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Ecosystem

Displaying 2741 - 2760 of 5960 results

Sparsely distributed species attract conservation concern, but insufficient information on population trends challenges conservation and funding prioritization. Occupancy-based monitoring is attractive for these species, but appropriate sampling…
Author(s): Quresh Latif, Martha M. Ellis, Victoria A. Saab, Kim Mellen-McLean
Year Published:

Wildland fire smoke is a complex mixture of air contaminants that have the potential cause adverse health effects. Individuals can be exposed occupationally if they work as wildland firefighters or public exposure from ambient air that is…
Author(s): Joe Domitrovich, George Broyles, Roger D. Ottmar, Timothy E. Reinhardt, Luke P. Naeher, Michael T. Kleinman, Kathleen M. Navarro, Christopher E. Mackay, Olorunfemi Adetona
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Prescribed burns of winter wheat stubble and Kentucky bluegrass fields in northern Idaho and eastern Washington states (U.S.A.) were sampled using ground-, aerostat-, airplane-, and laboratory-based measurement platforms to determine emission…
Author(s): Amara L. Holder, Brian K. Gullett, Shawn P. Urbanski, Robert Elleman, Susan M. O'Neill, Dennis Tabor, William Mitchell, Kirk R. Baker
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Collaborative efforts have expanded in recent years to reduce fuel loads and restore the resilience of forest landscapes to future fires. The social acceptability of harvesting and using forest biomass associated with these programs are a hot topic…
Author(s): Jessica M. Western, Anthony S. Cheng, Nathaniel Anderson, Pamela Motley
Year Published:

There is much interest in the role of insurance in encouraging homeowners to mitigate wildfire risk to their properties. For example, the Fire Adapted Communities Coalition characterizes the insurance industry as a 'nontraditional stakeholder' that…
Author(s): James R. Meldrum, Christopher M. Barth, Patricia A. Champ, Hannah Brenkert-Smith, Lilia C. Falk, Travis Warziniack
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This document details a fire management strategy for facilitating the restoration of whitebark pine on subalpine landscapes of the Crown of the Continent (COTC). The heart of the management strategy is Table 1 that specifies the most appropriate…
Author(s): Robert E. Keane, Darren Quinn, Jed Cochrane
Year Published:

Mulching fuels treatments have been increasingly implemented by forest managers in the western USA to reduce crown fire hazard. These treatments use heavy machinery to masticate or chip unwanted shrubs and small-diameter trees and broadcast the…
Author(s): Paula J. Fornwalt, Monique E. Rocca, Michael A. Battaglia, Charles C. Rhoades, Michael G. Ryan
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Mastication is a silvicultural technique that grinds, shreds, or chops trees or shrubs into pieces and redistributes the biomass onto the forest floor to form a layer of woody debris. Unlike other fuel treatments that remove this biomass, masticated…
Author(s): Pamela G. Sikkink, Theresa B. Jain, James J. Reardon, Faith A. Heinsch, Robert E. Keane, Bret W. Butler, Scott L. Baggett
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Numerous studies have documented significant change in conifer forests of the American West following the cessation of recurrent fire at the end of the 19th century. But the successional dynamics that characterize different forested settings in the…
Author(s): James D. Johnston
Year Published:

The growing frequency of large wildland fires has raised awareness of the ‘wildfire paradox’ and the ‘firefighting trap’ that are both rooted in the fire exclusion paradigm. However, a paradigm shift has been unfolding in the wildland fire community…
Author(s): Timothy Ingalsbee
Year Published:

Shifting fire regimes alter forest structure assembly in ponderosa pine forests and may produce structural heterogeneity following stand-replacing fire due, in part, to fine-scale variability in growing environments. We mapped tree regeneration in…
Author(s): Justin P. Ziegler, Chad M. Hoffman, Paula J. Fornwalt, Carolyn Hull Sieg, Michael A. Battaglia, Marin Chambers, Jose M. Iniguez
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Wildfire behavior depends on the type, quantity, and condition of fuels, and the effect that bark beetle outbreaks have on fuels is a topic of current research and debate. Remote sensing can provide estimates of fuels across landscapes, although few…
Author(s): Benjamin C. Bright, Andrew T. Hudak, Arjan J. H. Meddens, Todd J. Hawbaker, Jennifer S. Briggs, Robert E. Kennedy
Year Published:

Prescribed burning is a primary tool for habitat restoration and management in fire-adapted grasslands. Concerns about detrimental effects of burning on butterfly populations, however, can inhibit implementation of treatments. Burning in cool and…
Author(s): Kathryn C. Hill, Jonathan D. Bakker, Peter W. Dunwiddie
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We collected soil-hydraulic property data from the literature for wildfire-affected soils, ash, and unburned soils. These data were used to calculate metrics and timescales of hydrologic response related to infiltration and surface runoff generation…
Author(s): Brian A. Ebel, John A. Moody
Year Published:

Straw mulch is commonly used for post-fire erosion control in severely burned areas but this practice can introduce non-native species, even when certified weed-free straw is used. Rice straw has recently been promoted as an alternative to wheat…
Author(s): Kristen L. Shive, Becky L. Estes, Angela M. White, Hugh Safford, Kevin L. O'Hara, Scott L. Stephens
Year Published:

Human-caused wildfires are controlled by human and natural influences, and determining their key drivers is critical for understanding spatial patterns of wildfire and implementing effective fire management. We examined an array of explanatory…
Author(s): Philip E. Camp, Meg A. Krawchuk
Year Published:

A long history of fire suppression in the western United States has significantly changed forest structure and ecological function, leading to increasingly uncharacteristic fires in terms of size and severity. Prior analyses of fire severity in…
Author(s): Alisa Keyser, Anthony L. Westerling
Year Published:

Objective: The purpose of this study was to identify wildland firefighters’ (WLFFs) self-reported hydration and nutrition practices, they perceived may impact health and safety while on an active fire assignment in the United States.   Study…
Author(s): Samantha Worden, Callie N. Collins, Annie Roe, Katie Brown, Alistair M. S. Smith, Crystal A. Kolden, Andrew S. Nelson, Randy Brooks, Samantha Ramsay
Year Published:

Sediment recovery following disturbances is a measure of the time required to attain pre-disturbance sediment fluxes. Insight into the controls on recovery processes and pathways builds understanding of geomorphic resilience. We assess post-…
Author(s): Sara Rathburn, Scott M. Shahverdian, Sandra E. Ryan
Year Published:

Wildfires across western North America have increased in number and size over the past three decades, and this trend will continue in response to further warming. As a consequence, the wildland–urban interface is projected to experience…
Author(s): Tania L. Schoennagel, Jennifer Balch, Hannah Brenkert-Smith, Philip E. Dennison, Brian J. Harvey, Meg A. Krawchuk, Nathan Mietkiewicz, Penelope Morgan, Max A. Moritz, Ray Rasker, Monica G. Turner, Cathy L. Whitlock
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