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Displaying 1161 - 1180 of 5663

Local and regional species extirpations may become more common as changing climate and disturbance regimes accelerate species’ in situ range contractions. Identifying locations that function as both climate and disturbance refugia is critical for…
Author(s): William M. Downing, James D. Johnston, Meg A. Krawchuk, Andrew G. Merschel, Joseph H. Rausch
Year Published:

Bark beetles are primary disturbance agents in western US forests. Outbreaks affect goods and services associated with forest ecosystems including timber, water, fish and wildlife habitats and populations, recreation opportunities, and many others.…
Author(s): Daniel W. McCollum, John E. Lundquist
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In 2018, Fire Management Today carried an article on smoke exposure (6 Minutes for Safety 2018). The article describes actions you can take to mitigate smoke exposure and techniques for reducing the exposure of firefighters to heavy smoke. The…
Author(s): Randall C. Thomas
Year Published:

The 2001 Forest Service Roadless Rule prohibits roadbuilding in forests across an area equivalent to the combined states of New York and Maine (236 000 km2). There have been recent assertions that roads are needed to prevent fire and to keep forests…
Author(s): Sean P. Healey
Year Published:

After a more than a century of fighting to keep fire out of forests, reintroducing it is now an important management goal. Yet changes over the past century have left prescribed burning with a big job to do. Development, wildfire suppression, rising…
Author(s): Sylvia Kantor, Becky K. Kerns, Michelle A. Day
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Because wildfires don’t stop at ownership boundaries, managers from governmental and nongovernmental organizations in Northern Colorado are taking steps to pro-actively “co-manage” wildfire risk through the Northern Colorado Fireshed Collaborative (…
Author(s): Tony S. Cheng, Michael D. Caggiano
Year Published:

With increasing heat and droughts world-wide, wildfires are becoming a more serious global threat to the world’s population. Wildfire smoke is composed of approximately 80% to 90% of fine (<2.5 um) and ultrafine (<1 um) particulate matter (PM…
Author(s): Mary M. Prunicki, Christopher C. Dant, Shu Cao, Holden Maecker, Francois Haddad, Juyong Brian Kim, Michael Snyder, Joseph Wu, Kari Nadeau
Year Published:

The extent of severely burned landscapes are increasing in the Western US due to climate change and altered forest states. Directly after a wildfire, managers implement techniques to stabilize soils or harvest merchantable timber. Collaborating with…
Author(s): Henry S. Grover, Matthew A. Bowker
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We integrated a widely used forest growth and management model, the Forest Vegetation Simulator, with the FSim large wildfire simulator to study how management policies affected future wildfire over 50 years on a 1.3 million ha study area comprised…
Author(s): Alan A. Ager, Ana M. G. Barros, Rachel M. Houtman, Robert C. Seli, Michelle A. Day
Year Published:

In frequent‐fire forests, wildland fire acts as a self‐ regulating process creating forest structures that consist of a fine‐grained mosaic of isolated trees, tree groups of various sizes, and non‐treed openings. Though the self‐regulation of forest…
Author(s): Scott M. Ritter, Chad M. Hoffman, Michael A. Battaglia, Camille Stevens-Rumann, William E. Mell
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Most regulatory and certification agencies in Canada now require forest management plans to include some level of historical fire pattern approximation. As a result, sustainable forest management and enhancements to existing fire management policies…
Author(s): Ignacio San-Miguel, Nicholas C. Coops, Raphael D. Chavardes, David W. Andison, Paul D. Pickell
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Salvage logging in burned forests can negatively affect habitat for white-headed woodpeckers (Dryobates albolarvatus), a species of conservation concern, but also meets socioeconomic demands for timber and human safety. Habitat suitability index (…
Author(s): Quresh Latif, Victoria A. Saab, Jonathan G. Dudley, Amy Markus, Kim Mellen-McLean
Year Published:

With recent and predicted increases in the frequency and intensity of wildfires, there is a pressing need for mitigation strategies to reduce the impacts of wildfires on human lives, infrastructure and biodiversity. One strategy involves the use of…
Author(s): Brad R. Murray, Colin Brown, Megan L. Murray, Daniel W. Krix, Leigh J. Martin, Thomas Hawthorne, Molly I. Wallace, Summer A. Potvin, Jonathan K. Webb
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Fuels reduction treatments to mitigate fire behavior are common in ponderosa pine ecosystems of the western United States. While initial impacts of fuel treatments have been reported, less is known about treatment longevity as live and dead fuels…
Author(s): Sharon M. Hood, Christopher R. Keyes, Katelynn J. Bowen, Duncan C. Lutes, Carl A. Seielstad
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Fire is a natural element of the landscape and thus, the environment would be different as we know it without its presence. Fire is accepted as a vital force in shaping biomes and, to some extent, has allowed us to persist through time and became '…
Author(s): Miriam Muñoz-Rojas, Paulo Pereira
Year Published:

We examined the effects of two recent, high-severity disturbances on seed dispersal and conifer seedling establishment in a subalpine spruce-fir forest in the San Juan Mountains, Colorado. Our study area had undergone high forest mortality from a…
Author(s): Amanda R. Carlson, Jason S. Sibold, Jose F. Negron
Year Published:

One of Jonathan Coop's first vivid memories as a child was watching the flames of the 1977 La Mesa Fire in north-central New Mexico. The human-caused fire burned more than 15,000 acres of pine forests in the Bandelier National Monument and areas…
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Spot fires caused by lofted embers (i.e., firebrands) can be a significant factor in the spread of wildland fires. Embers can be especially dangerous near the wildland urban interface (WUI) because of the potential for the fire to be spread near or…
Author(s): David L. Blunck, Bret W. Butler, John D. Bailey, Natalie S. Wagenbrenner
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By suppressing all wildfires and incessantly burning fossil fuels, humans have upset the role that fire has historically played in providing ecological balance. We need to rethink our view of fire and accept its presence by changing how we manage…
Author(s): Stephen Pyne
Year Published:

Background tree mortality is a complex process that requires large sample sizes and long timescales to disentangle the suite of ecological factors that collectively contribute to tree stress, decline, and eventual mortality. Tree mortality…
Author(s): Tucker J. Furniss, Andrew J. Larson, Van R. Kane, James A. Lutz
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