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Ecosystem

Displaying 5501 - 5520 of 6066 results

There are four major questions affecting the future of ecological restoration. The first and most serious question is philosophical. Should we attempt to restore ecosystems? Some people want to separate humans from nature because they believe that…
Author(s): Thomas M. Bonnicksen
Year Published:

Prescribed fire is an important management tool to increase herbaceous productivity and maintain seral communities of Intermountain sagebrush grasslands. Currently, pastures treated with prescribed fire are rested from livestock grazing before…
Author(s): Steven J. Jirik, Stephen C. Bunting
Year Published:

This FEIS species review synthesizes information on the relationship of Deschampsia elongata (slender hairgrass) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Author(s): Lora L. Esser
Year Published:

Total particulate matter (PM) emissions were estimated for recent fires (1979-1990) and the presettlement period (prior to 1935) in the Selway-Bitterroot Wilderness (SBW) in Idaho and Montana. Recent period emissions were calculated by 10-day…
Author(s): James K. Brown, Larry S. Bradshaw
Year Published:

This FEIS species review synthesizes information on the relationship of Aquila chrysaetos (golden eagle) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Julie L. Tesky
Year Published:

This FEIS species review synthesizes information on the relationship of Ratibida columnifera (upright prairie coneflower) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Author(s): Roberta A. Walsh
Year Published:

Sagebrush seedling establishment appeared to be strongly related to moisture availability as influenced by ecological site, soil surface texture, herbaceous competition, microtopography, seedling year precipitation, exposure, position on slope, etc…
Author(s): Mike Boltz
Year Published:

This FEIS species review synthesizes information on the relationship of Tympanuchus phasianellus (sharp-tailed grouse) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Author(s): Julie L. Tesky
Year Published:

This FEIS species review synthesizes information on the relationship of Chimaphila umbellata (pipsissewa) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Robin F. Matthews
Year Published:

This FEIS species review synthesizes information on the relationship of Bromus vulgaris (Columbia brome) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Roberta A. Walsh
Year Published:

Following fire, changes in streamflow and bank stability in burned watersheds can mobilize coarse woody debris. In 1990 and 1991, I measured characteristics of coarse woody debris and standing riparian trees and snags in Jones Creek, a watershed…
Author(s): Michael K. Young
Year Published:

This FEIS species review synthesizes information on the relationship of Festuca subulata (bearded fescue) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Lora L. Esser
Year Published:

This FEIS species review synthesizes information on the relationship of Dumetella carolinensis (gray catbird) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Author(s): Janet Sullivan
Year Published:

This FEIS species review synthesizes information on the relationship of Hierochloe odorata (sweetgrass) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Roberta A. Walsh
Year Published:

This FEIS species review synthesizes information on the relationship of Falco sparverius (American kestrel) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Julie L. Tesky
Year Published:

This FEIS species review synthesizes information on the relationship of Carex capitata (capitate sedge) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Roberta A. Walsh
Year Published:

Sagebrush is considered to be an obligate vesicular-arbuscular mycorrhizal plant. Some studies have shown that burning lowers the mycorrhizal inoculum potential (MIP) of the soil (Klopatek and others 1988, 1990; Wicklow-Howard 1989). If this happens…
Author(s): Jan E. Gurr, Marcia Wicklow-Howard
Year Published:

The paleoecologic record of the northern Rocky Mountains shows considerable spatial variability, which has been difficult to explain as a unified response to large-scale changes in effective moisture or temperature through time. Comparison of past…
Author(s): Cathy L. Whitlock, Patrick J. Bartlein
Year Published:

Whitebark pine (Pinus albicaulis), an important producer of food for wildlife, is decreasing in abundance in western Montana due to attacks by the white pine blister rust fungus (Cronartium ribicola), epidemics of mountain pine beetle (Dendroctonus…
Author(s): Robert E. Keane, Stephen F. Arno
Year Published:

This FEIS species review synthesizes information on the relationship of Zenaida macroura (mourning dove) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Julie L. Tesky
Year Published: