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Fire suppression and the loss of western white pine (WWP) have made northern Rocky Mountain moist mixed-conifer forests less disturbance resilient. Although managers are installing hundreds of plantations, most of these plantations have not…
Author(s): Theresa B. Jain, Andrew S. Nelson, Benjamin C. Bright, John C. Byrne, Andrew T. Hudak
Year Published:

In fire-prone forests, postfire tree recovery may be limited by climate conditions and fire activity that exceed the range of conditions under which these forests evolved, leading to major shifts in forest structure and composition. Transformations…
Author(s): Tyler J. Hoecker, Monica G. Turner
Year Published:

Maximizing the effectiveness of fuel treatments at the landscape scale is a key research and management need given the inability to treat all areas at risk from wildfire, and there is a growing body of scientific literature assessing this need. We…
Author(s): Theresa B. Jain, Ilana L. Abrahamson, Nathaniel Anderson, Sharon M. Hood, Brice B. Hanberry, Francis F. Kilkenny, Shawn T. McKinney, Jeffrey E. Ott, Alexandra K. Urza, Jeanne C. Chambers, Michael A. Battaglia, J. Morgan Varner, Joseph O’Brien
Year Published:

Analyses of the effects of topography, weather, land management, and fuel on fire severity are increasingly common, and generally apply fire severity indices derived from satellite optical remote sensing. However, these indices are commonly…
Author(s): Matthew G. Gale, Geoffrey J. Cary
Year Published:

Background: Low-severity prescribed fire is an important tool to manage fire-maintained forests across North America. In dry conifer forests of the western USA, prescribed fire is often used to reduce fuel loads in forests characterized historically…
Author(s): Victoria A. Saab, Quresh Latif, William M. Block, Jonathan G. Dudley
Year Published:

Wildfire occurrence and severity is predicted to increase in the upcoming decades with severe negative impacts on human societies. The impacts of upwind wildfire activity on glacier melt, a critical source of freshwater for downstream environments,…
Author(s): Caroline Aubry-Wake, André Bertoncini, John W. Pomeroy
Year Published:

Background: Recent increases in wildfire activity in the Western USA are commonly attributed to a confluence of factors including climate change, human activity, and the accumulation of fuels due to fire suppression. However, a shortage of long-term…
Author(s): Gabrielle Boisrame, Timothy J. Brown, Dominique Bachelet
Year Published:

Payments for watershed services (PWS) programs are becoming a popular governance approach in the western United States (US) to fund forest management aimed at source water protection. In this paper we conduct a cost-benefit analysis (CBA) of one of…
Author(s): Kelly W. Jones, Benjamin Gannon, Thomas Timberlake, James L. Chamberlain, Brett Wolk
Year Published:

The revitalization of cultural burning is a priority for many Native American tribes and for agencies and organizations that recognize the cultural and ecological importance of this practice. Traditional fire practitioners are working to resist the…
Author(s): Chris Adlam, Diana Almendariz, Ron Goode, Deniss Martinez, Beth Rose Middleton
Year Published:

Wildfire extent and their impacts are increasing around the world. Fire management agencies use fire behaviour simulation models operationally (during a wildfire event) or strategically for risk assessment and treatment. These models provide…
Author(s): Trent D. Penman, Sarah C. McColl-Gausden, Brett Cirulis, D. Kultaev, Dan Ababei, Lauren T. Bennett
Year Published:

Understanding naturally occurring pine regeneration dynamics in response to thinning and burning treatments is necessary not only to measure the longevity of the restoration or fuels treatment, but also to assess how well regeneration meets forest…
Author(s): Tzeidle N. Wasserman, Amy E. M. Waltz, John Paul Roccaforte, Judith D. Springer, Joseph E. Crouse
Year Published:

A combined imaging system that can monitor the visible flame, invisible hot flow, flame temperature and surface temperature was developed to investigate the combustion of wooden rods inclined at 30° under forced air flow. A micro wind tunnel is…
Author(s): Yufeng Lai, Xiao Wang, Thomas B.O. Rockett, Jon R. Willmott, Yang Zhang
Year Published:

Wildfires emit smoke particles and gaseous pollutants that greatly aggravate air quality and cause adverse health impacts in the western US (WUS). This study evaluates how wildfire impacts on air pollutants and air toxics evolve from the present…
Author(s): Cheng-En Yang, Joshua S. Fu, Yongqiang Liu, Xingyi Dong, Yang Liu
Year Published:

The COVID-19 global pandemic created dramatic change in nearly every facet of life, including how the Forest Service worked to fulfill its mission despite facing multiple unknowns fraught with risks. Preparing for and responding to wildland fire…
Author(s): Matthew P. Thompson, Donald G. MacGregor, David E. Calkin, Joel O. Iverson
Year Published:

Night-time provides a critical window for slowing or extinguishing fires owing to the lower temperature and the lower vapour pressure deficit (VPD). However, fire danger is most often assessed based on daytime conditions1,2, capturing what promotes…
Author(s): Jennifer Balch, John T. Abatzoglou, Maxwell B. Joseph, Michael J. Koontz, Adam L. Mahood, Joe McGlinchy, Megan E. Cattau, A. Park Williams
Year Published:

Fire is a key determinant of vegetation structure and composition in ecosystems worldwide and is therefore an important management tool. The “pyrodiversity hypothesis”, which postulates that biodiversity will increase as fire diversity increases,…
Author(s): Michael D. Ulyshen, J. Kevin Hiers, Scott M. Pokswinksi, Conor Fair
Year Published:

Aim Wildfire activity in recent years is notable not only for an expansion of total area burned but also for large, single-day fire spread events that pose challenges to ecological systems and human communities. Our objectives were to gain new…
Author(s): Jonathan D. Coop, Sean A. Parks, Camille Stevens-Rumann, Scott M. Ritter, Chad M. Hoffman
Year Published:

This is the second part of a series of two papers concerning fire-spotting generated fires. While, in the first part, we focus on the impact of macro-scale factors on the growth of the burning area by considering the atmospheric stability conditions…
Author(s): Vera N. Egorova, Andrea Trucchia, Gianni Pagnini
Year Published:

Objectives: The increase in global wildland fire activity has accelerated the urgency to understand health risks associated with wildland fire suppression. The aim of this project was to identify occupational health research priorities for wildland…
Author(s): Chelsea A. Pelletier, Christopher Ross, Katherine Bailey, Trina Fyfe, Katie Cornish, Erica Koopmans
Year Published:

There is a general agreement within the wildfire community that exclusively top–down approaches to policy making and management are limited and that we need to build governance capacity to cooperatively manage across jurisdictional boundaries.…
Author(s): Branda Nowell, Toddi A. Steelman, Anne-Lise Knox Velez, Kate Albrecht
Year Published: