Forest and Rangeland Ecosystem Science Center (FRESC)

News

Filter Total Items: 144
Date published: July 13, 2018

Reducing Mercury Loads in The Cosumnes River

The Cosumnes River watershed has seasonal, non-point source hotspots for total mercury and methylmercury production, which discharge to the Sacramento-San Joaquin River Delta in north-central California. To reduce mercury loads to the Delta, researchers created open-water deep cells at the downstream end of wetlands.

Date published: July 9, 2018

Inbreeding in Northern Spotted Owls - Insights From Over 30 Years of Monitoring Data

In a study led by the USGS, researchers developed a framework to infer inbreeding rates of Northern Spotted Owls when incomplete parentage information exists.

Date published: July 9, 2018

Environmental Factors Affect Success of Sagebrush Reseeding Efforts

In the western U.S., big sagebrush ecosystems provide habitat for about 350 species of conservation concern, but are sensitive to disturbance and are in decline. Big sagebrush ecosystems have low and variable precipitation, which makes restoration a challenge.

Date published: July 2, 2018

Reptile Diversity and Abundance at the Idaho National Guard Orchard Combat Training Center and Morley Nelson Snake River Birds of Prey National Conservation Area

Forty years of snake and lizard surveys help scientists understand the consequences of invasive species, wildfires, and other environmental stressors in sagebrush ecosystems.

Date published: June 29, 2018

Assessing Portable Lead Analyzers for Wildlife Conservation

Lead exposure in wildlife is a widespread management and conservation concern. Low-cost, portable lead analyzers have improved access and cost-effectiveness of determining lead concentrations in animal blood samples, yet analytical bias and lack of quality-assurance–quality-control measures can confound results.

Date published: June 25, 2018

Trichomonosis in Golden Eagle Nestlings

Avian trichomonosis, caused by the protozoan Trichomonas gallinae, is an infectious disease affecting birds worldwide, and is usually fatal in nestling golden eagles.

Date published: June 25, 2018

Sampling Strategies for Monitoring Post-Disturbance Treatments on Rangelands

Methodological guidelines are needed to rapidly determine vegetation responses to wildfire and post-disturbance treatments, such as seeding and herbicide applications.

Date published: June 25, 2018

Thresholds and Hotspots for Shrub Restoration Following a Heterogeneous Megafire

Reestablishing perennial native shrubs is essential to short-term rehabilitation and long-term restoration of plant communities in the sagebrush ecosystem following wildfire.

Date published: June 22, 2018

Pollinator Use of Forbs in the Soda Fire Area

Pollinating insects are in serious decline across the United States, which not only impacts agricultural plants, but native plants as well.

Date published: June 18, 2018

Impacts of Altered Precipitation on a Desert Shrub Depends on Timing

Semi-arid shrub steppe occupies a vast geographic range with distinct seasonal patterns in precipitation.

Date published: June 18, 2018

Western Gray Squirrel Habitat and Fuel Management in the North Cascades

The state-threatened western gray squirrel occurs in the northern Cascade Range, Washington, where long-term fire suppression has increased risk of catastrophic wildfire.

Date published: June 18, 2018

Northwest Forest Plan Book Chapter: Northern Spotted Owl Habitat and Populations

Authors from the U.S. Forest Service and the USGS wrote a book chapter outlining how northern spotted owls shaped the Northwest Forest Plan.