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Ecosystem

Displaying 1141 - 1160 of 5894 results

In recent years wildland fires in the United States have had significant impacts on local and regional air quality and negative human health outcomes. Although the primary health concerns from wildland fires come from fine particulate matter (PM2:5…
Author(s): Russell W. Long, Andrew Whitehill, Andrew Habel, Shawn P. Urbanski, Hannah Halliday, Maribel Colón, Surender Kaushik, Matthew S. Landis
Year Published:

Extreme wildfire events in recent years are shaking our established knowledge of how fire regimes respond to climate variables and how societies need to react to fire impacts. Albeit fires are stochastic and extreme in nature, the speed, intensity,…
Author(s): Andrea Duane, Marc Castellnou, Lluis Brotons
Year Published:

The 2020 fire season in the western United States (the West) has been staggering: over 2.5 million ha have burned as of 30 September, including over 1.5 million ha in California (3.7% of the state), in part from five of the six largest fires in…
Author(s): Philip E. Higuera, John T. Abatzoglou
Year Published:

Wildfires in many western North American forests are becoming more frequent, larger, and severe, with changed seasonal patterns. In response, coniferous forest ecosystems will transition toward dominance by fire-adapted hardwoods, shrubs, meadows,…
Author(s): Henriette I. Jager, Jonathan Long, Rachel L. Malison, Brendan P. Murphy, Ashley J. Rust, Luiz G. M. Silva, Rahel Sollmann, Zachary L. Steel, Mark D. Bowen, Jason B. Dunham, Joseph L. Ebersole, Rebecca L. Flitcroft
Year Published:

Western North American fires have been increasing in magnitude and severity over the last few decades. The complex coupling of fires with the atmospheric energy budget and meteorology creates short-term feedbacks on regional weather altering the…
Author(s): Diana N. Bernstein, Douglas S. Hamilton, Rosalie Krasnoff, Natalie M. Mahowald, David S. Connelly, Simone Tilmes, Peter G. M. Hess
Year Published:

This feature explores topics of enduring ecological concern – fire regimes, climate change, and forest management of the North American West. The authors describe the dual challenges of past forest management legacies and fire exclusion confronted…
Author(s): David S. Schimel, Juan C. Corley
Year Published:

The loading of dissolved organic carbon (DOC) from soils to inland waters and ultimate transport to the ocean is a critical flux pathway in the terrestrial biosphere carbon cycle. Fires can significantly affect this flux through biogeochemical…
Author(s): Xinyuan Wei, Daniel J. Hayes, Ivan Fernandez
Year Published:

Every year, high numbers of firefighters are injured at fire incidents. A primary cause of moderate to severe injury can be linked to the protective garments worn by firefighters and understanding the limits of these protective garments is crucial…
Author(s): Thomas B. B. Clarke, Mark Walker, Frank Mendham
Year Published:

Exposure to wildfire smoke continues to be a growing threat to public health, yet the chemical components in wildfire smoke that primarily drive toxicity and associated disease are largely unknown. This study utilized a suite of computational…
Author(s): Julia E. Rager, Jeliyah Clark, Lauren A. Eaves, Vennela Avula, Nicole M. Niehoff, Yong Ho Kim, Ilona Jaspers, M. Ian Gilmour
Year Published:

Air pollution, particularly fine and ultrafine particulate matter aerosols, underlies a wide range of communicable and non-communicable disease affecting many systems including the cardiopulmonary and immune systems, and arises primarily from…
Author(s): Ira Leifer, Michael T. Kleinman, Donald R. Blake, David Tratt, Charlotte Marston
Year Published:

Strong and variable winds in thunderstorm outflow boundaries interact with wildland fires, often spreading flames faster to threaten firefighter safety and amplify economical destruction. These boundaries are difficult to detect in complex terrain…
Author(s): Katja Friedrich, Julie Lundquist
Year Published:

Fire frequency and severity in southern California and across the western United States is increasing, posing a concern to the safety and well-being of communities and ecosystems. Increased aridity coupled with water stressed vegetation from…
Author(s): Alicia M. Kinoshita, Brenton A. Wilder
Year Published:

Numerous studies have linked outdoor levels of PM2.5, PM10, NO2, O3, SO2, and other air pollutants to significantly higher rates of Covid 19 morbidity and mortality, although the rate in which specific concentrations of pollutants increase Covid 19…
Author(s): Luke Curtis
Year Published:

Smoke, as a prominent character of combustion, is widely regarded as a signal of forest fire. Existing in a video-based smoke root detection methods on rely the distance between smoke and the lens, which is one of the most challenging parts. In…
Author(s): Yu Gao, Pengle Cheng
Year Published:

Recent increases in destructive wildfires are driving a need for empirical research documenting factors that contribute to structure loss. Existing studies show that fire risk is complex and varies geographically, and the role of vegetation has been…
Author(s): Alexandra D. Syphard, Heather Rustigian-Romsos, Jon E. Keeley
Year Published:

The advancement of three-dimensional, time-dependent fire behaviour models is best supported by publicly available, co-located, synchronised, quality-assured measures of pre-fire, active fire and post-fire conditions (i.e. integrated datasets).…
Author(s): Derek McNamara, William E. Mell
Year Published:

This FEIS species review synthesizes information on the relationship of Erythronium grandiflorum (yellow avalanche-lily) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Author(s): Janet L. Fryer
Year Published:

Great Basin shrublands in the United States are rapidly converting to annual grass- dominated ecosystems, driven primarily by increased wildfire activity. Post-fire vegetation recovery trajectories vary spatially and temporally and are influenced by…
Author(s): Jody Vogeler, Eric Jensen, Beth A. Newingham
Year Published:

Ventenata (Ventenata dubia L.) is an invasive annual grass that has rapidly expanded its range across temperate grassland and shrub-steppe ecosystems in western North America. However, there is little published regarding its ecology, especially its…
Author(s): Luke W. Ridder, JoAnna M. Perren, Lesley R. Morris, Bryan A. Endress, Robert V. Taylor, Bridgett J. Naylor
Year Published:

Wildfire is a growing global concern for rural and urban areas [1]. Statistics show that the intensity and negative consequences of wildfire have increased in recent decades creating serious challenges for fire and emergency services, as well as…
Author(s): Xilei Zhao, Ruggiero Lovreglio, Erica D. Kuligowski, Daniel Nilsson
Year Published: