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Ecosystem

Displaying 1881 - 1900 of 6067 results

The complexity of large-scale disasters requires governance structures that can integrate numerous responders quickly under often chaotic conditions. Complex disasters – by definition – span multiple jurisdictions and activate numerous response…
Author(s): Branda Nowell, Toddi A. Steelman
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Fire has a diverse range of impacts on Earth's physical and social systems. Accurate and up to date information on areas affected by fire is critical to better understand drivers of fire activity, as well as its relevance for biogeochemical cycles,…
Author(s): Emilio Chuvieco, Florent Mouillot, Guido R. Van der Werf, Jesus San Miguel, Mihai A. Tanase, Nikos Koutsias, Mariano Garcia, Marta Yebra, Marc Padilla, Ioannis Z. Gitas, Angelika Heil, Todd J. Hawbaker, Louis Giglio
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Post-fire flooding and elevated sediment loads in channels can pose hazards to people and structures within the wildland-urban interface. Mitigation of these hazards is essential to protect downstream resources. Straw bale check dams are one…
Author(s): Peter R. Robichaud, Keenan A. Storrar, Joseph W. Wagenbrenner
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Edges are ecologically important environmental features that have been well researched in agricultural and urban landscapes. However, little work has been conducted in flammable ecosystems where spatially and temporally dynamic fire edges are…
Author(s): Kate Parkins, Amy Scott, Julian Di Stefano, Matthew Swan, Holly Sitters, Alan York
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Quaking or trembling aspen (Populus tremuloides Michx.) is a foundational tree species, which is native, common, and broadly distributed in North America. The ecology of aspen has been extensively studied throughout its range, but both research and…
Author(s): Simon M. Landhäusser, Bradley D. Pinno, Karen Mock
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Although fire is an intrinsic factor in most terrestrial biomes, it is often perceived as a negative disturbance that must be suppressed. The application of successful fire prevention policies can lead to unsustainable fire events for ecosystems…
Author(s): Daniel Moya, Giacomo Certini, Peter Z. Fule
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The effects on dehydration and cognitive performance from heat and/or physical activity are well established in the laboratory, although have not yet been studied for personnel working in occupations such as wildland firefighting regularly exposed…
Author(s): Michael A. Cvirn, Jillian Dorrian, Bradley P. Smith, Grace E. Vincent, Sarah M. Jay, Greg D. Roach, Charli Sargent, Brianna Larsen, Brad Aisbett, Sally A. Ferguson
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Data collection in the field is fundamental in providing relevant information during fire spread across vegetation or in industrial environments. Considering the challenge and costs of obtaining measurements in the presence of a fire at such a large…
Author(s): Frederic Morandini, Tom Toulouse, Xavier Silvani, Antoine Pieri, Lucile Rossi
Year Published:

Smouldering fire vulnerability in organic-rich, wetland soils is regulated by hydrologic regimes over short (by antecedent wetness) and long (through influences on soil properties) timescales. An integrative understanding of these controls is needed…
Author(s): Morgan L. Schulte, Daniel L. McLaughlin, Frederic C. Wurster, J. Morgan Varner, Ryan D. Stewart, W. Mike Aust, C. Nathan Jones, Bridget Gile
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(1) Background: Frequent fire, climate variability, and human activities collectively influence savanna ecosystems. The relative role of these three factors likely varies on interannual, decadal, and centennial timescales. Here, we tested if Euro-…
Author(s): Berangere Leys, Daniel Griffin, Evan R. Larson
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Mountain big sagebrush is a widely distributed shrub native to the western United States. Mountain big sagebrush ecosystems support hundreds of plant and animal species, including several sagebrush obligates. The distribution of mountain big…
Author(s): Robin J. Innes
Year Published:

We reviewed forest management in the mountainous regions of several northwestern states and California in the United States and how it has impacted current issues facing these forests. We focused on the large-scale activities like fire suppression…
Author(s): Iris Allen, Sophan Chhin, Jainwei Zhang
Year Published:

Forests store a large amount of terrestrial carbon, but this storage capacity is vulnerable to wildfire. Combustion, and subsequent tree mortality and soil erosion, can lead to increased carbon release and decreased carbon uptake. Previous work has…
Author(s): Kristina J. Bartowitz, Philip E. Higuera, Bryan N. Shuman, Kendra K. McLauchlan, Tara W. Hudiburg
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Wildfires are often perceived as destructive disturbances, but we propose that when integrating evolutionary and socioecological factors, fires in most ecosystems can be understood as natural processes that provide a variety of benefits to humankind…
Author(s): Juli G. Pausas, Jon E. Keeley
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Wildfire evacuation triggers refer to prominent geographic features used in wildfire evacuation practices, and when a fire crosses a feature, an evacuation warning is issued to the communities or firefighters in the path of the fire. The existing…
Author(s): Dapeng Li, Thomas J. Cova, Philip E. Dennison
Year Published:

Conifer forests of the western US are historically well adapted to wildfires, but current warming is creating novel disturbance regimes that may fundamentally change future forest dynamics. Stand‐replacing fires can catalyze forest reorganization by…
Author(s): M. Allison Stegner, Monica G. Turner, Virginia Iglesias, Cathy L. Whitlock
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Predicting the timing of overland flow in burned watersheds can help to estimate debris‐flow timing and the location of debris‐flow initiation. Numerical models can produce flow predictions, but they are limited by our knowledge of appropriate model…
Author(s): Francis K. Rengers, Luke A. McGuire, Jason W. Kean, Dennis M. Staley, Ann M. Youberg
Year Published:

Humans live in or adjacent to wildland ecosystems that burn periodically and are part of nearly all ecosystems that are in the pyrosphere. There are many hazards posed by wildfire and certain consequences of living in these ecosystems. Most are…
Author(s): Daniel G. Neary, Jackson M. Leonard
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Wildfires represent one of the largest disturbances in watersheds of the Intermountain West. Yet, we lack models capable of predicting post‐wildfire impacts on downstream ecosystems and infrastructure. Here we present a novel modeling framework that…
Author(s): Brendan P. Murphy, Jonathan A. Czuba, Patrick Belmont
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Lidar is an established tool for mapping forest structure, but its sparse spatial and temporal coverage often preclude its use in studying forest disturbance. In contrast, aerial imagery has been and continues to be regularly collected in many…
Author(s): Steven K. Filippelli, Michael A. Lefsky, Monique E. Rocca
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