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Ecosystem

Displaying 941 - 960 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:

Increases in burned area and large fire occurrence are widely documented over the western United States over the past half century. Here, we focus on the elevational distribution of forest fires in mountainous ecoregions of the western United States…
Author(s): Mohammad Reza Alizadeha, John T. Abatzoglou, Charles H. Luce, Jan F. Adamowski, Arvin Farid, Mojtaba Sadegh
Year Published:

Subalpine coniferous forests are adapted to cycles of fire and successional development, but increasing fire frequency and severity are altering historical stand structure, composition, and plant diversity. For instance, conifer regeneration has…
Author(s): Andrew J. Andrade, Diana F. Tomback, Timothy R. Seastedt, Sabine Mellmann-Brown
Year Published:

Planet Earth is entering the age of megafire, pushing ecosystems to their limits and beyond. While fire causes mortality of animals across vast portions of the globe, scientists are only beginning to consider fire as an evolutionary force in animal…
Author(s): Dale G. Nimmo, Alexandra J. R. Carthey, Chris J. Jolly, Daniel T. Blumstein
Year Published:

Exotic annual grass invasion and dominance of rangelands is a concern across western North America and other semiarid and arid ecosystems around the world. Postfire invasion and dominance by exotic annual grasses in sagebrush communities is…
Author(s): Kirk W. Davies, Jonathan D. Bates, Barry Perryman, Sergio Arispe
Year Published:

Pyrogenic carbon (PyC) is a ubiquitous legacy of wildfire in terrestrial soils, yet how it affects the growth and function of regenerating plants has received little research attention. We examined responses to a natural gradient of PyC deposition 5…
Author(s): Nigel V. Gale, Sean C. Thomas
Year Published:

Implementation of wildfire- and climate-adaptation strategies in seasonally dry forests of western North America is impeded by numerous constraints and uncertainties. After more than a century of resource and land use change, some question the need…
Author(s): R. Keala Hagmann, Paul F. Hessburg, Susan J. Prichard, Nicholas A. Povak, Peter M. Brown, Peter Z. Fule, Robert E. Keane, Eric E. Knapp, Jamie M. Lydersen, Kerry L. Metlen, Matthew J. Reilly, Andrew Sanchez Meador, Scott L. Stephens, Jens T. Stevens, Alan H. Taylor, Larissa L. Yocom, Michael A. Battaglia, Derek J. Churchill, Lori D. Daniels, Donald A. Falk, Paul Henson, James D. Johnston, Meg A. Krawchuk, Carrie R. Levine, Garrett W. Meigs, Andrew G. Merschel, Malcolm P. North, Hugh Safford, Thomas W. Swetnam, Amy E. M. Waltz
Year Published: