Skip to main content

Search by keywords, or use filters to narrow down results by type, topic, or ecosystem.

Document Type

Topic

Ecosystem

Displaying 2761 - 2780 of 6016 results

An understanding of the long-term vegetation structure, patterns of fuel succession, and potential for reburn in sagebrush-dominated ecosystems is important for managing the landscape at a temporal scale that is appropriate for the ecological…
Author(s): Lisa M. Ellsworth, J. Boone Kauffman
Year Published:

In recent years, warming climate and increased fire activity have raised concern about post-fire recovery of western U.S. forests. We assessed relationships between climate variability and tree establishment after fire in dry ponderosa pine forests…
Author(s): Monica T. Rother, Thomas T. Veblen
Year Published:

Aridland riparian ecosystems are limited, the climate is changing, and further hydrological change is likely in the American Southwest. To protect riparian ecosystems and organisms, we need to understand how they are affected by disturbance…
Author(s): D. Max Smith, Deborah M. Finch
Year Published:

The recent mountain pine beetle (Dendroctonus ponderosae Hopkins) epidemic has affected millions of hectares of conifer forests in the Rocky Mountains. Land managers are interested in using biomass from beetle-killed trees for bioenergy and biobased…
Author(s): Woodam Chung, Paul Evangelista, Nathaniel Anderson, Anthony Vorster, Hee Han, Krishna Poudel, Robert Sturtevant
Year Published:

Across the globe, rising temperatures and altered precipitation patterns have caused persistent regional droughts, lengthened fire seasons, and increased the number of weather-driven extreme fire events. Because wildfires currently impact an…
Author(s): Susan J. Prichard, Camille Stevens-Rumann, Paul F. Hessburg
Year Published:

Climate change is projected to exacerbate the intensity of heat waves and drought, leading to a greater incidence of large and high-intensity wildfires in forested ecosystems. Predicting responses of seedlings to such fires requires a process-based…
Author(s): Alistair M. S. Smith, Alan F. Talhelm, Daniel M. Johnson, Aaron M. Sparks, Crystal A. Kolden, Kara M. Yedinak, Kent G. Apostol, Wade T. Tinkham, John T. Abatzoglou, James A. Lutz, Anthony S. Davis, Kurt S. Pregitzer, Henry D. Adams, Robert L. Kremens
Year Published:

Land managers typically make post hoc assessments of the effectiveness of fuel reduction burning (FRB), but often lack a rigorous sampling framework. A general, but untested, assumption is that variability in soil and fuel properties increases from…
Author(s): Mana Gharun, Malcolm Possell, Meaghan E. Jenkins, Lai Fan Poon, Tina L. Bell, Mark A. Adams
Year Published:

Characterising the impacts of wildland fire and fire suppression is critical information for fire management decision-making. Here, we focus on decisions related to the rare larger and longer-duration fire events, where the scope and scale of…
Author(s): Matthew P. Thompson, Francisco Rodriguez y Silva, David E. Calkin, Michael S. Hand
Year Published:

Context The proportion of fire area that experienced stand-replacing fire effects is an important attribute of individual fires and fire regimes in forests, and this metric has been used to group forest types into characteristic fire regimes.…
Author(s): Brandon M. Collins, Jens T. Stevens, Jay D. Miller, Scott L. Stephens, Peter M. Brown, Malcolm P. North
Year Published:

This study examined the recovery of both physical and biotic characteristics of small (<0.1 m3 sec-1) headwater stream systems impacted by the Dude Fire, which occurred in central Arizona, USA, in 1990. Data collected prior to the fire from 1986…
Author(s): Jackson M. Leonard, Hugo A. Magana, Randy K. Bangert, Daniel G. Neary, Willson L. Montgomery
Year Published:

Although communication is often cited as a contributor to organisational accidents, complexities of the communication context are still understudied. In training materials and some investigative reports, communication is often presented as an…
Author(s): Rebekah L. Fox, Elena Gabor, David Thomas, Jennifer Ziegler, Anne E. Black
Year Published:

Wildfire episodes are becoming more rampant with global warming and climate change. Every year it causes lot of damage in terms of burnt acres and also impacts the air quality and climate through emission of various trace greenhouse gases. As…
Author(s): Bokhwa Kim, Sudipta Sarkar
Year Published:

The economic and ecological costs of wildfire in the United States have risen substantially in recent decades. Although climate change has likely enabled a portion of the increase in wildfire activity, the direct role of people in increasing…
Author(s): Jennifer Balch, Bethany A. Bradley, John T. Abatzoglou, R. Chelsea Nagy, Emily J. Fusco, Adam L. Mahood
Year Published:

The Wildland Urban Interface Wildfire Mitigation Desk Reference Guide is designed to provide basic background information on relevant programs and terminology for those, whether community members or agency personnel, who are seeking to enhance their…
Author(s): National Wildfire Coordinating Group (NWCG)
Year Published:

Spatial wildfire suppression costs regressions have been re-estimated at a more disaggregated level for the nine Geographic Area Coordination Center (GACC’s) regions using five years of data for fires involving National Forests. Results of these…
Author(s): Armando Gonzalez-Caban, John B. Loomis, Robin Reich, Douglas B. Rideout, José J. Sánchez
Year Published:

Two of the primary global change factors that threaten shrublands worldwide are loss of native perennial herbaceous species due to inappropriate livestock grazing and loss of native shrubs due to altered fire regimes.We asked: (1) how do the…
Author(s): Jeanne C. Chambers, David Board, Bruce A. Roundy, Peter J. Weisberg
Year Published:

Wildfires and prescribed fires produce emissions that are harmful to human health. These health effects, however, are difficult to quantify, likely in part due to sparse data on exposure. The ability to measure fire emissions as they reach sensitive…
Author(s): John Volckens, Scott Kelleher
Year Published:

Modeling can play a critical role in assessing and mitigating risks posed by natural hazards. These modeling efforts generally aim to characterize the occurrence, intensity, and potential consequences of natural hazards. Uncertainties surrounding…
Author(s): Matthew P. Thompson, Jord J. Warmink
Year Published:

The objectives of this study were to identify whitebark pine fire-climate interactions, and tree establishment and mortality patterns in a landscape context. Specific objectives were to : 1) develop a whitebark pine tree-ring chronology to date fire…
Author(s): Alan H. Taylor, Catherine Airey Lauvaux
Year Published:

Wildland fire suppression practices in the western United States are being widely scrutinized by policymakers and scientists as costs escalate and large fires increasingly affect social and ecological values. One potential solution is to change…
Author(s): Alan A. Ager, Ana M. G. Barros, Haiganoush K. Preisler, Michelle A. Day, Thomas A. Spies, John D. Bailey, John P. Bolte
Year Published: