Forest and Rangeland Ecosystem Science Center (FRESC)

Data and Tools

Filter Total Items: 131
Date published: November 13, 2017

Mercury Exposure in Piscivorous Birds at the Carson River (NV) Superfund Site, 1997-2006

These data support studies from 1997-2006 on potential toxicity of mercury concentrations within the lower Carson River system to piscivorous birds - snowy egrets, black-crowned night-herons, and double-crested cormorants.

 

Date published: September 21, 2017

Oregon Spotted Frog (Rana pretiosa) Monitoring at Jack Creek 2015-2016

This dataset contains information from mark-recapture and egg mass surveys conducted 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 aggregated by date, location, life stage, and sex, as well as data on environmental conditions at the time each survey.

Date published: September 18, 2017

Created snag characteristics and cavity-nesting bird associations in the CFIRP stands, McDonald-Dunn Research Forest, Corvallis, OR, USA, 2016

We measured characteristics of 731 snags and quantified foraging and breeding use of snags by birds 25-27 years after their creation, and examined whether different harvest treatments (i.e., group selection, two-story, clearcut) and snag configurations (i.e., scattered and clustered) influenced snag characteristics or avian use for foraging and nesting.

Date published: August 31, 2017

Count and detection-nondetection survey data of Barred Owls (Strix varia) in historical breeding territories of Northern Spotted Owls (Strix occidentalis caurina) in the Oregon Coast Ranges, 1995-2016

This dataset contains count and detection-nondetection data of Barred Owls from 106 historical breeding territories of Northern Spotted Owl territories (i.e. sites) in the Oregon Coast Ranges from 1995 to 2016. 

Date published: July 19, 2017

Avian abundance and oak mistletoe survey data from the Willamette Valley, Oregon, 2013-2015

This dataset includes two spreadsheets: The "Avian_abundance_oak_mistletoe_bird_data" spreadsheet contains data regarding Oregon White Oak tree (Quercus garryana) measurements. The "Avian_abundance_oak_mistletoe_surveys_data" spreadsheet contains bird survey observations.

Date published: June 22, 2017

Stream temperature data from Willow-Whitehorse and Little Blitzen watersheds, southeast Oregon, 2011-2015

These tabular, spatial, and code data sets were created in support of a stream temperature monitoring study in the Willow-Whitehorse and Little Blitzen watersheds in southeastern Oregon from 2011-2015.

Date published: May 2, 2017

Streamflow Observation Points in the Pacific Northwest, 1977-2016

This dataset includes spatial locations in the Pacific Northwest where streamflow observations were recorded. For the purpose of this investigation, all streamflow observations were converted into wet or dry indicator values.

Date published: April 12, 2017

Summary of total mercury concentrations in dragonfly larvae, western mosquitofish, and tree swallow eggs collected from Cosumnes River Preserve 2011 – 2013

In order to document potential environmental health risk in Cosumnes River Preserve wetlands due to mercury, we analyzed dragonfly larvae, western mosquitofish, and tree swallow eggs collected from wetlands and rice fields of the Preserve from 2011 to 2013.

Date published: March 27, 2017

Compilation of BLM Monitoring Reports Assessing Post Wildfire Seeding of Rangelands, 2001-2009

We reviewed closeout reports from 2001-2009 to conduct a meta-analysis of seeding after wildfires to determine if seedings may (1) protect ecosystems against soil erosion and (2) reduce invasion or abundance of undesirable nonnative plant species.

Date published: March 21, 2017

Compilation of Studies Assessing Post Wildfire Seeding of Rangelands Worldwide, 1965-2010

We reviewed literature from 1965-2010 to conduct a meta-analysis of seeding after wildfires to determine if seedings may (1) protect ecosystems against soil erosion and (2) reduce invasion or abundance of undesirable nonnative plant species.

Date published: March 1, 2017

Nitrogen cycling rates from sagebrush and cheatgrass-invaded soils in the Northern Great Basin (2008)

This dataset contains data supporting the paper: DeCrappeo, N.M., DeLorenze, E.J., Giguere, A.T., Pyke, D.A., and Bottomley, P.J. Fungal and bacterial contributions to nitrogen cycling in cheatgrass-invaded and uninvaded native sagebrush soils of the western USA (accepted at the journal Plant and Soil). The purpose of the study was to evaluate the relative contributions of

Date published: January 1, 2017

Oregon Spotted Frog (Rana pretiosa) Monitoring in the Oregon Cascades 2012-2016

This dataset contains information from visual encounter surveys conducted between 2012 and 2016 by USGS as part of an ongoing Oregon spotted frog (Rana pretiosa) monitoring effort in the Oregon Cascade Mountain Range. We surveyed 91 sites using a rotating frame design in the Klamath and Deschutes Basins, Oregon, which encompass most of the species' core extant range. Data consist of spo