Skip to main content

Search by keywords, or use filters to narrow down results by type, topic, or ecosystem.

Document Type

Topic

Ecosystem

Displaying 1521 - 1540 of 5894 results

This study examines 95 lightning-initiated wildfires and 1170 lightning flashes in the western United States between May and October 2017 to characterize lightning and precipitation rates and totals near the time of ignition. Eighty-nine percent of…
Author(s): Brittany R. MacNamara, Christopher J. Schultz, Henry E. Fuelberg
Year Published:

The ‘Balbi model’ is a simplified steady-state physical propagation model for surface fires that considers radiative heat transfer from the surface area of burning fuel particles as well as from the flame body. In this work, a completely new version…
Author(s): Jacques Henri Balbi, François Joseph Chatelon, D. Morvan, Jean Louis Rossi, Thierry Marcelli, Frederic Morandini
Year Published:

The structure and composition of sagebrush‐dominated ecosystems have been altered by changes in fire regimes, land use, invasive species, and climate change. This often decreases resilience to disturbance and degrades critical habitat for species of…
Author(s): Lisa M. Ellsworth, J. Boone Kauffman, Schyler A. Reis, David B. Sapsis, Kendra Moseley
Year Published:

With the effects of climate change expected to intensify over the coming century, land managers will require more proactive and novel approaches to conserve and restore threatened ecosystems. In the US Intermountain West, quaking aspen (Populus…
Author(s): Alexander A. Howe, Simon M. Landhäusser, Owen T. Burney, James N. Long, Randall D. Violett, Karen Mock
Year Published:

Aerial Thermal Infrared (TIR) imagery has demonstrated tremendous potential to monitor active forest fires and acquire detailed information about fire behavior. However, aerial video is usually unstable and requires inter-frame registration before…
Author(s): M.M. Valero, Steven Verstockt, Christian Mata, Daniel M. Jimenez, Lloyd P. Queen, O. Rios, Elsa Pastor, Eulalia Planas
Year Published:

This is the first part of two papers concerning fire-spotting generated fires. In this part we deal with the impact of macroscale factors, such as the atmospheric stability, and in the second part we deal with mesoscale factors, such as the flame…
Author(s): Vera N. Egorova, Andrea Trucchia, Gianni Pagnini
Year Published:

A learning-based wildfire spread model was developed in this study to predict short-term wildfire spread. Real-time rate of spread (RoS) measurement was first conducted by calculating normal movements of fire fronts. Subsequently, machine learning…
Author(s): Chunjie Zhai, Siyu Zhang, Zhaolou Cao, Xinmeng Wang
Year Published:

Fire severity assessment is crucial for predicting ecosystem response and prioritizing post-fire forest management strategies. Although a variety of remote sensing approaches have been developed, more research is still needed to improve the accuracy…
Author(s): Raquel Montorio Llovería, Fernando Pérez-Cabello, Daniel Borini Alves, Alberto García-Martín
Year Published:

Complex, reciprocal interactions among climate, disturbance, and vegetation dramatically alter spatial landscape patterns and influence ecosystem dynamics. As climate and disturbance regimes shift, historical analogs and past empirical studies may…
Author(s): Rachel A. Loehman, Robert E. Keane, Lisa M. Holsinger
Year Published:

Field measurements of surface dead fine fuel moisture content (FFMC) are integral to wildfire management, but conventional measurement techniques are limited. Automated fuel sticks offer a potential solution, providing a standardised, continuous and…
Author(s): Jane G. Cawson, Petter Nyman, Christian Schunk, Gary J. Sheridan, Thomas J. Duff, Kelsy E. Gibos, William D. Bovill, Marco Conedera, Gianni B. Pezzatti, Annette Menzel
Year Published:

The simultaneous occurrence of wildfire can hinder firefighting effectiveness via multiple mechanisms that might explain historical resource demand trends. We validate this hypothesis by using data from the Monitoring Trends in Burn Severity (MTBS)…
Author(s): Harry Podschwit, Alison Cullen
Year Published:

Over the last decades, the different issues regarding the expansion of the wildland-urban interface (WUI) - particularly those related to fires - have spread around the world with particular exposure in the USA, Canada, Australia, and, more recently…
Author(s): A. Bento-Gonçalves, A. Vieira
Year Published:

Understanding the detailed physical and social context surrounding wildfire and WUI fire fatalities is crucial in terms of ensuring effective emergency management policy and practice. Studies of fatalities over prolonged periods ensure changing…
Author(s): Katharine Haynes, Karen C. Short, Gavriil Xanthopoulos, Domingos Xavier Viegas, Luís M. Ribeiro, Raphaele M. Blanchi
Year Published:

Beaver dams are gaining popularity as a low‐tech, low‐cost strategy to build climate resiliency at the landscape scale. They slow and store water that can be accessed by riparian vegetation during dry periods, effectively protecting riparian…
Author(s): Emily Fairfax, Andrew Whittle
Year Published:

Pyrogenic carbon (PyC) is a chemically stable form of carbon (C) generated during fire events and is one of the few legacies of fire recorded in soil; however, the significance of this material as a form of C storage in forest ecosystems has…
Author(s):
Year Published:

Local and regional species extirpations may become more common as changing climate and disturbance regimes accelerate species’ in situ range contractions. Identifying locations that function as both climate and disturbance refugia is critical for…
Author(s): William M. Downing, James D. Johnston, Meg A. Krawchuk, Andrew G. Merschel, Joseph H. Rausch
Year Published:

Forests of the western U.S. are undergoing substantial stress from fire exclusion and increasing effects of climate change, altering ecosystem functions and processes. Changes in broad‐scale drivers of forest community composition become apparent in…
Author(s): Laura A. Marshall, Donald A. Falk
Year Published:

In wildland and other flame spread scenarios a spreading fire front often forms an elliptical shape, incorporating both forward and lateral spread. While lateral flame spread is much slower than forward rates of spread, it still contributes to the…
Author(s): Kun Zhao, Michael J. Gollner, Qiong Liu, Junhui Gong, Lizhong Yang
Year Published:

Background: Wildfires produce pyrogenic carbon (PyC) through the incomplete combustion of organic matter, and its chemical characterization is critical to understanding carbon (C) budgets and ecosystem functions in forests. Across western North…
Author(s): Anna C. Talucci, Lauren M. Matosziuk, Jeff A. Hatten, Meg A. Krawchuk
Year Published:

Key message: We have explored the impacts of forest thinning on wildland fire behavior using a process based model. Simulating different degrees of thinning, we found out that forest thinning should be conducted cautiously as there could be a wide…
Author(s): Tirtha Banerjee
Year Published: