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Ecosystem

Displaying 1481 - 1500 of 6016 results

The propagation of a forest fire can be described by a convection–diffusion–reaction problem in two spatial dimensions, where the unknowns are the local temperature and the portion of fuel consumed as functions of spatial position and time. This…
Author(s): Raimund Bürger, Elvis Gavilán, Daniel Inzunza, Pep Mulet, Luis Miguel Villada
Year Published:

This article is a Response to Adams et al. 26, 3756–3758. See also the Letter by Nolan et al. 26, 1039–1041. In a response to our Letter on the causes and consequences of the 2019–20 forest fires in eastern Australia (Nolan et al., 2020), Adams,…
Author(s): Ross A. Bradstock, Rachael H. Nolan, Luke Collins, Víctor Resco de Dios, Hamish G. Clarke, Meaghan E. Jenkins, Belinda Kenny, Matthais M. Boer
Year Published:

In recent years, severe and deadly wildland-urban interface (WUI) fires have resulted in an increased focus on this particular risk to humans and property, especially in Canada, USA, Australia, and countries in the Mediterranean area. Also, in areas…
Author(s): Torgrim Log, Vigdis Vandvik, Liv G. Velle, Maria-Monika Metallinou
Year Published:

Fire management agencies use fire behaviour simulation tools to predict the potential spread of a fire in both risk planning and operationally during wildfires. These models are generally based on underlying empirical or quasi-empirical relations…
Author(s): Trent D. Penman, Dan Ababei, Jane G. Cawson, Brett Cirulis, Thomas J. Duff, W. Swedosh, J. E. Hilton
Year Published:

The increasing amount of high-severity wildfire in historical low and mixed-severity fire regimes in western US forests has created a need to better understand the ecological effects of different post fire management approaches. For three different…
Author(s): Morris C. Johnson, Maureen C. Kennedy, Sarah C. Harrison, Derek J. Churchill, James Pass, Paul W. Fischer
Year Published:

Bark beetles are primary disturbance agents in western US forests. Outbreaks affect goods and services associated with forest ecosystems including timber, water, fish and wildlife habitats and populations, recreation opportunities, and many others.…
Author(s): Daniel W. McCollum, John E. Lundquist
Year Published:

Spotting during wildfires can significantly influence the way wildfires spread and reduce the chances of successful containment by fire crews. However, there is little published empirical evidence of the phenomenon. In this study, we have analysed…
Author(s): Michael A. Storey, Owen F. Price, Ross A. Bradstock, J. Sharples
Year Published:

The ongoing COVID-19 pandemic and the potential for co-occurring wildfires pose health threats to people around the globe. Along with the direct impacts of wildfires, exposure to fine particulate matter (PM 2.5)—pollution composed of small inhalable…
Author(s): Francisca N. Santana, Stephanie L. Fischer, Marika O. Jaeger, Gabrielle Wong-Parodi
Year Published:

The unprecedented 2015 wildfire season in northern Saskatchewan, Canada resulted in the largest evacuation in the province's history. The depiction of such environmental hazards in the news media is one mechanism that can, even inadvertently,…
Author(s): Heidi M. Walker, Maureen G. Reed, Amber J. Fletcher
Year Published:

Wildfires are common across the Pacific Northwest, however climate change is projected to cause increases in wildfire activity and severity. Wildfires create a heterogeneous pattern across the landscape from severely burned areas to unburned patches…
Author(s): Arjan J. H. Meddens, Andrew T. Hudak, Crystal A. Kolden
Year Published:

The structure and composition of sagebrush‐dominated ecosystems have been altered by changes in fire regimes, land use, invasive species, and climate change. This often decreases resilience to disturbance and degrades critical habitat for species of…
Author(s): Lisa M. Ellsworth, J. Boone Kauffman, Schyler A. Reis, David B. Sapsis, Kendra Moseley
Year Published:

Increases in burned area across the western US since the mid‐1980’s have been widely documented and linked partially to climate factors, yet evaluations of trends in fire severity are lacking. Here, we evaluate fire severity trends and their…
Author(s): Sean A. Parks, John T. Abatzoglou
Year Published:

Fire is a natural process that has shaped the history of Earth long before human presence; imagining a “world without fires is like a sphere without roundness” ([1], p.599). Evidence that massive and intense fires naturally occurred throughout the…
Author(s): Fantina Tedim, Sarah M. McCaffrey, Vittorio Leone, Giuseppe M. Delogu, Marc Castelnou, Tara K. McGee, Jose Aranha
Year Published:

Most regulatory and certification agencies in Canada now require forest management plans to include some level of historical fire pattern approximation. As a result, sustainable forest management and enhancements to existing fire management policies…
Author(s): Ignacio San-Miguel, Nicholas C. Coops, Raphael D. Chavardes, David W. Andison, Paul D. Pickell
Year Published:

During the past century, systematic wildfire suppression has decreased fire frequency and increased fire severity in the western United States of America. While this has resulted in large ecological changes aboveground such as altered tree species…
Author(s): Nicholas C. Dove, Hugh Safford, Gabrielle N. Bohlman, Becky L. Estes, Stephen C. Hart
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:

Fire is a natural element of the landscape and thus, the environment would be different as we know it without its presence. Fire is accepted as a vital force in shaping biomes and, to some extent, has allowed us to persist through time and became '…
Author(s): Miriam Muñoz-Rojas, Paulo Pereira
Year Published:

Purpose:This paper reviews the most recent literature related to the use of remote sensing (RS) data in wildland fire management. Recent Findings: Studies dealing with pre-fire assessment, active fire detection, and fire effect monitoring are…
Author(s): Emilio Chuvieco, Inmaculada Aguado, Javier Salas, Mariano Garcia, Marta Yebra, Patricia Oliva
Year Published:

Forests of the western U.S. are undergoing substantial stress from fire exclusion and increasing effects of climate change, altering ecosystem functions and processes. Changes in broad‐scale drivers of forest community composition become apparent in…
Author(s): Laura A. Marshall, Donald A. Falk
Year Published:

Forest fires are incidents of great importance in Mediterranean environments. Landsat data have proven to be suitable for evaluating post-fire vegetation damage and determining different levels of burn severity, which is crucial for planning post-…
Author(s): Carmen Quintano, Alfonso Fernández-Manso, Dar A. Roberts
Year Published: