Forest and Rangeland Ecosystem Science Center

News

Filter Total Items: 268
Date published: February 5, 2021

Great Expectations: Deconstructing the Process Pathways Underlying Beaver-related Restoration

Beaver-related restoration is a process-based strategy that seeks to re-establish dam building in degraded stream systems by translocating beavers to streams where dams are desired, building artificial structures that mimic beaver dams, or restoring riparian vegetation to attract beavers. 

Date published: February 5, 2021

Eagle Fatalities are Reduced by Automated Curtailment of Wind Turbines

Collision-caused fatalities of animals at wind power facilities create a ‘green versus green’ conflict between wildlife conservation and renewable energy. Automated monitoring systems could improve efficacy of informed curtailment, yet such technology is undertested. 

Date published: January 22, 2021

Assessing Cold-Water Refuges for Salmon and Steelhead in the Columbia River

Interactions among river conditions that influence fish migration success make it challenging to assess management options. 

Date published: January 22, 2021

From Forests to Fish: Mercury in Mountain Lake Food Webs Influenced by Factors at Multiple Scales

Mercury bioaccumulation in mountain lakes varies widely due to strong environmental gradients, and there are complex, hierarchical factors that affect mercury transport and loading, methylmercury production, and food web biomagnification. 

Date published: January 22, 2021

Shared Functional Traits Explain Synchronous Long-Term Trends in Counts of Migratory Raptors

Assessing long-term trends in counts of species is important to understand the consequences of ongoing global environmental change. One approach to study drivers of species assemblage changes is to identify the traits, such as body mass or migratory behavior, associated with count trends among species. 

Date published: January 6, 2021

Assessing Consequences of Human Activity on Wildlife Populations

Human activity sometimes stresses or kills individual animals. Most of the tools we have to address this problem are focused on those individuals. We have limited ways to understand how human activity impacts wildlife populations. USGS scientists have developed a new tool to help managers understand the effects of human stressors on wildlife populations.

Date published: January 5, 2021

Conservation Genetics of the Imperiled Striped Whipsnake in Washington

The striped whipsnake occurs across 11 western U.S. states and into Mexico but has experienced population declines in parts of its range, particularly in Washington.

Date published: December 18, 2020

Annotated Bibliography of Scientific Research on Greater Sage-Grouse Published

The U.S. Geological Survey has reviewed and summarized the substantial body of literature related to the conservation, management, monitoring, and assessement of the greater sage-grouse, creating an annotated bibliography that provides easy access to sage-grouse science developed since 2015. 

Date published: December 4, 2020

Estimating Turbine-Induced Bird and Bat Fatalities on Roads and Pads

Estimating wildlife mortality at wind facilities is complicated, partially because carcasses may not be detected in thick vegetation, rivers, or lakes within plot boundaries.

Date published: November 23, 2020

Diurnal Timing of Nonmigratory Movement by Birds

Birds optimize foraging either by minimizing energy loss through passive movement or by maximizing energetic gain through foraging.

Date published: November 23, 2020

From Satellites to Frogs: Quantifying Ecohydrological Change, Drought Mitigation, and Population Demography in Desert Meadows

Researchers examined ecohydrological responses of drought mitigation actions, such as excavating ponds and installing earthen dams, aimed at conserving populations of the Columbia spotted frog in a semi-arid valley in Nevada.

Date published: November 23, 2020

Evaluating a Rapid Field Assessment System for Anticoagulant Rodenticide Exposure of Raptors

Anticoagulant rodenticides are commonly used to control rodents; however, there is a risk of poisoning non-target species, especially predatory and scavenging birds.