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Ecosystem

Displaying 1961 - 1980 of 5894 results

The wildfires that burned in the Northern Rockies region of the USA during the 2017 fire season provided an opportunity to evaluate the suitability of using broadscale and temporally limited infrared data on hot spot locations to determine the…
Author(s): Wesley G. Page, Natalie S. Wagenbrenner, Bret W. Butler, David L. Blunck
Year Published:

Most of the previous investigations on the relationship between PM2.5 chemical characteristics and wildfire focused on the predictions of particle components concentrations or future pollution scenarios. Little research has focused on trends…
Author(s): Weeberb J. Requia, Brent A. Coull, Petros Koutrakis
Year Published:

Researchers and managers increasingly recognize enterprise risk management as critical to addressing contemporary fire management challenges. Quantitative wildfire risk assessments contribute by parsing and mapping potentially contradictory positive…
Author(s): Christopher J. Dunn, Christopher D. O'Connor, Matthew J. Reilly, David E. Calkin, Matthew P. Thompson
Year Published:

To forestall loss of ecological values associated with forests, land managers need to consider where and when to prioritize active reforestation following major disturbance events. To aid this decision-making process, we summarize recent research…
Author(s): Angela M. White, Jonathan Long
Year Published:

Forest insects are showing increasing intensity of outbreaks and expanded ranges, and this has become a major challenge for forest managers. An understanding of these systems often depends upon detailed examination of complex interactions involving…
Author(s): Patrick M.A. James, Dezene P.W. Huber
Year Published:

Simulations of wildland fire risk are dependent on the accuracy and relevance of spatial data inputs describing drivers of wildland fire, including canopy fuels. Spatial data are freely available at national and regional levels. However, the spatial…
Author(s): Peder S. Engelstad, Michael J. Falkowski, Peter T. Wolter, Aaron J. Poznanovic, Patty Johnson
Year Published:

Large amounts of carbon are stored in northern peatlands. There is concern that greater wildfire severity following projected increases in summer drought will lead to higher post-fire carbon losses. We measured soil carbon dynamics in a Calluna…
Author(s): Roger Grau-Andrés, Alan Gray, G. Matt Davies, E. Marian Scott, Susan Waldron
Year Published:

Aim: Ecological properties governed by threshold relationships can exhibit heightened sensitivity to climate, creating an inherent source of uncertainty when anticipating future change. We investigated the impact of threshold relationships on our…
Author(s): Adam M. Young, Philip E. Higuera, John T. Abatzoglou, Paul A. Duffy, Feng Sheng Hu
Year Published:

Purpose of Review: This review is on global wildland fire management research needs from the standpoint of 'integrated fire management'. It seeks to apply a characterisation of fires to frame research needs, and also recognise some differences in…
Author(s): Peter F. Moore
Year Published:

We have read Cruz and Alexander’s comments regarding our manuscript titled ‘‘Evaluating Crown Fire Rate of Spread Predictions from Physics-Based Models’’ [1] and appreciate the opportunity to respond to their comments. In our original manuscript [1…
Author(s): Chad M. Hoffman, J. Ziegler, R. R. Linn, J. Canfield, W. Mell, Carolyn Hull Sieg, F. Pimont
Year Published:

Invasion of exotic annual grasses (EAG) and increased wildfire have led to an emphasis on managing rangeland plant communities for resistance to invasion and resilience to disturbances. In sagebrush steppe and similar rangelands, perennial…
Author(s): Matthew J. Germino, Matthew R. Fisk, Cara Applestein
Year Published:

Iron oxides are important pedogenic Cr(III)-bearing phases which experience high-temperature alteration via fire-induced heating of surface soil. In this study, we examine if heating-induced alteration of Cr(III)-substituted Fe oxides can…
Author(s): Edward D. Burton, Girish Choppala, Niloofar Karimian, Scott G. Johnston
Year Published:

Accurately modeling the duration and extent of soil heating from prescribed fires and wildfires is vital to predicting many second-order fire effects, including development of soil hydrophobicity and other biological, chemical, and physical effects…
Author(s): Peter R. Robichaud, William J. Massman, Anthony S. Bova, Antonio Girona-García, Mathew Lesiecki
Year Published:

Although there is convincing scientific research for the role of Indigenous fire practices in sustainable land management, Indigenous peoples' involvement in policy-making is limited. This paper presents findings from a fire management workshop…
Author(s): Bibiana A. Bilbao, Jayalaxshmi Mistry, Adriana Millán, Andrea Berardi
Year Published:

Resilience has become a common goal for science-based natural resource management, particularly in the context of changing climate and disturbance regimes. Integrating varying perspectives and definitions of resilience is a complex and often…
Author(s): Philip E. Higuera, Alexander L. Metcalf, Carol Miller, Brian Buma, Dave McWethy, Elizabeth C. Metcalf, Zak Ratjczak, Cara R. Nelson, Brian C. Chaffin, Richard C. Stedman, Sarah M. McCaffrey, Tania L. Schoennagel, Brian J. Harvey, Sharon M. Hood, Courtney Schultz, Anne E. Black, Dave Campbell, Julia H. Haggerty, Robert E. Keane, Meg A. Krawchuk, Judith C. Kulig, Rebekah Rafferty, Arika Virapongse
Year Published:

Fuel treatments are designed with multiple management goals, including improving suppression capacity and restoring the historical structure of dry forests. Fuelbreaks are a class of fuel treatment that remove fuels within a wide strip of land, with…
Author(s): Maureen C. Kennedy, Morris C. Johnson, Kendra Fallon, Deborah Mayer
Year Published:

Wildfire can exert considerable influence on many watershed processes, including the partitioning of precipitation by forest canopies. Despite general acknowledgement that canopy interception is reduced following wildfire, effects on net rainfall…
Author(s): Chris H. S. Williams, Uldis Silins, Sheena A. Spencer, Michael J. Wagner, Micheal Stone, Monica B. Emelko
Year Published:

Many ecosystems and landscapes are experiencing rapid and potentially persistent changes as the result of complex and potentially novel interactions of anthropogenic climate changes; shifting fire regimes; exotic plant, insect, and pathogen…
Author(s): Robert E. Keane, Rachel A. Loehman
Year Published:

A novel approach is presented to analyze smoke exposure and provide a metric to quantify health-related impacts. Our results support the current understanding that managing low-intensity fire for ecological benefit reduces exposure when compared to…
Author(s): D.W. Schweizer, Haiganoush K. Preisler, Ricardo Cisneros
Year Published:

This work examines the perceived impact of sociopolitical factors on large fire decision making. The study is based on a set of 74 large fires in USDA Forest Service Regions 5 and 6 for the years 2009-2013. All participants were fire managers, some…
Author(s): Armando Gonzalez-Caban, Donald G. MacGregor
Year Published: