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NWFSC Research Brief #9: Wildfire impacts on spring Chinook Salmon: Habitat quality in the Wenatchee River sub-basin

Year of Publication
2016
Product Type

In this study, researchers developed models of freshwater habitat for spring Chinook Salmon in pre- and post-fire scenarios in the Wenatchee River sub-basin of central Washington, where a large number of wildfires have occurred in the past 30 years. They predicted changes in in-stream wood, sediment, and water temperature as a result of wildfires and modeled their influence on habitat quality for three life stages (egg/fry, juvenile, and adult) of spring Chinook Salmon. They also compared their model results with the current and historic distribution of spring Chinook Salmon to better understand if decreasing populations are distributed in ways that correlate with fire impacts on habitats.

NWFSC Research Brief #8: Cumulative disturbances on the landscape: Lessons from the Pole Creek fire, Oregon

Year of Publication
2016
Product Type

Previous research has focused on quantifying fuel loadings and using operational fire behavior models to understand changes in fire severity following MPB outbreaks. In this study however, researchers used direct field measurements taken from the 2012 Pole Creek Fire that burned in lodgepole pine forests in central Oregon’s Eastern Cascade Mountains, which had experienced a MPB epidemic 8-15 years prior to the fire. They examined the combined effects of MPB and fire disturbances on stand structure, and investigated the influence of previous MPB severity and fire weather on subsequent fire severity and cumulative disturbance severity.

NWFSC Research Brief #7: Communication Under Fire: Communication Efficacy During Wildfire Incidents

Year of Publication
2016
Product Type

In this study, researchers analyzed the influence of pre-incident familiarity, stakeholder affiliation, and primary wildfire response/functional role on communication frequency and efficacy during three western U.S. wildfires ignited on U.S. Forest Service land. All fires occurred in wildland/urban interface areas, and involved a range of parties including Type 1 Incident Management Team response teams, local forest leaders, and responding agencies.

NWFSC Research Brief #6: Restoring the West: Forest Restoration Needs in Oregon and Washington

Year of Publication
2015
Product Type

In this study, researchers investigated the extent of forest restoration needed to move present day forests towards a NRV across fire-adapted landscapes in eastern Washington, eastern Oregon, and southwestern Oregon. They assessed forest vegetation restoration needs for over 28 million acres of forest based on the distribution of different forest types (e.g., Dry Mixed Conifer vs. Moist Mixed Conifer) and the current relative abundance of structural classes (see below) compared to NRV reference conditions. Using this approach, researchers determined which structural classes were overrepresented and underrepresented in each landscape unit. They then evaluated which of several different treatment or restoration categories (‘Disturbance Only’, ‘Disturbance then Succession’, and ‘Succession Only’) could transition acres to structural classesthat would restore a distribution of classes to within the NRV reference conditions.

NWFSC Research Brief #5: Influences on Wildfire Burn Severity: Treatment and landscape drivers in an extreme fire event

Year of Publication
2014
Product Type

In this study, researchers analyzed how previous management effortsand other factors including weather and landform influenced burn severityduring the 2006 Tripod Complex Fires, which at the time represented thelargest wildfire event in over 50 years in the state of Washington. The TripodComplex burned over 170,000 acres of mixed-conifer forests, including 387past harvest and fuel-treatment units. By evaluating differences in burn severityin areas with and without harvest and fuel treatments, as well as between areaswith different landform, vegetation, insect outbreak, and weather duringburning, researchers evaluated the relative influence of these drivers on burnseverity during the fire.

NWFSC Research Brief #4: Mountain Pine Beetle and Fire Behavior - Fuel dynamics in south central Oregon lodgepole pine

Year of Publication
2014
Product Type

To determine the influences of mountain pine beetle epidemics in lodgepole pine forests in south-central Oregon, researchers looked at how ground, surface, ladder, and crown fuels change over time in response to beetle epidemics, and how these epidemics influence current and future fire behavior. By looking at similar stands of varying ages researchers documented changes in stand development and fuels over time and developed a chronosequence covering a range of post-beetle epidemic conditions. Fire behavior was determined at multiple scales using several standard fuel models.

NWFSC Research Brief #3: Songbird response to wildfire-Species abundance after a southwest oregon wildfire

Year of Publication
2014
Product Type

In this study, researchers gathered vegetation and songbird abundance data in the Little Applegate Valley of Jackson County, Oregon. After one year of data collection, a portion of the study area experienced a 6,177-acre mixed-severity wildfire (23% low, 36% moderate, 42% high severity). To better understand how the wildfire affected songbird abundance, they continued to collect data in the burned area as well as an unburned control area for four years after the wildfire.

NWFSC Research Brief #2: Private Forest Owners and Wildfire Risk: Policy Implications in a Diverse Population

Year of Publication
2014
Product Type

To better understand NIPF owners, and subsequently the types of policies that are most likely to engage them in fuel mitigation strategies, researchers at the USFS Pacific Northwest Research Station and Oregon State University surveyed and interviewed private forest landowners living in fire-prone forests in eastern and central Oregon. Over 500 survey responses and 60 one-on-one interviews with NIPF owners helped the research team better understand different types of landowners, their distinct motivations, and policy suitabilities for hazardous fuels reduction.

NWFSC Research Brief #1: Traversing Through the Haze - Exploring the Human Perspective of Smoke from Fire

Year of Publication
2013
Product Type

How does this smoke affect people? Do people know where the smoke comes from and does such knowledge affect their attitude towards it? Do concerns about smoke preclude the use of prescribed fire? Gaining insight into public attitudes toward smoke is important in making decisions regarding its management. To investigate these questions, we conducted a mail survey of households in four sites across the US in 2012. Nearly 1000 people responded to the survey.