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Ecosystem

Displaying 1321 - 1340 of 6016 results

Prescribed fire is an important tool for maintaining the resilience of fire-dependent ecosystems. Despite broad recognition of its value, however, prescribed fire application in the western US has not been applied at the necessary levels. Past…
Author(s): Northwest Fire Science Consortium
Year Published:

We integrated a widely used forest growth and management model, the Forest Vegetation Simulator, with the FSim large wildfire simulator to study how management policies affected future wildfire over 50 years on a 1.3 million ha study area comprised…
Author(s): Alan A. Ager, Ana M. G. Barros, Rachel M. Houtman, Robert C. Seli, Michelle A. Day
Year Published:

Background: Prairie-forest ecotones are ecologically important for biodiversity and ecological processes. While these ecotones cover small areas, their sharp gradients in land cover promote rich ecological interaction and high conservation value.…
Author(s): Penelope Morgan, Emily K. Heyerdahl, Eva K. Strand, Stephen C. Bunting, James P. Riser, John T. Abatzoglou, Max W. Nielsen-Pincus, Mara Johnson
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Fires shape the biogeochemistry and functioning of many ecosystems, and fire frequencies are changing across much of the globe. Frequent fires can change soil carbon (C) and nitrogen (N) storage by altering the quantity and chemistry of plant inputs…
Author(s): Adam F. A. Pellegrini, Sarah E. Hobbie, Peter B. Reich, Ari A. Jumpponen, E.N. Jack Brookshire, Anthony C. Caprio, Corli Coetsee, Robert B. Jackson
Year Published:

With recent and predicted increases in the frequency and intensity of wildfires, there is a pressing need for mitigation strategies to reduce the impacts of wildfires on human lives, infrastructure and biodiversity. One strategy involves the use of…
Author(s): Brad R. Murray, Colin Brown, Megan L. Murray, Daniel W. Krix, Leigh J. Martin, Thomas Hawthorne, Molly I. Wallace, Summer A. Potvin, Jonathan K. Webb
Year Published:

Climate change is causing increased wildfire activity across the western US and creating post-fire conditions that are warmer and drier than they were in the past. Scientists and managers are concerned with the potential for post-fire tree…
Author(s): Kimberley T. Davis, Lacey Hankin
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Pioneering networks of cameras that can search for wildland fire signatures have been in development for some years (High Performance Wireless Research & Education Network-HPWREN cameras and the ALERT Wildfire camera). While these cameras have…
Author(s): Kinshuk Govil, Morgan L. Welch, Timothy Ball, Carlton R. Pennypacker
Year Published:

Wildfires are exorbitantly cataclysmic disasters that lead to the destruction of forest cover, wildlife, land resources, human assets, reduced soil fertility and global warming. Every year wildfires wreck havoc across the globe. Therefore, there is…
Author(s): Harkiran Kaur, Sandeep K. Sood
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Background: Ecological disturbance is a major driver of ecosystem structure and evolutionary selection, and theory predicts that the frequency and/or intensity of disturbance should determine its effects on communities. However, adaptations of…
Author(s): Jesse E. D. Miller, Hugh Safford
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Background: Litter is the predominant fuel that drives surface fire behavior in most fire-prone forest and woodland ecosystems. The flammability of litter is driven by fuel characteristics, environmental factors, and the interactive effects of the…
Author(s): Jesse K. Kreye, Jeffrey M. Kane, J. Morgan Varner, J. Kevin Hiers
Year Published:

Litterfall production and composition, fall pattern and nutrient content were studied in a mixed stand of Pinus nigra and Pinus pinaster (El Pozuelo), as well as in a pure stand of Pinus nigra (Beteta) in the Cuenca Mountains in order to determine…
Author(s): Juncal Espinosa, Javier Madrigal, Valentín Pando, Ana C. De La Cruz, Mercedes Guijarro, Carmen Hernando
Year Published:

Wildland fire occurrence is highly variable in time and space, and in the United States where total area burned can vary substantially, acquiring resources (firefighters, engines, aircraft, etc.) to respond to fire demand is an important…
Author(s): Erin J. Belval, Crystal S. Stonesifer, David E. Calkin
Year Published:

Climate change is transforming forest structure and function by altering the timing, frequency, intensity, and spatial extent of episodic disturbances. Wildland fire regimes in western U.S. coniferous forests are now characterized by longer fire…
Author(s): Elizabeth R. Pansing, Diana F. Tomback, Michael B. Wunder
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The regular and consistent measurements provided by Earth observation satellites can support the monitoring and reporting of forest indicators. Although substantial scientific literature espouses the capabilities of satellites in this area, the…
Author(s): Samuel Hislop, Andrew Haywood, Simon D. Jones, Mariela Soto-Berelov, Andrew K. Skidmore, Trung H. Nguyen
Year Published:

Fires transform soil microbial communities directly via heat-induced mortality and indirectly by altering plant and soil characteristics. Emerging evidence suggests the magnitude of changes to some plant and soil properties increases with burn…
Author(s): Jaron Adkins, Kathryn M. Docherty, Jessica L.M. Gutknecht, Jessica R. Miesel
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SUMMARY: For more than a century in the US we have been suppressing fires, with unexpected and undesirable outcomes particularly in fire adapted and dependent ecosystems. Fires are increasing in size and duration, resulting in substantial loss of…
Author(s): Richard D. Stratton
Year Published:

Wildfire events have been impacting many parts of the United States. Of particular importance are the Wildland-Urban Interface (WUI) areas, where residential development exposes residents to increased risk from the threat of wildfire. However,…
Author(s): Benjamin Ghasemi, Gerard T. Kyle, James D. Absher
Year Published:

Scholars, politicians, practitioners, and civil society increasingly call for sustainability transformations to cope with urgent social and environmental challenges. In sustainability transformations research, understandings of transformations are…
Author(s): David P. M. Lam, Elvira Hinz, Daniel J. Lang, Maria Tengö, Henrik von Wehrden, Berta Martín-López
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Fire offers a special perspective by which to understand the Earth being remade by humans. Fire is integrative, so intrinsically interdisciplinary. Fire use is unique to humans, so a tracer of humanity's ecological impacts. Anthropogenic fire…
Author(s): Stephen Pyne
Year Published:

We assessed plant community succession following prescribed fire on ungrazed Wyoming big sagebrush steppe, eastern Oregon. Treatments were burned (Burn; September and October, 2002) and unburned (Control) sagebrush steppe. Herbaceous yield,…
Author(s): Jonathan D. Bates, Chad S. Boyd, Kirk W. Davies
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