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Ecosystem

Displaying 3261 - 3280 of 6066 results

Every year wildland fires affect much more acreage in the United States compared to controlled burns. Like controlled burns, wildland fire can help promote biological diversity and healthy ecosystems. But despite these facts, wildland fire is not…
Author(s): Brian Cooke
Year Published:

Risk management is being increasingly promoted as an appropriate method for addressing wildland fire management challenges. However, a lack of a common understanding of risk concepts and terminology is hindering effective application. In response,…
Author(s): Matthew P. Thompson, Tom Zimmerman, Dan Mindar, Mary A. Taber
Year Published:

One of the immediate challenges of wildfire management concerns threats to human safety and property in residential areas adjacent to non-cultivated vegetation. One approach for relieving this problem is to increase human community ‘adaptiveness’ to…
Author(s): Matthew S. Carroll, Travis B. Paveglio
Year Published:

Disturbance and succession have long been of interest in ecology, but how landscape patterns of ecosystem structure and function evolve following large disturbances is poorly understood. After nearly 25 years, lodgepole pine (Pinus contorta var.…
Author(s): Monica G. Turner, Timothy G. Whitby, Daniel B. Tinker, William H. Romme
Year Published:

The historical and presettlement relationships between drought and wildfire are well documented in North America, with forest fire occurrence and area clearly increasing in response to drought. There is also evidence that drought interacts with…
Author(s): Jeremy S. Littell, David L. Peterson, Karen L. Riley, Yongqiang Liu, Charles H. Luce
Year Published:

The provisioning of ecosystem services to society is increasingly under pressure from global change. Changing disturbance regimes are of particular concern in this context due to their high potential impact on ecosystem structure, function and…
Author(s): Rupert Seidl, Thomas A. Spies, David L. Peterson, Scott L. Stephens, Jeffrey A. Hicke
Year Published:

The Available Science Assessment Project (ASAP) leads, EcoAdapt and Oregon State University’s Institute for Natural Resources, hosted a workshop during the International Association of Wildland Fire’s 5th Fire Behavior and Fuels Conference, in…
Author(s): Corey L. Gucker
Year Published:

Soil changes associated with forest harvesting, differing utilization levels, and post-harvest prescribed burning were determined using an empirical study to investigate the long-term impacts on soil physical and chemical properties at Coram…
Author(s): Woongsoon Jang, Deborah S. Page-Dumroese, Christopher R. Keyes
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Fire regimes are ultimately controlled by wildland fuel dynamics over space and time; spatial distributions of fuel influence the size, spread, and intensity of individual fires, while the temporal distribution of fuel deposition influences fire's…
Author(s): Robert E. Keane
Year Published:

Many wildland fire models assume radiation heat transfer controls fuel particle ignition. However, evidence suggests that radiation is insufficient to ignite the predominantly small, thin fuel particles in wildlands and that convective heating by…
Author(s): Sara S. McAllister, Mark A. Finney
Year Published:

There are fundamental spatial and temporal disconnects between the specific policies that have been crafted to address our wildfire challenges. The biophysical changes in fuels, wildfire behavior, and climate have created a new set of conditions for…
Author(s): Toddi A. Steelman
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Global increases in the occurrence of large, severe wildfires in forested watersheds threaten drinking water supplies and aquatic ecology. Wildfire effects on water quality, particularly nutrient levels and forms, can be significant. The longevity…
Author(s): Monica B. Emelko, Mike Stone, Uldis Silins, Adrian L. Collins, Chris H. S. Williams, Amanda M. Martens, Kevin D. Bladon
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The interactions between climate and wildland fire are complex. To better understand these interactions, we used ArcMap 10.2.2 to examine the relationships between early spring snowmelt and total annual area burned…
Author(s): Donal S. O'Leary, Trevor D. Bloom, Jacob C. Smith, Christopher R. Zemp, Michael J. Medler
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Little is known about public tolerance of smoke from wildland fires. By combining data from two household surveys, we sought to determine whether tolerance of smoke from wildland fires varies with its origin or managerial rationale, to describe…
Author(s): Jesse M. Engebretson, Troy E. Hall, Jarod Blades, Christine Olsen, Eric Toman, Stacey S. Frederick
Year Published:

Increasing costs of wildfire management have highlighted the need to better understand suppression expenditures and potential tradeoffs of land management activities that may affect fire risks. Spatially and temporally descriptive data is used to…
Author(s): Michael S. Hand, Matthew P. Thompson, David E. Calkin
Year Published:

Wildfires shape the distribution and structure of vegetation across the inland northwestern United States. However, fire activity is expected to increase given the current rate of climate change, with uncertain outcomes. A fire impact that has not…
Author(s): Arjan J. H. Meddens, Crystal A. Kolden, James A. Lutz
Year Published:

Removal of fire-killed trees (i.e. post-fire or salvage logging) is often conducted in part to reduce woody fuel loads and mitigate potential reburn effects. Studies of post-salvage fuel dynamics have primarily used chronosequence or modelling…
Author(s): John L. Campbell, Daniel C. Donato, Joseph B. Fontaine
Year Published:

Climate change adaptation is a rapidly evolving field in conservation biology and includes a range of strategies from resisting to actively directing change on the landscape. The term ‘climate change resilience,’ frequently used to characterize…
Author(s): Nicholas A. Fisichelli, Gregor W. Schuurman, Cat Hawkins Hoffman
Year Published:

Fire is an integral component of the Earth system that will critically affect how terrestrial carbon budgets and living systems respond to climate change. Paleo and observational records document robust positive relationships between fire activity…
Author(s): A. Park Williams, John T. Abatzoglou
Year Published:

Shifts in rainfall patterns due to climate change are expected to increase drought-induced stress and mortality in forests, with widespread, negative consequences for forest productivity. Additionally, the extent, frequency and severity of natural…
Author(s): Jennifer Fraterrigo, Tyler Refsland
Year Published: