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Ecosystem

Displaying 781 - 800 of 6068 results

Ecologists have long debated the relative importance of biotic interactions versus species-specific habitat preferences in shaping patterns of ecological dominance. In western North America, cycles of fire disturbance are marked by transitions…
Author(s): Addison G. Allen, Zachary P. Roehrs, R. Scott Seville, Hayley C. Lanier
Year Published:

The increasing wildfire activity and rapid population growth in the wildland–urban interface (WUI) have made more Americans exposed to wildfire risk. WUI mapping plays a significant role in wildfire management. This study used the Microsoft building…
Author(s): Alexander R. Ketchpaw, Dapeng Li, Shahid N. Khan, Yuhan Jiang, Yingru Li, Ling Zhang
Year Published:

Seed dormancy varies greatly between species, clades, communities, and regions. We propose that fireprone ecosystems create ideal conditions for the selection of seed dormancy as fire provides a mechanism for dormancy release and postfire conditions…
Author(s): Juli G. Pausas, Byron B. Lamont
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Snowpack in the western U.S. is critical for water supply and is threatened by wildfires, which are becoming larger and more common. Numerous studies have examined impacts of wildfire on snow water equivalent (SWE), but many of these studies are…
Author(s): Jeremy Giovando, Jeffrey D. Niemann
Year Published:

The impact of smoke from wildland fires on human health is currently a serious concern due to the high levels of emitted gases and particulate matter that affect populations and firefighters. In recent decades, scientific developments regarding…
Author(s): Ana Isabel Miranda
Year Published:

Spatial wildfire ignition predictions are needed to ensure efficient and effective wildfire response, and robust methods for modeling new wildfire occurrences are ever-emerging. Here, ignition locations of natural and human-caused wildfires across…
Author(s): Adrian Jimenez-Ruano, William Matt Jolly, Patrick H. Freeborn, Daniel J. Vega-Nieva, Norma A. Monjaras-Vega, Carlos I. Briones-Herrera, Marcos Rodrigues
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Critical to effective fire management is the protection and preparedness of highly trained wildland firefighters who routinely face extreme physical and psychological demands. To date, there is limited scientific evidence of psychosocial education…
Author(s): Caleb Leduc, Sabir I. Giga, Ian J. Fletcher, Michelle Young, Sandra C. Dorman
Year Published:

The continuous research and development regarding firefighters’ personal protective equipment (PPE) has led to significant improvements in recent decades. Despite the evolution of firefighters’ PPE, every year an undesirable number of firefighters…
Author(s): Gilda Santos, Rita Marques, Joao Ribeiro, Adriana Moreira, Patricia Fernandes, Margarida Silva, Andre Fonseca, Joao M. Miranda, J.B.L.M. Campos, S.F. Neves
Year Published:

Mountain snowpacks provide 53–78% of water used for irrigation, municipalities, and industrial consumption in the western United States. Snowpacks serve as natural reservoirs during the winter months and play an essential role in water storage for…
Author(s): Arielle L. Koshkin, Benjamin J. Hatchett, Anne W. Nolin
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A systematic metareview of the wildland fire system and culture within the USDA Forest Service, focused on understanding accidents and incidents between 2007-2016 and seeking to explore how knowledge of these incidents can improve the wildland fire…
Author(s):
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Characterizing pre-fire fuel load and fuel consumption are critical for assessing fire behavior, fire effects, and smoke emissions. Two approaches for quantifying fuel load are airborne laser scanning (ALS) and the Fuel Characteristic Classification…
Author(s): T. Ryan McCarley, Andrew T. Hudak, Joseph C. Restaino, Michael Billmire, Nancy H. F. French, Roger D. Ottmar, Bridget Hass, Kyle Zarzana, Tristan Goulden, Rainer Volkamer
Year Published:

Full suppression strategies remain the dominant option in wildfire management, despite a large body of research demonstrating the ecological and economic benefits of allowing unplanned wildfires to burn under favorable conditions. Consequently,…
Author(s): David J. Rossi, Olli-Pekka Kuusela, Christopher J. Dunn
Year Published:

[from the text] Our steering committee is dedicated to advancing federal policy to support wider use of prescribed fire and wildfire managed for resource benefits. Both these uses of fire are essential tools for fuel reduction, community protection…
Author(s): Courtney Schultz, Tyson Bertone-Riggs, Susan Jane Brown, Nick Goulette, S. Michelle Greiner, Dylan Kruse, Rebecca Shively, Marek K. Smith
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As the wildland–urban interface continues to expand into fire prone areas, future wildfires will likely result in the burning of more built structures, such as the recent Marshall Fire in Colorado, which increases the complexity of the wildfire…
Author(s): Alice Gilliland, Tim Watkins
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Earlier this year, the U.S. Department of Agriculture and the U.S. Forest Service released a new 10-year plan, Confronting the Wildfire Crisis: A Strategy for Protecting Communities and Improving Resilience in America’s Forests, to substantially…
Author(s): Josh McDaniel, David E. Calkin, Justin S. Crotteau, Mark A. Finney, Sim Larkin, Michael Johnston, Serra Hoagland, Dylan Johnson, Sarah M. McCaffrey, John Squires, Shawn P. Urbanski
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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Warming temperatures and changing weather patterns are causing more frequent and severe disturbances in western North American forests. The increasing length and severity of recent wildfire seasons have annually caused widespread injury to millions…
Author(s): Katherine A. Kitchens, Lucas Peng, Lori D. Daniels, Allan L. Carroll
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Sagebrush ecosystems of western North America are threatened by invasive annual grasses and wildfires that can remove fire-intolerant shrubs for decades. Fuel reduction treatments are used ostensibly to aid in fire suppression, conserve wildlife…
Author(s): David A. Pyke, Scott E. Shaff, Jeanne C. Chambers, Eugene Schupp, Beth A. Newingham, Margaret L. Gray, Lisa M. Ellsworth
Year Published:

Many ecologically important high elevation five-needle white pine (HEFNP) forests that historically dominated upper subalpine landscapes of western North America are now being impacted by mountain pine beetle (Dendroctonus spp.) outbreaks, the…
Author(s): Robert E. Keane, Anna W. Schoettle, Diana F. Tomback
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A microscale wildfire model, QES-Fire, that dynamically couples the fire front to microscale winds was developed using a simplified physics rate of spread (ROS) model, a kinematic plume-rise model and a mass-consistent wind solver. The model is…
Author(s): Matt Moody, Jeremy A. Gibbs, Steven K. Krueger, Derek V. Mallia, Eric Pardyjak, Adam K. Kochanski, Brian N. Bailey, Rob Stoll
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