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Displaying 81 - 100 of 239

Background: There has been little quantification of the extent and duration of micrometeorological changes within a forest after airtanker drops of water-based suppressant. It has been speculated that a period of prolonged relative humidity –…
Author(s): Melanie J. Wheatley, Anne Cotton-Gagnon, Jonathan Boucher, B. Mike Wotton, Colin B. McFayden, N. Jurko, Jason Robinson
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Background: Medical services for wildland fire incidents are vital and fire personnel need to be comfortable seeking care and have adequate access to care. Aims: The aim of this study was to examine wildland firefighters’ (WLFFs) attitudes towards,…
Author(s): Mark Hoffman, Valerie J. Moody, Viktor E. Bovbjerg, Isabella Callis, Zachary Snauer
Year Published:

Background: Current guidance for implementation of United States federal wildland fire policy charges agencies with restoring and maintaining fire-adapted ecosystems while limiting the extent of wildfires that threaten life and property, weighed…
Author(s): Bradley Pietruszka, Jesse Young, Karen C. Short, Lise A. St. Denis, Matthew P. Thompson, David E. Calkin
Year Published:

Background: Due to anthropogenic climate change and historic fire suppression, wildfire frequency and severity are increasing across the western United States. Whereas the indirect effects of fire on wildlife via habitat change are well studied,…
Author(s): J. Ayars, Robbie L. Emmet, Sarah B. Bassing, Olivia Sanderfoot, Sierra Raby, Alexandra Karambelas, Eric James, Ravan Ahmadov, Beth Gardner
Year Published:

Background Native pinyon (Pinus spp.) and juniper (Juniperus spp.) trees are expanding into shrubland communities across the Western United States. These trees often outcompete with native sagebrush (Artemisia spp.) associated species, resulting in…
Author(s): Claire Williams, Lisa M. Ellsworth, Eva K. Strand, Matthew C. Reeves, Scott E. Shaff, Karen C. Short, Jeanne C. Chambers, Beth A. Newingham, Claire Tortorelli
Year Published:

This is a summary from the Selway-Bitterroot and Frank Church-River of No Return Wilderness Fire Science Workshop held June 27-28, 2023. It summarizes discussion points from the first day's breakout groups as well as some key discussion points from…
Year Published:

Structure loss is an acute, costly impact of the wildfire crisis in the western conterminous United States (“West”), motivating the need to understand recent trends and causes. We document a 246% rise in West-wide structure loss from wildfires…
Author(s): Philip E. Higuera, Maxwell C. Cook, Jennifer Balch, E. Natasha Stavros, Adam L. Mahood, Lise A. St. Denis
Year Published:

Background Increases in fire activity and changes in fire regimes have been documented in recent decades across the western United States. Climate change is expected to continue to exacerbate impacts to forested ecosystems by increasing the…
Author(s): Tzeidle N. Wasserman, Stephanie E. Mueller
Year Published:

Fire regimes are a major agent of evolution in terrestrial animals. Changing fire regimes and the capacity for rapid evolution in wild animal populations suggests the potential for rapid, fire-driven adaptive animal evolution in the Pyrocene. Fire…
Author(s): Gavin M. Jones, Joshua F. Goldberg, Taylor M. Wilcox, Lauren B. Buckley, Catherine L. Parr, Ethan B. Linck, Emily D. Fountain, Michael K. Schwartz
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The surface fire spread involved slope and wind effects are significantly important in wildland fires, while very limited attention has been paid on the heat transfer mechanism, especially for different fire line conditions. This work experimentally…
Author(s): Hanwen Guo, Dong Xiang, Yunji Gao, Yuchun Zhang
Year Published:

As the 2023 fire season rages with unprecedented intensity in Canada, millions of people and countless animals across North America are exposed to wildfire smoke. Its harmful effects on human and animal health are only beginning to be explored in…
Author(s): Michael Gross
Year Published:

Fire–vegetation feedbacks potentially maintain global savanna and forest distributions. Accordingly, vegetation in savanna and forest ecosystems should have differential responses to fire, but fire response data for herbaceous vegetation have yet to…
Author(s): Zachary J. Gold, Adam F. A. Pellegrini, Tyler Refsland, Romina J. Andrioli, Marlin L. Bowles, Dale G. Brockway, Neil D. Burrows, Augusto C. Franco, Stephen W. Hallgren, Sarah E. Hobbie, William A. Hoffmann, Kevin P. Kirkman, Peter B. Reich, Patrice Savadogo, Divino V. Silverio, Kirsten Stephan, Tercia Strydom, J. Morgan Varner, Dale D. Wade, Allan J. Wills, A. Carla Staver
Year Published:

Fire regimes are changing dramatically worldwide due to climate change, habitat conversion, and the suppression of Indigenous landscape management. Although there has been extensive work on plant responses to fire, including their adaptations to…
Author(s): Alice Michel, Jacob R. Johnson, Richard Szeligowski, Euan G. Ritchie, Andrew Sih
Year Published:

Sagebrush ecosystems in the United States have been declining since EuroAmerican settlement, largely due to agricultural and urban development, invasive species, and altered fire regimes, resulting in loss of biodiversity and wildlife habitat. To…
Author(s): Douglas J. Shinneman, Eva K. Strand, Michael L. Pellant, John T. Abatzoglou, Mark W. Brunson, Nancy F. Glenn, Julie A. Heinrichs, Mojtaba Sadegh, Nicole M. Vaillant
Year Published:

Fire regimes in sagebrush (Artemisia spp.) ecosystems have been greatly altered across the western United States. Broad-scale invasion of non-native annual grasses, climate change, and human activities have accelerated wildfire cycles, increased…
Author(s): Michele R. Crist, Rick Belger, Kirk W. Davies, Dawn Davis, James R. Meldrum, Douglas J. Shinneman, Thomas E. Remington, Justin L. Welty, Kenneth E. Mayer
Year Published:

Wildfire spread models that couple physical transport and chemical kinetics sometimes simplify or neglect gas-phase pyrolysis product oxidation chemistry. However, empirical evidence suggests that oxygen (O2) is available for gas-phase and solid-…
Author(s): Alexandra Howell, Erica Belmont, Sara S. McAllister, Mark A. Finney
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There are approximately 1.2 million firefighters in the United States. In addition to fighting fires, they also participate in various tasks including emergency rescues, providing emergency medical care, driving, operating and maintaining fire…
Author(s): Crystal D. Forester, Jay Tarley
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Large outdoor fires such as wildfires, wildland urban interface (WUI) fires, urban fires, and informal settlement fires have received increased attention in recent years. In order to develop effective emergency plans to protect people from threats…
Author(s): Negar Elhami-Khorasani, Max Kinateder, Vincent Lemiale, Sam Manzello, Ido Marom, Leorey Marquez, Sayaka Suzuki, Maria Theodori, Yu Wang, Steven Wong
Year Published:

Firebrands generated from wildfires can contribute to wildfire spread and are a threat to structures in the wildland-urban interface (WUI). Understanding the characteristics such as the firebrand size, mass and heat flux to the recipient fuel are…
Author(s): Sampath Adusumilli, David L. Blunck
Year Published:

An experimental study at a laboratory scale that aims to compare the fire behaviour in two configurations: a regular flat slope and a slope with an embedded canyon. In configurations of slope with an embedded canyon, a rapid increase in the rate of…
Author(s): André Rodrigues, Domingos Xavier Viegas, Miguel Almeida, Carlos Ribeiro, Jorge R. Raposo, Jorge André
Year Published: