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Ecosystem

Displaying 1601 - 1620 of 5893 results

Previous estimates of greenhouse gas emissions from Australian savanna fires have incorporated on-ground dead wood but ignored standing dead trees. However, research from eucalypt woodlands in southern Queensland has shown that the two pools of dead…
Author(s): Garry D. Cook, Adam C. Liedloff, Carl P. Meyer, Anna E. Richards, Steven G. Bray
Year Published:

We examined the seasonal distribution of lightning- and human-caused wildfires ≥ 2 ha in Canada for two time periods: 1959-2018 and 1981-2018. Furthermore, we investigated trends in seasonality, number of fires per year and number of days with fire…
Author(s): Sean C. P. Coogan, Xinli Cai, Piyush Jain, Michael D. Flannigan
Year Published:

A systematic visualisation system that can image the visible flame, invisible hot gas and the wood surface temperature, was applied to study self-sustained fire propagation in a wood rod at different inclination angles. It was found that the burned…
Author(s): Yufeng Lai, Xiao Wang, Thomas B.O. Rockett, Jon R. Willmott, Hangxu Zhou, Yang Zhang
Year Published:

There is limited research on recreationists’ responses to changes in resource conditions after wildfire. Existing studies often rely on presenting visitors with hypothetical wildfire scenarios or simulated changes in conditions. We completed a quick…
Author(s): Eric M. White, Terry R. Bergerson, Elliot T. Hinman
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:

With climate-driven increases in wildfires in the western U.S., it is imperative to understand how the risk to homes is also changing nationwide. Here, we quantify the number of homes threatened, suppression costs, and ignition sources for 1.6…
Author(s): Nathan Mietkiewicz, Jennifer Balch, Tania L. Schoennagel, Stefan Leyk, Lise A. St. Denis, Bethany A. Bradley
Year Published:

Changing disturbance regimes and climate can overcome forest ecosystem resilience. Following high-severity fire, forest recovery may be compromised by lack of tree seed sources, warmer and drier postfire climate, or short-interval reburning. A…
Author(s): Jonathan D. Coop, Sean A. Parks, Camille Stevens-Rumann, Shelley Crausbay, Philip E. Higuera, Matthew D. Hurteau, Alan J. Tepley, Ellen Whitman, Timothy J. Assal, Brandon M. Collins, Kimberley T. Davis, Solomon Z. Dobrowski, Donald A. Falk, Paula J. Fornwalt, Peter Z. Fule, Brian J. Harvey, Van R. Kane, Caitlin E. Littlefield, Ellis Q. Margolis, Malcolm P. North, Marc-Andre Parisien, Susan J. Prichard, Kyle Rodman
Year Published:

Wildfire increases the potential connectivity of runoff and sediment throughout watersheds due to greater bare soil, runoff and erosion as compared to pre‐fire conditions. This research examines the connectivity of post‐fire runoff and sediment from…
Author(s): Codie Wilson, Stephanie Kampf, Sandra E. Ryan-Burkett, Tim Covino, Lee H. MacDonald, Hunter Gleason
Year Published:

Cheatgrass and other invasive annual grasses, such as medusahead and ventenata, are taking over America’s sagebrush rangelands, increasing wildfire size and frequency, reducing forage productivity, and threatening wildlife habitat and rural…
Author(s):
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There is a growing interest by governments and academics in including Indigenous knowledge alongside scientific knowledge in environmental management, including monitoring. Given this growing interest, a critical review of how Indigenous peoples…
Author(s): Kim-Ly Thompson, Trevor C. Lantz, Natalie C. Ban
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:

Background: A fire management strategy of deliberate patch-mosaic burning (PMB) is postulated to promote biodiversity by providing a range of habitat patches with different fire histories, habitat qualities, and vegetation ages at a given scale. We…
Author(s): Allan J. Wills, Graeme Liddelow, Verna Tunsell
Year Published:

Large wildfires (>50,000 ha) are becoming increasingly common in semi‐arid landscapes of the western United States. Although fuel reduction treatments are used to mitigate potential wildfire effects, they can be overwhelmed in wind‐driven…
Author(s): Susan J. Prichard, Nicholas A. Povak, Maureen C. Kennedy, David W. Peterson
Year Published:

A risk-based framework for targeting investment in prescribed burning in Western Australia is presented. Bushfire risk is determined through a risk assessment and prioritisation process. The framework provides principles and a rationale for…
Author(s): Trevor Howard, Neil D. Burrows, Tony Smith, Glen Daniel, Lachlan McCaw
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:

The 3D structure of a fire front propagating through a homogeneous porous solid-fuel layer was studied numerically at laboratory and field scales. At laboratory scale, wind-tunnel fires propagating through laser-cut cardboard fuel were numerically…
Author(s): N. Frangieh, Gilbert Accary, D. Morvan, Sofiane Meradji, Oleg Bessonov
Year Published:

The potential for prescribed fire to address fuel management and forest restoration goals has received considerable attention. However, many wildfire risk mitigation practitioners and researchers consider prescribed fire to be an underutilized tool…
Author(s): Matthew Hamilton, Jonathan D. Salerno
Year Published:

In this issue, we include topics from the importance of biocrusts on invasive versus native plant establishment, effects of dryland restoration on invasive plants, using native seed mixes (rather than nonnative grass mixes) to inhibit cheatgrass…
Author(s): Justin B. Runyon
Year Published:

Harnessing the fire data revolution, i.e., the abundance of information from satellites, government records, social media, and human health sources, now requires complex and challenging data integration approaches. Defining fire events is key to…
Author(s): Jennifer Balch, Lise A. St. Denis, Adam L. Mahood, Nathan Mietkiewicz, Travis M. Williams, Joe McGlinchy, Maxwell C. Cook
Year Published:

We used a chronosequence approach to investigate the relationship between existing conditions of forested land that burned at some point between 1984 and 2014 in western Montana and the abundances of various bird species based on 7533 point-counts.…
Author(s): Richard L. Hutto, Russell R. Hutto, Paul L. Hutto
Year Published: