Skip to main content

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

Document Type

Topic

Ecosystem

Displaying 2741 - 2760 of 6016 results

Hybrid aspen (Populus tremula L.  P. tremuloides Michx.) has recently been introduced commercially in the Nordic and Baltic forestry. The hybrid is suitable for biomass production under high latitude conditions and the productivity is promising.…
Author(s): Lars Rytter, Rose-Marie Rytter
Year Published:

In many forested ecosystems, it is increasingly recognized that the probability of burning is substantially reduced within the footprint of previously burned areas. This self‐limiting effect of wildland fire is considered a fundamental emergent…
Author(s): Sean A. Parks, Marc-Andre Parisien, Carol Miller, Lisa M. Holsinger, Scott L. Baggett
Year Published:

Wildland firefighters in the US are mandated to identify areas that provide adequate separation between themselves and the flames (i.e. safety zones) to reduce the risk of burn injury. This study presents empirical models that estimate the distance…
Author(s): Wesley G. Page, Bret W. Butler
Year Published:

Structure loss in wildland fires has significantly increased over the past few decades, affected by increased development in rural areas, changing fuel management policies, and climate change, all of which are projected to increase in the future.…
Author(s): Raquel S. P. Hakes, Sara E. Caton, Daniel J. Gorham, Michael J. Gollner
Year Published:

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:

We have constructed a fire weather climatology over North America from 1979 to 2015 using the North American Regional Reanalysis dataset and the Canadian Fire Weather Index (FWI) System. We tested for the presence of trends in potential fire season…
Author(s): Piyush Jain, Xianli Wang, Michael D. Flannigan
Year Published:

Past and current forest management affects wildland fire smoke impacts on downwind human populations. However, mismatches between the scale of benefits and risks make it difficult to proactively manage wildland fires to promote both ecological and…
Author(s): Jonathan Long, Leland W. Tarnay, Malcolm P. North
Year Published:

Precommercial thinning (PCT) is used to increase tree size and shorten harvest rotation time. Short-term results from PCT studies often show a trade-off between individual-tree growth and net stand yield, while longer-term effects of PCT on tree…
Author(s): Michael S. Schaedel, Andrew J. Larson, David L.R. Affleck, R. Travis Belote, John M. Goodburn, David K. Wright, Elaine Kennedy Sutherland
Year Published:

Understanding the drivers of ecosystem responses to disturbance is essential for management aimed at maintaining or restoring ecosystem processes and services, especially where invasive species respond strongly to disturbance. In this study, we used…
Author(s): Alexandra K. Urza, Peter J. Weisberg, Jeanne C. Chambers, Jessica M. Dhaemers, David Board
Year Published:

This report examines federal officials' and stakeholders' views on (1) factors that affect federal-nonfederal collaboration aimed at reducing wildland fire risk to communities and (2) actions that could improve their ability to reduce risk to…
Author(s): U.S. Government Accountability Office
Year Published:

The primary theme of our study is the cost-effectiveness of fuel treatment at multiple scales, addressing the question of whether fuel treatments can be justified on the basis of saved suppression costs. Our study was designed to track the influence…
Author(s): Matthew P. Thompson, Karen L. Riley, Dan R. Loeffler, Jessica R. Haas
Year Published:

Timber harvesting operations generate brush and other vegetative debris, which often has no marketable value. In many western U.S. forests, these materials represent a fire hazard and a potential threat to forest health and must be removed or burned…
Author(s): Dan R. Loeffler, Stu Hoyt, Nathaniel Anderson
Year Published:

Wildfire and the threat it poses to society represents an example of the complex, dynamic relationship between social and ecological systems. Increasingly, wildfire adaptation is posited as a pathway to shift the approach to fire from a suppression…
Author(s): Hannah Brenkert-Smith, James R. Meldrum, Patricia A. Champ, Christopher M. Barth
Year Published:

Greater sage-grouse (Centrocercus urophasianus) are threatened by a continued loss of sagebrush (Artemisia ssp.) habitat. Recent, large scale wildfires have elevated the risk to sage-grouse as it may take up to several decades to more than a century…
Author(s): Kirk W. Davies, Matthew Madsen, Chad S. Boyd, Michael A. Gregg, April Hulet, Urban Strachan
Year Published:

In this issue of the GSD Update, we take a look back at selected studies of the Grassland, Shrubland and Desert Ecosystems Science Program (GSD) that depict its strengths and focus areas. Significant results of recent research and science delivery…
Author(s): Deborah M. Finch
Year Published:

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: