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Displaying 141 - 160 of 1089

Climate change has lengthened wildfire seasons and transformed fire regimes throughout the world. Thus, capturing fuel and fire dynamics is critical for projecting Earth system processes in warmer and drier future. Recent advances in fire regime…
Author(s): Erin J. Hanan, Maureen C. Kennedy, Jianning Ren, Morris C. Johnson, Alistair M. S. Smith
Year Published:

Of all terrestrial biomes, grasslands are losing the most biodiversity the most rapidly, so there is a critical need to document and learn from large-scale restoration successes. In the Loess Canyons ecoregion of the Great Plains, USA, an…
Author(s): Caleb P. Roberts, Rheinhardt Scholtz, Dillon T. Fogarty, Dirac Twidwell, Thomas L. Jr. Walker
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In ecosystems where trees and grasses coexist, some grass species are found only in open habitats and others persist under trees. The persistence of shade intolerant grasses in ecosystems such as open woodlands and savannas depends on recurrent…
Author(s): Xiulin Gao, Dylan W. Schwilk
Year Published:

Anticipating fire behavior as climate change and fire activity accelerate is an increasingly pressing management challenge in fire-prone landscapes. In subalpine forests adapted to infrequent, stand-replacing fire, self-limitation of burn severity…
Author(s): Kristin H. Braziunas, Diane Abendroth, Monica G. Turner
Year Published:

In fire-dependent forest landscapes, frequent low- to moderate-severity fire maintained vegetation patterns that limited the severity of droughts, wildfires, and insect and pathogen activity. More than a century of fire exclusion, in combination…
Author(s): R. Keala Hagmann, Paul F. Hessburg, R. Brion Salter, Andrew G. Merschel, Matthew J. Reilly
Year Published:

Mechanical mastication is a fuel management strategy that modifies vegetation structure to reduce the impact of wildfire. Although past research has quantified immediate changes to fuel post-mastication, few studies consider longer-term fuel…
Author(s): Bianca J. Pickering, Jamie Burton, Trent D. Penman, Madeleine A. Grant, Jane G. Cawson
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We evaluated the effects of postfire management on forest structure in mixed-conifer forests of northeastern Washington, USA. Postfire treatments were harvest-only, harvest combined with planting, planting-only, and postfire prescribed fire. We used…
Author(s): C. Alina Cansler, Van R. Kane, Bryce N. Bartl-Geller, Derek J. Churchill, Paul F. Hessburg, Nicholas A. Povak, James A. Lutz, Jonathan T. Kane, Andrew J. Larson
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Restoration goals in fire-prone conifer forests include mitigating fire hazard while restoring forest structural components linked to disturbance resilience and ecological function. Restoration of overstory spatial pattern in forests often falls…
Author(s): Jeffery B. Cannon, Katarina J. Warnick, Spencer Elliott, Jennifer S. Briggs
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Background: Wildfires are important global disturbances influencing ecosystem structure and composition. The moisture content of living and senescent plant components are key determinants of wildfire activity, yet our understanding of how seasonal…
Author(s): Tegan P. Brown, Zachary Hoylman, Elliot T. Conrad, Zachary A. Holden, Kelsey Jencso, William Matt Jolly
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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:

As climatic changes continue to drive increases in the frequency and severity of forest fires, it is critical to understand all of the factors influencing the risk of forest fire. Using a spatial dataset of areas burnt over a 65 year period in a 528…
Author(s): Philip Zylstra, S. Don Bradshaw, David B. Lindenmayer
Year Published:

Increasing wildfire activity has spurred ecological resilience-based management that aims to reduce the vulnerability of forest stands to wildfire by reducing the probability of crown fire. Targeted grazing is increasingly being used to build forest…
Author(s): Victoria M. Donovan, Caleb P. Roberts, Dillon T. Fogarty, David A. Wedin, Dirac Twidwell
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
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The increasing incidence of wildfires across the southwestern United States (US) is altering the contemporary forest management template within historically frequent-fire conifer forests. An increasing fraction of southwestern conifer forests have…
Author(s): Jens T. Stevens, Collin M. Haffey, Jonathan D. Coop, Paula J. Fornwalt, Larissa L. Yocom, Craig D. Allen, Anne F. Bradley, Owen T. Burney, Dennis Carril, Marin Chambers, Teresa B. Chapman, Sandra L. Haire, Matthew D. Hurteau, Jose M. Iniguez, Ellis Q. Margolis, Christopher Marks, Laura A. Marshall, Kyle Rodman, Camille Stevens-Rumann, Andrea E. Thode, Jessica J. Walker
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Non‐native, invasive Bromus tectorum (cheatgrass) is pervasive in sagebrush ecosystems in the Great Basin ecoregion of the western United States, competing with native plants and promoting more frequent fires. As a result, cheatgrass invasion likely…
Author(s): R. Chelsea Nagy, Emily J. Fusco, Jennifer Balch, John T. Finn, Adam L. Mahood, Jenica M. Allen, Bethany A. Bradley
Year Published:

Suppression of historic fire regimes in North America has altered successional stages and shifted vegetation communities, negatively impacting wildlife diversity in forests. Prescribed fire is often used to increase habitat for wildlife populations…
Author(s): Dana J. Morin, Laurel Schablein, Nikole Simmons, Jean Lorber, Marek K. Smith
Year Published:

Great Basin shrublands in the United States are rapidly converting to annual grass- dominated ecosystems, driven primarily by increased wildfire activity. Post-fire vegetation recovery trajectories vary spatially and temporally and are influenced by…
Author(s): Jody Vogeler, Eric Jensen, Beth A. Newingham
Year Published:

ive foliage for some tree and shrub species can support flaming fire spread at much higher moisture content than dead fuel materials. However, the role of live fuels in forest fires has been controversial in the past decades. Although ignition and…
Author(s): Adnan Darwish Ahmad, Ahmad M. Abubaker, Ahmad Salaimeh, Nelson K. Akafuah, Mark A. Finney, Jason M. Forthofer, Kozo Saito
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Computational models of wildfires are necessary for operational prediction and risk assessment. These models require accurate spatial fuel data and remote sensing techniques have ability to provide high spatial resolution raster data for landscapes…
Author(s): Ritu Taneja, J. E. Hilton, Luke Wallace, Karin J. Reinke, Simon D. Jones
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Questions: Relative to a landscape with a mosaic of two sagebrush community types and increasing fire frequency, we asked: 1) Do vegetation characteristics vary significantly with number of times burned for each sagebrush community? 2) How do…
Author(s): Douglas J. Shinneman, Susan K. McIlroy, Marie-Anne de Graaff
Year Published: