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Displaying 1141 - 1160 of 5663

Environmental decision-making requires an understanding of complex interacting systems across scales of space and time. A range of statistical methods, evaluation frameworks and modeling approaches have been applied for conducting structured…
Author(s): Trent D. Penman, Brett Cirulis, Bruce G. Marcot
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:

Large and severe wildfires are an observable consequence of an increasingly arid American West. There is increasing consensus that human communities, land managers, and fire managers need to adapt and learn to live with wildfires. However, a myriad…
Author(s): Christopher J. Dunn, Christopher D. O'Connor, Jesse Abrams, Matthew P. Thompson, David E. Calkin, James D. Johnstone, Richard D. Stratton, Julie W. Gilbertson-Day
Year Published:

Policy approaches to rangelandfiremanagement may be most effective if they seek to utilize a full suite of options, including promoting the social and economic wellbeing of working ranches. One avenue for this includesthe administration of federal…
Author(s): Dennis Becker, Chloe B. Wardropper, Katherine Wollstein
Year Published:

In the western United States, mountain pine beetles (MPBs) have caused tree mortality across 7% of the forested area over the past three decades, leading to concerns of increased fire activity in MPB-affected landscapes. While fire behavior modeling…
Author(s): Sarah J. Hart, Daniel L. Preston
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:

It is sometimes assumed the sparse and low statured vegetation in arid systems would limit the effectiveness of two remote-sensing derived indices of burn severity: the difference Normalised Burn Ratio (dNBR) and relativised difference Normalised…
Author(s): Robert C. Klinger, Randy McKinley, Matthew L. Brooks
Year Published:

An important aspect of predicting future wildland fire risk is estimating fire weather-weather conducive to the ignition and propagation of fire-under realistic climate change scenarios. Because the majority of area burned occurs on a few days of…
Author(s): Piyush Jain, Mari R. Tye, Debasish Paimazumder, Michael D. Flannigan
Year Published:

Improving decision processes and the informational basis upon which decisions are made in pursuit of safer and more effective fire response have become key priorities of the fire research community. One area of emphasis is bridging the gap between…
Author(s): Francisco Rodriguez y Silva, Christopher D. O'Connor, Matthew P. Thompson, Juan Ramón Molina Martínez, David E. Calkin
Year Published:

Recovery after a wildfire is a process, both at the community or larger scale and for individuals. The United Nations Office for Disaster Risk Reduction (UNISDR) defines recovery as, “The restoring or improving of livelihoods and health, as well as…
Author(s): Tara K. McGee, Sarah M. McCaffrey, Fantina Tedim
Year Published:

Since the 1960s, canopy photography has been widely used in forestry. Hemispherical photography has been the most widely used technique, but a great drawback of this method is its perceived sensitivity to hemispherical image acquisition and…
Author(s): Francesco Chianucci
Year Published:

BACKGROUND: Fire has shaped the diversity of life on Earth for millions of years. Variation in fire regimes continues to be a source of biodiversity across the globe, and many plants, animals, and ecosystems depend on particular temporal and spatial…
Author(s): Luke T. Kelly, Katherine M. Giljohann, Andrea Duane, Núria Aquilué
Year Published:

Disturbance refugia – locations that experience less severe or frequent disturbances than the surrounding landscape – provide a framework to highlight not only where and why these biological legacies persist as adjacent areas change but also the…
Author(s): Meg A. Krawchuk, Garrett W. Meigs, Jennifer Cartwright, Jonathan D. Coop, Raymond J. Davis, Andrés Holz, Crystal A. Kolden, Arjan J. H. Meddens
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:

We measured forest-floor accumulation in ponderosa pine forests of central Oregon and asked whether selected ecological functions of the organic layer were altered by thinning and repeated burning. Experimental treatments included three thinning…
Author(s): Matt Busse, Ross Gerrard
Year Published:

We examined the seasonal distribution of lightning- and human-caused wildfires ≥ 2 ha in Canada for two time periods: 1959-2018 and 1981-2018. Furthermore, we investigated trends in seasonality, number of fires per year and number of days with fire…
Author(s): Sean C. P. Coogan, Xinli Cai, Piyush Jain, Michael D. Flannigan
Year Published:

Legacy effects from one disturbance may influence successional pathways by amplifying or buffering forest regeneration after the next disturbance. We assessed vegetation and tree regeneration in non-serotinous Sierra lodgepole pine (Pinus contorta…
Author(s): Lucas B. Harris, Stacy Drury, Alan H. Taylor
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:

Trees in dry forests often regenerate in episodic pulses when wet periods coincide with ample seed production. Factors leading to success or failure of regeneration pulses are poorly understood. We investigated the impacts of stand thinning on…
Author(s): Thomas E. Kolb, Kelsey Flathers, John Bradford, Caitlin M. Andrews, Lance A. Asherin, W.K. Moser
Year Published:

Sagebrush (Artemisia species) habitat, an intricate, species-rich mosaic of different sagebrush species and a remarkably diverse assemblage of grasses, forbs, and other shrubs, once covered about 170 million acres (69 million ha) across the Western…
Author(s): R. Kasten Dumroese
Year Published: