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Ecosystem

Displaying 1501 - 1520 of 6068 results

One goal of fuels treatments is to limit potential fire behavior by reducing overstory tree density, but this may precipitate regeneration, which contributes to increasing potential fire behavior over time. To understand factors that influence tree…
Author(s): Kathleen Fialko, Seth A. Ex, Brett Wolk
Year Published:

Air quality impacts from wildfires have been dramatic in recent years, with millions of people exposed to elevated and sometimes hazardous fine particulate matter (PM 2.5 ) concentrations for extended periods. Fires emit particulate matter (PM) and…
Author(s): Daniel A. Jaffe, Susan M. O'Neill, Narasimhan K. Larkin, Amara L. Holder, David L. Peterson, Jessica E. Halofsky, Ana G. Rappold
Year Published:

Riparian forests link terrestrial and freshwater communities and therefore understanding the landscape context of fire regimes in these forests is critical to fully understanding the landscape ecology. However, few direct studies of fire regimes…
Author(s): Grant Harley, Emily K. Heyerdahl, James D. Johnston, Diana L. Olson
Year Published:

Using a naturalistic quasi-experimental design and growth curve modeling techniques, a recently proposed climate change risk perception model was replicated and extended to investigate changes in climate change risk perception and climate policy…
Author(s): Karine Lacroix, Robert Gifford, Jonathan Rush
Year Published:

Aims: Wildfires in dry forest ecosystems in western North America are producing fire effects that are more severe than historical estimates, raising concerns about the resilience of these landscapes to contemporary disturbances. Despite increasing…
Author(s): William M. Downing, Meg A. Krawchuk, Jonathan D. Coop, Garrett W. Meigs, Sandra L. Haire, Ryan B. Walker, Ellen Whitman, Geneva W. Chong, Carol Miller, Claire Tortorelli
Year Published:

Given the recent history of frequent and extensive late dry season wildfire in Australia’s fire-prone northern savannas, regional conservation-based fire management programs typically aim to mitigate wildfire through the use of strategic prescribed…
Author(s): Jay Evans, Jeremy Russell-Smith
Year Published:

Fire can be extremely harmful to sensitive ecosystems such as rainforests while maintaining the structure and composition of savanna environments. That is because historically, rainforest species have not been subjected to recurring fires requiring…
Author(s): Christian N. Berlinck, Eugênia Kelly Luciano Batista
Year Published:

Recent decades have witnessed an escalation in the social, economic, and ecological impacts of wildfires worldwide. Wildfire losses stem from the complex interplay of social and ecological forces at multiple scales, including global climate change,…
Author(s): Ronald L. Schumann, Miranda H. Mockrin, Alexandra D. Syphard, Joshua Whittaker, Owen F. Price, Cassandra Johnson-Gaither, Christopher T. Emrich, Van Butsic
Year Published:

In the present experiment we evaluated the impact of rapid heat stress on decision-making and neural function. Previous work has demonstrated that heat stress has an impact on cognitive and neural function. Here, we hypothesized that a rapid…
Author(s): Cory J. Coehoorn, Lynneth A. Stuart-Hill, Wande Abimbola, J. Patrick Neary, Olave E. Krigolson
Year Published:

Natural disasters are inherently traumatic. The unexpected, unpredictable, threatening, and overwhelming nature of these events can be destabilising and distressing, potentially leading to psychological trauma (Substance Abuse & Mental Health…
Author(s): Sancia West, Denis C. Visentin, Amanda Neil, Grad Dip, Rachel Kornhaber, Valerie Ingham, Michelle Cleary
Year Published:

For the physical model of wildland fire spread, errors or discrepancies in the prediction of spread rate may arise from uncertain, imprecise or improper determinations of the model parameters due to unreasonable assumptions, rough approximations, or…
Author(s): Xieshang Yuan, Naian Liu, Xiaodong Xie, Domingos Xavier Viegas
Year Published:

The Wildfire Research Center (WiRe Center) works with wildfire practitioners seeking to create communities that are adapted to wildfire using an evidenced-based approach. Historically, immediate threats and wildfire suppression have garnered much…
Author(s): Hannah Brenkert-Smith, Patricia A. Champ, Jonathan Riley, Christopher M. Barth, Colleen Donovan, James R. Meldrum, Carolyn Wagner
Year Published:

The relationship between wildland fire spread rate and wind has been a topic of study for over a century, but few laboratory studies report measurements in controlled winds exceeding 5 m s−1. In this study, measurements of fire rate of spread, flame…
Author(s): Bret W. Butler, Steve Quarles, Christine Standohar-Alfano, Murray Morrison, Daniel M. Jimenez, Paul Sopko, Cyle E. Wold, Larry S. Bradshaw, Loren Atwood, Justin Landon, Joseph J. O'Brien, Benjamin Hornsby, Natalie S. Wagenbrenner, Wesley G. Page
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Background: This paper describes Fires of Change, a collaborative art exhibit designed to communicate about the shifting fire regimes of the United States Southwest through the lens of multimedia art. The Southwest Fire Science Consortium and…
Author(s): Melanie M. Colavito, Barbara S. Wolfson, Andrea E. Thode, Collin M. Haffey, Carolyn Kimball
Year Published:

Post-incident studies provide direct and valuable information to further the scientific understanding of Wildland-Urban Interface (WUI) fires. Most post-incident studies involve data collection in the field (i.e. a 'research field deployment'). In…
Author(s): Benjamin Gaudet, Albert Simeoni, Steven M. V. Gwynne, Erica D. Kuligowski, Noureddine Bénichou
Year Published:

The increasing amount of high-severity wildfire in historical low and mixed-severity fire regimes in western US forests has created a need to better understand the ecological effects of different post fire management approaches. For three different…
Author(s): Morris C. Johnson, Maureen C. Kennedy, Sarah C. Harrison, Derek J. Churchill, James Pass, Paul W. Fischer
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:

Spotting during wildfires can significantly influence the way wildfires spread and reduce the chances of successful containment by fire crews. However, there is little published empirical evidence of the phenomenon. In this study, we have analysed…
Author(s): Michael A. Storey, Owen F. Price, Ross A. Bradstock, J. Sharples
Year Published:

Multiple, simultaneous environmental changes, in climatic/abiotic factors, interacting species, and direct human influences, are impacting natural populations and thus biodiversity, ecosystem services, and evolutionary trajectories. Determining…
Author(s): William F. Morris, Johan Ehrlén, Johan P. Dahlgren, Alexander K. Loomis, Allison M. Louthan
Year Published:

The unprecedented 2015 wildfire season in northern Saskatchewan, Canada resulted in the largest evacuation in the province's history. The depiction of such environmental hazards in the news media is one mechanism that can, even inadvertently,…
Author(s): Heidi M. Walker, Maureen G. Reed, Amber J. Fletcher
Year Published: