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Ecosystem

Displaying 1501 - 1520 of 6011 results

Increasing the pace and scale of fuel treatments to protect social and ecological values from severe wildfire is a major initiative of numerous land management agencies, organizations, and collaborative groups throughout the western United States,…
Author(s): Rob Addington, Brian G. Tavernia, Michael D. Caggiano, Matthew P. Thompson, Jason D. Lawhon, John S. Sanderson
Year Published:

Fire frequency has decreased in many shrub-steppe communities. Re-introducing fire may be needed to increase spatial and temporal variability in vegetation, but is often hindered by concerns of undesired vegetation shifts. These concerns arise, in…
Author(s): Kirk W. Davies, Jonathan D. Bates
Year Published:

In recent decades, as wildland fire occurrence has increased in the United States, concern about the emissions produced by wildland fires has increased as well. This growing concern is evidenced by an increase in scientific articles investigating…
Author(s): Heath D. Starns, Douglas R. Tolleson, Robert J. Agnew, Elijah G. Schnitzler, John R. Weir
Year Published:

With the effects of climate change expected to intensify over the coming century, land managers will require more proactive and novel approaches to conserve and restore threatened ecosystems. In the US Intermountain West, quaking aspen (Populus…
Author(s): Alexander A. Howe, Simon M. Landhäusser, Owen T. Burney, James N. Long, Randall D. Violett, Karen Mock
Year Published:

Elevated wildfire activity in many regions in recent decades has increased concerns about the short‐ and long‐term effects on water quantity, quality, and aquatic ecosystem health. Often, loss of canopy interception and transpiration, along with…
Author(s): Ryan J. Niemeyer, Kevin D. Bladon, Richard D. Woodsmith
Year Published:

Land managers often need to predict watershed-scale erosion rates after disturbance or other land cover changes. This study compared commonly used hillslope erosion models to simulate post-fire sediment yields (SY) at both hillslope and watershed…
Author(s): Stephanie Kampf, Benjamin Gannon, Codie Wilson, Freddy A. Saavedra, Mary Ellen Miller, Aaron Heldmyer, Ben Livneh, Peter A. Nelson, Lee H. MacDonald
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Runoff from wildfire affected areas typically carries high concentrations of fine burned residues or eroded sediment and deposits them in surface water bodies or on subsurface soils. Although the role of wildfire residues in increasing the…
Author(s): Renan Valenca, Kavita Ramnath, Timothy M. Dittrich, Robert E. Taylor, Sanjay K. Mohanty
Year Published:

Fire severity assessment is crucial for predicting ecosystem response and prioritizing post-fire forest management strategies. Although a variety of remote sensing approaches have been developed, more research is still needed to improve the accuracy…
Author(s): Raquel Montorio Llovería, Fernando Pérez-Cabello, Daniel Borini Alves, Alberto García-Martín
Year Published:

Purpose of Review: Prescribed fire escapes continue to challenge most fire and land management agencies and many communities. This article considers the issue from knowledge management (KM) and organizational learning (OL) perspectives. We review…
Author(s): Anne E. Black, P. Hayes, R. Strickland
Year Published:

The wildland-urban interface (WUI) occurs at the intersection of houses and undeveloped wildlands, where fire is a safety concern for communities, motivating investment in planning, protection, and risk mitigation. Because there is no operational…
Author(s): Brice B. Hanberry
Year Published:

Fire severity in forests is often defined in terms of post-fire tree mortality, yet the influences on tree mortality following fire are not fully understood. Pre-fire growth may serve as an index of vigour, indicating resource availability and the…
Author(s): Phillip J. van Mantgem, Donald A. Falk, Emma C. Williams, Adrian J. Das, Nathan L. Stephenson
Year Published:

Sutherland et al. (2020) used simulations from a physics-based numerical fire behaviour model to investigate the effect of the ignition protocol (namely length, direction and rate of ignition) on the spread rates measured in experimental fires. They…
Author(s): Miguel G. Cruz, Andrew L. Sullivan, Rachel Bessell, James S. Gould
Year Published:

Paleoecological records detailing fire and vegetation histories during previous interglacials are extremely rare. We present a unique, high-resolution, 10-m long record of fire from a high elevation conifer-dominated site - the Snowmastodon (Ziegler…
Author(s): R. Scott Anderson, Gonzalo Jiménez-Moreno, Monique Belanger, Christy E. Briles
Year Published:

The mountainous grassland ecosystem in Golden Gate National Park (South Africa) has post-fire ecological resilience. However, vegetation species composition and structure can alter when the ecosystem continually has uncontrolled fires. This study…
Author(s): Efosa G. Adagbasa, Samuel A. Adelabu, Tom W. Okello
Year Published:

Drought and warming increasingly are causing widespread tree die-offs and extreme wildfires. Forest managers are struggling to improve anticipatory forest management practices given more frequent, extensive, and severe wildfire and tree die-off…
Author(s): Jason P. Field, David D. Breshears, John Bradford, Darin J. Law, Xiao Feng, Craig D. Allen
Year Published:

The increasing complexity of wildland fire management highlights the importance of sound decision making. Numerous fire management decision support systems (FMDSS) are designed to enhance science and technology delivery or assist fire managers with…
Author(s): Peter Noble, Travis B. Paveglio
Year Published:

Globally, the mean abundance of terrestrial animals has fallen by 50% since 1970, and populations face ongoing threats associated with habitat loss, fragmentation, climate change and disturbance. Climate change can influence the quality of remaining…
Author(s): Holly Sitters, Julian Di Stefano
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:

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:

High severity wildfires impact hillslope processes, including infiltration, runoff, erosion, and sediment delivery to streams. Wildfire effects on these processes can impair vegetation recovery, producing impacts on headwater and downstream water…
Author(s): Ryan P. Cole, Kevin D. Bladon, Joseph W. Wagenbrenner, Drew B. R. Coe
Year Published: