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Ecosystem

Displaying 2161 - 2180 of 6011 results

Fuel loads in real-world fire scenarios often feature discrete elements, discontinuities, or inhomogeneities; however, most models for flame spread only assume a continuous, homogeneous fuel. Because discrete fuels represent a realistic scenario not…
Author(s): Jiang Lin, Zhao Zhao, Wei Tang, Colin H. Miller, Jin-Hua Sun, Michael J. Gollner
Year Published:

Wildfire can exert considerable influence on many watershed processes, including the partitioning of precipitation by forest canopies. Despite general acknowledgement that canopy interception is reduced following wildfire, effects on net rainfall…
Author(s): Chris H. S. Williams, Uldis Silins, Sheena A. Spencer, Michael J. Wagner, Micheal Stone, Monica B. Emelko
Year Published:

Many ecosystems and landscapes are experiencing rapid and potentially persistent changes as the result of complex and potentially novel interactions of anthropogenic climate changes; shifting fire regimes; exotic plant, insect, and pathogen…
Author(s): Robert E. Keane, Rachel A. Loehman
Year Published:

Plant invasions can affect fuel characteristics, fire behavior, and fire regimes resulting in invasive plant-fire cycles and alternative, self-perpetuating states that can be difficult, if not impossible, to reverse. Concepts related to general…
Author(s): Jeanne C. Chambers, Matthew L. Brooks, Matthew J. Germino, Jeremy D. Maestas, David Board, Matthew O. Jones, Brady W. Allred
Year Published:

As wildfire activity increases in many regions of the world, it is imperative that we understand how key components of fire‐prone ecosystems respond to spatial variation in fire characteristics. Pollinators provide a foundation for ecological…
Author(s): Sara M. Galbraith, James H. Cane, Andrew R. Moldenke, James W. Rivers
Year Published:

The United States' National Cohesive Wildfire Management Strategy aims to achieve greater social and ecological resilience to wildfire. It also raises the question: cohesive for whom and for what purpose? In this article, we address the wildfire…
Author(s): Toddi A. Steelman, Branda Nowell
Year Published:

Background: Projections for the future health and abundance of whitebark pine (Pinus albicaulis Engelm.) populations in western North America are dire. Not only has the species been declining due to the combined effects of fire exclusion policies,…
Author(s): Sarah Flanary, Robert E. Keane
Year Published:

High severity fires are likely to become more prevalent with global climate change, so it is critical that we understand their effects on forest ecosystems. Leaf litter dependent fauna are likely to be particularly vulnerable to habitat loss…
Author(s): Sebastian Buckingham, Nick P. Murphy, Heloise Gibb
Year Published:

Federal land managers in the US can be informed with quantitative assessments of the social conditions of the populations affected by wildfires originating on their administered lands in order to incorporate and adapt their management strategy to…
Author(s): Palaiologos Palaiologou, Alan A. Ager, Max W. Nielsen-Pincus, Cody Evers, Michelle A. Day
Year Published:

Fire is a ubiquitous natural disturbance that affects 3–4% of the Earth's surface each year. It is a tool used by humans for land clearing and burning of agricultural wastes. The United Nations Sustainable Development Goals (SDGs) do not explicitly…
Author(s): Deborah A. Martin
Year Published:

Wildland fire is a major producer of aerosols from combustion of vegetation and soils, but little is known about the abundance and composition of smoke’s biological content. Bioaerosols, or aerosols derived from biological sources, may be a…
Author(s): Leda N. Kobziar, Melissa R.A. Pingree, Adam C. Watts, Kellen N. Nelson, Tyler J. Dreaden, Mary Ridout
Year Published:

The limited availability of resources for wildfire management necessitates prioritizing forest areas for protection. For this purpose, criteria such as fire risk are used to generate thematic maps intended to support decision-making. However, prior…
Author(s): José G. Flores Garnica, Alejandra Macías, Uri D. Casillas
Year Published:

Fire severity mapping is conventionally accomplished through the interpretation of aerial photography or the analysis of moderate- to coarse-spatial-resolution pre- and post-fire satellite imagery. Although these methods are well established, there…
Author(s): Jeremy Arkin, Nicholas C. Coops, Txomin Hermosilla, Lori D. Daniels, Andrew Plowright
Year Published:

Prescribed burning is a widely used tool in forest and grassland management. However, because fire that escapes from a prescribed burn accidentally may cause property damage, injuries, and even human casualties, purchasing insurance to cover such…
Author(s): Rajan Parajuli, Omkar Joshi, Neelam C. Poudyal, Urs P. Kreuter
Year Published:

Wildfires have demonstrated their destructive powers in several parts of the world in recent years. In an effort to mitigate the hazard of large catastrophic wildfires, a common practice is to reduce fuel loads in the landscape. This can be achieved…
Author(s): Javier Leon, Victor M. J. J. Reijnders, John W. Hearne, Melih Ozlen, Karin J. Reinke
Year Published:

Mastication is becoming a popular wildland fuel treatment in the United States but little is known about how masticated fuels dry over time, especially as these atypical fuelbeds age. This report summarises measured drying rates of different-aged…
Author(s): Robert E. Keane, Lisa M. Holsinger, Helen Y. Smith, Pamela G. Sikkink
Year Published:

Vegetation fires are an important process in the Earth system. Fire intensity locally impacts fuel consumption, damage to the vegetation, chemical composition of fire emissions and also how fires spread across landscapes. It has been observed that…
Author(s): Pierre Laurent, Florent Mouillot, María Vanesa Moreno, Chao Yue, Philippe Ciais
Year Published:

Wildfire is a dominant disturbance in many ecosystems, and fire frequency and intensity are being altered as climates change. Through effects on mortality and regeneration, fire affects plant community composition, species richness, and carbon…
Author(s): Adam D. Miller, Jonathan R. Thompson, Alan J. Tepley, Kristina J. Anderson‐Teixeira
Year Published:

Live fuel moisture content (LFMC) is an important metric for fire danger ratings. However, there is limited understanding of the physiological control of LFMC or how it varies among co-occurring species. This is a problem for biodiverse yet fire-…
Author(s): Alexandria L. Pivovaroff, Nathan Emery, M. Rasoul Sharifi, Marti Witter, Jon E. Keeley, Philip W. Rundel
Year Published:

Background: Asthma-related outcomes are regularly used by studies to investigate the association between human exposure to landscape fire smoke and health. Robust summary effect estimates are required to inform health protection policy for fire…
Author(s): Nicolas Borchers-Arriagada, Joshua A. Horsley, Andrew J. Palmer, Geoffrey G. Morgan, Rachel Tham, Fay H. Johnston
Year Published: