Skip to main content

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

Document Type

Topic

Ecosystem

Displaying 3041 - 3060 of 6068 results

Wildland firefighters suppressing wildland fires or conducting prescribed fires work long shifts and are exposed to high levels of smoke with no respiratory protection. Inhalation of smoke is a safety concern for wildland firefighters and can…
Author(s): Kathleen M. Navarro, Stacey S. Frederick
Year Published:

The wildland fire environment is entering a new age of complexity in terms of not only the biophysical fire environment but also the social environment. More and more attention is being paid to the human side of fire and the role that leadership…
Author(s): Alexis L. Waldron, Mike Alarid
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:

I present the case for a fire-centric scholarship, and suggest the transition between burning living landscapes and lithic ones (in the form of fossil fuels) would make a good demonstration of what such scholarship might do and what its value could…
Author(s): Stephen Pyne
Year Published:

Climate change is disrupting historical patterns of adaptation in temperate and boreal tree species, causing local populations to become maladapted. Tree improvement programs typically utilise local base populations and manage adaptation using…
Author(s): Ian R. MacLachlan, Tongli Wang, Andreas Hamann, Pia Smets, Sally N. Aitken
Year Published:

Ecological restoration treatments are being implemented at an increasing rate in ponderosa pine and other dry conifer forests across the western United States, via the USDA Forest Service’s Collaborative Forest Landscape Restoration (CFLR) program.…
Author(s): Jennifer S. Briggs, Paula J. Fornwalt, Jonas A. Feinstein
Year Published:

Early-seral forests are expanding throughout western North America as fire frequency and annual area burned increase, yet fire behaviour in young postfire forests is poorly understood. We simulated fire behaviour in 24-year-old lodgepole pine (Pinus…
Author(s): Kellen N. Nelson, Monica G. Turner, William H. Romme, Daniel B. Tinker
Year Published:

Context: Interactions among disturbances, climate, and vegetation influence landscape patterns and ecosystem processes. Climate changes, exotic invasions, beetle outbreaks, altered fire regimes, and human activities may interact to produce…
Author(s): Rachel A. Loehman, Robert E. Keane, Lisa M. Holsinger, Zhiwei Wu
Year Published:

The increase in area burned by wildfire has simultaneously brought increased concern about smoke impacts, both from wildfires and fires intentionally set to manage landscapes. Public concern about the potential health and other impacts of smoke can…
Author(s): Christine Olsen, Eric L. Toman, Stacey S. Frederick
Year Published:

Processes initiated by wildfire largely determine ecological characteristics of forested landscapes in subsequent decades, including vegetation composition, habitat quality, carbon balance, and probability of fire recurrence. Post-fire biomass…
Author(s): Jane A. Kertis, Steven A. Acker, Robert J. Pabst
Year Published:

Community‐level climate change indicators have been proposed to appraise the impact of global warming on community composition. However, non‐climate factors may also critically influence species distribution and biological community assembly. The…
Author(s): Adrián Regos, Miguel Clavero, Manuela D'Amen, Antoine Guisan, Lluis Brotons
Year Published:

Whitebark pine (Pinus albicaulis) forests have been declining throughout their range in western North America from the combined effects of mountain pine beetle (Dendroctonus ponderosae) outbreaks, fire exclusion policies, and the exotic disease…
Author(s): Robert E. Keane, Lisa M. Holsinger, M. F. Mahalovich, Diana F. Tomback
Year Published:

Summary: 1) Increased incidence of landscape fire and pollinator declines with co-extinctions of dependent plant species are both globally significant. Fire can alter species distributions, but its effects on plant–pollinator interactions are poorly…
Author(s): Julian Brown, Alan York, Fiona J. Christie, Michael A. McCarthy
Year Published:

We conducted bird surveys in 10 of the first 11 years following a mixed-severity fire in a dry, low-elevation mixed-conifer forest in western Montana, United States. By defining fire in terms of fire severity and time-since-fire, and then comparing…
Author(s): Richard L. Hutto, David A. Patterson
Year Published:

Increases in wildfire occurrence and severity under an altered climate can substantially impact terrestrial ecosystems through enhancing runoff erosion. Improved prediction tools that provide high resolution spatial information are necessary for…
Author(s): Gregory K. Gould, Mingliang Liu, Michael E. Barber, Keith A. Cherkauer, Peter R. Robichaud, Jennifer C. Adam
Year Published:

High-intensity wildfires are one of the leading causes of severe soil erosion in western U.S. watersheds. This erosion can lead to disruptive deposits of sediment in reservoirs and water supply systems. Fuel treatments such as controlled burns and…
Author(s): Brian Cooke
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:

Total post-fire tree seedling establishment (all species combined) declined sharply with greater post-fire drought severity and with greater distance to seed sources (i.e. the interior of burn patches). Effects varied among key species…
Author(s): Brian J. Harvey, Daniel C. Donato, Monica G. Turner
Year Published:

Increasing rates of natural disturbances under a warming climate raise important questions about how multiple disturbances interact. Escalating wildfire activity in recent decades has resulted in some forests re-burning in short succession, but how…
Author(s): Brian J. Harvey, Daniel C. Donato, Monica G. Turner
Year Published:

This report examines recent wildfires in the United States, summarizing their frequency, trends, and costs. It documents the increase in large wildfires and shows their concentration in western states. Cost and budget issues linked to wildfires are…
Author(s): Vera Brusentsev, Wayne Vroman
Year Published: