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Ecosystem

Displaying 961 - 980 of 5953 results

Aim: Fine‐scale topography and canopy cover can play an important role in mediating effects of regional‐scale climate change on the below‐canopy environment in mountain forests. The aim of this study was to determine how below‐canopy temperatures in…
Author(s): Amanda R. Carlson, Jason S. Sibold, Jose F. Negron
Year Published:

Water supply impairment from increased contaminant mobilization and transport after wildfire is a major concern for communities that rely on surface water from fire-prone watersheds. In this article we present a Monte Carlo simulation method to…
Author(s): Benjamin Gannon, Yu Wei, Matthew P. Thompson, Joe H. Scott, Karen C. Short
Year Published:

Wildfires significantly influence ecosystem patterns and processes on a global scale. In many cases, they pose a threat to human lives and property. Through greenhouse gas emissions, wildfires also directly contribute to climate change. The…
Author(s): Michael Nolde, Simon Plank, Rudolf Richter, Doris Klein, Torsten Riedlinger
Year Published:

The objective of this work is to model and simulate aerial drops of fire retardants in dangerous fire environments. Specifically, the work develops a computational framework for a model problem combining: [1.] A meshless discrete element component…
Author(s): T. I. Zohdi
Year Published:

One of the main sources of greenhouse gases is forest fire, with carbon dioxide as its main constituent. With increasing global surface temperatures, the probability of forest fire events also increases. A method that enables rapid quantification of…
Author(s): Putri Setiani, Luhur Akbar Devianto, Fatwa Ramdani
Year Published:

Wildfire size and frequency have increased in the western United States since the 1950s, but it is unclear how seeding treatments have altered fire regimes in arid steppe systems. We analyzed how the number of fires since 1955 and the fire return…
Author(s): Chris Bowman-Prideaux, Beth A. Newingham, Eva K. Strand
Year Published:

Wildfires present an increasing threat to communities through impacts that include destruction of homes or outbuildings, evacuations, damage to public infrastructure, and economic disruption. Effective fire management entails identifying and…
Author(s): Alex W. Kirkpatrick
Year Published:

Delaying protective action decision making in wildfire is inconsistent with fire authorities’ advice and is associated with fatalities. A comprehensive understanding of why at-risk residents wait and see whether they will evacuate from a wildfire or…
Author(s): Ken Strahan, John Gilbert
Year Published:

Expert opinion can be a valuable tool for informed decision making. Concerning wildfire susceptibility reduction at the landscape scale, forest ecosystem experts play a key role in offering advice about appropriate fuel management practices to be…
Author(s): Ana Martins, Ana Novais, José L. Santos, Maria João Canadas
Year Published:

Fire plays a role in the vast majority of terrestrial ecosystems. Researchers have discovered that the negative effects of prescribed fire on soil, water and vegetation are transitory, and that benefits are much greater. This paper presents a…
Author(s): Marcos Francos, Xavier Ubeda
Year Published:

Understanding how abiotic disturbance and biotic interactions determine pollinator and flowering‐plant diversity is critically important given global climate change and widespread pollinator declines. To predict responses of pollinators and…
Author(s): Joseph A. LaManna, Laura A. Burkle, R. Travis Belote, Jonathan A. Myers
Year Published:

Managed wildfires, naturally ignited wildfires that are managed for resource benefit, have the potential to reduce fuel loads and minimize the effects of future wildfires, but have been utilized mainly in remote settings. A new policy federal…
Author(s): Jose M. Iniguez, Andrea E. Thode, Sarah M. McCaffrey, Alexander M. Evans, Marc D. Meyer, Shaula J. Hedwall
Year Published:

Abrupt changes in wind direction and speed can dramatically impact wildfire development and spread, endangering firefighters. A frequent cause of such wind shifts is outflow from thunderstorms and organised convective systems; thus, their…
Author(s): Jim Bresch, Jordan G. Powers, Craig S. Schwartz, Ryan A. Sobash, Janice L. Coen
Year Published:

In this study, we investigate a novel application of the photogrammetric monoplotting technique for assessing wildfires. We demonstrate the use of the software program WSL Monoplotting Tool (MPT) to georeference operational oblique aerial wildfire…
Author(s): Henry Hart, Daniel D. B. Perrakis, Stephen W. Taylor, Christopher Bone, Claudio Bozzini
Year Published:

Atmospheric forcing and interactions between the fire and atmosphere are primary drivers of wildland fire behavior. The atmosphere is known to be a chaotic system that, although deterministic, is very sensitive to small perturbations to initial…
Author(s): Alexandra K. Jonko, Kara M. Yedinak, Juliana L. Conley, Rodman Linn
Year Published:

Exceptional events occur when air pollution in a specific location exceeds the National Ambient Air Quality Standards (NAAQS) due to an event that cannot be reasonably attributed to human activities, such as a wildland fire. Ground-level ozone (O3)…
Author(s): Liji M. David, A. R. Ravishankara, Steven J. Brey, Emily V. Fischer, John Volckens, Sonia M. Kreidenweis
Year Published:

Fire is a dominant driver of ecosystem patterns and processes across the Rocky Mountains. This chapter describes fire ecology and fire-related management for the major forest types in the Rocky Mountains. Major forest types included are ponderosa…
Author(s): Sharon M. Hood, Brian J. Harvey, Paula J. Fornwalt, Cameron Naficy, Winslow D. Hansen, Kimberley T. Davis, Michael A. Battaglia, Camille Stevens-Rumann, Victoria A. Saab
Year Published:

As the need for wildfire adaptation for human populations in the wildland-urban interface (WUI) intensifies in the face of changes that have increased the number of wildfires that exceed 100 thousand acres, it is becoming more important to come to a…
Author(s): Mark Billings, Matthew S. Carroll, Travis B. Paveglio, Kara Whitman
Year Published:

Quaking aspen (Populus tremuloides) is an important component of western U.S. forests, however knowledge concerning processes of aspen seedling establishment, survival, and growth is limited and frequently anecdotal. Following a widespread post-fire…
Author(s): Mark R. Kreider, Larissa L. Yocom
Year Published:

Catastrophic and unprecedented wildfires have unfolded across fire-prone landscapes globally over the last three years, with highly publicized loss of human life, property destruction and ecological transformation. Indigenous peoples within many…
Author(s): Will Smith, Timothy Neale, Jessica K. Weir
Year Published: