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Background
Fuel moisture content is a key driver of fuel flammability and subsequent fire activity and behavior worldwide. Dead fuels passively exchange moisture with the atmosphere while live fuel moisture is confounded by a mixture of seasonal…
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Background
Record fire years in recent decades have challenged post-fire forest recovery in the western United States and beyond. To improve management responses, it is critical that we understand the conditions under which management can mitigate…
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Background
Merging fire fronts have been associated with rapid fire spread and extremely destructive wildfires, yet few studies have characterised these behaviours outside the laboratory.
Aims
This study aimed to improve our understanding of merging…
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Background
Catastrophic wildfire has escalated across the globe in recent decades with devastating consequences for human communities and native ecosystems. Global change processes, including climate warming and land use practices, are altering…
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Background
Potential heat release (PHR) is the theoretical maximum amount of heat releasable by wildland fuels during fire and is a key determinant of fireline intensity. Understanding its variability and dynamics is important for predicting fire…
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In June 2024 members of the Fire Science Exchange Networks and the Joint Fire Science Program's programming office and governing board attended a field trip on the Flathead Reservation in Montana to learn about historic and current fire and forest…
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This study investigates the thermal radiative properties of firefighter helmets, focusing on the influence of helmet color and soot deposition on their performance. Firefighters’ helmets, often chrome plated for reflectivity or colored for…
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The Northern Rocky Mountains, USA contain a vast forested landscape, managed primarily by the federal government. This region contains some of the highest elevations forests and most iconic endangered and threatened species in the contiguous United…
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Wildfire activity has accelerated with climate change, sparking concerns about uncharacteristic impacts on mature and old-growth forests containing large trees. Recent assessments have documented fire-induced losses of large-tree habitats in the US…
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Background
Large and severe bushfires (wildfires) continue to burn and cause terrible damage in Australia and the US. Both countries have responded to this threat by implementing management strategies and policies with differing results. This paper…
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Prescribed fire is an important tool for management of many ecosystems, but often there is a gap between how much managers would like to see fire used and how often it actually is. In this piece, the Northern Rockies Fire Science Network explores…
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Ensuring proper sizing and fit for U.S. female firefighters’ personal protective clothing and equipment (PPE) is a crucial challenge for researchers and manufacturers. The National Fire Protection Association (NFPA) establishes design and…
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Anthropogenic subsidies and disturbance can benefit generalist avian species by providing additional food, nesting, and perching resources. In the sagebrush biome, anthropogenic subsidies have led to increases in the number of common ravens (Corvus…
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At the upper elevations of Saguaro National Park, aspen and Chihuahua pine persist under starkly different ecological strategies - one moisture-dependent, the other adapted to fire and drought. This presentation draws on tree-ring data and climate-…
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Aspen (Populus tremuloides) forests are generally thought to impede fire spread, yet the extent of this effect is not well quantified in relation to other vegetation types. We examined the influence of aspen cover on interpolated daily fire spread…
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Increased fire activity in the western United States since 2000 has produced an abundance of fire-injured trees at risk to lethal attack by bark beetles. Large populations of bark beetles reproducing in fire-injured trees may disperse (or spillover…
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Wildfires in the western US increasingly threaten infrastructure, air quality, and public health. Prescribed (“Rx”) fire is often proposed to mitigate future wildfires, but treatments remain limited, and few studies quantify their effectiveness on…
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Firebrands or embers are a crucial phenomenon in wildfire behaviour. Firebrands – small, burning or smouldering pieces of wood or other flammable materials – can be carried by wind considerable distances, leading to ignition of new fires ahead of…
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Research brief published by the California Fire Science Consortium, based on Boerigter, C.E., Parks, S.A., Long, J.W. et al. Untrammeling the wilderness: restoring natural conditions through the return of human-ignited fire. fire ecol 20, 76 (2024…
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The increasing frequency and intensity of wildfires in hard-to-reach and hazardous areas represents a significant challenge for traditional firefighting methods. Wildfires pose a growing threat to the environment, property, and human lives. In many…
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