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Ecosystem

Displaying 2861 - 2880 of 5990 results

Since 2009, the US Department of Agriculture Forest Service has promoted an “all lands approach” to forest restoration, particularly relevant in the context of managing wildfire. To characterize its implementation, we undertook an inventory of what…
Author(s): Susan Charnley, Erin C. Kelly, Kendra L. Wendel
Year Published:

Mastication is becoming a common fuel treatment method in forests and shrublands of the United States, especially where prescribed fire or mechanical fuel removal is difficult. Such sites are often located in the wildland urban interface (WUI) where…
Author(s): Pamela G. Sikkink
Year Published:

1) The loss of foundational but fire-intolerant perennials such as sagebrush due to increases in fire size and frequency in semi-arid regions has motivated efforts to restore them, often with mixed or even no success. Seeds of sagebrush Artemisia…
Author(s): Martha M. Brabec, Matthew J. Germino, Bryce A. Richardson
Year Published:

The objective of FASMEE is to obtain measurements that can be used to evaluate and advance operational smoke models. Among the focus areas listed in the FON task statements are the modeling of fire growth, fire behavior, and plume development. In…
Author(s): William E. Mell, Rodman Linn
Year Published:

Given the expanding vulnerability of human populations and natural systems, management professionals are ever more frequently called upon to apply natural hazard modeling in decision support. When scientists enter into predictive services, they…
Author(s): Karen L. Riley, Matthew P. Thompson, Peter Webley, Kevin D. Hyde
Year Published:

On June 1, 2015, the Forest Service, an agency of the U.S. Department of Agriculture (USDA), celebrated the 100th anniversary of the Branch of Research. Established in 1915 to centralize and elevate the pursuit of research throughout the agency, the…
Author(s): Diane M. Smith
Year Published:

Increasing evidence that pervasive warming trends are altering disturbance regimes and their interactions with fire has generated substantial interest and debate over the implications of these changes. Previous work has primarily focused on…
Author(s): Jeffrey M. Kane, J. Morgan Varner, Margaret R. Metz, Phillip J. van Mantgem
Year Published:

Quaking aspen (Populus tremuloides Michx.) is being stressed across the America West from a variety of sources including drought, herbivory, fire suppression, development, and past management practices. Rich assemblages of plants and animals…
Author(s): Paul C. Rogers, Jody A. Gale
Year Published:

Research has been undertaken on the hydrological and erosional impact of forest fires, but remarkably little work has been conducted on salvage logging operations that often follow them. We assessed the effects of mechanical salvage logging…
Author(s): Maruxa C. Malvar, Flávio C. Silva, Sergio A. Prats, Diana C.S. Vieira, Celeste O.A. Coelho, J. Jacob Keizer
Year Published:

Sharing fire engines and crews between fire suppression dispatch zones may help improve the utilisation of fire suppression resources. Using the Resource Ordering and Status System, the Predictive Services’ Fire Potential Outlooks and the Rocky…
Author(s): Yu Wei, Erin J. Belval, Matthew P. Thompson, David E. Calkin, Crystal S. Stonesifer
Year Published:

Trembling aspen covers a large geographic range in North America, and previous studies reported that a better understanding of its singular influence on soil properties and processes is of high relevance for global change questions. Here we…
Author(s): Jérôme Laganière, Antra Boča, Helga Van Miegroet, David Paré
Year Published:

This report examines the Strawberry Fire fatality of Justin Beebe and events surrounding the movement of EMTs to his position.
Author(s): Randy Draeger
Year Published:

Accurate prediction of fire-caused tree mortality is critical for making sound land management decisions such as developing burning prescriptions and post-fire management guidelines. To improve efforts to predict post-fire tree mortality, we…
Author(s): Sharon M. Hood, Duncan C. Lutes
Year Published:

It is generally assumed that severe disturbances predispose damaged forests to high fire hazard by creating heavy fuel loading conditions. Of special concern is the perception that surface fuel loadings become high as recently killed trees deposit…
Author(s): Christine Stalling, Robert E. Keane, Molly L. Retzlaff
Year Published:

Growing human and ecological costs due to increasing wildfire are an urgent concern in policy and management, particularly given projections of worsening fire conditions under climate change. Thus, understanding the relationship between climatic…
Author(s): Alexandra D. Syphard, Jon E. Keeley, Anne H. Pfaff, Ken Ferschweiler
Year Published:

High temperatures and severe drought contributed to extensive tree mortality from fires and bark beetles during the 2000s in parts of the western continental United States. Several states in this region have greenhouse gas (GHG) emission targets and…
Author(s): Logan T. Berner, Beverly E. Law, Arjan J. H. Meddens, Jeffrey A. Hicke
Year Published:

Seed production is an essential component of post disturbance recovery for mountain big sagebrush (Artemisia tridentata Nutt. ssp vaseyana [Rydb] Beetle; MBS). We tested a method for rapid estimation of MBS seed production using measurements of…
Author(s): Melissa L. Landeen, Loreen Allphen, Stanley G. Kitchen, Stephen L. Petersen
Year Published:

The ability to rapidly estimate wind speed beneath a forest canopy or near the ground surface in any vegetation is critical to practical wildland fire behavior models. The common metric of this wind speed is the “mid-flame” wind speed, UMF. However…
Author(s): William J. Massman, Jason M. Forthofer, Mark A. Finney
Year Published:

Nearly half of the area occupied by sagebrush (Artemisia spp.) ecosystems before European-American settlement has been lost due to conversion to other land cover types, and agriculture, urbanization, and industrial development. Thus, conservation…
Author(s): Robin J. Innes
Year Published:

Logging to ‘salvage’ economic returns from forests impacted by natural disturbances has become increasingly prevalent globally. Despite potential negative effects on biodiversity, salvage logging is often conducted, even in areas otherwise…
Author(s): Simon Thorn, Claus Bassler, Roland Brandl, Philip J. Burton, John L. Campbell, Rebecca Cahall, Jorge Castro, Chang-Yong Choi, Tyler Cobb, Daniel C. Donato, Ewa Durska, Joseph B. Fontaine, Sylvie Gauthier, Christian Hebert, Torsten Hothorn, Richard L. Hutto, Eun-Jae Lee, Alexandro B. Leverkus, David B. Lindenmayer, Martin K. Obrist, Josep Rost, Sebastian Seibold, Rupert Seidl, Dominik Thom, Kaysandra Waldron, Beat Wermelinger, Maria-Barbara Winter, Michal Zmihorski, Jorg Muller
Year Published: