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Ecosystem

Displaying 1041 - 1060 of 6051 results

With increasing forest and grassland wildfire trends strongly correlated to anthropogenic climate change, assessing wildfire danger is vital to reduce catastrophic human, economic, and environmental loss. From this viewpoint, the authors discuss…
Author(s): Sonisa Sharma, Kundan Dhakal
Year Published:

Wildfire-generated snags provide key habitat for wildlife associated with recently disturbed forests, offering nesting and foraging resources for several woodpecker species. Snag harvest through post-fire salvage logging provides economic value but…
Author(s): Todd Cross, Quresh Latif, Jonathan G. Dudley, Victoria A. Saab
Year Published:

Climate change and human activities have drastically altered the natural wildfire balance in the Western US and increased population health risks due to exposure to pollutants from fire smoke. Using dynamically downscaled climate model projections,…
Author(s): Jennifer D. Stowell, Cheng-En Yang, Joshua S. Fu, Noah Scovronick, Matthew J. Strickland, Yang Liu
Year Published:

Wildfires are increasing in frequency, size, and intensity, and increasingly affect highly populated areas. Wildfire smoke impacts cardiorespiratory health; children are at increased risk due to smaller airways, a higher metabolic rate and ongoing…
Author(s): Shelby Henry, Maria B. Ospina, Liz Dennett, Anne Hicks
Year Published:

Beaver dams are gaining popularity as a low‐tech, low‐cost strategy to build climate resiliency at the landscape scale. They slow and store water that can be accessed by riparian vegetation during dry periods, effectively protecting riparian…
Author(s): Emily Fairfax, Andrew Whittle
Year Published:

No single factor produces wildfires; rather, they occur when fire thresholds (ignitions, fuels, and drought) are crossed. Anomalous weather events may lower these thresholds and thereby enhance the likelihood and spread of wildfires. Climate change…
Author(s): Juli G. Pausas, Jon E. Keeley
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:

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: