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Ecosystem

Displaying 1641 - 1660 of 6067 results

Large outdoor fires are an increasing danger to the built environment. Wildfires that spread into communities, labeled as Wildland-Urban Interface (WUI) fires, are an example of large outdoor fires. Other examples of large outdoor fires are urban…
Author(s): Sam Manzello, Sayaka Suzuki, Michael J. Gollner, A. Carlos Fernandez-Pello
Year Published:

Wildfires shape landscapes and ecosystems, affecting health and infrastructure. Understanding the complex interactions between social organization, human activity and the natural environment that drive wildfire occurrence is becoming increasingly…
Author(s): Yiannis Kountouris
Year Published:

Large outdoor fires are one of the prominent fire problems in the world. Spot fires, caused by firebrands, are known as a key mechanism of rapid fire spread. Firebrands ignite unburned fuels far ahead of the fire front. In large outdoor fires,…
Author(s): Sayaka Suzuki, Sam Manzello
Year Published:

Whitebark pine (Pinus albicaulis) is a critical forest species of Northern Rocky Mountain upper subalpine ecosystems, yet little is known about the physiological response of whitebark pine to disturbance (e.g. fire, bark beetles, and pathogens)…
Author(s): Nickolas E. Kichas, Sharon M. Hood, Gregory T. Pederson, Richard G. Everett, Dave McWethy
Year Published:

Questions: Increased wildfire activity is resulting in plant community‐type conversions worldwide. In some regions, fire‐sensitive forests are being replaced by flammable fire‐resilient communities, increasing the likelihood of reburning due to…
Author(s): Jennifer B. Landesmann, Florencia Tiribelli, Juan Paritsis, Thomas T. Veblen, Thomas Kitzberger
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Novel combinations of fire regime and forest type are emerging in areas affected by climate change, fire exclusion, and other stressors. Species interactions following wildfire in these areas are not well understood. In Sierra Nevada mixed conifer…
Author(s): Carmen L. Tubbesing, Scott L. Stephens
Year Published:

Seasonal peaks of air pollution from wildfires are increasing in frequency and severity in the western provinces of Canada. During these episodes, populations are exposed to adverse short-term health effects due to elevated levels of fine…
Author(s): Mojgan Mirzaei, Stefania Bertazzon, Isabelle Couloigner, Babak Farjad, Roland Ngom
Year Published:

Forest fires are common large-scale environmental disasters with annual death toll and damages on the scale of tens of billions of dollars. They leave scars visible from space. In the context of climate change, forest fire severity is predicted to…
Author(s): W. Zhang, E. Zussman, A. L. Yarin
Year Published:

Accumulation of dead woody material is a critical management concern following wildfires, especially given the possibility of subsequent wildfires. Forest structure and fuel accumulation are largely driven by site climatic conditions, so variability…
Author(s): Camille Stevens-Rumann, Andrew T. Hudak, Penelope Morgan, Alex Arnold, Eva K. Strand
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Wildfires are exorbitantly cataclysmic disasters that lead to the destruction of forest cover, wildlife, land resources, human assets, reduced soil fertility and global warming. Every year wildfires wreck havoc across the globe. Therefore, there is…
Author(s): Harkiran Kaur, Sandeep K. Sood
Year Published:

As bias and uncertainties inevitably exist on both wildland fire model states and parameters, fire simulations do not always accurately forecast the temporal and spatial progression of wildfires. In this paper, a novel approach is proposed to…
Author(s): Tengjiao Zhou, Long Ding, Jie Ji, Longxing Yu, Zhen Wang
Year Published:

Background: Wildfires affect vegetation structure, functions, and other attributes of forest ecosystems. Among these attributes, bird assemblages may be influenced by the distance from undisturbed to fire-disturbed forests. Information about this…
Author(s): Adriana Marisel Morales, Natalia Politi, Luis Osvaldo Rivera, Constanza Guadalupe Vivanco, Guillermo E. Defosse
Year Published:

Inhaling wildfire smoke can be harmful, but smoke from unintended wildfires may be worse than smoke from prescribed burns, according to a study published in 2019. That means the health risks from wildfires — like the ones that have destroyed…
Author(s): Casey Crownhart
Year Published:

Clark's nutcracker (Nucifraga columbiana) functions as a keystone seed disperser and ecological mobile link for many western conifers. The bird is the primary seed disperser for limber pine (Pinus flexilis), which is an important seed resource for…
Author(s): Tyler J. Williams, Diana F. Tomback, Nels Grevstad, Kristin Broms
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This study provides much needed insight into the development of resistance to disturbance and growth dynamics of overstory trees in response to restoration-based fuel reduction, and will be useful to scientists and managers attempting to better…
Author(s): Justin S. Crotteau, Christopher R. Keyes
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Boreal peatlands represent a significant global store of soil carbon, which are subject to increasing natural and anthropogenic disturbance. Wildfire is the single largest disturbance to boreal forest and wetlands annually. Critical to the long‐term…
Author(s): Matthew Q. Morison, Richard M. Petrone, Sophie L. Wilkinson, A. Green, James M. Waddington
Year Published:

Public opinion of wildfire is often perceived to be negative and in support of fire suppression, even though research suggests public opinions have become more positive over the past few decades. However, most prior work on this topic has focused on…
Author(s): Alexandra Weill, Lauren M. Watson, Andrew Latimer
Year Published:

Pyrolysis is a key process in all stages of wood burning from ignition to extinction. Understanding each stage is crucial to tackle wildfires and assess the fire safety of timber buildings. A model of appropriate complexity of wood pyrolysis and…
Author(s): Franz Richter, Guillermo Rein
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
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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: