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Ecosystem

Displaying 3441 - 3460 of 6066 results

Fuel treatments have been widely used as an effective fire management tool to mitigate catastrophic wildland fire risk in forested landscapes. Fire research efforts of the last two decades have significantly advanced fire behavior modeling and fuel…
Author(s): Woodam Chung
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In this chapter in the book "The Ecological Importance of Mixed Severity Fires: Nature's Phoenix, the authors do not provide an encyclopedic review of the more than 450 published papers that describe some kind of effect of fire on birds. Instead,…
Author(s): Richard L. Hutto, Monica L. Bond, Dominick A. DellaSala
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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
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As the size and extent of wildfires has increased in recent decades, so has the cost and extent of post-fire management, including seeding and salvage logging. However, we know little about how burn severity, salvage logging, and post-fire seeding…
Author(s): Penelope Morgan, Marshell Moy, Christine A. Droske, Leigh B. Lentile, Sarah A. Lewis, Peter R. Robichaud, Andrew T. Hudak, Christopher Jason Williams
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Burn severity as inferred from satellite-derived differenced Normalized Burn Ratio (dNBR) is useful for evaluating fire impacts on ecosystems but the environmental controls on burn severity across large forest fires are both poorly understood and…
Author(s): Donovan Birch, Penelope Morgan, Crystal A. Kolden, John T. Abatzoglou, Gregory K. Dillon, Andrew T. Hudak, Alistair M. S. Smith
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The climate record of Priest River Experimental Forest has the potential to provide a century-long history of northern Rocky Mountain forest ecosystems. The record, which began in 1911 with the Benton Flat Nursery control weather station, included…
Author(s): Wade T. Tinkham, Robert Denner, Russell T. Graham
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Fire is widely recognized as a critical ecological and evolutionary driver that needs to be at the forefront of land management actions if conservation targets are to be met. However, the prevailing view is that prescribed fire is riskier than other…
Author(s): Dirac Twidwell, Carissa L. Wonkka, Michael T. Sindelar, John R. Weir
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Wildland fire management has risen to the forefront of land management and now receives greater social and political attention than ever before. As we progress through the 21st century, these areas of attention are continually presenting challenges…
Author(s):
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Evidence of shifting dominance among major forest disturbance agent classes regionally to globally has been emerging in the literature. For example, climate-related stress and secondary stressors on forests (e.g., insect and disease, fire) have…
Author(s): Warren B. Cohen, Zhiqiang Yang, Stephen V. Stehman, Todd A. Schroeder, David M. Bell, Jeffrey G. Masek, Chengquan Huang, Garrett W. Meigs
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Over the last two decades wildfire activity, damage, and management cost within the US have increased substantially. These increases have been associated with a number of factors including climate change and fuel accumulation due to a century of…
Author(s): David E. Calkin, Matthew P. Thompson, Mark A. Finney
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Rapid advances in cellular phone technology have transformed portable telephones into “smart” phones; powerful, portable personal computers equipped with Global Positioning System (GPS), cameras, and a suite of tools…
Author(s): Jim Riddering, Zachary A. Holden, William Matt Jolly, Allen Warren
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Downscaled climate models provide projections of how climate change may exacerbate the local impacts of natural hazards. The extent to which people facing exacerbated hazard conditions understand or respond to climate-related changes to local…
Author(s): Hannah Brenkert-Smith, James R. Meldrum, Patricia A. Champ
Year Published:

Recent increases in area burned in the western U.S. have raised concerns about the resilience of forests to large wildfires, particularly in dry mixed-conifer forests, where climate change and 20th-century land management have altered species…
Author(s): Philip E. Higuera, Kerry Kemp
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Analyses to identify and relate trends in wildfire activity to factors such as climate, population, land use or land cover and wildland fire policy are increasingly popular in the United States. There is a wealth of US wildfire activity data…
Author(s): Karen C. Short
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Several post-wildfire debris flows and other landslides occurred after the extreme wildfire season of 2003 in the southern interior of British Columbia. Such events had not been previously reported in Canada, although they are common in lower…
Author(s): Peter Jordan
Year Published:

Hazardous fuel reduction treatments conducted both through prescribed fire and mechanical means are a critical part of the mitigation of wildland fire risk in the United States. The US Federal Government has spent an average of $500t million each…
Author(s): Eric Mueller, Nick Skowronski, Kenneth L. Clark, Robert L. Kremens, Michael R. Gallagher, Jan C. Thomas, M. El Houssami, Alexander I. Filkov, Bret W. Butler, John L. Hom, William E. Mell, Albert Simeoni
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ABSTRACT Aim: Determine if differences in the climatic niche between conspecific adult and juvenile trees of the western Unites States vary by species traits and to assess if forest canopies moderate the sensitivity of juvenile trees to climatic…
Author(s): Solomon Z. Dobrowski, Alan Swanson, John T. Abatzoglou, Zachary A. Holden, Hugh Safford, Michael K. Schwartz, Daniel G. Gavin
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We develop a novel risk assessment approach that integrates complementary, yet distinct, spatial modeling approaches currently used in wildfire risk assessment. Motivation for this work stems largely from limitations of existing stochastic wildfire…
Author(s): Matthew P. Thompson, Julie W. Gilbertson-Day, Joe H. Scott
Year Published:

Ecological niche models predict plant responses to climate change by circumscribing species distributions within a multivariate environmental framework. Most projections based on modern bioclimatic correlations imply that high-elevation species are…
Author(s): Virginia Iglesias, Teresa R. Krause, Cathy L. Whitlock
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Many semi-arid plant communities in western North America are dominated by big sagebrush. These ecosystems are being reduced in extent and quality due to economic development, invasive species, and climate change. These pervasive modifications have…
Author(s): Daniel Schlaepfer, Kyle A. Taylor, Victoria E. Pennington, Kellen N. Nelson, Trace E. Martyn, Caitlin M. Rottler, William Lauenroth, John Bradford
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