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Ecosystem

Displaying 2441 - 2460 of 5894 results

Natural resource managers face the need to develop strategies to adapt to projected future climates. Few existing climate adaptation frameworks prescribe where to place management actions to be most effective under anticipated future climate…
Author(s): Kathryn Ireland, Andrew J. Hansen, Robert E. Keane, Kristin Legg, Rob Gump
Year Published:

Understanding wildfire rate of spread (RoS) is often a key objective of many fire behavior modelling and measurement exercises. Using instrumented moderate scale laboratory burns we provide an assessment of eight different methods of flame front RoS…
Author(s): Joshua M. Johnston, Melanie J. Wheatley, Martin J. Wooster, Ronan Paugam, G. Matt Davies, Kaitlin A. DeBoer
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The Firewise Communities Program and other wildfire mitigation programs promote private property actions that alleviate the growing complexity, costs, and damages from wildfire. Despite significant research surrounding performance of mitigations…
Author(s): Travis B. Paveglio, Emma Kelly
Year Published:

Roughly 3% of the Earth's land surface burns annually, representing a critical exchange of energy and matter between the land and atmosphere via combustion. Fires range from slow smouldering peat fires, to low-intensity surface fires, to intense…
Author(s): Sally Archibald, Caroline E. R. Lehmann, Claire M. Belcher, William J. Bond, Ross A. Bradstock, Anne Laure Daniau, K. G. Dexter, Elisabeth J. Forrestel, M. Greve, Tianhua He, Steven I. Higgins, William A. Hoffmann, Byron B. Lamont, D. J. McGlinn, G. R. Moncrieff, Colin P. Osborne, Juli G. Pausas, Owen F. Price, Brad S. Ripley, Brendan M. Rogers, Dylan W. Schwilk, M. F. Simon, Merritt R. Turetsky, Guido R. Van der Werf, Amy E. Zanne
Year Published:

The Haines Index is intended to provide information on how midtropospheric conditions could lead to large or erratic wildfires. Only a few studies have evaluated its performance and those are primarily single fire studies. This study looks at 47…
Author(s): Brian E. Potter
Year Published:

The ecological literature offers many conflicting recommendations for how managers should respond to ecosystem change and novelty. We propose a framework in which forest managers may achieve desired forest characteristics by combining strategies for…
Author(s): Adena R. Rissman, Kevin D. Burke, Heather A. Kramer, Volker C. Radeloff, Paul R. Schilke, Owen A. Selles, Rachel H. Toczydlowski, Chloe B. Wardropper, Lori A. Barrow, Jennifer L. Chandler, Katelyn Geleynse, Andrew W. L'roe, Katherine M. Laushman, A. Lisa Schomaker
Year Published:

Wildfire is a common occurrence in the Northern Rockies and many tree species have adaptations to survive and regenerate after fire. The following information provides a general understanding of fire resistance and regeneration traits and strategies…
Author(s): Sharon M. Hood, Ilana L. Abrahamson, C. Alina Cansler
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Understanding burn severity is essential to provide an overview of the precursory conditions leading to fires as well as understanding the constraints placed on fire management services when mitigating their effects. Determining the minimum sampling…
Author(s): Alexander W. Holmes, Christoph Rüdiger, Sarah Harris, Nigel J. Tapper
Year Published:

During the 21st century, climate change is expected to alter aquatic habitats throughout the Northern Rocky Mountains, intermountain basins, and western Great Plains. Particularly in montane watersheds, direct changes are likely to include warmer…
Author(s): Michael K. Young, Daniel J. Isaak, Scott Spaulding, Cameron A. Thomas, Scott A. Barndt, Matthew C. Groce, Dona L. Horan, David E. Nagel
Year Published:

Optimal planning of the amount and type of resources needed for extinguishing a forest fire is a task that has been addressed in the literature, using models obtained from operational research. In this study, a general integer linear programming…
Author(s): Jorge Rodríguez-Veiga, María José Ginzo-Villamayor, Balbina Casas-Méndez
Year Published:

The Clark’s nutcracker has a mutualistic relationship with the whitebark pine, acting as the tree’s main seed dispersal mechanism.
Author(s): Robert E. Keane, Samuel A. Cushman
Year Published:

Adverse weather conditions and topographic influences are suspected to be responsible for most entrapments of firefighters in Australia. A lack of temporally and spatially coherent set of data however, hinders a clear understanding of the…
Author(s): Sébastien Lahaye, J. Sharples, Stuart Matthews, Simon Heemstra, Owen F. Price, Rachel Badlan
Year Published:

Fire weather indices are commonly used by fire weather forecasters to predict when weather conditions will make a wildland fire difficult to manage. Complex interactions at multiple scales between fire, fuels, topography, and weather make these…
Author(s): Alan F. Srock, Joseph J. Charney, Brian E. Potter, Scott L. Goodrick
Year Published:

Locations within forest fires that remain unburned or burn at low severity—known as fire refugia—are important components of contemporary burn mosaics, but their composition and structure at regional scales are poorly understood. Focusing on recent…
Author(s): Garrett W. Meigs, Meg A. Krawchuk
Year Published:

We used data collected from >1400 plots by a national forest inventory to quantify population-level indicators for a tree species of concern. Whitebark pine (Pinus albicaulis) has recently experienced high mortality throughout its US range, where…
Author(s): Sara Goeking, Deborah Kay Izlar
Year Published:

Understanding drivers of vegetation structure has direct implications for wildlife conservation and livestock management, but the relative importance of multiple disturbances interacting within the same system to shape vegetation structure remains…
Author(s): L.C. Connell, John Derek Scasta, Lauren M. Porensky
Year Published:

Large outdoor fires present a risk to the built environment. Examples often in the international media reports are wildfires that spread into communities, referred to as Wildland-Urban Interface (WUI) fires. WUI fires have destroyed communities…
Author(s): Sam Manzello, Sara S. McAllister, Sayaka Suzuki
Year Published:

Two hybrid aspen (Populus tremula L.×P. tremuloides Michx.) trials in southern Sweden were used for studies of clonal composition in the second of two root sucker regenerations. Trial 1 was established in 1998 and originally included eight clones…
Author(s): Lars-Göran Stener, Dainis Rungis, Viktorija Belevich, Johan Malm
Year Published:

Smouldering peat fires, the largest fires on Earth in terms of fuel consumption, are reported in six continents and are responsible for regional haze episodes. Haze is the large-scale accumulation of smoke at low altitudes in the atmosphere. It…
Author(s): Yuqi Hu, Nieves Fernandez-Anez, Thomas E. L. Smith, Guillermo Rein
Year Published:

Wildland fires degrade air quality and adversely affect human health. A growing body of epidemiology literature reports increased rates of emergency departments, hospital admissions and premature deaths from wildfire smoke exposure. Objective: Our…
Author(s): Neal L. Fann, Breanna Alman, Richard A. Broome, Geoffrey G. Morgan, Fay H. Johnston, George A. Pouliot, Ana G. Rappold
Year Published: