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Highlight IDTitleStrategic Program Area(s)YearStation
Photo of Beargrass in bloom. Chris Schnepf, Univestiy of Idaho
ID: 660
Beargrass, Long Treasured by Native Americans, Faces Pressure from the Commercial Floral Industry

Leaf harvest by the floral industry is causing shifts in disturbance within beargrass habitat.

Principal Investigator : Susan Stevens Hummel

Resource Management and Use2014PNW
Photo of Caption: Retreating glaciers leave loose sediment exposed, increasing risk of large debris flows following heavy rain. Gordon Grant, Forest Service
ID: 352
Cascade volcanoes may be at greater risk for debris flows as climate warms

Scientists with the Pacific Northwest Research Station discovered previously unreported links between receding glaciers, areas of stagnant and d ...

Principal Investigator : Gordon Grant

Resource Management and Use2011PNW
Photo of A thinned riparian site within the Density Management and Riparian Buffer Study, Oregon. Deanna Olson, USDA Forest Service
ID: 526
Collected Works Summarize Forest Dynamics and Ecosystem Responses to Partial Overstory Harvests

Density Management in the 21st Century: West Side Story presents abstracts and peer reviewed papers from a 2011 regional conference highlighting ...

Principal Investigator : Paul Anderson

Water, Air, and Soil
Resource Management and Use
2013PNW
Photo of Screen shot of the wood energy fiancial application. USDA Forest Service
ID: 667
Community Biomass Handbook Guides Businesses Seeking to Replace Fossil Fuels with Wood Energy

Available as an eBook, this biomass handbook containes a wood energy financial application that allows users to quickly assess whether wood ener ...

Principal Investigator : Eini C. Lowell

Resource Management and Use2014PNW
Photo of
ID: 353
Conservation priorities identified for Northwest amphibians and reptiles

At a reptile conservation conference, scientists and natural resource managers synthesized conservation concerns and priorities for 105 species ...

Principal Investigator : Deanna ("Dede") H. Olson

Wildlife and Fish2011PNW
Photo of Pine marten. Michael Mengak, Bugwood.org
ID: 94
Conserving Martens, Sables, and Fishers

New book provides the first comprehensive synthesis of knowledge about these species in nearly 20 years

Principal Investigator : Keith Aubry

Wildlife and Fish2012PNW
Photo of The Marmot Dam on the Sandy River in Oregon was breached in October 2007 to improve habitat for salmon and steelhead. Gordon Grant, Forest Service
ID: 91
Dam Removal Produces Largest Release of Sediment in History

Four years of research on the Sandy River after the removal of the Marmot Dam provides guidance for future dam removals

Principal Investigator : Gordon Grant

Water, Air, and Soil2012PNW
Photo of
ID: 242
Deep groundwater mediates streamflow response to climate warming and will provide a major source of summer streamflow for the western U.S. in the future

Prior efforts to model streamflow trends, and hence the availability of water, under future climate scenarios in the Western United States focus ...

Principal Investigator : Gordon Grant

Water, Air, and Soil2010PNW
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
ID: 333
FIA 5-year report summarizes forest conditions in Washington

This report highlights forest conditions and trends from 2002 to 2006 for all forest lands in Washington State. This information establishes a b ...

Principal Investigator : Karen Waddell

Inventory and Monitoring2011PNW
Photo of A koa log. Forest Service
ID: 95
Finding Value in Young-Growth Koa Wood

A demonstration project informs the forest industry in Hawai'i of the quality and uses for young-growth Koa wood

Principal Investigator : Eini C. Lowell

Resource Management and Use2012PNW
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
ID: 237
Focusing only on small trees is not an economical or effective way to reduce fire hazard

PNW scientists created an analysis framework called FIA BioSum that uses the nationwide Forest Inventory and Analysis (FIA) database and allows ...

Principal Investigator : Jeremy S. Fried

Wildland Fire and Fuels2010PNW
Photo of An agricultural area near Sequim, Washington, with recent housing developments on previous agricultural and forest resource lands. Andrew Gray, USDA Forest Service
ID: 513
Forest and Agricultural Land Area Declines in Washington State While Residential and Urban Land Use Increases Over Past 30 years

Station scientists and partners assessed changes in land use and housing density across Washington state from 1976 to 2006. They found that the ...

Principal Investigator : Andrew Gray

Inventory and Monitoring2013PNW
Photo of A field technician installs a potential study plot on the island of O'ahu. Natalie Tangalin, Forest Service
ID: 334
Forest Inventory and Analysis begins work on Hawaiian Islands

Policymakers and natural resource managers need up-to-date, consistent, and credible information on the status and trends of forests in Hawaii a ...

Principal Investigator : Robert Pattison

Inventory and Monitoring2011PNW
Photo of
ID: 223
Forest managers receive requested side-by-side comparison of fuel treatments

Forest managers throughout the United Stated have asked for side-by-side comparisons of treatments to better understand the ecological and econo ...

Principal Investigator : Andy Youngblood

Wildland Fire and Fuels2010PNW
Photo of This map highlights where threats such as wildfire, insects, and disease exist, overlap, and intersect with urban and exurban development. USDA Forest Service
ID: 535
Forest Mapping Study Helps Identify Regions with Multiple Threat Potential, Including Wildfires

Policymakers and land managers can use the maps to identify locations where particular threats may be more concentrated relative to others and t ...

Principal Investigator : Jeff Kline

Wildland Fire and Fuels2013PNW
Photo of A stand of grand fir and Douglas-fir in eastern Oregon. Dave Powell, USDA Forest Service
ID: 665
Forest restoration efforts yield climate benefits

In Douglas-fir and true-fir dominated dry mixed-conifer forests of the northwest, implementing selective harvest and surface fuel treatments gen ...

Principal Investigator : Jeremy S. Fried

Resource Management and Use2014PNW
Photo of During a field tour of Heen Latinee Experimental Forest, Alaska, attendees learned about ongoing research on yellow-cedar. Judy Mason, USDA Forest Serivce
ID: 669
Genetic Analysis Shows the Scale and Pattern of Spatial Genetic Variation in Yellow-Cedar

Genetic analysis shows that yellow-cedar is a diverse and highly mobile species.

Principal Investigator : Richard Cronn

Resource Management and Use2014PNW
Photo of New technologies enable researchers to identify genetic differences within a species, for example, identifying populations from different regions. This diagram of the fisher mitochondrial genome shows the location of genes (blue, red, purple), and variable nucleotide positions (tick marks, inner circle). Richard Cronn, Forest Service
ID: 335
Genetic studies reveal population structure of fisher predate management

This research is being used to aid management decisions about whether these populations warrant protection under the Endangered Species Act. Sci ...

Principal Investigator : Richard Cronn

Wildland Fire and Fuels2011PNW
Photo of A fisher in the snow. Timothy Catton, USDA Forest Service
ID: 536
Habitat Preferences of Fishers

This is the first study to investigate the broader applicability of habitat selection patterns for fishers derived from multiple independent rad ...

Principal Investigator : Keith Aubry

Wildlife and Fish2013PNW
Photo of
ID: 241
Harvest pattern influences survival of forest-dependent species

The Demonstration of Ecosystem Management Options (DEMO) study was established in 1994 to evaluate the benefits of leaving some live trees stand ...

Principal Investigator : Charles Peterson

Resource Management and Use2010PNW
Photo of A two-age stand developing on the overstory study site in Washington's Capitol State Forest. Leslie Brodie, USDA Forest Service
ID: 521
Harvesting Overstory Trees Results in Little Damage to Residual Trees

A growing number of land owners and managers have expressed interest in harvest treatments that retain a partial overstory of trees to reduce th ...

Principal Investigator : Leslie Brodie

Resource Management and Use2013PNW
Photo of Firewood for home heating.  Forest Service
ID: 71
Heating with Wood in Alaska

Converting oil heating systems in residential and commercial buildings in Alaska to renewable wood energy would require 1.3 to 1.7 million cords ...

Principal Investigator : Allen M. M. Brackley

Resource Management and Use2012PNW
Photo of Invasive Japanese knotweed spreads aggressively along river banks, as it has here along Wildcat Creek in western Washington. Shannon Claeson, USDA Forest Service
ID: 528
Herbicide Eradication of Invasive Plants May Release Exotic Invaders

Noxious weed control programs can benefit from including post-treatment plant community surveys to determine if continued management is needed t ...

Principal Investigator : Shannon Claeson

Invasive Species2013PNW
Photo of Housing development near the Gifford Pinchot National Forest, Washington. Rhonda Mazza, USDA Forest Service
ID: 675
Increasing Development Near Public Forest Lands in Washington and Oregon Has Implications for Public Land Management and Fire Suppression

Areas bordering public forest land in Washington and Oregon are showing substantial increases in development, with the number of structures on p ...

Principal Investigator : Andrew Gray

Inventory and Monitoring
Resource Management and Use
2014PNW
Photo of Workshop participants map priority areas as part of the Human Ecology Mapping Project. Renee Bodine, USDA Forest Service
ID: 510
Interactive Mapping Project Advances All Lands Conservation

Mapping human connections both on and off the forest helps land managers better anticipate how changes to access in other jurisdictions may affe ...

Principal Investigator : Lee Cerveny

Resource Management and Use2013PNW
Photo of Garlic mustard, Allaria petiolata, transforms forest understories and was found on 7 percent of the plots in the Northeast and Midwest. John M. Randall, Bugwood.org
ID: 532
Introduced Plant Species Found on Two-thirds of Forest Inventory Plots in the Northeast and Midwest United States

Scientists found 305 introduced species recorded, with multiflora rose (Rosa multiflora) being the most common species.

Principal Investigator : Bethany Schulz

Inventory and Monitoring
Invasive Species
2013PNW
Photo of Mapped elevations that can inform predictions of sea-level rise at the Salmon River Estuary, Oregon. Rebecca Flitcroft, USDA Forest Service
ID: 670
Keeping Pace with Sea-level Rise: Insights for Oregon Estuaries

Scientists mapped the margin of current mean high tide, and contour intervals associated with different potential increases. They found that som ...

Principal Investigator : Rebecca Flitcroft

Water, Air, and Soil
Wildlife and Fish
2014PNW
Photo of
ID: 239
Land use policies affect levels of carbon sequestration

Researchers used the Forest and Agriculture Sector Optimization Model-Greenhouse Gases Model to analyze alternative policy scenarios and compare ...

Principal Investigator : Ralph Alig

Resource Management and Use2010PNW
Photo of Field crew collecting soil samples on the banks of Rio Roberts creek on Prince of Wales Island, Alaska. Dave D'Amore, Forest Service
ID: 339
Learning more about the role of salmon-derived nutrients in Southeast Alaska watersheds

This research tested a common assumption and found that, contrary to conventional wisdom, younger soil closest to the stream had lower concentra ...

Principal Investigator : David V. D'Amore

Resource Management and Use
Water, Air, and Soil
2011PNW
Photo of Bone lichen (Hypogymnia spp.) is a common sight in Alaska's forests. Sarah Jovan, USDA Forest Service
ID: 662
Lichen Are Indicators of Climate Change in Southern Alaska's Forests

Lichens respond quickly to climate changes and potentially allow early detection of shifting conditions before other changes in vegetation are a ...

Principal Investigator : Sarah Jovan, Dr

Inventory and Monitoring2014PNW
Photo of Quercus kelloggii lichen grows in the San Bernardino National Forest that receives about 70 kilograms of nitrogen per hectare per year -- background levels are less than 1kg. Sarah Jovan, Forest Service
ID: 92
Lichen Communities Serve as Canary in the Coal Mine for Air Pollution

A comparison of lichen communities from 1976 to 2008 suggests continued deterioration of air quality in the Los Angeles Basin despite policy and ...

Principal Investigator : Sarah Jovan, Dr

Inventory and Monitoring2012PNW
Photo of Wolf lichen (Letharia spp.) is a species frequently used to estimate nitrogen deposition in western forests. Jason Hollinger, Wikimedia Commons
ID: 663
Lichen Indicate Air Quality Near Natural Gas Wells

Nitrogen in lichen tissues closely correlates with measured nitrogen deposition in forests near natural gas wells in the Bridger Wilderness, WY. ...

Principal Investigator : Sarah Jovan, Dr

Water, Air, and Soil
Inventory and Monitoring
2014PNW
Photo of A rainbow trout. Mark Lisac, U.S. Fish and Wildlife
ID: 672
Lipid Accumulation and Metabolic Rate Influence Steelhead versus Rainbow Trout Life History

The salmonid species Oncorhynchus mykiss can become sea-going steelhead or freshwater rainbow trout. Scientists found that lipid accumulation an ...

Principal Investigator : Gordon Reeves

Wildlife and Fish
Water, Air, and Soil
2014PNW
Photo of The Blue River in H.J. Andrews Experimental Forest, Oregon. Tom Iraci, USDA Forest Service
ID: 530
Long-term Nitrogen Trends Differ in Pristine Forested Streams

Stream nitrate has declined in the Pacific Northwest, in the Northeast, and in Puerto Rico, but it has increased in the Mountain West and the So ...

Principal Investigator : Sherri Johnson

Water, Air, and Soil2013PNW
Photo of
ID: 336
Majority of surveyed family forest owners in eastern Oregon treat land to reduce wildfire risk

This study identified the different types of landowners who might benefit from policies and programs for wildfire risk reduction. It also reveal ...

Principal Investigator : Paige Fischer

Wildland Fire and Fuels2011PNW
Photo of The Klamath Marsh National Wildlife Refuge provides a wide variety of ecosystem services including clean water and air, wildlife habitat, and scenic beauty. Tom Iraci, Forest Service
ID: 72
Managing for Ecosystem Services on Public Land

New report provides an overview of how national forests can address ecosystem services and tradeoffs associated with forest management plans and ...

Principal Investigator : Jeff Kline

Resource Management and Use2012PNW
Photo of The endangered red-cockaded woodpecker (Picoides borealis). Jerry Payne, USDA Agricultural Research Serivce, Bugwood.org
ID: 73
Mapping Hardwood and Softwood Vegetation Types with LiDAR

Study informs forest management activities and assesses woodpecker habitat

Principal Investigator : Robert McGaughey

Inventory and Monitoring2012PNW
Photo of
ID: 228
Maps illustrate 23 years of change on Northwest forests

By using historical remote-sensing data, researchers developed maps of annual forest change between 1984 and 2007. These maps, with a resolution ...

Principal Investigator : Warren Cohen

Inventory and Monitoring2010PNW
Photo of Understanding rates of biomass accumulation is critical to understanding how forest disturbance and regrowth influence carbon dynamics. Connie Harrington, Forest Service
ID: 340
Maps of biomass dynamics support North American Carbon Program

Forest Service scientists and collaborators modeled live, aboveground tree biomass by using Forest Inventory and Analysis field data and applied ...

Principal Investigator : Warren Cohen

Resource Management and Use2011PNW
Photo of A marbled murrelet. Josh London, NOAA
ID: 537
Maps of Marbled Murrelet and Northern Spotted Owl Habitat Look 50 Years Ahead

Station scientists developed detailed wall-to-wall maps of marbled murrelet and northern spotted owl habitat, both current and 50 years into the ...

Principal Investigator : Martin Raphael

Wildlife and Fish
Resource Management and Use
2013PNW
Photo of
ID: 227
Marbled murrelet populations are declining in the Northwest Forest Plan area

The marbled murrelet, a seabird, is a threatened species under the Endangered Species Act. The 1996 Northwest Forest Plan is the guiding plan fo ...

Principal Investigator : Martin Raphael

Wildlife and Fish2010PNW
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 Researchers collect soil samples to learn what mycorrhizal fungi are present in this stand of lodgepole pine on the Deschutes National Forest. Jane E. Smith, USDA Forest Service
ID: 673
Multi-host Fungi May Facilitate Migrations of Pine Species with Climate Change

Mycorrhizal fungi networks provide conduits for nutrient exchange between tree species. In an assisted migration management approach, mycorrhiza ...

Principal Investigator : Jane E. Smith

Water, Air, and Soil
Resource Management and Use
2014PNW
Photo of A stand of ponderosa pine in central Oregon after thinning and prescribed burning. Tom Iraci, Forest Service
ID: 337
Multiple fuel treatments likely needed to restore resiliency in fire-adapted ecosystems

Fuel reduction and restoration treatments can be used to begin restoring late-successional stand structure, but single treatments are insufficie ...

Principal Investigator : Andy Youngblood

Wildland Fire and Fuels2011PNW
Photo of Fuel is masticated prior to a prescribed burn on a study plot in the Pringle Falls Experimental Forest. Rhonda Mazza, Forest Service
ID: 79
National Study Evaluates Fuel Treatments in Reducing Risk of Fire

Mechanical treatments do not serve as surrogates for fire treatments

Principal Investigator : Andy Youngblood

Wildland Fire and Fuels2012PNW
Photo of Standardized sampling of sagebrush habitats can inform management actions for sagebrush obligates like greater sage-grouse. Mary Rowland, USDA Forest Service
ID: 758
National Technical Guide Provides a Foundation for Monitoring Wildlife Habitat on National Forests

This technical guide offers comprehensive guidance for habitat monitoring on public lands in the United States, particularly national forests an ...

Principal Investigator : Mary M. Rowland

Wildlife and Fish
Inventory and Monitoring
2014PNW
Photo of No vacancy: This pouch, laced with the pheromone verbenone, tricks bark beetles into thinking the tree has already been colonized. Rob Progar, USDA Forest Service
ID: 522
Natural Pheromone Found to Repel Mountain Pine Beetles When Outbreak Builds Gradually

Forest Service scientists found that applications of verbenone reduced mountain pine beetle infestation of lodgepole pine trees in treated areas ...

Principal Investigator : Robert Progar

Invasive Species2013PNW
Photo of Douglas-fir killed by sprucebud worm on the Malheur National Forest in eastern Oregon. Dave Powell, USDA Forest Serivce
ID: 664
Net Forest Carbon in Oregon Increased Slightly During the Last Decade

Gains in forest carbon through tree growth and afforestation in the Pacific Northwest were offset by fire, insects, cutting, and deforestation.

Principal Investigator : Andrew Gray

Inventory and Monitoring2014PNW
Photo of
ID: 225
NetMap: A Tool Supporting Watershed Science and Resource Management

The Willamette National Forest is using NetMap to prioritize road restoration and removal projects, and the Oregon Department of Forestry is usi ...

Principal Investigator : Gordon Reeves

Wildlife and Fish2010PNW
Photo of
ID: 226
New genome sequencing method reveals a species evolutionary history

Organelle genomes from plants, animals, and fungi are used as genetic markers to track maternal diversity, historical migration, and maternally ...

Principal Investigator : Richard Cronn

Wildlife and Fish2010PNW
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
ID: 240
New hypothesis for yellow-cedar decline links calcium accumulation to nitrogen cycles and rooting depth

Station scientists formulated a new hypothesis that explains how cedar trees survive in marginal conditions, yet have roots that are susceptible ...

Principal Investigator : David V. D'Amore

Resource Management and Use2010PNW
Photo of Diminishing snowpack will cause reductions in summer streamflows in the Pacific Northwest. Sasha Sulia, USDA Forest Service
ID: 519
New Maps Detail Areas Sensitive to Reduced Summer Streamflows as a Result of Climate Warming

New maps assist resource planners in the Forest Service, Bureau of Land Management, and Oregon Watershed Enhancement Board in assessing risk to ...

Principal Investigator : Gordon Grant

Water, Air, and Soil2013PNW
Photo of
ID: 243
New methods quantify fluxes of carbon from terrestrial and aquatic ecosystems in southeast Alaska

Scientists in southeast Alaska have established methods for quantifying fluxes of carbon from terrestrial and aquatic ecosystems across a gradie ...

Principal Investigator : Richard T. Edwards

Water, Air, and Soil2010PNW
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 Private landowners in central Oregon. Paige Fischer, USDA Forest Service
ID: 661
Nonindustrial Private Forestland Owners Consider Fuel Conditions and Past Wildfire Occurrence in Their Risk Mitigation Decisions

A new landscape simulation model informs forest planning processes.

Principal Investigator : Jeff Kline

Wildland Fire and Fuels2014PNW
Photo of Science-based guidelines for planting and caring for Oregon white oaks have been quickly adopted by people planning regeneration programs to halt the decline of this native tree. Above, a technician examines growth on an oak seedling 8 years after planting. Warren Devine, Forest Service
ID: 338
Oregon white oak regeneration enhanced through proper seed and seedling management

Planting Native Oak in the Pacific Northwest is the first comprehensive study of Oregon white oak planting technique. Without post-planting man ...

Principal Investigator : Connie Harrington

Resource Management and Use2011PNW
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 volunteer pulls invasive knapweed. Tom Iraci, USDA Forest Service
ID: 514
Private Landowner Efforts to Mitigate Invasive Plants Linked to Threat Awareness

Scientists with the Pacific Northwest Research Station investigated perception of risk among nonindustrial private forest owners in Oregon's pon ...

Principal Investigator : Paige Fischer

Invasive Species2013PNW
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 volunteer collects seed from bluebunch wheatgrass in the Blue Mountains, WA, as part of a study to develop seed zones and population movement guidelines. Bluebunch wheatgrass is often used to restore rangeland and burned forested areas. Brad St.Clair, USDA Forest Service
ID: 674
Provisional Seed Zones Developed to Guide Seed Source Decisions for Restoration of Native Species

Forest Service scientists developed generalized provisional seed zones that can be applied to any plant species in the United States to help gui ...

Principal Investigator : Brad St. Clair

Resource Management and Use2014PNW
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 Salmon habitat in the Olympic Experimental State Forest, Washington. Pete Bisson, USDA Forest Service
ID: 527
Research Documents the Influence of Water Temperature on Life Histories of Rainbow Trout and Steelheads

These studies reveal a suite of processes influencing life-history expression in salmonids. The influence of temperature on O. mykiss life histo ...

Principal Investigator : Gordon Reeves

Wildlife and Fish
Water, Air, and Soil
2013PNW
Photo of Northwest Advanced Renewables Alliance is determining the feasibility of producing jet fuel from woody biomass in Oregon and Washington. Northwest Advanced Renewables Alliance
ID: 523
Research Station Helps National Renewable Biofuels Project Engage Community and Industry Leaders

The Northwest Advanced Renewables Alliance is working to form regional alliances and find communities that might fit into a sustainable biofuels ...

Principal Investigator : Eini C. Lowell

Resource Management and Use2013PNW
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 The Columbia River Gorge National Scenic Area. Pete Bisson, USDA Forest Service
ID: 529
River Food Webs are an Important Consideration for River Restoration

The current emphasis on restoring habitat structure, without explicitly considering food webs, has been less successful than hoped in terms of e ...

Principal Investigator : Pete Bisson

Wildlife and Fish2013PNW
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 Cruise tourism continues to grow in southeast Alaska. Here, two ships dock in Juneau. Linda Kruger, USDA Forest Service
ID: 524
Scientists Grapple with the Commercialization of Nature-based Activities

For the recreation and tourism industry in Alaska, the implications of this study reflect the trade-off between tighter control of tourism activ ...

Principal Investigator : Linda E. Kruger, Ph.D.

Outdoor Recreation2013PNW
Photo of A map showing reported amphibian chytrid fungus in 52 of 82 countries sampled to date, and in 516 of 1,240 species. USDA Forest Service
ID: 538
Scientists Link Amphibian Fungus to Increasing Temperature Range

Scientists find the odds of fungus occurrence decreased with increasing temperature range at a site, linking disease emergence to climatic consi ...

Principal Investigator : Deanna ("Dede") H. Olson

Wildlife and Fish2013PNW
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 researcher collects soil samples from an area burned by wildfire on the Deschutes National Forest. Jane Smith, Forest Service
ID: 83
Scientists Study the Effects of Harvesting Fire-Killed Trees

Findings help land managers fine tune their post-fire treatments to speed forest recovery process

Principal Investigator : Jane E. Smith

Resource Management and Use2012PNW
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
ID: 224
Soils in Douglas-fir plantations in the Oregon Coast Range have high rates of methane uptake

PNW scientists conducted the first study to report methane uptake rates by forest soil in the Pacific Northwest. Methane uptake was measured fiv ...

Principal Investigator : Heather Erickson

Water, Air, and Soil2010PNW
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 : Clint Wright

Wildland Fire and Fuels2013PNW
Photo of The coastal tailed frog is one of many species that likely would benefit from linked headwaters that facilitate connectivity among gene pools of subpopulations in adjacent watersheds. Loretta Ellenburg, Forest Service
ID: 343
Strategically linking headwater habitats across ridgelines benefits amphibians and management

Federal biologists, land managers, and watershed stewardship councils are interested in this new design that maintains amphibian habitat and whi ...

Principal Investigator : Deanna ("Dede") H. Olson

Resource Management and Use
Water, Air, and Soil
2011PNW
Photo of The Malone jumping slug (Hemphillia malonei) is one of seven species of jumpingslugs found in the Pacific Northwest. Robin Malone, USDA Forest Service
ID: 671
Terrestrial Mollusks Respond to Logging in Riparian Areas

Little is known about the biology and response to environmental change of native, terrestrial mollusks in the Pacific Northwest. Because of moll ...

Principal Investigator : Alex Foster

Wildlife and Fish
Resource Management and Use
2014PNW
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 A Forest Service researcher measures the diameter of a seedling in the Douglas-fir Seed Source Movement Trial at the J. Herbert Stone Nursery in Central Point, Oregon. Connie Harrington, USDA Forest Service
ID: 533
Tree Adaptation to Future Climates Involves Multiple Aspects

Genetic variation in growth phenology is a potentially important resource for mitigating some of the effects of climate change. Variation in dia ...

Principal Investigator : Connie Harrington

Resource Management and Use2013PNW
Photo of Trees can be part of a city's public health infrastructure. Rhonda Mazza, USDA Forest Service
ID: 512
Trees Found to be Part of City's Public Health Infrastructure

The emerald ash borer is associated with more than 6,000 additional lower respiratory deaths, and over 15,000 additional cardiovascular deaths i ...

Principal Investigator : Geoffrey Donovan

Invasive Species2013PNW
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
Photo of A Plant it Portland sign from the nonprofit organization, Friends of Trees, encourages Portland residence to plant trees. Rhonda Mazza, USDA Forest Service
ID: 676
Understanding What Motivates People To Plant trees Gives Insight on Environmental Justice Concerns

Urban tree-planting programs may inadvertently exacerbate environmental inequality.

Principal Investigator : Geoffrey Donovan

Resource Management and Use2014PNW
Photo of Members of the Southern Idaho Biocontrol Program help with a study to determine if releasing large numbers of flea beetles is an effective way to control leafy spurge, an invasive weed. Robert Progar, Forest Service
ID: 344
Use of insects tested to control invasive riparian weed

Leafy spurge is an invasive weed that has appeared along streams throughout much of the country. Resource managers need way to control leafy spu ...

Principal Investigator : Robert Progar

Invasive Species2011PNW
Photo of A community garden in the Seattle metro area. Kathy Wolf, USDA Forest Service
ID: 511
Washington's Green-Duwamish Watershed joins Urban Waters Federal Partnership

The Green-Duwamish Urban Waters Federal Partnership focuses on salmon recovery and environmental justice initiatives, with the added goal of cr ...

Principal Investigator : Dale Blahna

Water, Air, and Soil2013PNW