Search by keywords, then use filters to narrow down results by type, year, topic, or ecosystem.

Displaying 841 - 860 of 5348

The ability to map fire severity is a requirement for fire management agencies worldwide. The development of repeatable methods to produce accurate and consistent fire severity maps from satellite imagery is necessary to document fire regimes, to…
Author(s): Luke Collins, Greg McCarthy, Andrew Mellor, Graeme Newell, Luke Smith
Year Published:

The dynamics of wood crib fires were investigated under fire whirl (FW) and free burning (FB) conditions in a small-scale apparatus. For open-packed cribs, the burning rates and fire spread rates of the FB and FW cribs were almost identical. However…
Author(s): Monica T. Diab, Jan B. Haelssig, Michael J. Pegg
Year Published:

A substantial proportion of Italian students are unaware of the connection between what they learn at school and their work opportunities .This proportion would most likely increase if data were collected today, given the generation of a broad range…
Author(s): Stefania Amici, Marek Tesar
Year Published:

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:

Burn severity is the ecological change resulting from wildland fires. It is often mapped by using prefire and postfire satellite imagery and classified as low, moderate, or high. Areas burned with high severity are of particular concern to land…
Author(s): Gregory K. Dillon, Matthew Panunto, Brett Davis, Penelope Morgan, Donovan Birch, William Matt Jolly
Year Published:

Continuing long and extensive wildfire seasons in the Western US emphasize the need for better understanding of wildfire impacts including post-fire management scenarios. Advancements in our understanding of post-fire hillslope erosion and watershed…
Author(s): Peter R. Robichaud, Sarah A. Lewis, Robert E. Brown, Edwin D. Bone, Erin S. Brooks
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:

Previous estimates of greenhouse gas emissions from Australian savanna fires have incorporated on-ground dead wood but ignored standing dead trees. However, research from eucalypt woodlands in southern Queensland has shown that the two pools of dead…
Author(s): Garry D. Cook, Adam C. Liedloff, Carl P. Meyer, Anna E. Richards, Steven G. Bray
Year Published:

Research Highlights: The effects of fire on birds in the most northern parts of the boreal forest are understudied. We found distinct differences in bird communities with increasing fire severity in two vegetation types with naturally different burn…
Author(s): Michelle Knaggs, Samuel Hache, Scott E. Nielson, Rhiannon F. Pankratz, Erin Bayne
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:

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:

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:

Changing disturbance regimes and climate can overcome forest ecosystem resilience. Following high-severity fire, forest recovery may be compromised by lack of tree seed sources, warmer and drier postfire climate, or short-interval reburning. A…
Author(s): Jonathan D. Coop, Sean A. Parks, Camille Stevens-Rumann, Shelley Crausbay, Philip E. Higuera, Matthew D. Hurteau, Alan J. Tepley, Ellen Whitman, Timothy J. Assal, Brandon M. Collins, Kimberley T. Davis, Solomon Z. Dobrowski, Donald A. Falk, Paula J. Fornwalt, Peter Z. Fule, Brian J. Harvey, Van R. Kane, Caitlin E. Littlefield, Ellis Q. Margolis, Malcolm P. North, Marc-Andre Parisien, Susan J. Prichard, Kyle Rodman
Year Published:

Amongst the numerous models introduced with SOC, the Forest Fire Model (FFM) is particularly attractive for its close relationship to stochastic spreading, which is central to the study of systems as diverse as epidemics, rumors, or indeed, fires.…
Author(s): Lorenzo Palmieri, Henrik Jeldtoft Jensen
Year Published:

Wildfires are modifying the structure and composition of forests at rates that far exceed mechanical thinning and prescribed fire treatments. We responded to this by analyzing recent wildfires to understand drivers of fire-severity and post-fire…
Author(s): Andrew J. Larson, C. Alina Cansler, Van R. Kane, Derek J. Churchill, Paul F. Hessburg, James A. Lutz, Nicholas A. Povak
Year Published:

There is a growing interest by governments and academics in including Indigenous knowledge alongside scientific knowledge in environmental management, including monitoring. Given this growing interest, a critical review of how Indigenous peoples…
Author(s): Kim-Ly Thompson, Trevor C. Lantz, Natalie C. Ban
Year Published:

Fire refugia—locations that burn less severely or less frequently than surrounding areas—support late-successional and old-growth forest structure and function. This study investigates the influence of topography and fuels on the probability of…
Author(s): Garrett W. Meigs, Christopher J. Dunn, Sean A. Parks, Meg A. Krawchuk
Year Published:

The relationship between wildland fire spread rate and wind has been a topic of study for over a century, but few laboratory studies report measurements in controlled winds exceeding 5 m s−1. In this study, measurements of fire rate of spread, flame…
Author(s): Bret W. Butler, Steve Quarles, Christine Standohar-Alfano, Murray Morrison, Daniel M. Jimenez, Paul Sopko, Cyle E. Wold, Larry S. Bradshaw, Loren Atwood, Justin Landon, Joseph J. O'Brien, Benjamin Hornsby, Natalie S. Wagenbrenner, Wesley G. Page
Year Published:

A risk-based framework for targeting investment in prescribed burning in Western Australia is presented. Bushfire risk is determined through a risk assessment and prioritisation process. The framework provides principles and a rationale for…
Author(s): Trevor Howard, Neil D. Burrows, Tony Smith, Glen Daniel, Lachlan McCaw
Year Published: