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Ecosystem

Displaying 1101 - 1120 of 5894 results

Large areal fires, such as those ignited following a nuclear detonation, can inject smoke into the upper troposphere and lower stratosphere. Detailed fire simulations allow for assessment of how local weather interacts with these fires and affects…
Author(s): Stephanie Redfern, Julie Lundquist, Owen B. Toon, Domingo Muñoz-Esparza, Charles G. Bardeen
Year Published:

Large and severe wildfires are becoming increasingly common worldwide and are having extraordinary impacts on people and the species and ecosystems on which they depend. Indigenous peoples comprise only 5% of the world’s population but protect…
Author(s): Kira M. Hoffman, Emma L. Davis, Sara B. Wickham, Kyle Schang, Alexandra Johnson, Taylor Larking, Patrick N. Lauriault, Nhu Quynh Le, Emily Swerdfager, Andrew J. Trant
Year Published:

Global change has resulted in chronic shifts in fire regimes. Variability in the sensitivity of tree communities to multi-decadal changes in fire regimes is critical to anticipating shifts in ecosystem structure and function, yet remains poorly…
Author(s): Adam F. A. Pellegrini, Tyler Refsland, Colin Averill, Cesar Terrer, Monica G. Turner, J. Morgan Varner
Year Published:

Over millennia, many indigenous and Tribal peoples in North America’s fire-prone ecosystems developed sophisticated relationships with wildland fire that continue today. This article introduces philosophical, conceptual, and operational approaches…
Author(s): Frank K. Lake
Year Published:

Altered climate, including weather extremes, can cause major shifts in vegetative recovery after disturbances. Predictive models that can identify the separate and combined temporal effects of disturbance and weather on plant communities and that…
Author(s): Cara Applestein, T. Trevor Caughlin, Matthew J. Germino
Year Published:

During wildfire season in the western US, fire retardant chemicals are dropped from aircraft in an effort to control the spread of fire. Fire retardant dropped on sites that are not actively burning results in exceptionally high soil nitrogen (N)…
Author(s): Si Gao, Thomas H. DeLuca
Year Published:

Private landowners are important actors in landscape-level wildfire risk management. Accordingly, wildfire programs and policy encourage wildland–urban interface homeowners to engage with local organizations to properly mitigate wildfire risk on…
Author(s): James R. Meldrum, Hannah Brenkert-Smith, Patricia A. Champ, Jamie Gomez, Hilary Byerly, Lilia C. Falk, Christopher M. Barth
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Wildfires in forest ecosystems have been well studied, while wildfires in rangelands ecosystems have received less attention. This study evaluated temporal trends of large wildfires on rangelands in western US from 1984 to 2017, using the Monitoring…
Author(s): Zheng Li, Jay P. Angerer, X. Ben Wu
Year Published:

Question: Northern peatlands are increasingly threatened by wildfire. Severe peatland wildfires can provide opportunities for new non-peatland species to colonise post-fire. Changes in plant colonisation could lead to longer-term shifts in community…
Author(s): Harry E. R. Shepherd, Jane A. Catford, Magda N. Steele, Marc G. Dumont, Robert T. E. Mills, Paul D.M. Hughes, Bjorn J. M. Robroek
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The Enemy Release Hypothesis proposes that invasion by exotic plant species is driven by their release from natural enemies (i.e. herbivores and pathogens) in their introduced ranges. However, in many cases, natural enemies, which may be introduced…
Author(s): Cara Applestein, Allison B. Simler-Williamson, Matthew J. Germino
Year Published:

This data publication contains a spatial database of wildfires that occurred in the United States from 1992 to 2018. It is the fourth update of a publication originally generated to support the national Fire Program Analysis (FPA) system. The…
Author(s): Karen C. Short
Year Published:

Simulation is used to predict the spread of a wildland fire across land in real-time. Nevertheless, the large uncertainties in these simulations must be quantified in order to provide better information to fire managers. Ensemble forecasts are…
Author(s): Frédéric Allaire, Vivien Mallet, Jean-Baptiste Filippi
Year Published:

A consensus about the fire-related soil carbon (C) and nitrogen (N) impacts that determine soil health and ecosystem services at the global scale remains elusive. Here, we conducted a global meta-analysis of 3173 observations with 1444, 1334, 228…
Author(s): Jinquan Li, Junmin Pei, Jiajia Liu, Jihua Wu, Bo Li, Changming Fang, Ming Nie
Year Published:

Research about soil hydrology after wildfire has widely investigated the impacts of many post-fire management strategies on ecosystems with different characteristics. However, despite this ample literature, clear guidelines about the effectiveness…
Author(s): Demetrio Antonio Zema
Year Published:

A method for the large-eddy simulation (LES) of wildfire spread over complex terrain is presented. In this scheme, a cut-cell immersed boundary method (CC-IBM) is used to render the complex terrain, defined by a tessellation, on a rectilinear…
Author(s): Marcos Vanella, Kevin B. McGrattan, Randall McDermott, Glenn P. Forney, William E. Mell, Emanuele Gissi, Paolo Fiorucci
Year Published:

For over 20 years, forest fuel reduction has been the dominant management action in western US forests. These same actions have also been associated with the restoration of highly altered frequent-fire forests. Perhaps the vital element in the…
Author(s): Scott L. Stephens, Michael A. Battaglia, Derek J. Churchill, Brandon M. Collins, Michelle Coppoletta, Chad M. Hoffman, Jamie M. Lydersen, Malcolm P. North, Russell A. Parsons, Scott M. Ritter, Jens T. Stevens
Year Published:

Wildfire is a major driver of nitrogen (N) cycling and export from terrestrial to aquatic systems. While fire is a natural process in many watersheds, it can still degrade water quality by rapidly flushing N to streams. This can be particularly…
Author(s): Rebecca N. Gustine, Erin J. Hanan, Peter R. Robichaud, William J. Elliot
Year Published:

The Fireshed Registry is an interactive geospatial data portal providing access to data describing past, present, and future trends regarding wildfire exposure to communities and forest and fuel management. The registry employs a nested spatial…
Author(s): Alan A. Ager, Michelle A. Day, Chris Ringo, Cody Evers, Fermin Alcasena-Urdiroz, Rachel M. Houtman, Michael Scanlon, Tania Ellersick
Year Published:

Increased demand for timber, the reduction in the available timber resources, and more frequent and severe forest fires under a changing climate have increased the use of salvage logging in North American forests despite concerns regarding impacts…
Author(s): Fidèle Bognounou, Lisa A. Venier, Steven L. Van Wilgenburg, Isabelle Aubin, Jean-Noel Candau, Andre Arsenault, Christian Hebert, Jacques Ibarzabal, Samantha J. Song, Louis De Grandpré
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In recent years Unmanned Aerial Vehicles (UAVs) have progressively been utilized for wildfire management, and are especially in prevalent in forest fire monitoring missions. To ensure the fast detection and accurate area estimation of forest fires,…
Author(s): Mrinmoy Sarkar, Xuyang Yan, Berat A. Erol, Ioannis Raptis, Abdollah Homaifar
Year Published: