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Ecosystem

Displaying 1001 - 1020 of 5894 results

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:

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:

For over 100 years, the US Forest Service (USFS) has developed initiatives to improve safety outcomes. Herein we discuss the engineered solutions used from 1910 through 1994, when the agency relied on physical science to address the hazards of…
Author(s): David Flores
Year Published:

Climate change is projected to exacerbate the intensity of heat-waves and drought, leading to greater incidences of large and high-intensity wildfires in forested ecosystems. While commonly-used remotely-sensed spectral assessments can provide…
Author(s): Alex W. Kirkpatrick
Year Published:

A long-term study at Lick Creek demonstrates how fuel treatments in dry forests provide benefits beyond mitigating the chance of a high-severity fire.
Author(s): Nehalem C. Clark
Year Published:

The dead foliage of scorched crowns is one of the most conspicuous signatures of wildland fires. Globally, crown scorch from fires in savannas, woodlands, and forests causes tree stress and death across diverse taxa. The term crown scorch, however,…
Author(s): J. Morgan Varner, Sharon M. Hood, Doug P. Aubrey, Kara M. Yedinak, J. Kevin Hiers, William Matt Jolly, Timothy M. Shearman, Jennifer K. McDaniel, Joseph J. O'Brien, Eric Rowell
Year Published:

Wildfire disasters on overhead transmission lines seriously threaten the safe and stable operation of large power grids and the normal use of electricity. After a wildfire occurs near a transmission line, it is often inefficient to take measures…
Author(s): Yu Liu, Bo Li, ChuanPing Wu, Baohui Chen, TeJun Zhou
Year Published:

Common land-surface disturbances in rangelands with potential to influence the resistance and resilience of the ecosystem include livestock grazing and fire. The impact of these land-use disturbances on the soil microbial community is important to…
Author(s): Jacob Comer, Lora Perkins
Year Published: