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Ecosystem

Displaying 1121 - 1140 of 5991 results

Fires, among other forms of natural and anthropogenic disturbance, play a central role in regulating the location, composition and biomass of forests. Understanding the role of fire in global forest loss is crucial in constraining land‐use change…
Author(s): Dave van Wees, Guido R. Van der Werf, James T. Randerson, Niels Andela, Yang Chen, Douglas C. Morton
Year Published:

Complexity is the main feature of many fire-prone environments, in which the fire regime is driven by climate and socio-economic development on short and long timescales. In this study, the interaction between social and forest environments is…
Author(s): Nadia Ursino
Year Published:

Traditional fire smoke detection methods mostly rely on manual algorithm extraction and sensor detection; however, these methods are slow and expensive to achieve discrimination. We proposed an improved convolutional neural network (CNN) to achieve…
Author(s): Xiaofang Sun, Liping Sun, Yinglai Huang
Year Published:

Aim: Pyrodiversity is the spatial or temporal variability in fire effects across a land- scape. Multiple ecological hypotheses, when applied to the context of post- fire sys- tems, suggest that high pyrodiversity will lead to high biodiversity. This…
Author(s): Gavin M. Jones, Morgan W. Tingley
Year Published:

The globe is struggling with concurrent planetary health emergencies: COVID-19 and wildfires worsened by human activity. Unfortunately, a lack of awareness of climate change as a health issue, as well as of the interconnections between biodiversity…
Author(s): Attila J. Hertelendy, Courtney Howard, Roberto de Almeida, Kate Charlesworth, Lwando Maki
Year Published:

The world´s forests are one of the largest carbon sinks, making a substantial contribution to counterbalance the increase in atmospheric carbon from anthropogenic sources (Bastin et al., 2019). For this reason, there is broad support to forest…
Author(s): Virgilio Hermoso, Adrián Regos, Alejandra Morán-Ordoñez, Andrea Duane, Lluis Brotons
Year Published:

To support improved wildfire incident decision-making, in 2017 the US Forest Service (Forest Service) implemented risk-informed tools and processes, together known as Risk Management Assistance (RMA). The Forest Service is developing tools such as…
Author(s): Courtney Schultz, Lauren Miller, S. Michelle Greiner, Chad Kooistra
Year Published:

Recent extreme wildfire seasons in the United States (US) have rekindled policy debates about the underlying drivers and potential role forest management can play in reducing fuels and future wildfire. Most US western national forests face a…
Author(s): Pedro Belavenutti, Woodam Chung, Alan A. Ager
Year Published:

Increasing drought and changing temperatures drive researchers to seek more efficient and effective means to aid management of coniferous forests across the western United States. Thinning allows for effective removal of biomass, but with few…
Author(s): Christine M. Mott, Richard Hofstetter, Anita Antoninka
Year Published:

To support improved wildfire incident decision-making, in 2017 the US Forest Service (Forest Service) implemented risk-informed tools and processes, together known as Risk Management Assistance (RMA). The Forest Service is developing tools such as…
Author(s): Courtney Schultz, Lauren Miller, S. Michelle Greiner, Chad Kooistra
Year Published:

Fire spread occurs via radiation, flame contact, and firebrands. While firebrand showers are known to be a cause of spot fires which ignite fuels far from the main fire front, in the case of short distance spot fires, radiation from the main fire…
Author(s): Sayaka Suzuki, Sam Manzello
Year Published:

Context:Landscape and local factors govern tree regeneration across heterogeneous post-fire forest environments. But their relative influence is unclear—limiting the degree that managers can consider landscape context when delegating resources to…
Author(s): Jamie L. Peeler, Erica A. H. Smithwick
Year Published:

National forests in the western United States are divided roughly in half between lands without roads managed for wilderness characteristics and lands with an extensive road system managed for multiple uses including resource extraction. We…
Author(s): James D. Johnston, John B. Kilbride, Garrett W. Meigs, Christopher J. Dunn, Robert E. Kennedy
Year Published:

Objective:To identify physiologic stressors related to cardiovascular disease via changes in metabolic, inflammatory, and oxidative stress biomarkers during 2 weeks of preseason training in wildland firefighters (WLFFs). Methods:Participants were…
Author(s): Shae Gurney, Katherine Christison, Cassie M. Williamson-Reisdorph, Joseph A. Sol, Tiffany S. Quindry, John C. Quindry, Charles L. Dumke
Year Published:

Runoff and erosion processes can increase after wildfire and post‐fire salvage logging, but little is known about the specific effects of soil compaction and surface cover after post‐fire salvage logging activities on these processes. We carried out…
Author(s): Sergio A. Prats, Maruxa C. Malvar, Joseph W. Wagenbrenner
Year Published:

Woody plant expansions are altering ecosystem structure and function, as well as fire regimes, around the globe. Tree‐reduction treatments are widely implemented in expanding woodlands to reduce fuel loads, increase ecological resilience, and…
Author(s): Stephanie M. Freund, Beth A. Newingham, Jeanne C. Chambers, Alexandra K. Urza, Bruce A. Roundy, J. Hall Cushman
Year Published:

Determining whether forest landscapes can maintain their resilience to fire–that is, their ability to rebound and sustain their current composition and structure–in the face of rapid climate change and increasing fire activity is a pressing…
Author(s): Monica G. Turner, Adena R. Rissman, Anthony L. Westerling, Rupert Seidl
Year Published:

Decision support systems (DSSs) are increasingly common in forest and wildfire planning and management in the United States. Recent policy direction and frameworks call for collaborative assessment of wildfire risk to inform fuels treatment…
Author(s): Melanie M. Colavito
Year Published:

In the near future, a higher occurrence of wildfires is expected due to climate change, carrying social, environmental, and economic implications. Such impacts are often associated with an increase of post‐fire hydrological and erosive responses,…
Author(s): Ana Rita Lopes, Antonio Girona-García, Sofia Corticeiro, Ricardo Martins, Jan J. Keizer
Year Published:

Recent wildland fire disasters have attracted interest from a variety of disciplines seeking to reduce impacts of fire on people and natural resources. Architecture, insurance and reinsurance, city and county government, and engineering sectors have…
Author(s): Mark A. Finney
Year Published: