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Ecosystem

Displaying 3181 - 3200 of 6073 results

Every year wildland fires affect much more acreage in the United States compared to controlled burns. Like controlled burns, wildland fire can help promote biological diversity and healthy ecosystems. But despite these facts, wildland fire is not…
Author(s): Brian Cooke
Year Published:

Risk management is being increasingly promoted as an appropriate method for addressing wildland fire management challenges. However, a lack of a common understanding of risk concepts and terminology is hindering effective application. In response,…
Author(s): Matthew P. Thompson, Tom Zimmerman, Dan Mindar, Mary A. Taber
Year Published:

One of the immediate challenges of wildfire management concerns threats to human safety and property in residential areas adjacent to non-cultivated vegetation. One approach for relieving this problem is to increase human community ‘adaptiveness’ to…
Author(s): Matthew S. Carroll, Travis B. Paveglio
Year Published:

The hazards-of-place model posits that vulnerability to environmental hazards depends on both biophysical and social factors. Biophysical factors determine where wildfire potential is elevated, whereas social factors determine where and how people…
Author(s): Gabriel Wigtil, Roger B. Hammer, Jeffrey D. Kline, Miranda H. Mockrin, Susan I. Stewart, Daniel Roper, Volker C. Radeloff
Year Published:

In late successional forests, stand development processes are often more easily monitored and are more closely related to key ecological parameters when using structural criteria rather than stand age or time since stand-replacing disturbance. In…
Author(s): Corey R. Halpin, Craig G. Lorimer
Year Published:

This publication chronicles the understanding, controlling, and impacts of mountain pine beetles (MPB) central to the Black Hills of South Dakota and Wyoming from the time they were described by Hopkins in 1902, through the presentation of data from…
Author(s): Russell T. Graham, Michael A. Battaglia, Theresa B. Jain, Lance A. Asherin, Stephen A. Mata
Year Published:

Record blazes swept across parts of the US in 2015, burning more than 10 million acres. The four biggest fire seasons since 1960 have all occurred in the last 10 years, leading to fears of a ‘new normal’ for wildfire. Fire fighters and forest…
Author(s): Tania L. Schoennagel, Penelope Morgan, Jennifer Balch, Philip E. Dennison, Brian J. Harvey, Richard L. Hutto, Meg A. Krawchuk, Max A. Moritz, Ray Rasker, Cathy L. Whitlock
Year Published:

Fire as a major evolutionary force has been disputed because it is considered to lack supporting evidence. If a trait has evolved in response to selection by fire then the environment of the plant must have been fire-prone before the appearance of…
Author(s): Byron B. Lamont, Tianhua He
Year Published:

In areas where fire regimes and forest structure have been dramatically altered, there is increasing concern that contemporary fires have the potential to set forests on a positive feedback trajectory with successive reburns, one in which extensive…
Author(s): Michelle Coppoletta, Kyle E. Merriam, Brandon M. Collins
Year Published:

Annual streamflows have decreased across mountain watersheds in the Pacific Northwest of the United States over the last ~70 years; however, in some watersheds, observed annual flows have increased. Physically based models are useful tools to reveal…
Author(s): Liang Wei, Timothy E. Link, Andrew T. Hudak, John D. Marshall, Kathleen L. Kavanagh, John T. Abatzoglou, Hang Zhou, Robert E. Pangle, Gerald N. Flerchinger
Year Published:

Following wildfires, forest managers often consider salvage logging burned trees to recover monetary value of timber, reduce fuel loads, or to meet other objectives.. Relatively little is known about the cumulative hydrologic effects of wildfire and…
Author(s): Joseph W. Wagenbrenner, Peter R. Robichaud, Robert E. Brown
Year Published:

Wildfire behavior is a complex and stochastic phenomenon that can present unique tactical management challenges. This paper investigates a multistage stochastic mixed integer program with full recourse to model spatially explicit fire behavior and…
Author(s): Erin J. Belval, Yu Wei, Michael Bevers
Year Published:

LANDFIRE’s suite of spatial data layers are a valuable resource for land managers because they stretch “wall-to-wall” across the US, are created with a consistent methodology and are updated over time. These data are designed to support broad-…
Author(s): Don Helmbrecht, Kori Blankenship
Year Published:

Sagebrush ecosystems are among the largest and most threatened ecosystems in North America. Greater sage-grouse has served as the bellwether for species conservation in these ecosystems and has been considered for listing under the Endangered…
Author(s): Deborah M. Finch, Douglas A. Boyce, Jeanne C. Chambers, Chris J. Colt, R. Kasten Dumroese, Stanley G. Kitchen, Clinton McCarthy, Susan E. Meyer, Bryce A. Richardson, Mary M. Rowland, Mark A. Rumble, Michael K. Schwartz, Monica S. Tomosy, Michael J. Wisdom
Year Published:

As part of the Whitebark Pine Ecosystem Foundation’s Annual Science and Management Workshop - Successes and Challenges in Managing the Jewel in the Crown of the Continent, participants saw first hand some of the challenges facing whitebark pine…
Author(s): Corey L. Gucker
Year Published:

Wildfire is an ever present, natural process shaping landscapes. Having the ability to accurately measure and predict wildfire occurrence and impacts to ecosystem goods and services, both retrospectively and prospectively, is critical for adaptive…
Author(s): Nicole M. Vaillant, Crystal A. Kolden, Alistair M. S. Smith
Year Published:

Increasing costs of wildfire management have highlighted the need to better understand suppression expenditures and potential tradeoffs of land management activities that may affect fire risks. Spatially and temporally descriptive data is used to…
Author(s): Michael S. Hand, Matthew P. Thompson, David E. Calkin
Year Published:

Wildfires shape the distribution and structure of vegetation across the inland northwestern United States. However, fire activity is expected to increase given the current rate of climate change, with uncertain outcomes. A fire impact that has not…
Author(s): Arjan J. H. Meddens, Crystal A. Kolden, James A. Lutz
Year Published:

Removal of fire-killed trees (i.e. post-fire or salvage logging) is often conducted in part to reduce woody fuel loads and mitigate potential reburn effects. Studies of post-salvage fuel dynamics have primarily used chronosequence or modelling…
Author(s): John L. Campbell, Daniel C. Donato, Joseph B. Fontaine
Year Published:

Disturbance and succession have long been of interest in ecology, but how landscape patterns of ecosystem structure and function evolve following large disturbances is poorly understood. After nearly 25 years, lodgepole pine (Pinus contorta var.…
Author(s): Monica G. Turner, Timothy G. Whitby, Daniel B. Tinker, William H. Romme
Year Published: