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Ecosystem

Displaying 1101 - 1120 of 5953 results

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:

Key to the long-term resilience of dryland ecosystems is the recovery of foundation plant species following disturbance. In ecosystems with high interannual weather variability, understanding the influence of short-term environmental conditions on…
Author(s): Alexandra K. Urza, Peter J. Weisberg, David Board, Jeanne C. Chambers, Stanley G. Kitchen, Bruce A. Roundy
Year Published:

Throughout the United States, wildland firefighters respond to wildfires, performing arduous work in remote locations. Wildfire incidents can be an ideal environment for the transmission of infectious diseases, particularly for wildland firefighters…
Author(s): Kathleen M. Navarro, Kathleen A. Clark, Daniel J. Hardt, Colleen Reid, Peter Lahm, Joseph W. Domitrovich, Corey Butler, John R. Balmes
Year Published:

Significance: The coronavirus pandemic, COVID-19, led to strict social-distancing guidelines that severely impacted human livelihood and economic activity. Workplace closures reduced travel, and early in spring 2020, improvements in air and water…
Author(s): Ben Poulter, Patrick H. Freeborn, William Matt Jolly, J. Morgan Varner
Year Published:

Purpose: To understand the association between heart rate variability and indices of fatigue, total sleep time, and reaction time in shift workers. Methods:Ten participants from the British Columbia Wildfire Service management team were examined…
Author(s): Andrew T. Jeklin, Andrew S. Perrotta, Hugh W. Davies, Shannon S. D. Bredin, Dion A. Paul, Darren E. R. Warburton
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Scarcity in wildland fire progression data as well as considerable uncertainties in forecasts demand improved methods to monitor fire spread in real time. However, there exists at present no scalable solution to acquire consistent information about…
Author(s): Nicholas McCarthy, Ali Tohidi, Yawar Aziz, Matt Dennie, M.M. Valero, Nicole Hu
Year Published:

Dangerous wildfire conditions continue to threaten people and ecosystems across the globe and cooperation is critical to meeting the outsized need for increased prescribed burning in wildfire risk reduction work. Despite the benefits of using…
Author(s): Heidi Huber-Stearns, Anna Santo, Courtney Schultz, Sarah M. McCaffrey
Year Published:

Whitebark pine (Pinus albicaulis) (PIAL) is a proposed threatened species that plays a keystone ecological role in the Greater Yellowstone Ecosystem (GYE). Its population response to climate change is of high interest to managers because climate-…
Author(s): Andrew J. Hansen, Alyson East, Robert E. Keane, Matt Lavin, Kristin Legg, Zachary A. Holden, Chris Toney, Franklin Alongi
Year Published:

Aims:Fire regimes are key drivers of ecosystem dynamics and are changing worldwide. Uncertainty about how fire history affects responses to individual fires hampers predictions of fire impacts on important ecosystem functions such as C cycling. Thus…
Author(s): Ingrid J. Slette, Alannah Liebert, Alan K. Knapp
Year Published:

Extensive, severe wildfires, and wildfire‐induced smoke occurred across the western and central United States since August 2020. Wildfires resulting in the loss of habitats and emission of particulate matter and volatile organic compounds pose…
Author(s): Di Yang, Anni Yang, Jue Yang, Rongting Xu, Han Qiu
Year Published:

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
Year Published: