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Ecosystem

Displaying 2241 - 2260 of 6066 results

Wildfire has been a constant presence on the Earth since at least the Silurian period, and is a landscape-scale catalyst that results in a step-change perturbation for hydrologic systems, which ripples across burned terrain, shaping the geomorphic…
Author(s): Francis K. Rengers
Year Published:

Accurately modeling the duration and extent of soil heating from prescribed fires and wildfires is vital to predicting many second-order fire effects, including development of soil hydrophobicity and other biological, chemical, and physical effects…
Author(s): Peter R. Robichaud, William J. Massman, Anthony S. Bova, Antonio Girona-García, Mathew Lesiecki
Year Published:

Although there is convincing scientific research for the role of Indigenous fire practices in sustainable land management, Indigenous peoples' involvement in policy-making is limited. This paper presents findings from a fire management workshop…
Author(s): Bibiana A. Bilbao, Jayalaxshmi Mistry, Adriana Millán, Andrea Berardi
Year Published:

Resilience has become a common goal for science-based natural resource management, particularly in the context of changing climate and disturbance regimes. Integrating varying perspectives and definitions of resilience is a complex and often…
Author(s): Philip E. Higuera, Alexander L. Metcalf, Carol Miller, Brian Buma, Dave McWethy, Elizabeth C. Metcalf, Zak Ratjczak, Cara R. Nelson, Brian C. Chaffin, Richard C. Stedman, Sarah M. McCaffrey, Tania L. Schoennagel, Brian J. Harvey, Sharon M. Hood, Courtney Schultz, Anne E. Black, Dave Campbell, Julia H. Haggerty, Robert E. Keane, Meg A. Krawchuk, Judith C. Kulig, Rebekah Rafferty, Arika Virapongse
Year Published:

The current mountain pine beetle (MPB; Dendroctonus ponderosae Hopkins, 1902) outbreak has reached more than 25 million hectares of forests in North America, affecting pine species throughout the region and substantially changing landscapes. However…
Author(s): Julian Wittische, Jasmine K. Janes, Patrick M.A. James
Year Published:

Fuel treatments are designed with multiple management goals, including improving suppression capacity and restoring the historical structure of dry forests. Fuelbreaks are a class of fuel treatment that remove fuels within a wide strip of land, with…
Author(s): Maureen C. Kennedy, Morris C. Johnson, Kendra Fallon, Deborah Mayer
Year Published:

A novel approach is presented to analyze smoke exposure and provide a metric to quantify health-related impacts. Our results support the current understanding that managing low-intensity fire for ecological benefit reduces exposure when compared to…
Author(s): D.W. Schweizer, Haiganoush K. Preisler, Ricardo Cisneros
Year Published:

Wildfire refugia (unburnt patches within large wildfires) are important for the persistence of fire‐sensitive species across forested landscapes globally. A key challenge is to identify the factors that determine the distribution of fire refugia…
Author(s): Luke Collins, Andrew F. Bennett, Steven W.J. Leonard, Trent D. Penman
Year Published:

This work examines the perceived impact of sociopolitical factors on large fire decision making. The study is based on a set of 74 large fires in USDA Forest Service Regions 5 and 6 for the years 2009-2013. All participants were fire managers, some…
Author(s): Armando Gonzalez-Caban, Donald G. MacGregor
Year Published:

Despite major advances in numerical weather prediction, few resources exist to forecast wildland fire danger conditions to support operational fire management decisions and community early-warning systems. Here we present the development and…
Author(s): William Matt Jolly, Patrick H. Freeborn, Wesley G. Page, Bret W. Butler
Year Published:

OBJECTIVE: The purpose of this study was to evaluate pre- and postseason measures of body composition, skeletal muscle, and blood parameters/liver lipid in wildland firefighters (WLFF) over the fire season. METHODS: Alaskan WLFF (N = 27) crews were…
Author(s): R.H. Coker, C.J. Murphy, M. Johannsen, G. Galvin, B.C. Ruby
Year Published:

Questions: Gradients of fire severity in dry conifer forests can be associated with variation in understory floristic composition. Recent work in California, USA, dry conifer forests has suggested that more severely burned stands contain more…
Author(s): Jens T. Stevens, Jesse E. D. Miller, Paula J. Fornwalt
Year Published:

The damage caused by forest fire to forestry resources and economy is quite serious. As one of the most important characters of early forest fire, smoke is widely used as a signal of forest fire. In this paper, we propose a novel forest fire smoke…
Author(s): Yu Gao, Pengle Cheng
Year Published:

Following publication of the original article (Hyde et al., 2015), the authors have noticed two errors in the summarizing of our results and wish to point out the following corrections: – The LANDFIRE-FCCS layer showed a 200% higher duff loading…
Author(s): Joshua C. Hyde, Eva K. Strand, Andrew T. Hudak, Dale Hamilton
Year Published:

One approach to increase community resilience to wildfire impacts is the enhancement of residential construction standards in an effort to provide protective shelters for families within their own homes. Current wildfire models reviewed in this…
Author(s): Greg Penney, Steven Richardson
Year Published:

Piling and burning is widely used to dispose of unmerchantable debris resulting from thinning in forests throughout the western United States. Quite often more piles are created than are burned in a given year, however, causing piles to persist,…
Author(s): Clinton S. Wright, Alexander M. Evans, Sara Grove, Karen A. Haubensak
Year Published:

Most wildfires in North America are quickly extinguished during initial attack (IA), the first phase of suppression. While rates of success are high, it is not clear how much IA suppression reduces annual fire risk across landscapes. This study…
Author(s): Jonathan Reimer, Dan K. Thompson, Nicholas A. Povak
Year Published:

While prescribed burning is a proven tool in the management of forests and grasslands, its use has been limited due, in part, to potential risks that may result in legal liability, property damage, and personal injury. The purpose of this study is…
Author(s): Omkar Joshi, Neelam C. Poudyal, John R. Weir, Samuel D. Fuhlendorf, Thomas O. Ochuodho
Year Published:

Fitness is critical in keeping wildland firefighters (WLFFs) healthy and safe from injury. Unfortunately, little is known about the physical training (PT) programs of WLFFs. The purpose of this study was to understand motivators, barriers and…
Author(s): Annie Sondag, Valerie J. Moody, Aria Mangan
Year Published:

Over the past three decades, wildfires in southwestern US ponderosa pine (Pinus ponderosa Lawson & C. Lawson) forests have increased in size and severity. These wildfires can remove large, contiguous patches of mature forests, alter dominant…
Author(s): Suzanne M. Owen, Adair M. Patterson, Catherine A. Gehring, Carolyn Hull Sieg, L. Scott Baggett, Peter Z. Fule
Year Published: