Forest and Rangeland Ecosystem Science Center (FRESC)

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Filter Total Items: 142
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.

Date published: August 2, 2019

Decision Analysis for the Reintroduction of Bull Trout into the Lower Pend Oreille River, Washington

Structured decision making can help identify realistic objectives and management alternatives to species reintroduction using a quantitative modeling framework.

Date published: August 2, 2019

The Wildlife Society Magazine Article Addresses Climate Sensitivity of Overlooked Species

Research from a recently published study in Biological Conservation is the topic of an upcoming article in a magazine of The Wildlife Society, covering important news and trends in the wildlife profession.

Date published: July 26, 2019

Climate Vulnerability Assessment for Pacific Salmon and Steelhead

Managers seek information about populations most vulnerable to climate change to prioritize resources for climate adaptation efforts.

Date published: July 19, 2019

Timber Harvest Alters Mercury Bioaccumulation and Food Webs in Headwater Streams

Land use change is an important driver of global mercury cycling. Timber harvest is a common land use that can alter associated aquatic ecosystems, yet little is known about how it affects mercury concentrations and associated food web changes.