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Ecosystem

Displaying 901 - 920 of 5896 results

Beaver dams are gaining popularity as a low‐tech, low‐cost strategy to build climate resiliency at the landscape scale. They slow and store water that can be accessed by riparian vegetation during dry periods, effectively protecting riparian…
Author(s): Emily Fairfax, Andrew Whittle
Year Published:

No single factor produces wildfires; rather, they occur when fire thresholds (ignitions, fuels, and drought) are crossed. Anomalous weather events may lower these thresholds and thereby enhance the likelihood and spread of wildfires. Climate change…
Author(s): Juli G. Pausas, Jon E. Keeley
Year Published:

Active wildfire seasons in the western U.S. warrant the evaluation of post‐fire forest management strategies. Ground‐based salvage logging is often used to recover economic loss of burned timber. In unburned forests, ground‐based logging often…
Author(s): Peter R. Robichaud, Edwin D. Bone, Sarah A. Lewis, Erin S. Brooks, Robert E. Brown
Year Published:

Active wildfire seasons in the western U.S. warrant the evaluation of post‐fire forest management strategies. Ground‐based salvage logging is often used to recover economic loss of burned timber. In unburned forests, ground‐based logging often…
Author(s): Peter R. Robichaud, Edwin D. Bone, Sarah A. Lewis, Erin S. Brooks, Robert E. Brown
Year Published:

Increased fire frequency in semi-arid ecosystems can alter biochemical soil properties and soil processes that underpin ecosystem structure and functioning, thus threatening native plant communities and the species that rely on them. However, there…
Author(s): Leslie Nichols, Douglas J. Shinneman, Susan K. McIlroy, Marie-Anne de Graaff
Year Published:

Active wildfire seasons in the western U.S. warrant the evaluation of post‐fire forest management strategies. Ground‐based salvage logging is often used to recover economic loss of burned timber. In unburned forests, ground‐based logging often…
Author(s): Peter R. Robichaud, Edwin D. Bone, Sarah A. Lewis, Erin S. Brooks, Robert E. Brown
Year Published:

The western United States has suffered increasingly disastrous wildfires in recent years. Massive wildfires have attracted considerable attention from the media and policy makers, and have renewed calls to better understand and mitigate wildfire…
Author(s): Alex W. Kirkpatrick
Year Published:

Background:The need for basic information on spatial distribution and abundance of plant species for research and management in semiarid ecosystems is frequently unmet. This need is particularly acute in the large areas impacted by megafires in…
Author(s): Cara Applestein, Matthew J. Germino
Year Published:

Over the past few years, numerous large-scale disasters have occurred due to wildfires at the wildland-urban interface (WUI). In these fires, spread via the transport of firebrands (burning embers) plays a significant role. Several models have been…
Author(s): Mohammadhadi Hajilou, Steven Hu, Thomas Roche, Priya Garg, Michael J. Gollner
Year Published:

Wildfire is a landscape‐scale disturbance that changes the rate and magnitude of many earth surface processes. The impacts of fire on earth surface processes can vary substantially from place to place depending on a variety of site‐specific…
Author(s): Francis K. Rengers, Luke A. McGuire
Year Published:

Effective strategies to reduce indoor air pollutant concentrations during wildfire smoke events are critically needed. Worldwide, communities in areas prone to wildfires may suffer from annual smoke exposure events lasting from days to weeks. In…
Author(s): Gilliane Davison, Karoline K. Barkjohn, Gayle Hagler, Amara L. Holder, Sarah Coefield, Curtis W. Noonan, Beth Hassett-Sipple
Year Published:

As land managers strive to implement the National Cohesive Wildland Fire Management Strategy, guidance is critically needed on where and how landscape fuel reduction treatments can mitigate future fire impacts and assist in active fire management.…
Author(s): Susan J. Prichard, Robert W. Gray, Vivian Griffey, Paul F. Hessburg, Becky K. Kerns, Rebecca Lemons, Roger D. Ottmar, Nicholas A. Povak, R. Brion Salter
Year Published:

Changing climate and disturbance regimes are increasingly challenging the resilience of forest ecosystems around the globe. A powerful indicator for the loss of resilience is regeneration failure, that is, the inability of the prevailing tree…
Author(s): Werner Rammer, Kristin H. Braziunas, Winslow D. Hansen, Zakary Ratajczak, Anthony L. Westerling, Monica G. Turner, Rupert Seidl
Year Published:

How fuel influences fire spread at different spatial scales has been broadly studied but it is still under research. Although prior research has generally explored fuel effects at the stand scale, there is increasing recognition that forest…
Author(s): Andrea Duane, Marcelo D. Miranda, Lluis Brotons
Year Published:

Over the past century the size and severity of wildfires, as well as post-fire recovery processes (e.g., seedling establishment), have been altered from historical levels due to management policies and changing climate. Tree seedling establishment…
Author(s): Darcy H. Hammond, Eva K. Strand, Penelope Morgan, Andrew T. Hudak, Beth A. Newingham
Year Published:

Wildland fires have been a rising problem on the worldwide level, generating ecological and economic losses. Specifically, between wildland fire types, uncontrolled fires are critical due to the potential damage to the ecosystem and their effects on…
Author(s): Felipe Vasquez, Ania Cravero, Manuel Castro, Patricio Acevedo
Year Published:

Summary: Historical fire regimes in plains grassland and prairie ecosystems of central North America are characterized by frequent fires with return intervals ranging from 1 to 35 years. Frequent fires removed accumulated litter, stimulated native…
Author(s): Kristin L. Zouhar
Year Published:

Suppression of most wildland fire ignitions has defined fire management in the United States since 1935. These past suppression activities, along with climate change impacts and other factors, have resulted in longer fire seasons and increased…
Author(s): Julia Berkey, Carol Miller, Andrew J. Larson
Year Published:

While managed fire often produces clear changes in aboveground functional diversity, we know little about how fire affects belowground fauna and their mediation of biogeochemical processes. Because soil micro- and mesofauna, particularly nematodes,…
Author(s): Anita Antoninka, Kara Gibson
Year Published:

Wildfires pose significant risks to populations living in the Wildland-Urban Interface (WUI). We examine the influence of WUI residents’ risk perceptions as well as other cognitive constructs (guided by Protection Motivation Theory) likely to…
Author(s): Lauren Nicole Dupey Larsen, Peter D. Howe, Mark W. Brunson, Larissa L. Yocom, Darren McAvoy, E. Helen Berry, Jordan W. Smith
Year Published: