Forest and Rangeland Ecosystem Science Center (FRESC)


Filter Total Items: 185
Date published: August 2, 2018

Forest Connectivity and Patterns of Genetic Structure in Northern Spotted Owls

Federal researchers used landscape genetics to evaluate the role that forest connectivity plays in determining genetic connectivity for the federally-threatened northern spotted owl.

Date published: August 2, 2018

Conservation Threats and Priorities for Raptors Across Asia

Scientists from West Virginia University, Hawk Mountain Sanctuary, U.S. Forest Service, and USGS co-authored a book chapter on conservation status, threats, and research priorities for Asian raptors.  

Date published: August 2, 2018

White-tailed Sea Eagle Movements in Central Asia

Behavior of young birds can have important consequences for population dynamics. To study movements and habitat associations of white-tailed sea eagles hatched in a National Nature Reserve in north-central Kazakhstan, researchers telemetered three juvenile sea eagles to track their autumnal post-fledging movements.

Date published: July 27, 2018

Herbicides and Herbivory Interactions Affect Plant Communities and Tree Survival

Land management practices often directly alter vegetation structure and composition, but the degree to which ecological processes such as herbivory are affected is poorly understood. 

Date published: July 20, 2018 Helps Assess Effectiveness of Riparian Restoration Projects

Assessments of restoration effectiveness in riparian areas depend on quality monitoring data, which can be both expensive and difficult to collect. 

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.