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Ecosystem

Displaying 3901 - 3920 of 6066 results

Place mapping is emerging as a way to understand the spatial components of people's relationships with particular locations and how these relate to support for management proposals. But despite the spatial focus of place mapping, scale is rarely…
Author(s): Michael A. Cacciapaglia, Laurie Yung, Michael E. Patterson
Year Published:

There is increasing interest in actively managing forests to increase their resilience to climate-related changes. Although forest managers rely heavily on the use of silvicultural treatments that manipulate stand structure and stand dynamics to…
Author(s): Gunnar C. Carnwath, David W. Peterson, Cara R. Nelson
Year Published:

In this study of a burned watershed in northwestern Wyoming, USA, sedimentation impacts following a moderately-sized fire (Boulder Creek burn, 2000) were evaluated against sediment loads estimated for the period prior to burning. Early observations…
Author(s): Sandra E. Ryan, Kathleen A. Dwire
Year Published:

Current fire policy to restore ecosystem function and resiliency and reduce buildup of hazardous fuels implies a larger future role for fire (both natural and human ignitions) (USDA Forest Service and U.S. Department of the Interior 2000). Yet some…
Author(s): Anne E. Black, Peter Landres
Year Published:

A century of fire suppression has created unnaturally dense stands in many western North American forests, and silviculture treatments are being increasingly used to reduce fuels to mitigate wildfire hazards and manage insect infestations. Thinning…
Author(s): Jennifer L. Birdsall, Ward W. McCaughey, Justin B. Runyon
Year Published:

Management of federal public forests to meet sustainability goals and multiple use regulations is an immense challenge. To succeed, we suggest use of formal decision science procedures and tools in the context of structured decision making (SDM).…
Author(s): Bruce G. Marcot, Matthew P. Thompson, Michael C. Runge, Frank R. Thompson, Steven G. McNulty, David Cleaves, Monica S. Tomosy, Larry A. Fisher, Andrew Bliss
Year Published:

The effects of wildfire on aquatic systems and fishes occurring in them has been linked to the direct or immediate influence of the fire on water quality and the indirect or subsequent effects on watershed characteristics and processes that…
Author(s): Bruce E. Rieman, Robert E. Gresswell, John N. Rinne
Year Published:

This FEIS species review synthesizes information on the relationship of Ranunculus glaberrimus (sagebrush buttercup) to fire--how fire affects the species and its habitat, effects of the species on fuels and fire regimes, and fire management…
Author(s): Rachelle Meyer
Year Published:

In 2009, the federal Joint Fire Science Program (JFSP) initiated a national network of boundary organizations, known as regional fire science consortia, to accelerate the awareness, understanding, and use of wildland fire science. Needs assessments…
Author(s): Susan D. Kocher, Eric Toman, Sarah F. Trainor, Vita Wright, Jennifer S. Briggs, Charles P. Goebel, Eugenie M. MontBlanc, Annie Oxarart, Donna Peppin, Toddi A. Steelman, Andrea E. Thode, Thomas A. Waldrop
Year Published:

Logistic regression models used to predict tree mortality are critical to post-fire management, planning prescribed burns and understanding disturbance ecology. We review literature concerning post-fire mortality prediction using logistic regression…
Author(s): Travis J. Woolley, David C. Shaw, Lisa Ganio, Stephen A. Fitzgerald
Year Published:

Foliar moisture content is an important factor regulating how wildland fires ignite in and spread through live fuels but moisture content determination methods are rarely standardised between studies. One such difference lies between the uses of…
Author(s): William Matt Jolly, Ann M. Hadlow
Year Published:

Between 2000 and 2010 the US Forest Service and the Department of the Interior experienced 82 wildland fire fatalities. Our most recent organizational focus has been to eliminate fatalities. The chief of the USFS, in a letter to all employees, asked…
Author(s): Ivan Pupulidy
Year Published:

Understanding effects of changes in ecological disturbance regimes on soil properties, and capacity of soil properties to resist disturbance, is important for assessing ecological condition. In this meta-analysis, we examined the resilience of…
Author(s): Joel B. Sankey, Temuulen T. Sankey, Matthew J. Germino
Year Published:

Time-resolved radiative and convective heating measurements were collected on a prescribed burn in coniferous fuels at a sampling frequency of 500 Hz. Evaluation of the data in the time and frequency domain indicate that this sampling rate was…
Author(s): David Frankman, Brent W. Webb, Bret W. Butler, Daniel M. Jimenez, Michael G. Harrington
Year Published:

Fire is often used in northern grasslands to control invasive grass species but has unknown effects on Tamarix spp., more recent invaders. Temperature (using an oven as a fire surrogate) and duration combinations that would be most lethal to Tamarix…
Author(s): Michelle K. Ohrtman, Sharon A. Clay, David E. Clay, Alaexander J. Smart
Year Published:

Boreal forest fires are an important source of terrestrial carbon emissions, particularly during years of widespread wildfires. Most carbon emission models parameterize wildfire impacts and carbon flux to area burned by fires, therein making the…
Author(s): Crystal A. Kolden, John T. Abatzoglou
Year Published:

Lodgepole pine is one of the most widely distributed conifers in North America, with a mixed-severity rather than stand-replacement fire regime throughout much of its range. These lodgepole pine forests are patchy and often two-aged. Fire exclusion…
Author(s): Sharon M. Hood, Helen Y. Smith, David K. Wright, Lance S. Glasgow
Year Published:

The invasive annual grass downy brome is the most ubiquitous weed in sagebrush systems of western North America. The center of invasion has largely been the Great Basin region, but there is an increasing abundance and distribution in the Rocky…
Author(s): Brian A. Mealor, Samuel Cox, D. Terrance Booth
Year Published:

Using forests to sequester carbon in response to anthropogenically induced climate change is being considered across the globe. A recent U.S. executive order mandated that all federal agencies account for sequestration and emissions of greenhouse…
Author(s): Scott L. Stephens, Ralph E. Boerner, Jason J. Moghaddas, Emily E. Y. Moghaddas, Brandon M. Collins, Christopher B. Dow, Carleton B. Edminster, Carl E. Fiedler, Danny L. Fry, Bruce R. Hartsough, Jon E. Keeley, Eric E. Knapp, James D. McIver, Carl N. Skinner
Year Published:

In Rocky Mountain forests, fire can act as a mechanism of change in plant community composition if postfire conditions favor establishment of species other than those that dominated prefire tree communities. We sampled pre and postfire overstory and…
Author(s): David A. McKenzie, Daniel B. Tinker
Year Published: