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Ecosystem

Displaying 4881 - 4900 of 5893 results

From the text ... "This article discusses factors that are critical to both firefighters and fire managers in ensuring a safe and productive workforce. First, it discusses such items as the work environment, the firefighter workforce, physical…
Author(s): Richard Mangan
Year Published:

This FEIS species review synthesizes information on the relationship of Artemisia cana, Artemisia cana subsp. Bolanderi, Artemisia cana subsp. cana, Artemisia cana subsp. viscidula (silver sagebrush, Bolander silver sagebrush, plains silver…
Author(s): Janet L. Howard
Year Published:

We examined the use of snag stands by seven species of cavity-nesting birds from 1994-1998. Selection of snags was studied in logged and unlogged burned forests at two spatial scales: microhabitat (local vegetation characteristics) and landscape (…
Author(s): Victoria A. Saab, Ree Brannon, Jonathan G. Dudley, Larry Donohoo, Dave Vanderzanden, Vicky Johnson, Henry Lachowski
Year Published:

Interactions between humans and wildfires have increased in many regions over the last decades driven by climate and land-use changes. A shift towards more adaptive fire management and policies is urgently needed but remains difficult to achieve.…
Author(s): Cristina Santin, Aristides Moustakas, Stefan H. Doerr
Year Published:

Wildfires in the Colorado Front Range can trigger dramatic increases in runoff and erosion. A better understanding of the causes of these increases is needed to predict the effects of future wildfires, estimate runoff and erosion risks from…
Author(s): J. Benavides-Solorio, Lee H. MacDonald
Year Published:

Reports the findings of a study comparing the results of instruments measuring smoke particulate in real time to gravimetric samplers in Missoula and Hamilton, Montana, during the summer of 2000. Real-time, particulate monitoring instruments were…
Author(s): Andy Trent, Mary A. Davies, Richard Karsky, Richard W. Fisher
Year Published:

Rainfall simulations allow for controlled comparisons of runoff and erosion among ecosystems and land cover conditions. Runoff and erosion can increase greatly following fire, yet there are few rainfall simulation studies for post-fire plots,…
Author(s): Matthew P. Johansen, Thomas E. Hakonson, David D. Breshears
Year Published:

None available
Author(s): Katherine Kendall, Robert E. Keane
Year Published:

Riparian habitats in eastern Oregon and Washington compose a small percentage of the landscape, and yet these habitats are essential for many species of vertebrates. Riparian areas are sensitive to disturbance agents, which can pose a formidable…
Author(s): Barbara C. Wales
Year Published:

Our objective was to document the effect of fire-history sampling on the mortality of mature ponderosa pine trees in Oregon. We examined 138 trees from which fire-scarred partial cross sections had been removed five to six years earlier, and 386…
Author(s): Emily K. Heyerdahl, Steven J. McKay
Year Published:

This FEIS species review synthesizes information on the relationship of Taeniatherum caput-medusae (medusahead) to fire--how fire affects the species and its habitat, invasiveness of the species, effects of the species on fuels and fire regimes, and…
Author(s): Amy Archer
Year Published:

We monitored the response of cavity-nesting species to three snag density treatments (high = 37-80 snags/ha, medium = 15-35 snags/ha, and low = 0-12 snags/ha) during two breeding seasons 4-5 yr post-fire and logging in Douglas-fir- ponderosa pine…
Author(s): Maryellen Haggard, William L. Gaines
Year Published:

Aspen exhibits a variety of ecological roles. In southern Colorado, the 1880 landscape mosaic contained a range of stand ages, of which half were >70 years old and half were younger. Pure aspen stands in southern Colorado are widespread and may…
Author(s): William H. Romme, Lisa Floyd-Hanna, David D. Hanna, Elisabeth Bartlett
Year Published:

This volume is divided into three sections: (1) Ecological, Biological, and Physical Science; (2) Social and Cultural; and (3) Economics and Utilization. Effective ecological restoration requires a combination of science and management. The authors…
Author(s): Regina K. Vance, Carleton B. Edminster, W. Wallace Covington, Julie A. Blake
Year Published:

Factors related to the composition of riparian forest stands on three streams in the northern Sierra Nevada mixed conifer forest type were related to proximity to the water course and years since fire. Using a linear regression analysis 46 variables…
Author(s): William H. Russell, Joe R. McBride
Year Published:

Land management agencies in northwest Wyoming have implemented an active prescribed fire program to address historically altered fire regimes, regenerate aspen, and improve overall watershed functions. Treated clones are susceptible to extensive…
Author(s): Steve Kilpatrick, Diane Abendroth
Year Published:

Changes in fire size, shape, and frequency under different fire-management strategies were evaluated using time series of fire perimeter data (fire atlases) and mapped potential vegetation types (PVTs) in the Gila-Aldo Leopold Wilderness Complex (…
Author(s): Matthew G. Rollins, Thomas W. Swetnam, Penelope Morgan
Year Published:

This FEIS species review synthesizes information on the relationship of Populus deltoides, Populus deltoides var. deltoides, Populus deltoides var. mislizeni, Populus deltoides var. monilifera (eastern cottonwood, eastern cottonwood, Rio Grande…
Author(s): Jane E. Taylor
Year Published:

Coarse woody debris (CWD) biomass was measured and mapped in burned, clearcut, and intact lodgepole pine forests in two areas of the Rocky Mountains of Wyoming: the Medicine Bow National Forest (MBNF) and Yellowstone National Park (YNP). In addition…
Author(s): Daniel B. Tinker, Dennis H. Knight
Year Published:

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Author(s): Raymond J. Hoff, Dennis E. Ferguson, Geral I. McDonald, Robert E. Keane
Year Published: