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Ecosystem

Displaying 1661 - 1680 of 6073 results

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:

This document is a chapter within the Encyclopedia of Wildfires and Wildland-Urban Interface (WUI) Fires Living Edition. A fire adapted community (FAC) is comprised of residents, land management professionals, local politicians, emergency managers,…
Author(s): Travis B. Paveglio, Catrin Edgeley
Year Published:

Considerable research has explored homeowner wildfire-mitigation efforts identifying many salient factors that help predict acceptance and behaviors. A growing body of literature is unlocking the dynamics of formal associations’ roles in promoting…
Author(s): Eric Steffey, Megha Budruk, Christine A. Vogt
Year Published:

Hiking with a pack is the highest-intensity task that wildland firefighters (WLFFs) perform during sustained activities related to wildland fire suppression. Firefighters perform this and other tasks together as a crew; this provides a unique model…
Author(s): Steven E. Gaskill, Charles L. Dumke, Charles G. Palmer, Brent Ruby, Joseph W. Domitrovich, Joseph A. Sol
Year Published:

Although there has been a lot of work on ignition times at constant imposed heat flux and on steady creeping flame spread, no definite results exist for the effect of material thickness on these phenomena, specifically away from purely thermally…
Author(s): Michael Delichatsios
Year Published:

Methods to accurately estimate spatially explicit fuel consumption are needed because consumption relates directly to fire behavior, effects, and smoke emissions. Our objective was to quantify sparkleberry (Vaccinium arboretum Marshall) shrub fuels…
Author(s): Andrew T. Hudak, Akira Kato, Benjamin C. Bright, E. Louise Loudermilk, Christie M. Hawley, Joseph C. Restaino, Roger D. Ottmar, Gabriel A. Prata, Carlos Cabo, Susan J. Prichard, Eric Rowell, David R. Weise
Year Published:

Values of the public are a key and dynamic component of bushfire governance SES. Learning to work with these values is a significant challenge for government and environmental managers and an important aspect of policy transition in many contexts.…
Author(s): Kathryn J. Williams, Rebecca M. Ford, Andrea Rawluk
Year Published:

Accuracy assessment of burned area maps has been traditionally performed using pixel-based metrics, with the objective of assessing the accuracy and precision of burned area estimates at local and regional scales. While these assessments are helpful…
Author(s): Michael L. Humber, Luigi Boschetti, Louis Giglio
Year Published:

This perspective serves as a preface to the Topical Issue of Fire and presents an opportunity, framed within the classic approach of a thought experiment, to discuss how a new wildfire governance framework may be created from the ground up, if it…
Author(s): Stephen D. Fillmore, Alistair M. S. Smith
Year Published:

This paper presents the results of an explorative survey, based on a questionnaire sent by email, about how wildfire experts, operating in different countries, perceive wildfire and express their mindset by defining “wildfire” from a list of 14…
Author(s): Fantina Tedim, Vittorio Leone
Year Published:

Wildfires are increasingly common in the United States, the result of climate change, altered wildfire regimes, and expanding residential development in close proximity to wildland vegetation. Both suppression expenditures and damages are increasing…
Author(s): Miranda H. Mockrin, Hilary Fishler, Susan I. Stewart
Year Published:

Trees in dry forests often regenerate in episodic pulses when wet periods coincide with ample seed production. Factors leading to success or failure of regeneration pulses are poorly understood. We investigated the impacts of stand thinning on…
Author(s): Thomas E. Kolb, Kelsey Flathers, John Bradford, Caitlin M. Andrews, Lance A. Asherin, W.K. Moser
Year Published:

The 2001 Forest Service Roadless Rule prohibits roadbuilding in forests across an area equivalent to the combined states of New York and Maine (236 000 km2). There have been recent assertions that roads are needed to prevent fire and to keep forests…
Author(s): Sean P. Healey
Year Published:

The mountain pine beetle (MPB) (Dendroctonus ponderosae) is one of the most prevalent disturbance agents in western conifer forests. It utilizes various species of pines (Pinus spp.) as host trees. Eruptive populations can cause extensive tree…
Author(s): Jose F. Negron, Bob Cain
Year Published:

Firebrands are an important agent of wildfire spread and structure fire ignitions at the wildland urban interface. Bark flake morphology has been highlighted as an important yet poorly characterized factor in firebrand generation, transport,…
Author(s): Scott M. Pokswinski, Michael R. Gallagher, Nick Skowronski, E. Louise Loudermilk, Joseph O’Brien, J. Kevin Hiers
Year Published:

Amongst the numerous models introduced with SOC, the Forest Fire Model (FFM) is particularly attractive for its close relationship to stochastic spreading, which is central to the study of systems as diverse as epidemics, rumors, or indeed, fires.…
Author(s): Lorenzo Palmieri, Henrik Jeldtoft Jensen
Year Published:

Stand-replacing fires burned at 100 to 300-year intervals for millennia in subalpine conifer forests of western North America, but forests are burning more frequently as climate warms. Postfire tree regeneration is reduced when young forests reburn…
Author(s): Tyler J. Hoecker, Winslow D. Hansen, Monica G. Turner
Year Published: