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Ecosystem

Displaying 801 - 820 of 5894 results

National and regional preparedness level (PL) designations support decisions about wildfire risk management. Such decisions occur across the fire season and influence pre-positioning of resources in areas of greatest fire potential, recall of…
Author(s): Alison Cullen, Travis Axe, Harry Podschwit
Year Published:

Harold Biswell first learned about the benefits of prescribed fire in forest management when he was a Forest Service researcher in Georgia, USA. After he accepted a professorship in the School of Forestry at the University of California, Berkeley,…
Author(s): Scott L. Stephens, Jan W. van Wagtendonk, James K. Agee, Ronald H. Wakimoto
Year Published:

Recent dramatic and deadly increases in global wildfire activity have increased attention on the causes of wildfires, their consequences, and how risk from wildfire might be mitigated. Here we bring together data on the changing risk and societal…
Author(s): Marshall Burke, Anne Driscoll, Sam Heft-Neal, Jiani Xue, Jennifer Burney, Michael Wara
Year Published:

Climate change, with warming temperatures and shifting precipitation patterns, may increase natural-caused forest fire activity. Increasing natural-caused fires throughout western United States national forests could place people, property, and…
Author(s): Hadi Heidari, Mazdak Arabi, Travis Warziniack
Year Published:

Wildfires constitute a serious threat for both the environment and human well-being. The US fire policy aims to tackle this problem, devoting a sizeable amount of resources and resorting extensively to fire suppression strategies. The theoretical…
Author(s): Massimiliano Agovino, Massimiliano Cercielo, Aniello Ferraro, Antonio Garofalo
Year Published:

Hillslope erosion has often been monitored with sediment fences, but these can underestimate sediment yields due to overtopping of runoff and associated sediment. We modified four sediment fences to collect and measure the runoff and sediment that…
Author(s): Codie Wilson, Stephanie Kampf, Joseph W. Wagenbrenner, Lee H. MacDonald, Hunter Gleason
Year Published:

A conceptual model based on the dynamic interaction between fire, the fuel bed and the surrounding flow to explain the non-monotonic or intermittent behaviour of fires is proposed. According to the model, even in nominally permanent and uniform…
Author(s): Domingos Xavier Viegas, J. R. Raposo, Carlos Ribeiro, Luís Carlos Duarte Reis, Abdelrahman Abouali, Carlos Viegas
Year Published:

Global change is expanding the ecological niche of mixed-severity fire regimes into ecosystems that have not usually been associated with wildfires, such as temperate forests and rainforests. In contrast to stand-replacing fires, mixed-severity…
Author(s): Janet Maringer, Andrew Hacket-Pain, Davide Ascoli, Matteo Garbarino, Marco Conedera
Year Published:

A primary aim of U.S. fire management is to foster communities who can adapt to wildfire as a reoccurring process on the landscapes in which they live. Such fire adapted communities should ideally have the ability to effectively prepare for, respond…
Author(s): Alex W. Kirkpatrick
Year Published:

Due to the shifting global climate, the frequency and severity of disturbances are increasing, inevitably causing an increase in disturbances overlapping in time and space. Bark beetle epidemics and wildfires have historically shaped the disturbance…
Author(s): Zoe Schapira, Camille Stevens-Rumann, Donna Shorrock, Chad M. Hoffman, Amy Chambers
Year Published:

Environmental models involve inherent uncertainties, the understanding of which is required for use by practitioners. One method of uncertainty quantification is global sensitivity analysis (GSA), which has been extensively used in environmental…
Author(s): Ujjwal KC, Jagannath Aryal, Saurabh Garg, J. E. Hilton
Year Published:

The safety during prescribed burnings could be achieved by conducting these operations under marginal conditions of fire propagation. This type of fire can or cannot propagate on account of small deviations of the burning conditions, mainly the wind…
Author(s): Carmen Awad, N. Frangieh, Thierry Marcelli, Gilbert Accary, D. Morvan, Sofiane Meradji, François Joseph Chatelon, Jean Louis Rossi
Year Published:

The unprecedented scale of the 2019-2020 eastern Australian bushfires exemplifies the challenges that scientists and conservation biologists face monitoring the effects on biodiversity in the aftermath of large-scale environmental disturbances.…
Author(s): Casey Kirchhoff, Corey T. Callaghan, David A. Keith, Dony Indiarto, Guy Taseski, Mark K. J. Ooi, Tom D. Le Breton, Thomas Mesaglio, Richard T. Kingsford, William K. Cornwell
Year Published:

Fire weather tools, such as the National Fire Danger Rating System (NFDRS) and the Wildland Fire Decision Support System (WFDSS), have been developed to support wildland fire management decisions. However, little is known about how these tools are…
Author(s): Eric L. Toman, Robyn S. Wilson, William Matt Jolly, Christine Olsen
Year Published:

This FEIS species review synthesizes information on the relationship of Rubus laciniatus (cutleaf blackberry) to fire--how fire affects the species and its habitat, invasiveness of the species, and fire management considerations. Information is also…
Author(s): Janet L. Fryer
Year Published:

Fire spread associated with violent pyrogenic convection is highly unpredictable and difficult to suppress. Wildfire-driven convection may generate cumulonimbus (storm) clouds, also known as pyrocumulonimbus (pyroCb). Research into such phenomena…
Author(s): Rachel Badlan, J. Sharples, Jason P. Evans, Richard H. D. McRae
Year Published:

Over the past century the size and severity of wildfires, as well as post-fire recovery processes (e.g., seedling establishment), have been altered from historical levels due to management policies and changing climate. Tree seedling establishment…
Author(s): Darcy H. Hammond, Eva K. Strand, Penelope Morgan, Andrew T. Hudak, Beth A. Newingham
Year Published:

Throughout the United States, wildland firefighters respond to wildfires, performing arduous work in remote locations. Wildfire incidents can be an ideal environment for the transmission of infectious diseases, particularly for wildland firefighters…
Author(s): Kathleen M. Navarro, Kathleen A. Clark, Daniel J. Hardt, Colleen Reid, Peter Lahm, Joseph W. Domitrovich, Corey Butler, John R. Balmes
Year Published:

Significance: The coronavirus pandemic, COVID-19, led to strict social-distancing guidelines that severely impacted human livelihood and economic activity. Workplace closures reduced travel, and early in spring 2020, improvements in air and water…
Author(s): Ben Poulter, Patrick H. Freeborn, William Matt Jolly, J. Morgan Varner
Year Published:

Purpose: To understand the association between heart rate variability and indices of fatigue, total sleep time, and reaction time in shift workers. Methods:Ten participants from the British Columbia Wildfire Service management team were examined…
Author(s): Andrew T. Jeklin, Andrew S. Perrotta, Hugh W. Davies, Shannon S. D. Bredin, Dion A. Paul, Darren E. R. Warburton
Year Published: