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Ecosystem

Displaying 1821 - 1840 of 6067 results

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
Year Published:

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:

Boreal forest and tundra biomes are key components of the Earth system because the mobilization of large carbon stocks and changes in energy balance could act as positive feedbacks to ongoing climate change. In Alaska, wildfire is a primary driver…
Author(s): Tyler J. Hoecker, Philip E. Higuera, Ryan Kelly, Feng Sheng Hu
Year Published:

Monte Carlo simulations using wildland fire spread models have been conducted to produce numerical estimates of fire likelihood, project potential fire effects, and produce event sets of realistic wildfires (Parisien et al., 2019). The application…
Author(s): Marc-Andre Parisien, Alan A. Ager, Ana M. G. Barros, Denyse A. Dawe, Sandy Erni, Mark A. Finney, Charles W. McHugh, Carol Miller, Sean A. Parks, Karen L. Riley, Karen C. Short, Christopher A. Stockdale, Xianli Wang, Ellen Whitman
Year Published:

Increases in burned area across the western US since the mid‐1980’s have been widely documented and linked partially to climate factors, yet evaluations of trends in fire severity are lacking. Here, we evaluate fire severity trends and their…
Author(s): Sean A. Parks, John T. Abatzoglou
Year Published:

To inform future restoration efforts, we reviewed the known effects of fire and habitat management and restoration on hummingbirds in four key habitat types in North America. We examined seven species that most commonly occur west of the Rocky…
Author(s): John D. Alexander, Elizabeth Williams, Caitlyn R. Gillespie, Sarahy Contreras-Martínez, Deborah M. Finch
Year Published:

Prescribed burning is used in Australia as a tool to manage fire risk and protect assets. A key challenge is deciding how to arrange the burns to generate the highest benefits to society. Studies have shown that prescribed burning in the wildland–…
Author(s): Veronique Florec, Michael P. Burton, David J. Pannell, Joel K. Kelso, George J. Milne
Year Published:

The Smoke and Roadway Safety Guide provides wildland fire personnel the tools and methods to effectively plan and forecast for roadway smoke impacts and to monitor, respond to, and mitigate smoke on roadways to reduce the risk to the public and fire…
Author(s): Gary M. Curcio, David Mueller, Peter Lahm, Mark Fitch, Joshua C. Hyde
Year Published:

With the past century of fire suppression in ponderosa pine (Pinus ponderosa) forests, there has been an accumulation of surface fuels, causing decreases in understory vegetation and increasing high severity fire risk. However, fire size and…
Author(s): Eva K. Strand, Jessie M. Dodge
Year Published:

Knowledge of how disturbances such as fire shape habitat structure and composition, and affect animal interactions, is fundamental to ecology and ecosystem management. Predators also exert strong effects on ecological communities, through top‐down…
Author(s): William L. Geary, Tim S. Doherty, Dale G. Nimmo, Ayesha I. T. Tulloch, Euan G. Ritchie
Year Published:

Background: Wildfire events are increasing in prevalence in the western United States. Research has found mixed results on the degree to which exposure to wildfire smoke is associated with an increased risk of mortality. Methods: We tested for an…
Author(s): Annie Doubleday, Jill Schulte, Lianne Sheppard, Matthew C. Kadlec, Ranil Dhammapala, Julie Fox, Tania M. Busch Isaksen
Year Published:

Worldwide, regularly recurring wildfires shape many peatland ecosystems to the extent that fire‐adapted species often dominate plant communities, suggesting that wildfire is an integral part of peatland ecology rather than an anomaly. The most…
Author(s): Neal E. Flanagan, Hongjun Wang, Scott Winton, Curtis J. Richardson
Year Published:

Exotic grasses are a widespread set of invasive species that are notable for their ability to significantly alter key aspects of ecosystem function. Understanding the role and importance of these invaders in forested landscapes has been limited but…
Author(s): Becky K. Kerns, Claire Tortorelli, Michelle A. Day, Ty Nietupski, Ana M. G. Barros, John Kim, Meg A. Krawchuk
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:

Accumulating data indicate the importance of fire in rangeland systems. Mowing is a common management technique sometimes considered a surrogate for fire. However, direct comparisons of fire and mowing effects are limited. Our objective was to…
Author(s): Lance T. Vermeire, Dustin J. Strong, Emily A. Gates, Clayton B. Marlow, Richard C. Waterman
Year Published:

Climates—especially seasonal and long‐term droughts—and fuel loads combine to determine risks of wildfires across much of Australia. Here we illustrate how long‐term accumulations of fuel combined with a serious drought to drive the behaviour and…
Author(s): Mark A. Adams, Majid Shadmanroodposhti, Mathias Neumann
Year Published:

After generations of fire-suppression policy, Indigenous fire management (IFM) is being reactivated as one way to mitigate wildfire in fire-prone ecosystems. Research has documented that IFM also mitigates carbon emissions, improves livelihoods and…
Author(s): William Nikolakis, Emma Roberts, Ngaio Hotte, Russell Myers Ross
Year Published:

A simple, easy-to-evaluate, surrogate model was developed for predicting the particle emission source term in wildfire simulations. In creating this model, we conceptualized wildfire as a series of flamelets, and using this concept of flamelets, we…
Author(s): Alexander J. Josephson, Troy M. Holland, Sara Brambilla, Michael J. Brown, Rodman Linn
Year Published:

Improving decision processes and the informational basis upon which decisions are made in pursuit of safer and more effective fire response have become key priorities of the fire research community. One area of emphasis is bridging the gap between…
Author(s): Francisco Rodriguez y Silva, Christopher D. O'Connor, Matthew P. Thompson, Juan Ramón Molina Martínez, David E. Calkin
Year Published: