Forest and Rangeland Ecosystem Science Center (FRESC)

News

Filter Total Items: 121
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.

Date published: June 18, 2018

Geographic Variation in Natal Dispersal of Northern Spotted Owls over 28 Years

USGS and U.S. Forest Service researchers analyzed northern spotted owl natal dispersal, or the distance from natal site to first breeding site, from 1985 – 2012 in Oregon and Washington to examine how barred owls affect northern spotted owls’ movement.

Date published: June 1, 2018

Lead Isotope Analysis of a Juvenile Bald Eagle

A male, 3-4 month old bald eagle was discovered in June, 2015 with a broken left wing and clinical signs of chronic lead toxicity.

Date published: June 1, 2018

Analysis of Surveys to Predict Eagle Interactions with Wind Energy Facilities

To minimize golden eagle fatalities in areas proposed for wind development, point count surveys are usually conducted to estimate bird use.

Date published: May 25, 2018

Progress Report - Effects of Experimental Removal of Barred Owls on Population Demography of Northern Spotted Owls

Evidence suggests that the long-term persistence of northern spotted owls may be in question without additional management intervention.

Date published: May 25, 2018

Use of Created Snags by Cavity-Nesting Birds Across 25 Years

Managers often intentionally create snags to mitigate the long-term declines of natural snags, yet information regarding use of created snags by wildlife across long timescales is lacking.

Date published: May 25, 2018

Terrestrial Fauna are Agents and Endpoints in Ecosystem Restoration Following Dam Removal

Research aimed at understanding physical and ecological outcomes following dam removal have increased, but roles of terrestrial fauna in the restoration process remain poorly understood.

Date published: May 18, 2018

Projecting Climate Change Effects on Aspen Distribution and Productivity

Aspen forests support numerous wildlife species and provide high quality forage for livestock and game.

Date published: May 18, 2018

Oregon Spotted Frog Mark-Recapture Sampling and Beaver Habitat Assessment

The Oregon spotted frog (OSF) has been extirpated from much of western Oregon and remaining populations are concentrated along the east flank of the Cascade range.

Date published: May 18, 2018

Phenology in Young Coho Salmon in the Copper River Delta, Alaska

Researchers from Oregon State University, the USGS, and the U.S. Forest Service studied coho salmon, from hatching through the first summer of life, in the Copper River Delta, Alaska to evaluate links between phenologies of life stages in a species with a complex life cycle.

Date published: May 11, 2018

eDNA Consultation

Environmental DNA – or eDNA - analytical methods are effective for estimating site occupancy and species distribution of aquatic organisms.

Date published: May 11, 2018

Evaluating a Novel Biopesticide for Controlling Exotic Annual Grasses Following Rangeland Wildfire

Invasions by exotic annual grasses, most notably cheatgrass and medusahead, are unambiguous threats to rangelands in the western United States, diminishing livestock productivity and increasing wildfire activity.