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Full-Text Articles in Physical Sciences and Mathematics

Ely Disrict Managed Natural And Prescribed Fire Plan, United States Department Of The Interior, Bureau Of Land Management Nov 2000

Ely Disrict Managed Natural And Prescribed Fire Plan, United States Department Of The Interior, Bureau Of Land Management

All U.S. Government Documents (Utah Regional Depository)

No abstract provided.


Management Guidelines For Sage Grouse And Sagebrush Ecosystems In Nevada, Bureau Of Land Management Oct 2000

Management Guidelines For Sage Grouse And Sagebrush Ecosystems In Nevada, Bureau Of Land Management

All U.S. Government Documents (Utah Regional Depository)

These management guidelines and supportive background information promote the conservation of sage grouse (Centrocercus urophasianus) and their sagebrush (Artemisia spp) habitats on Nevada public lands administered by Bureau of Land Management (BLM). The guidelines are intended to provide interim guidance to field managers, without restricting options currently being explored for regional, state, and local sage grouse/sagebrush conservation planning. The guidelines are a Nevada BLM, habitat-specific, adaptation of the recently updated, and soon to be finalized, Western Association of Wildlife Agencies (WAFWA) Draft Guidelines. The Nevada BLM guidelines apply the most current sage grouse science to BLM activities, within the context …


Western Rangeland Noxious Weeds: Collecting, Sharing And Using Information, U.S. Department Of Interior, U.S. Department Of Agriculture, Riley Memorial Foundation Sep 2000

Western Rangeland Noxious Weeds: Collecting, Sharing And Using Information, U.S. Department Of Interior, U.S. Department Of Agriculture, Riley Memorial Foundation

All U.S. Government Documents (Utah Regional Depository)

Western rangeland weeds such as yellow starthistle, leafy spurge, Canada thistle and Russian knapweed are causing tremendous losses to agricultural industries, including both crop and livestock production, and to environmental resources on private lands. Concurrently, many public lands managed by federal agencies are being steadily invaded. As a result, these lands held in the public trust are experiencing reductions in commodity yields, recreational opportunities, biodiversity and ecosystem function.


Effect Of Daily Fluctuations From Flaming Gorge Dam On Ice Processes In The Green River, John W. Hayse, Steven F. Daly, Andrew Tuthill, Richard A. Valdez, Bryan Cowdell, Gary Burton May 2000

Effect Of Daily Fluctuations From Flaming Gorge Dam On Ice Processes In The Green River, John W. Hayse, Steven F. Daly, Andrew Tuthill, Richard A. Valdez, Bryan Cowdell, Gary Burton

All U.S. Government Documents (Utah Regional Depository)

This report provides results and conclusions of a detailed investigation of ice processes in the main channel of the reach of the Green River between the downstream end of Split Mountain (River Mile [RM1] 320) and the Ouray, Utah Bridge (R.M248). The objective of the study was to examine the influence of daily fluctuations in water releases from Flaming Gorge Damon river ice processes in this reach, which serves as an overwintering area for endangered Colorado pikeminnow and razorback sucker. The objective of the study was met through examination of historical records of winter water and air temperatures, flow measurements, …


Responses Of Sphagnum And Carex Peatlands To Ultraviolet-B Radiation, And A Meta-Analysis Of Uv-B Effects On Vascular Plants, Peter S. Searles May 2000

Responses Of Sphagnum And Carex Peatlands To Ultraviolet-B Radiation, And A Meta-Analysis Of Uv-B Effects On Vascular Plants, Peter S. Searles

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The severity of stratospheric ozone depletion in the temperate and polar latitudes has raised concerns about the sensitivity of terrestrial vegetation and ecosystems to solar ultraviolet (UV-B) radiation. This dissertation examined the responses of plants and microbes to solar UV-B for 3 years in Tierra del Fuego, Argentina (55° S). This region is under the influence of the Antarctic "ozone hole" during the austral spring. Additionally, a quantitative review of the UV-B literature was conducted using a set of statistical techniques known as meta-analysis.

For the field studies in Tierra del Fuego, plots were established in a Sphagnum moss peatland …


Selenium Poisoning Of Wildlife And Western Agriculture: Cause And Effect, N. E. Korte Feb 2000

Selenium Poisoning Of Wildlife And Western Agriculture: Cause And Effect, N. E. Korte

All U.S. Government Documents (Utah Regional Depository)

This project examined the hypothesis that selenium contamination is not the principal cause of the decline of endemic fish species in the Upper Colorado Basin. Activities employed to test this hypothesis included a reconnaissance of locations altered by recent road construction, a reinterpretation of available literature regarding selenium toxicity, and the interpretation of unpublished data obtained from the Upper Colorado Basin Fish Recovery Program. The project demonstrates that most of the evidence implicating selenium is circumstantial. Specifically, this research demonstrates that neither the historical record nor the technical literature consistently supports the emphasis given selenium toxicity. For example, many locations …


Record Of Decision And Approved Resource Management Plan For Public Lands Administered By The Newcastle Field Office, United States Department Of The Interior, Bureau Of Land Management Jan 2000

Record Of Decision And Approved Resource Management Plan For Public Lands Administered By The Newcastle Field Office, United States Department Of The Interior, Bureau Of Land Management

Record of Decisions (WY)

This Resource Management Plan (RMP) provides the management direction for approximately 292,168 acres of BLM-administered public land surface and 1,698,866 acres of federal mineral estate administered by the Newcastle Field Office of the Bureau of Land Management (BLM) in Crook, Niobrara, and Weston counties in northeast Wyoming (Map 1, "General Location Map" located at the end of the "Planning and Management Decisions" section.) This Newcastle RMP supersedes all previous land-use planning decision documents for the planning area.


Assessing Interconnections Between Wilderness And Adjacent Lands: The Grand Staircase-Escalante National Monument, Utah, Janice L. Thomson, Dawn A. Hartley, Gregory H. Aplet, Peter A. Morton, Usda Forest Service Proceedings Jan 2000

Assessing Interconnections Between Wilderness And Adjacent Lands: The Grand Staircase-Escalante National Monument, Utah, Janice L. Thomson, Dawn A. Hartley, Gregory H. Aplet, Peter A. Morton, Usda Forest Service Proceedings

All U.S. Government Documents (Utah Regional Depository)

Wilderness managers have traditionally managed wilderness lands based on the ecological and social content of wilderness areas. The authors propose a framework to systematically account for the biophysical, socioeconomic, and wildness characteristics of the broader landscape context. The method was applied to the proposed wilderness lands of the Grand Staircase-Escalante National Monument in southern Utah. The results illustrate patterns of interdependencies across the landscape. Spatial data demonstrate links between the integrity of proposed wilderness lands and the management of adjacent land units, and links between the economic health of local communities and the management of proposed wilderness and adjacent federal …


Seismic Reflection Study Of Upheaval Dome, Canyonlands National Park, Utah, Z. Kanbur, J. N. Louie, S. Chavez-Perez, G. Plank, D. Morey Jan 2000

Seismic Reflection Study Of Upheaval Dome, Canyonlands National Park, Utah, Z. Kanbur, J. N. Louie, S. Chavez-Perez, G. Plank, D. Morey

Canyonlands Research Bibliography

The origin of Upheaval Dome, in Canyonlands National Park of southeastern Utah, has been a topic of controversy among geologists and planetary scientists. The structure has long been thought to have been created by salt diapirism from the underlying Paradox Formation. Recent studies have suggested that impact could have formed the dome. To test the various hypotheses, we acquired, processed, and interpreted seismic reflection data within and adjacent to the structure. Both conventionally stacked and prestack-migrated images show <100 m relief in the Paradox Formation, contrary to salt diapirism hypotheses. Further, we have identified features within the images typical of impact structures, such as listric normal faults having displacements toward the center of the dome. Deformation occurs in two depth ranges, with the faulting that created the central uplift appearing only above the Hermosa Formation, in the upper 800 m of the structure. The images also suggest limited fracturing of the Hermosa and salt flow in the Paradox Formation, perhaps due to gravitational relaxation of the crater form. Our image of a nearly flat top of the Paradox salt strongly favors an impact origin for Upheaval Dome.


Final Environmental Impact Statement Cabinet Gorge (No. 2058-014) And Noxon Rapids (No. 2075-014) Hydroelectric Projects Idaho And Montana, United States Department Of Energy Federal Energy Regulatory Commission Jan 2000

Final Environmental Impact Statement Cabinet Gorge (No. 2058-014) And Noxon Rapids (No. 2075-014) Hydroelectric Projects Idaho And Montana, United States Department Of Energy Federal Energy Regulatory Commission

Final Environmental Impact Statements (ID)

On February 17, 1999, Avista Corporation filed an application for relicense of the existing 231-megawatt Cabinet Gorge and 466-megawatt Noxon Rapids projects located on the Clark Fork River in Idaho and Montana. Avista Corporation's proposed relicensing alternative for these two projects includes a comprehensive settlement agreement that was developed through the use of the Commission's Alternative Licensing Procedures and a collaborative approach during prefiling consultation. As part of the settlement agreement, Avista Corporation is proposing to use an adaptive management approach to implement the various protection, mitigation, and enhancement measures. The staff's recommendation is to relicense the project as proposed …


Winter Use Plans Final Environmental Impact Statement Summary For The Yellowstone And Grand Teton National Parks And John D. Rockefeller, Jr., Memorial Parkway, United States, Department Of The Interior, National Forest Service Jan 2000

Winter Use Plans Final Environmental Impact Statement Summary For The Yellowstone And Grand Teton National Parks And John D. Rockefeller, Jr., Memorial Parkway, United States, Department Of The Interior, National Forest Service

Final Environmental Impact Statements (WY)

This document presents and analyzes seven alternatives for winter use management in Yellowstone National Park (YNP), Grand Teton National Park (GTNP), and the John D. Rockefeller, Jr., Memorial Parkway (the Parkway). YNP, encompassing 2.22 million acres, and GTNP, comprising 310,000 acres, form the core of the Greater Yellowstone Ecosystem, described as the last large, nearly intact ecosystem in the northern temperate zone. The approved plan will serve as a management plan for the three national parks.


Final Environmental Impact Statement South Baggs Area Natural Gas Development Project Carbon County, Wyoming, United States Department Of The Interior, Bureau Of The Land Management Jan 2000

Final Environmental Impact Statement South Baggs Area Natural Gas Development Project Carbon County, Wyoming, United States Department Of The Interior, Bureau Of The Land Management

Final Environmental Impact Statements (WY)

The FEIS contains corrected and new material which supplements the Draft Environmental Impact Statement (DEIS) issued May 14, 1999. The FEIS and the DEIS comprise the complete document. Please refer to the DEIS for more detailed analyses and descriptions of the proposed action and alternatives.


Final Environmental Impact Statement For The Horse Creek Coal Lease Application (Federal Coal Lease Application Wyw141435), United States Department Of The Interior, Bureau Of Land Management Jan 2000

Final Environmental Impact Statement For The Horse Creek Coal Lease Application (Federal Coal Lease Application Wyw141435), United States Department Of The Interior, Bureau Of Land Management

Final Environmental Impact Statements (WY)

This Final Environmental Impact Statement (EIS) assesses the environmental consequences of a federal decision to offer a federal coal tract located in southeastern Campbell County and northeastern Converse County, Wyoming for lease at a competitive, sealed bid sale, subject to standard and special lease stipulations. The Horse Creek Lease By Application (LBA) Tract as applied for by Antelope Coal Company includes approximately 2,840 acres containing approximately 356.5 million tons of federal coal. Antelope Coal Company operates the adjacent Antelope Mine and proposes to mine the Horse Creek LBA Tract as a maintenance tract for the existing mine, if a lease …


Winter Use Plans Final Environmental Impact Statement Volume Iii, Parts Ii And Iii, For The Yellowstone And Grand Teton National Parks And John D. Rockefeller, Jr., Memorial Parkway, United States, Department Of The Interior, National Park Service Jan 2000

Winter Use Plans Final Environmental Impact Statement Volume Iii, Parts Ii And Iii, For The Yellowstone And Grand Teton National Parks And John D. Rockefeller, Jr., Memorial Parkway, United States, Department Of The Interior, National Park Service

Final Environmental Impact Statements (WY)

Due to the large volume of comments, comments and responses in this section occur in several forms. Where a "summary comment" is indicated, it is a paraphrasing of many individual comments having the same basic context. A "summary response" therefore responds to all who commented in like fashion. Where a "comment" is indicated, normally this is a singular comment in the words of the person who commented. The "response" directed toward that individual comment. In some instances, a general response is given to a series of individual comments.


Winter Use Plans Final Environmental Impact Statement Volume I For The Yellowstone And Grand Teton National Parks And John D. Rockefeller, Jr., Memorial Parkway, United States, Department Of The Interior, National Park Service Jan 2000

Winter Use Plans Final Environmental Impact Statement Volume I For The Yellowstone And Grand Teton National Parks And John D. Rockefeller, Jr., Memorial Parkway, United States, Department Of The Interior, National Park Service

Final Environmental Impact Statements (WY)

In 1990, a Winter Use Plan was completed for Yellowstone National Park (YNP), Grand Teton National Park (GTNP), and the John D. Rockefeller, Jr., Memorial Parkway (the Parkway). In 1994 the National Park Service (NPS) and U.S. Forest Service began work on a coordinated interagency report on Winter Visitor Use Management. This effort was in reaction to an earlier than expected increase in winter use. The 1990 Winter Use Plan projected 143,000 visitors for the year 2000. In 1992-93 winter use in YNP and GTNP exceeded this estimate.


Winter Use Plans Final Environmental Impact Statement Volume Iii, Part I, For The Yellowstone And Grand Teton National Parks And John D. Rockefeller, Jr., Memorial Parkway, United States, Department Of The Interior, National Forest Service Jan 2000

Winter Use Plans Final Environmental Impact Statement Volume Iii, Part I, For The Yellowstone And Grand Teton National Parks And John D. Rockefeller, Jr., Memorial Parkway, United States, Department Of The Interior, National Forest Service

Final Environmental Impact Statements (WY)

Volume III includes public comments and corresponding NPS responses and is separated into three parts. Part I includes representative government, cooperator, organization, and individual comments and responses. Part II includes form letter comments and responses. The NPS responded directly to all comments in the letters found in Parts I and II. Part III is a summary of comments and responses by subject category. The comments in Part III differ markedly from those in Parts I and II in that they are a summary of the 500,000 comments received on the DEIS. Because of the voluminous nature of the DEIS comments, …


Environmental Assessment And Finding Of No Significant Impact For The Modified Jonah Field Ii Natural Gas Project, Sublette County, Wyoming, United States Department Of The Interior, Bureau Of Land Management Jan 2000

Environmental Assessment And Finding Of No Significant Impact For The Modified Jonah Field Ii Natural Gas Project, Sublette County, Wyoming, United States Department Of The Interior, Bureau Of Land Management

Environmental Assessments (WY)

Both the Pinedale Resource Area Resource Management Plan and the Green River Resource Area Resource Management Plan provide for the use of these public lands for oil and natural gas development. The Proposed Action would be in conformance with these land use plans, and no amendments to the RMPs would be necessary to implement the Proposed Action.


Effect Of Daily Fluctuations From Flaming Gorge Dam On Ice Processes In The Green River, John W. Hayse, Steven F. Daly, Andrew Tuthill, Richard A. Valdez, Bryan Cowdell, Gary Burton Jan 2000

Effect Of Daily Fluctuations From Flaming Gorge Dam On Ice Processes In The Green River, John W. Hayse, Steven F. Daly, Andrew Tuthill, Richard A. Valdez, Bryan Cowdell, Gary Burton

Elusive Documents

No abstract provided.


Utah Fire Amendment: Environmental Assessment, Pam Gardiner Jan 2000

Utah Fire Amendment: Environmental Assessment, Pam Gardiner

Elusive Documents

No abstract provided.


Value Engineering: Final Report- Bear River Migratory Bird Refuge Headquarters And Education Complex, U.S. Bureau Of Reclamation Jan 2000

Value Engineering: Final Report- Bear River Migratory Bird Refuge Headquarters And Education Complex, U.S. Bureau Of Reclamation

Elusive Documents

No abstract provided.


Record Of Decision Based On The Final Environmental Impact Statement For The South Manti Timber Salvage, United States Forest Service Jan 2000

Record Of Decision Based On The Final Environmental Impact Statement For The South Manti Timber Salvage, United States Forest Service

Record of Decisions (UT)

This project was initiated in response to epidemic spruce beetle (Dendroctonus rufipennis) activity across the South Manti landscape. The Final Environmental Impact Statement (FEIS) summarizes potential direct, indirect, and cumulative effects of corresponding site-specific forest management alternatives on portions of the Ferron-Price and Sanpete Ranger Districts of the Manti-La Sal National Forest.


South Manti Timber Salvage Final Environmental Impact Statement, United States Forest Service Jan 2000

South Manti Timber Salvage Final Environmental Impact Statement, United States Forest Service

Final environmental Impact Statements (UT)

This project was initiated in response to epidemic spruce beetle (Dendroctonus rufipennis) activity across approximately 24,597 acres of National Forest System lands within the southern portion of the Wasatch Plateau (Townships 19, 20, and 21 South; Range 4 East; SLM). The South Manti project area is located on the Manti-La Sal National Forest approximately 45 miles southwest of Price, Utah.


Final Environmental Impact Statement Brown Creek Timber Sale, United States Forest Service Jan 2000

Final Environmental Impact Statement Brown Creek Timber Sale, United States Forest Service

Final Environmental Impact Statements (ID)

This Final Environmental Impact Statement (FEIS) documents the analysis of three alternatives for the Brown Creek Timber Sale on the New Meadows Ranger District of the Payette National Forest. The Brown Creek project area is located on the east side of the New Meadows Ranger district, just south of Bally Mountain and just west of Granite Mountain.


First-Year Movements By Juvenile Mexican Spotted Owls In The Canyonlands Of Utah, D. W. Willey, C. Van Riper Jan 2000

First-Year Movements By Juvenile Mexican Spotted Owls In The Canyonlands Of Utah, D. W. Willey, C. Van Riper

Canyonlands Research Bibliography

We studied first-year movements of Mexican Spotted Owls (Strix occidentalis lucida) during natal dispersal in canyonlands of southern Utah. Thirty-one juvenile Mexican Spotted Owls were captured and radiotracked during 1992-95 to examine behavior and conduct experiments related to the onset of natal dispersal. Juvenile Spotted Owls dispersed from their nest areas during September to October each year, with 85% leaving in September. The onset of movements was sudden and juveniles dispersed in varied directions. The median distance from nest area to last observed location was 25.7 km (range = 1.7-92.3 km). Three of 26 juveniles tracked (11%) were alive after …


Provisional Report, University Of Utah, United States Government Jan 2000

Provisional Report, University Of Utah, United States Government

All U.S. Government Documents (Utah Regional Depository)

The purpose of Grant # DE-FG03 98ER62674, Project # 55800112 was to continue a previously funded effort and make a statistical comparison of the respective toxicities of 226Ra vs. 239Pu in dogs. Special emphasis was on the induction of bone tumors that result from the alpha-radiation emitted from either radionuclide. With the support provided, we have completed the statistical analysis of 226Ra and have established a sound basis for the analysis of the corresponding 239Pu data and for the comparison of these 2 nuclides. The analysis of the Ra project is the cornerstone for a determination of the Pu toxicity, …


Utah Stream Team Appendices, John Geiger, Nancy Mesner Jan 2000

Utah Stream Team Appendices, John Geiger, Nancy Mesner

All Archived Publications

No abstract provided.


Assessing The Risk Of Surface And Ground Water Contamination From Livestock Manure Storage & Utilization, Utah State University Extension Jan 2000

Assessing The Risk Of Surface And Ground Water Contamination From Livestock Manure Storage & Utilization, Utah State University Extension

All Archived Publications

No abstract provided.


Reducing The Risk Of Surface And Ground Water Contamination By Improving Livestock Manure Storage & Utilization, Utah State University Extension Jan 2000

Reducing The Risk Of Surface And Ground Water Contamination By Improving Livestock Manure Storage & Utilization, Utah State University Extension

All Archived Publications

No abstract provided.


Reducing The Risk Of Surface And Ground Water Contamination By Improving Livestock Yards Management, Utah State University Extension Jan 2000

Reducing The Risk Of Surface And Ground Water Contamination By Improving Livestock Yards Management, Utah State University Extension

All Archived Publications

No abstract provided.


Completing Canyonlands, Rober B. Keiter Jan 2000

Completing Canyonlands, Rober B. Keiter

Canyonlands Research Bibliography

Focuses on the proposal to follow the basin that defines the national boundaries of the Canyonlands National Park in Utah. Background of the establishment of the park; Role of the National Park Conservation Association and other environmentalist in advocating the proposal; Factors involved in the completion of the proposal.