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Highlight IDTitleStrategic Program Area(s)YearStation
Photo of This report summarizes current knowledge on yellow-cedar and offers opportunities to adapt conservation and management of yellow-cedar in Alaska. USDA Forest Service
ID: 772
A Climate Adaptation Strategy for Conservation and Management of Yellow-Cedar in Alaska

A new report assesss past, current, and expected future condition of yellow-cedar forests on all land ownerships where yellow-cedar grows in Ala ...

Principal Investigator : Paul Hennon

Resource Management and Use2015PNW
Photo of A cheatgrass invasion after burning in a ponderosa pine-bunch grass plant community on the Malheur National Forest in Oregon. Study plots are monitored through time to examine the long-term response of cheatgrass to different season and intervals of prescribed burning.
ID: 1372
Cheatagrass response to prescribed burning in Oregon studied over 10 years

Scientists created a model to explain cheatgrass dynamics at different invasion stages, from local cheatgrass establishment to broader scale in ...

Principal Investigator : Becky K. Kerns

Invasive Species2017PNW
Photo of Badger Creek in Lewis and Clark National Forest, Mont. Streams in the northern Rocky Mountains are already being affected by increased air temperatures and declining snowpacks.
ID: 1369
Climate change in the Rocky Mountains

Major effects likely for the natural resources in the northern Rockies, although adaptation options are available to reduce negative outcomes.

Principal Investigator : David L. Peterson

Wildland Fire and Fuels
Inventory and Monitoring
Water, Air, and Soil
Wildlife and Fish
Resource Management and Use
2017PNW
Photo of Smoke from the King Fire on the El Dorado National Forest. NASA
ID: 677
Delivery of Smoke Science to Incident Operations

Forest Service scientists, working with the Washington Office Fire and Aviation Management to support the Wildland Fire Air Quality Response Pro ...

Principal Investigator : Sim Larkin

Wildland Fire and Fuels
Water, Air, and Soil
2014PNW
Photo of Regional change in southeast Alaskan forests is created by asymmetrical fine-scale disturbance and growth. USDA Forest Service
ID: 765
Disturbance and Regrowth in Southeast Alaska Forests Shows Spatial Patterning

Southeast Alaska is gaining forest area on the northern side of mountain slopes, higher latitudes, and higher elevations while losing forest are ...

Principal Investigator : Tara M. Barrett

Resource Management and Use
Inventory and Monitoring
2015PNW
Photo of Researchers prepare to launch a balloon into a smoke plume to measure emissions during an operational scale fires at Eglin Air Force Base, Florida. Roger Ottmar, USDA Forest Service
ID: 515
Fire Combustion Experiment Produces Big Data Set to Validate a New Generation of Fire Models

Three operational scale fires (about 494-988 acres) and six fine scale (about 328-656 foot blocks) replicate units at Eglin Air Force Base, Flor ...

Principal Investigator : Roger D. Ottmar

Wildland Fire and Fuels2013PNW
Photo of Trees killed by sudden oak death near Big Sur, Calif.
ID: 1367
Fire in the wake of sudden oak death

Study predicts future flammability in plant communities where tanoak has been killed by sudden oak death.

Principal Investigator : Julian (Morgan) Varner

Water, Air, and Soil
Wildland Fire and Fuels
Inventory and Monitoring
Resource Management and Use
2017PNW
Photo of A researcher collects fuel samples during a prescribed burn as part ofWashington State’s Forest Resiliency Burning Pilot project.
ID: 1342
Forest Service research supports Washington State’s Forest Resiliency Burning Pilot Project

Forest Service researchers characterized fuel before and after prescribed burns in eastern Washington State and assessed post-fire tree mortalit ...

Principal Investigator : Roger D. Ottmar

Wildland Fire and Fuels
Inventory and Monitoring
2017PNW
Photo of Researchers put radio tags on barred owls to learn what forest types the owls preferred. USDA Forest Service
ID: 773
Forest Structure Characteristics Within Barred Owl Home Ranges are Similar to Areas Used by Spotted Owls

Competitive interactions with barred owls are an important factor contributing to the population decline of the threatened northern spotted owl. ...

Principal Investigator : Peter Singleton

Wildlife and Fish2015PNW
Photo of The anticipated arrival of average annual temperatures that are outside historical ranges within the conterminous Unites States if greenhouse gas emissions continue to rise throughout the 21st century. Becky Kerns, U.S. Department of Agriculture Forest Service.
ID: 1187
Mapping Coincidence of Landscape Exposure to Multiple Stressors Including Climate Change

New maps factor in climate change and illustrate landscape exposure to additional stressors (wildfire potential, insects and disease risk, urban ...

Principal Investigator : Becky K. Kerns

Resource Management and Use2016PNW
Photo of Daily prediction of atmospheric black carbon originating in the United States transported to the Arctic. Forest Service
ID: 74
Mitigating Arctic Black Carbon Deposition

Scientists identify meteorological conditions when black carbon does not travel to the Arctic

Principal Investigator : Sim Larkin

Wildland Fire and Fuels2012PNW
Photo of Woody debris after logging was removed at the site above; 3 years later Scotch broom, a nonnative invasive shrub, covered 26 percent of the area, whereas it covered 6 percent of the area when logging debris was left on site. Tim Harrington, Forest Service
ID: 341
More Scotch broom found where logging debris was removed

Scotch broom, a nonnative, invasive species, is a severe competitor of young Douglas-fir.

Principal Investigator : Timothy B. Harrington, Ph.D.

Resource Management and Use2011PNW
Photo of Invasive Scotch broom shades out tree seedlings and other native vegatation. Eric Coombs, Oregon Department of Agriculture
ID: 678
New Herbicides Developed to Fight Scotch Broom

Scotch broom is a large, nonnative shrub that has invaded forest sites throughout the Pacific Northwest. Three recently developed herbicides pro ...

Principal Investigator : Timothy B. Harrington, Ph.D.

Invasive Species
Resource Management and Use
2014PNW
Photo of Prescribed burns, such as this one in the Coconino National Forest in northern Arizona, are an effective way to reduce accumulated fuels. New insights on the physiological response of trees to heat stress will help land managers determine the likelihood of tree mortality following a burn.
ID: 1346
New insight to how exposure to sub-lethal temperatures affects trees

When woody tree tissues reach 86 to 140 degrees Fahrenheit (30 to 60 degrees Celsius) during a fire, three physiological mechanisms may be trig ...

Principal Investigator : Rick G. Kelsey

Wildland Fire and Fuels
Resource Management and Use
Inventory and Monitoring
Water, Air, and Soil
2017PNW
Photo of
ID: 76
New Techniques Improve National Emissions Inventory for Wildland Fire

The U.S. Environmental Protection Agency (EPA) is using new techniques to create the next national emissions inventory for wildland fire

Principal Investigator : Sim Larkin

Wildland Fire and Fuels2012PNW
Photo of A burned stand that has not been salvaged logged. USDA Forest Service
ID: 790
Postfire Logging Reduces Future Surface Woody Fuels in Dry Coniferous Forests

Severe wildfires create pulses of dead trees that influence future fuel loads, fire behavior, and fire effects as they decay and deposit surface ...

Principal Investigator : David W. Peterson

Wildland Fire and Fuels
Resource Management and Use
2015PNW
Photo of An aerial look at damage caused by the amber-marked birch leaf miner in Anchorage, Alaska. Forest Service
ID: 78
Predicting the Path of the Amber-Marked Birch Leaf Miner

Scientists model future infestation of an invasive insect in Anchorage, AK

Principal Investigator : John Lundquist

Invasive Species2012PNW
Photo of
ID: 342
Presence of tanoak reduces Douglas-fir mortality from black-stain root disease

Black-stain root disease is a native pathogen of conifers in the Pacific Northwest. The disease reduces growth and ultimately kills the infected ...

Principal Investigator : Timothy B. Harrington, Ph.D.

Resource Management and Use2011PNW
Photo of A prescribed burn such as this one emits a relatively small carbon pulse. Roger Ottmar, USDA Forest Service
ID: 518
Pros and Cons of Fuel Treatments Versus Periodic Wildfire Determined

Hazardous fuel treatments in dry Western forests generally reduce carbon storage over time compared to periodic wildfires, but the treatments en ...

Principal Investigator : David W. Peterson

Wildland Fire and Fuels2013PNW
Photo of A pygmy rabbit. Boise State University, Boise State Univsersity
ID: 668
Pygmy Rabbits Use Nutritional and Chemical Cues While Making Foraging Decisions

Pygmy rabits are dietary specialists that feed on sagebrush (Artemisia spp.) and forage on specific plants more than others within a foraging pa ...

Principal Investigator : Rick G. Kelsey

Wildlife and Fish
Resource Management and Use
2014PNW
Photo of Yellow-cedar (Callitropsis nootkatensis) in Cedar Bay, Alaska.
ID: 1368
Recent increases found in yellow-cedar in Alaska

In most unmanaged forests in Alaska, yellow-cedar has recently increased, as measured by live tree basal area, and the average mortality rate ha ...

Principal Investigator : Tara M. Barrett

Inventory and Monitoring
Outdoor Recreation
2017PNW
Photo of
ID: 81
Responding to Climate Change on National Forests

A new guidebook provides a scientific foundation and framework for preparing for climate change

Principal Investigator : David L. Peterson

Resource Management and Use2012PNW
Photo of A smoke monitor collects data during a prescribed on Deschutes National Forest. USDA Forest Service
ID: 776
Scientists Acquire Better Knowledge of Smoke Transport During Prescribed Burning in the Wildland-urban Interface of Bend, Oregon

Smoke from prescribed fires in the Deschutes National Forest has negatively affected the city of Bend, Oregon, nine times over the past two year ...

Principal Investigator : Susan O'Neill

Wildland Fire and Fuels
Water, Air, and Soil
2015PNW
Photo of
ID: 238
Scientists develop current and future habitat suitability maps for invasive tamarisk species

Tamarisks are shrubs or small trees considered by some to be among the most aggressively invasive and potentially detrimental exotic plants in t ...

Principal Investigator : Becky K. Kerns

Invasive Species2010PNW
Photo of A Forest Service technician measures a snag in Alaska as part of the National Forest Inventory and Analysis Program. Jon Williams, USDA Forest Service
ID: 531
Scientists Develop the First Estimates of Aboveground Carbon Flux and Storage in Trees Within the National Forests of Alaska

While the Tongass National Forest had no detectable change in above-ground tree carbon, the Chugach National Forest had an average annual increa ...

Principal Investigator : Tara M. Barrett

Inventory and Monitoring2013PNW
Photo of Yellow-cedar's shallow roots make it vulnerable to freezing injury in spring when snow is not present to provide insulation. Paul Hennon, Forest Service
ID: 75
Scientists Find Cause of Yellow-cedar Death in Alaska's Coastal Forests

Absence of snow to protect shallow roots results in roots freezing and extensive tree death

Principal Investigator : Paul Hennon

Resource Management and Use2012PNW
Photo of Forest Service scientists check an instrument that measures smoke concentrations downwind from a research burn. Randy Gon, U.S. Air Force
ID: 516
Scientists Publish National and International Methods of Linking Particulate Matter in the Air to Potential Health Impacts from Wildfire Smoke

Scientists with the Forest Service's Pacific Northwest Research Station pinpoint the limitations of using visual range measurement to estimate ...

Principal Investigator : Susan O'Neill

Wildland Fire and Fuels
Water, Air, and Soil
2013PNW
Photo of Researchers assess a site in southern Oregon after a windstorm. A portion of the study area was later salvaged logged and treated to reduce hazardous fuel. Morris Johnson, USDA Forest Service
ID: 525
Scientists Study Salvage Logging After a Major Windstorm

These results illustrate potential differences between the effects of salvage logging after windstorms and the effects of salvage logging after ...

Principal Investigator : Morris C. Johnson

Resource Management and Use2013PNW
Photo of A fallen coast live oak, Quercus agrifolia, in California killed by sudden oak death. Dave Shaw, USDA Forest Service
ID: 534
Scientists Uncover New Information About Tree Resistance to Sudden Oak Death

Sterols and tannins in host tree tissues influence the growth and sporulation of sudden oak death pathogen.

Principal Investigator : Rick G. Kelsey

Resource Management and Use2013PNW
Photo of A researcher collects a soil sample that will be analyzed to determine how retention of logging debris affects nutrient levels. Tim Harrington, USDA Forest Service
ID: 520
Some Logging Debris Cover Boosts Growth of Douglas-fir Seedlings on Low-nutrient Site

Stem growth of Douglas-fir seedlings with 40 percent debris cover and competing vegetation was greater than that of seedlings with zero or 80 pe ...

Principal Investigator : Timothy B. Harrington, Ph.D.

Resource Management and Use2013PNW
Photo of A technician ignites a controlled burn in pine flatwoods of the Apalachicola National Forest.  Clint Wright, USDA Forest Service
ID: 517
Statistical Models Improve Predictions of Fuel Consumption and Emissions During Prescribed Fires

The scientists developed ecosystem- and season-specific statistical models for predicting fuel consumption from easily measured variables that i ...

Principal Investigator : Clinton Wright

Wildland Fire and Fuels2013PNW
Photo of Field crew measure the amount of remaining fuel on the forest floor after a prescribed burn on Nenana Ridge, Alaska. Roger Ottmar, Forest Service
ID: 84
Testing Fuel Treatments in Boreal Forests

A first-of-its-kind study tests the effects of fuel treatment on fuel consumption and fire behavior in Alaska's boreal forest

Principal Investigator : Roger D. Ottmar

Wildland Fire and Fuels2012PNW
Photo of Dustin Smith takes field weather observations during a 2010 prescribed burn in Idaho.
ID: 1427
The Hot-Dry-Windy Index improves fire weather forecasting

A new tool helps fire managers anticipate when wildfires could become erratic or dangerous.

Principal Investigator : Brian Potter

Water, Air, and Soil
Wildland Fire and Fuels
Inventory and Monitoring
Wildlife and Fish
2018PNW
Photo of Forest managers can use this new synthesis to develop science-based plans for managing forests and rangelands under changing environmental conditions. USDA Forest Service
ID: 666
Understanding Vegetation Vulnerability to Climate Change

This synthesis paper reviews potential climate change impacts on Pacific Northwest vegetation and provides a scientific basis for developing vul ...

Principal Investigator : David W. Peterson

Resource Management and Use2014PNW