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Ecosystem

Displaying 3381 - 3400 of 6066 results

Climate change is expected to alter the frequency and severity of atmospheric conditions conducive for wildfires. In this study, we assess potential changes in fire weather conditions for the contiguous United States using the Haines Index (HI), a…
Author(s): Ying Tang, Shiyuan Zhong, Lifeng Luo, Xindi Bian, Warren Heilman, Julie Winkler
Year Published:

The use of fire as a land management tool is well recognized for its ecological benefits in many natural systems.  To continue to use fire while complying with air quality regulations, land managers are often tasked with modeling emissions from…
Author(s): Joshua C. Hyde, Eva K. Strand, Andrew T. Hudak, Dale Hamilton
Year Published:

Forest restoration efforts require thinning operations to reduce tree density, wildfire risk, or insect and disease conditions to improve ecosystem processes and function. However, one issue with the thinned stands is to dispose of the residues.…
Author(s): Deborah S. Page-Dumroese, Christopher R. Keyes, Martin F. Jurgensen, William J. Massman, Bret W. Butler
Year Published:

A new drought index termed the “soil moisture drought index (SODI)” is developed to characterize droughts. The premise of the index is based on how much water is required to attain soil moisture at field capacity. SODI captures variations of…
Author(s): Mohammad Sohrabi, Jae H. Ryu, John T. Abatzoglou, John Tracy
Year Published:

Wildfire can affect soil hydraulic properties, often resulting in reduced infiltration. The magnitude of change in infiltration varies depending on the burn severity. Quantitative approaches to link burn severity with changes in infiltration are…
Author(s): John A. Moody, Brian A. Ebel, Petter Nyman, Deborah A. Martin, Cathelijine Stoof, Randy McKinley
Year Published:

Wildfires present a complex applied risk management environment, but relatively little attention has been paid to behavioral and cognitive responses to risk among public agency wildfire managers. This study investigates responses to risk, including…
Author(s): Michael S. Hand, Matthew J. Wibbenmeyer, David E. Calkin, Matthew P. Thompson
Year Published:

Although there is acute concern that insect-caused tree mortality increases the likelihood or severity of subsequent wildfire, previous studies have been mixed, with findings typically based on stand-scale simulations or individual events. This…
Author(s): Garrett W. Meigs, John L. Campbell, Harold S. Zald, John D. Bailey, David C. Shaw, Robert E. Kennedy
Year Published:

Forests that historically burned in mixed-severity fire regimes prove difficult to manage, especially when they border homes and prized recreation areas. This management challenge was the focus of the Fuels Reduction and Restoration in Mixed-Conifer…
Author(s): Corey L. Gucker
Year Published:

Wildfire activity is predicted to increase with global climate change, resulting in longer fire seasons and larger areas burned. The emissions from fires are highly variable owing to differences in fuel, burning conditions and other external…
Author(s): Fabienne Reisen, Sandra M. Duran, Michael D. Flannigan, Catherine Elliott, Karen Rideout
Year Published:

Despite highly specialised and capable emergency management systems, ordinary citizens are usually first on the scene in an emergency or disaster, and remain long after official services have ceased. Citizens often play vital roles in helping those…
Author(s): Joshua Whittaker, Blythe McLennan, J. Handmer
Year Published:

If you are a curious reader with a knack for the analytical, you may be asking yourself, Why start a book about fire ecology with a mythological figure? And if you are a tried-and-true scientist, like we are, you may also be asking, Isn’t it a bit…
Author(s):
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Spreading fires are noisy (and potentially chaotic) systems in which transitions in dynamics are notoriously difficult to predict. As flames move through spatially heterogeneous environments, sudden shifts in temperature, wind, or topography can…
Author(s): Jerome M. Fox, George M. Whitesides
Year Published:

Very large fires (VLFs) have important implications for communities, ecosystems, air quality and fire suppression expenditures. VLFs over the contiguous US have been strongly linked with meteorological and climatological variability. Building on…
Author(s): Renaud Barbero, John T. Abatzoglou, Narasimhan K. Larkin, Crystal A. Kolden, Brian J. Stocks
Year Published:

Fire-resilient landscapes require the recurrent use of fire, but successful use of fire in previously burned areas must account for temporal fuel dynamics. We analysed factors influencing temporal fuel dynamics across a 24-year spatial…
Author(s): Christopher J. Dunn, John D. Bailey
Year Published:

Designation of safety zones is a primary duty of all wildland firefighters. Unfortunately, information regarding what constitutes an adequate safety zone is inadequately defined. Measurements of energy release from wildland fires have been used to…
Author(s): Bret W. Butler, Russell A. Parsons, William E. Mell
Year Published:

Federal fire management plans are essential implementation guides for the management of wildland fire on federal lands. Recent changes in federal fire policy implementation guidance and fire science information suggest the need for substantial…
Author(s): Marc D. Meyer, Susan L. Roberts, Robin Wills, Matthew L. Brooks, Eric M. Winford
Year Published:

Shining willow grows in wet to moist sites at middle to high elevations. It dominates many tall willow shrublands, and codominates some riparian mixed-shrublands and mixed-deciduous woodlands. It commonly associates with other willows, cottonwoods,…
Author(s): Janet L. Fryer
Year Published:

With just over 3 months remaining, it looks like 2015 could be a record-breaking year for wildfires in the United States. So far this year, more than 8.5 million acres have burned and severe fires often happen in October. For the first time, the U.S…
Author(s): Christopher Topik
Year Published:

More than a century of forest and fire management of Inland Pacific landscapes has transformed their successional and disturbance dynamics. Regional connectivity of many terrestrial and aquatic habitats is fragmented, flows of some ecological and…
Author(s): Paul F. Hessburg, Derek J. Churchill, Andrew J. Larson, Ryan D. Haugo, Carol Miller, Thomas A. Spies, Malcolm P. North, Nicholas A. Povak, R. Travis Belote, Peter H. Singleton, William L. Gaines, Robert E. Keane, Gregory H. Aplet, Scott L. Stephens, Penelope Morgan, Peter A. Bisson, Bruce E. Rieman, R. Brion Salter, Gordon H. Reeves
Year Published:

Climate change is expected to drive increased tree mortality through drought, heat stress, and insect attacks, with manifold impacts on forest ecosystems. Yet, climate-induced tree mortality and biotic disturbance agents are largely absent from…
Author(s): William R.L. Anderegg, Jeffrey A. Hicke, Rosie A. Fisher, Craig D. Allen, Juliann Aukema, Barbara J. Bentz, Sharon M. Hood, Jeremy W. Lichstein, Alison K. Macalady, Nate McDowell, Yude Pan, Kenneth F. Raffa, Anna Sala, John D. Shaw, Nathan L. Stephenson, Christina Tague, Melanie Zeppel
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