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Ecosystem

Displaying 1781 - 1800 of 6051 results

Prescribed fire can result in significant benefits to ecosystems and society. Examples include improved wildlife habitat, enhanced biodiversity, reduced threat of destructive wildfire, and enhanced ecosystem resilience. Prescribed fire can also come…
Author(s): Molly E. Hunter, Marcos D. Robles
Year Published:

Acetylene is a short‐lived trace gas produced during combustion of fossil fuels, biomass, and biofuels. Biomass burning is likely the only major source of acetylene in the preindustrial atmosphere, making ice core acetylene a powerful tool for…
Author(s): Melinda R. Nicewonger, Murat Aydin, Michael J. Prather, Eric S. Saltzman
Year Published:

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:

A simple laboratory-scale experimental method was developed to study firebrand generation processes. As part of these experiments, Japanese wind facilities were used to elucidate the effect of wind speed on firebrand generation from structural…
Author(s): Sayaka Suzuki, Sam Manzello
Year Published:

Researchers are increasingly examining patterns and drivers of postfire forest recovery amid growing concern that climate change and intensifying fires will trigger ecosystem transformations. Diminished seed availability and postfire drought have…
Author(s): Caitlin E. Littlefield, Solomon Z. Dobrowski, John T. Abatzoglou, Sean A. Parks, Kimberley T. Davis
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:

We analysed the influence of wildfire area, topography, fuel, surface weather and upper-level weather conditions on long-distance spotting during wildfires. The analysis was based on a large dataset of 338 observations, from aircraft-acquired…
Author(s): Michael A. Storey, Owen F. Price, J. Sharples, Ross A. Bradstock
Year Published:

The simultaneous occurrence of wildfire can hinder firefighting effectiveness via multiple mechanisms that might explain historical resource demand trends. We validate this hypothesis by using data from the Monitoring Trends in Burn Severity (MTBS)…
Author(s): Harry Podschwit, Alison Cullen
Year Published:

The aim of this paper is to create a user-friendly computational tool for analysis of wildland fire behavior and its effect on urban and other structures. A physics-based multiphase Computational Fluid Dynamics (CFD) model of wildfire initiation and…
Author(s): Vladimir Agranat, Valeriy Perminov
Year Published:

Wildland fires have a multitude of ecological effects in forests, woodlands, and savannas across the globe. A major focus of past research has been on tree mortality from fire, as trees provide a vast range of biological services. We assembled a…
Author(s): C. Alina Cansler, Sharon M. Hood, Phillip J. van Mantgem, J. Morgan Varner
Year Published:

Fire-stimulated flowering and fire-stimulated resprouting are associated traits common in plants that evolved in fire-prone habitats, e.g., Vellozia pyrantha, an iconic plant that has economic potential and is endemic to a fully protected area. By…
Author(s): Bárbara Paula dos Santos Borges, Andressa Priscila Piancó Santos Lima, Alone Lima-Brito, José Raniere Ferreira de Santana, Abel Augusto Conceição
Year Published:

Previous research on media framing of wildfire has chiefly been concerned with the nature of wildfire in the context of climate change and with framing effects on policy and public opinion. Empirical studies on media content, hence what is mediated…
Author(s): Sofia Nilsson, Ann Enander
Year Published:

Australian fire services provide two broad types of warning to people in bushfire (or wildfire) risk areas. Fire Danger Ratings communicate the possible consequences of a bushfire due to its rate of spread, intensity and difficulty of suppression.…
Author(s): Joshua Whittaker, Mel Taylor, Christopher Bearman
Year Published:

This research note seeks to draw attention to the potential impact of social media climate change debates on the Australian tourism industry during and after the devastating 2019-2020 Australian bushfires. Whilst acknowledging the tremendous role of…
Author(s): Stephen Schweinsberg, Simon Darcy, David Beirman
Year Published:

Pacific salmon spawning and rearing habitats result from dynamic interactions among geomorphic processes, natural disturbances, and hydro‐climatological factors acting across a range of spatial and temporal scales. We used a 21‐year record of redd…
Author(s): Gregory R. Jacobs, Russell F. Thurow, John M. Buffington, Daniel J. Isaak, Seth J. Wenger
Year Published:

With climate-driven increases in wildfires in the western U.S., it is imperative to understand how the risk to homes is also changing nationwide. Here, we quantify the number of homes threatened, suppression costs, and ignition sources for 1.6…
Author(s): Nathan Mietkiewicz, Jennifer Balch, Tania L. Schoennagel, Stefan Leyk, Lise A. St. Denis, Bethany A. Bradley
Year Published:

Particulate matter with aerodynamic diameter < 2.5 μm (PM2.5) is one of the main pollutants generated in wildfire events with negative impacts on human health. In research involving wildfires and air quality, it is common to use emission models.…
Author(s): Joseph Sánchez-Balseca, Agustí Pérez-Foguet
Year Published:

Riparian forests link terrestrial and freshwater communities and therefore understanding the landscape context of fire regimes in these forests is critical to fully understanding the landscape ecology. However, few direct studies of fire regimes…
Author(s): Grant Harley, Emily K. Heyerdahl, James D. Johnston, Diana L. Olson
Year Published:

Over the past several decades, the impacts of climate change have threatened the health and functioning of forested ecosystems on a global scale. Warming and drying trends have altered disturbance regimes and have created significant uncertainty…
Author(s): Zoe Schapira, Camille Stevens-Rumann
Year Published:

Given the recent history of frequent and extensive late dry season wildfire in Australia’s fire-prone northern savannas, regional conservation-based fire management programs typically aim to mitigate wildfire through the use of strategic prescribed…
Author(s): Jay Evans, Jeremy Russell-Smith
Year Published: