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Ecosystem

Displaying 1701 - 1720 of 6051 results

Cheatgrass (Bromus tectorum) has increased the extent and frequency of fire and negatively affected native plant and animal species across the Intermountain West (USA). However, the strengths of association between cheatgrass occurrence or abundance…
Author(s): Matthew A. Williamson, Erica Fleishman, Ralph Mac Nally, Jeanne C. Chambers, Bethany A. Bradley, David S. Dobkin, David Board, Frank A. Fogarty, Ned Horning, Matthias Leu, Martha Wohlfeil Zillig
Year Published:

Despite evident advances in knowledge and understanding concerning the application of prescribed burning for delivering benefits in wildfire control and a variety of sociocultural, economic and environmental outcomes, the practical application of…
Author(s): Jeremy Russell-Smith, Lachlan McCaw, Adam J. Leavesley
Year Published:

Potential Operational Delineations (PODs) is a spatial wildfire planning framework that brings together operational fire responses and landscape management goals from Forest Planning documents. It was developed by scientists at the Rocky Mountain…
Author(s): Rocky Mountain Research Station, Colorado Forest Restoration Institute
Year Published:

This review is focused on tree seedling regeneration for several reasons. First, a high mortality event, like a high- severity wildfire, kills the mature trees needed to maintain forest cover. When fire-caused mortality is minimal, we are less…
Author(s): Camille Stevens-Rumann, Penelope Morgan, Kimberley T. Davis, Kerry Kemp, Jarod Blades
Year Published:

Fire refugia—locations that burn less severely or less frequently than surrounding areas—support late-successional and old-growth forest structure and function. This study investigates the influence of topography and fuels on the probability of…
Author(s): Garrett W. Meigs, Christopher J. Dunn, Sean A. Parks, Meg A. Krawchuk
Year Published:

Firefighters are exposed to numerous stressors during wildfire suppression, including working in hot temperatures and sleep restricted conditions. Research has shown that when sleep restricted, individuals choose foods higher in carbohydrates, fat,…
Author(s): Charlotte C. Gupta, Sally A. Ferguson, Brad Aisbett, Michelle Dominiak, Stephanie E. Chappel, Madeline Sprajcer, Hugh H. K. Fullagar, Saman Khalesi, Joshua H. Guy, Grace E. Vincent
Year Published:

Background Predictive models of post-fire tree and stem mortality are vital for management planning and understanding fire effects. Post-fire tree and stem mortality have been traditionally modeled as a simple empirical function of tree defenses (e.…
Author(s): C. Alina Cansler, Sharon M. Hood, Phillip J. van Mantgem, J. Morgan Varner
Year Published:

Fire activity has a huge impact on human lives. Different models have been proposed to predict fire activity, which can be classified into global and regional ones. Global fire models focus on longer timescale simulations and can be very complex.…
Author(s): Leonardo N. Ferreira, Didier A. Vega-Oliveros, Liang Zhao, Manoel F. Cardoso, Elbert E.N. Macau
Year Published:

In the Great Basin, changes in climate and associated fire regimes may alter the density and distribution of shrubs, changing the structure and diet quality of plants in burned areas. We evaluated how the structural and phytochemical characteristics…
Author(s): Marcella R. Fremgen-Tarantino, Jacqueline J. Peña, John W. Connelly, Jennifer Sorensen Forbey
Year Published:

Accurate predictions of how weather may affect a wildfire’s behavior are needed to protect crews on the line and efficiently allocate firefighting resources. Since 1988, fire meteorologists have used a tool called the Haines Index to predict days…
Author(s): Andrea Watts, Brian E. Potter, Joseph J. Charney, Alan F. Srock
Year Published:

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:

ePDFPDF PDF Tools Share Abstract Every year, the four federal agencies that manage designated wilderness in the United States receive proposals to implement small‐ and large‐scale ecological restorations within the National Wilderness Preservation…
Author(s): Peter Landres, Beth Hahn, Eric Biber, Daniel T. Spencer
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 the face of changing climatic regimes and increases in extreme fire events, many western forests are poised to burn, not only once but multiple times, sometimes in short succession. As such, land managers have limited opportunities to effectively…
Author(s): Michelle Coppoletta, Brandon M. Collins, Scott H. Markwith, Kyle E. Merriam
Year Published:

Fire is a complex Earth system phenomenon that fundamentally affects vegetation distributions, biogeochemical cycling, climate, and human society across most of Earth's land surface. Fire regimes are currently changing due to multiple interacting…
Author(s): Brendan M. Rogers, Jennifer Balch, Scott J. Goetz, Caroline E. R. Lehmann, Merritt R. Turetsky
Year Published:

In many fire-prone watersheds, wildfire threatens surface drinking water sources with eroded contaminants. We evaluated the potential to mitigate the risk of degraded water quality by limiting fire sizes and contaminant loads with a containment…
Author(s): Benjamin Gannon, Yu Wei, Matthew P. Thompson
Year Published:

Fungal assemblages after a large-scale disturbance can be diverse and have functionally important roles in forests. However, fungi include several functional groups, and the responses of these groups to different forest disturbances is poorly…
Author(s): Jari Kouki, Kauko Salo
Year Published:

Wildfire is a ubiquitous disturbance agent in subalpine forests in western North America. Lodgepole pine (Pinus contorta var. latifolia), a dominant tree species in these forests, is largely resilient to high-severity fires, but this resilience may…
Author(s): Barrie V. Chileen, Kendra K. McLauchlan, Philip E. Higuera, Meredith Parish, Bryan N. Shuman
Year Published:

FIRE PHOTOGRAPHY BEGAN EARLY. As soon as photographs could replace lithographs in magazines and newspapers, photos of firefights, the aftermath of bad burns, and occasionally even flame and smoke appeared. When Harper’s Weekly covered the 1871 and…
Author(s): Stephen Pyne
Year Published:

As we enter the wildfire season in the northern hemisphere, the potential for a dangerous interaction between SARS-CoV-2 and smoke pollution should be recognized and acknowledged. This is challenging because the public health threat of COVID-19 is…
Author(s): Sarah B. Henderson
Year Published: