Forest and Rangeland Ecosystem Science Center (FRESC)

News

Filter Total Items: 113
Date published: November 30, 2018

Identification of Secretive Marsh Birds with Statistical Analyses of Recorded Calls

The king and clapper rail are rare and cryptic marsh birds. When encountered, one would likely hear their kek call. But which species is it?

Date published: November 29, 2018

Post-fire Sagebrush Recovery Looks to Landsat Time Series Data for Solutions

When a wildfire rampages through a sagebrush domain, restoring the landscape’s natural vegetation afterward is often a dicey proposition. But now complicate that situation with soil-moisture-robbing drought either before or after the fire. What becomes the best restoration solution then?

Date published: November 9, 2018

Multi-Partner Workshop Highlights Science Actions for a Potential Wildlife Disease Outbreak

A new USGS Open-File Report outlines findings from a scenario building workshop on a wildlife disease, facilitated by the Department of the Interior’s Strategic Sciences Group (SSG) and led by the USGS. 

Date published: November 2, 2018

Multispecies Analysis of Climate Sensitivity in the Pacific Northwest

Species rarity and life history traits are known within the field of conservation biology to be associated with extinction risk and may also be employed to inform their sensitivity or capacity to adapt to future climates. 

Date published: November 2, 2018

Effects of Disturbance on Vascular Plants and Biocrusts in Sagebrush Steppe

Semi-arid sagebrush ecosystems experience chronic disturbances through grazing, invasive grasses, and acute disturbance of fire. Biocrusts, a community of cyanobacteria, mosses, and lichens, develop on soil surfaces and contribute to the land’s resistance to invasive plants. 

Date published: November 2, 2018

Vegetative Community Response to Landscape Scale Post-fire Herbicide (Imazapic) Application

The timing of herbicide application following wildfire can strongly influence its effectiveness. USGS researchers evaluated the effect of the commonly used herbicide imazapic on targeted exotic annual grasses and non-target plants, applied the first winter or second fall after the 2015 Soda wildfire. 

Date published: October 26, 2018

Protocol for Describing Indicators of Rangeland Health

Assessing rangeland health is useful from a land management perspective in providing a baseline or early indicator of degradation and for prioritizing habitat across a landscape for restoration.

Date published: October 26, 2018

A Unified Research Strategy for Disease Management

As wildlife diseases increase globally, an understanding of host-pathogen relationships can elucidate avenues for management and improve conservation efficacy. Amphibians are among the most threatened groups of wildlife, and disease is a major factor in global amphibian declines.

Date published: October 26, 2018

Effects of Nitrogen and Sulfur Deposition on Tree Growth, Survival, and Carbon Sequestration Across the U.S.

There is scientific controversy about whether nitrogen deposition increases forest carbon sequestration. All tree species do not exhibit the same response to nitrogen and responses may be complicated by interactions with biotic and other abiotic factors such as sulfur deposition. 

Date published: October 5, 2018

Autumn Movements of Oregon Spotted Frog and Winter Habitat Use in the Cascade Mountains of Oregon

The Oregon spotted frog is endemic to the Pacific Northwest where loss and alteration of wetland habitats have contributed to declines in the species. Like many amphibians, the Oregon spotted frog uses multiple habitats across seasons.

Date published: October 5, 2018

A Database Tool for Estimating Fuel Loadings Across a Range of Intact to Degraded Sagebrush Habitats in Southern Idaho

USGS researchers created an interactive Fuels Guide and Database, providing vegetation and fuel loading information and photographs for big sagebrush (Artemisia tridentata) ecological sites in the Morley Nelson Snake River Birds of Prey National Conservation Area (NCA) in southern Idaho.

Date published: September 28, 2018

Large-scale Review of Amphibian Species and Community Response to Climate Change

Amphibian species and community richness has been declining in North America and climate change may play a role in these declines. Global climate change has led to a range shift of many wildlife species and thus understanding how these changes in species distribution can be used to predict amphibian community responses that may improve conservation efforts.