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Ecosystem

Displaying 4061 - 4080 of 6016 results

Wildland fires and resulting effects have increased in recent years. Efforts are under way nationwide to proactively manage vegetative conditions to reduce the threat of wildland fires. Public support is critical to the successful implementation of…
Author(s): Eric Toman, Melanie Stidham, Bruce A. Shindler, Sarah M. McCaffrey
Year Published:

Two major factors affecting wilderness fire regimes and their management are climate variability and surrounding land use. Patterns in climate and housing densities are expected to change dramatically in the next several decades (IPCC 2007; Theobald…
Author(s): Carol Miller, John T. Abatzoglou, Timothy J. Brown, Alexandra D. Syphard
Year Published:

Natural disturbances play a key role in ecosystem dynamics and are important factors for sustainable forest ecosystem management. Quantitative models are frequently employed to tackle the complexities associated with disturbance processes. Here we…
Author(s): Rupert Seidl, Paulo M. Fernandes, Teresa Fidalgo Fonseca, François Gillet, Anna Maria Jönsson, Katarina Merganicova, Sigrid Netherer, A. Arpaci, Jean-Daniel Bontemps, Harald Bugmann, José Ramón González Olabarria, Petra Lasch, Céline Meredieu, Francisco Moreira, Mart Jan Schelhaas, G.M.J. Mohren
Year Published:

Many forests and their associated water resources are at increasing risk from large and severe wildfires due to high fuel accumulations and climate change. Extensive fuel treatments are being proposed, but it is not clear where such treatments…
Author(s): Mary Ellen Miller, Lee H. MacDonald, Peter R. Robichaud, William J. Elliot
Year Published:

This FEIS species review synthesizes information on the relationship of Oreamnos americanus (mountain goat) to fire--how fire affects the species and its habitat, effects of the species on fuels and fire regimes, and fire management considerations.…
Author(s): Robin J. Innes
Year Published:

This paper synthesizes existing information about the disturbance ecology of high-elevation five-needle pine ecosystems, describing disturbances regimes, how they are changing or are expected to change, and the implications for ecosystem persistence…
Author(s): Elizabeth M. Campbell, Robert E. Keane, Evan R. Larson, Michael P. Murray, Anna W. Schoettle, Carmen Wong
Year Published:

In mixed-ownership landscapes, fuels conditions on private lands have implications for fire risk on public lands and vice versa. The success of efforts to mitigate fire risk depends on the extent, efficacy, and coordination of treatments on nearby…
Author(s): A. Paige Fischer
Year Published:

In this article, we describe the design and development of a quantitative, geospatial risk assessment tool intended to facilitate monitoring trends in wildfire risk over time and to provide information useful in prioritizing fuels treatments and…
Author(s): Matthew P. Thompson, David E. Calkin, Julie W. Gilbertson-Day, Alan A. Ager
Year Published:

Vegetation change and anthropogenic development are altering ecosystems and decreasing biodiversity. Successful management of ecosystems threatened by multiple stressors requires development of ecosystem conservation plans rather than single species…
Author(s): Kirk W. Davies, Chad S. Boyd, Jeffrey L. Beck, Jonathan D. Bates, Tony J. Svejcar, Michael A. Gregg
Year Published:

Early-successional forest ecosystems that develop after stand-replacing or partial disturbances are diverse in species, processes, and structure. Post-disturbance ecosystems are also often rich in biological legacies, including surviving organisms…
Author(s): Mark E. Swanson, Jerry F. Franklin, Robert L. Beschta, Charles M. Crisafulli, Dominick A. DellaSala, Richard L. Hutto, David B. Lindenmayer, Frederick J. Swanson
Year Published:

Wildfire is a common natural disturbance that can influence stream ecosystems. Of particular concern are increases in water temperature during and following fires, but studies of these phenomena are uncommon. We examined effects of wildfires in 2000…
Author(s): Shad K. Mahlum, Lisa A. Eby, Michael K. Young, Chris G. Clancy, Mike Jakober
Year Published:

The increased frequency and severity of large wildfires in the western United States is an important ecological and management issue with direct relevance to amphibian conservation. Although the knowledge of fire effects on amphibians in the region…
Author(s): Blake R. Hossack, David S. Pilliod
Year Published:

We used novel methods for combining information from wildlife and vegetation field studies to develop guidelines for managing dead wood for wildlife and biodiversity. The DecAID Decayed Wood Advisor presents data on wildlife use of standing and down…
Author(s): Bruce G. Marcot, Janet L. Ohmann, Kim Mellen-McLean, Karen L. Waddell
Year Published:

Large scale fire whirls have not traditionally been recognized as a frequent phenomenon on wildland fires. However, there are anecdotal data suggesting that they can and do occur with some regularity. This paper presents a brief summary of this…
Author(s): Jason M. Forthofer, Bret W. Butler
Year Published:

Climatic changes are predicted to significantly affect the frequency and severity of disturbances that shape forest ecosystems. We provide a synthesis of climate change effects on native bark beetles, important mortality agents of conifers in…
Author(s): Barbara J. Bentz, Jacques Regniere, Christopher J. Fettig, E. Matthew Hansen, Jane L. Hayes, Jeffrey A. Hicke, Rick G. Kelsey, Jose F. Negron, Steven J. Seybold
Year Published:

Wildfire emissions are challenging to measure and model, but simple and realistic estimates can benefit multiple disciplines. We evaluate the potential of MODIS (Moderate Resolution Imaging Spectroradiometer) data to address this objective. A total…
Author(s): Sarah B. Henderson, Charles Ichoku, Benjamin J. Burkholder, Michael Brauer, Peter L. Jackson
Year Published:

This FEIS species review synthesizes information on the relationship of Coronilla varia (crownvetch) to fire--how fire affects the species and its habitat, invasiveness of the species, effects of the species on fuels and fire regimes, and fire…
Author(s): Corey L. Gucker
Year Published:

The generalist pathogen Pyrenophora semeniperda (Brittlebank and Adam) Shoemaker occurs primarily in cheatgrass (Bromus tectorum L.) seed banks, where it causes high seed mortality (Beckstead et al. 2007; Meyer et al. 2007). How does fire impact…
Author(s): Julie Beckstead, Susan E. Meyer, Laura E. Street, Phil S. Allen
Year Published:

Since the introduction prior to 1915 of white pine blister rust (Cronartium ribicola) into the forests of western North America, many populations of native white pine species have seriously declined. Because western white pine (Pinus monticola) and…
Author(s): Stefan Zeglen, John Pronos, H. Merler
Year Published:

This synthesis of post-fire treatment effectiveness reviews the past decade of research, monitoring, and product development related to post-fire hillslope emergency stabilization treatments, including erosion barriers, mulching, chemical soil…
Author(s): Peter R. Robichaud, Louise E. Ashmun, Bruce D. Sims
Year Published: