date published: January 1, 2019

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

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

Date published: January 1, 2019

Terrestrial salamander captures after the 2003 Clark Fire, Willamette National Forest, OR

Data are the result of fixed-area, time-constrained searches for terrestrial salamanders within and nearby a wildfire-affected area of the Willamette National Forest, OR. The spatial extent of the study was within one kilometer of the border of the Clark fire that burned an area of 2,009 ha in 2003. Site surveys occurred during March and April, 2005. An important feature of the data is that...

Date published: January 1, 2019

Long-term amphibian monitoring data from the Willamette Valley, Oregon (2004-2015)

This dataset contains information from surveys conducted 2004-2015 by USGS as part of a long-term amphibian monitoring effort in the Willamette Valley, Oregon. Data consist of site, survey, habitat, and species detection covariates.

Date published: January 1, 2019

Trask Watershed Study Amphibian Survival and Movement Data, 2008-2015

This data set contains mark-recapture information for individuals of Dicamptodon tenebrosus and Ascaphus truei marked for individual recognition. Amphibians represented in this data set were captured in 14 first-order perennial and seasonally intermittent streams in the East Fork of the South Fork of the Trask River in the northern Oregon Coast Range. Individuals are larval and mature aquatic...

Date published: January 1, 2019

Occupancy data for spatiotemporal distribution assessments of bull trout (Salvelinus confluentus) and rainbow trout (Oncorhynchus mykiss) in the Bruneau and Jarbidge River Basins, Idaho and Nevada, USA, in water year 2016

eDNA-based spatiotemporal distribution data (occupancy model format) for rainbow trout (Oncorhynchus mykiss) and bull trout (Salvelinus confluentus) within the Bruneau-Jarbidge Rivers Wilderness in southern Idaho and northern Nevada, USA. Data also include stream discharge and stream temperature data for each site. All data were collected between October 2015 and September 2016.