Forest and Rangeland Ecosystem Science Center (FRESC)

News

Filter Total Items: 146
Date published: November 6, 2019

Status of Pacific Martens on the Olympic Peninsula

Pacific martens remain common in montane regions of Pacific coast U.S. states, yet their distribution and status on the Olympic Peninsula, Washington, is uncertain.

Date published: November 5, 2019

Sources of Lead in Red-Shouldered Hawks

One of the most common pathways of lead exposure in birds is ingestion of contaminated food sources.

Date published: October 2, 2019

Looking for Rattlesnakes on a Sunny Day in Idaho

Boise State University Master’s student Kristina Parker and her volunteer assistants are on the lookout for rattlesnakes on a sunny September day in Idaho.

Date published: October 1, 2019

Detecting Invasive and Rare Species with the National Streamflow Network

Two recently published papers suggest the integration of environmental DNA, or eDNA, sampling at select National Streamflow Network streamgages in the U.S. Northwest is feasible.

Date published: September 16, 2019

Anticoagulant Rodenticides in Pacific Northwest Forest Owls

Researchers evaluated tissues from barred owls collected in Washington and Oregon to assess potential exposure of the Northern spotted owl and other old-forest wildlife in the Pacific Northwest to anticoagulant rodenticides (AR). They used ecologically similar barred owls as a surrogate species for the northern spotted owl, as the two species compete for space, habitat, and small mammal prey...

Date published: September 13, 2019

Encyclopedia Chapter Focuses on North American Sagebrush Steppe and Shrubland

In a chapter of The Encyclopedia of World’s Biomes titled “North American Sagebrush Steppe and Shrubland,” USGS Research Fire Ecologist Doug Shinneman documents the unique characteristics of the sagebrush biome.

Date published: September 10, 2019

Amphibian Occupancy in Chehalis River Floodplain

Floodplain ponds and wetlands are productive and biodiverse ecosystems. Protecting and restoring floodplain ecosystems requires understanding how organisms use these habitats and respond to altered environmental conditions.

Date published: September 9, 2019

New Center Director at the Forest and Rangeland Ecosystem Science Center

CORVALLIS, Ore. — The U.S. Geological Survey has selected Sue Phillips as the new center director of the Forest and Rangeland Ecosystem Science Center. FRESC is headquartered in Corvallis, Oregon, with research offices in Corvallis; Boise, Idaho; Seattle, Washington; and Olympic National Park in Port Angeles, Washington.

Date published: September 4, 2019

Passive Restoration of Vegetation and Biocrusts

Livestock exclosures established in response to the 1934 Taylor Grazing Act offer a chance to quantify reference conditions for biological soil crusts, which are largely unknown.

Date published: August 30, 2019

Characteristics of Feeding Sites of California Condors in Southern California 

The establishment of self-sustaining populations of California condors has been challenging in the human-dominated landscapes of southern California. Some of the challenges are from ingestion of lead and micro-trash.

Date published: August 30, 2019

Individual and Environmental Drivers of Golden Eagle Movement 

Birds move because of internal factors such as for defense or to obtain food, yet the environment the animal experiences also drives movement. Researchers studied trade-offs golden eagles face as they make movement decisions by examining factors such as age and sex, topographic and meteorological data, and time of day.

Date published: August 2, 2019

Application of Multiple-Population Viability Analysis to Evaluate Species Recovery Alternatives

A recently developed method of multiple population viability analysis (MPVA) addresses many limitations of traditional PVA.