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The Role Of Brown Bears (Ursus Arctos) In Nutrient Transport Into Forests Near A Salmon Stream In Coastal British Columbia, Canada, Arthur Morris

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nutrients from spawned salmon contribute to the fertility of rivers and riparian areas. Adjacent forests, even far from rivers, could receive substantial amounts of nitrogen and other nutrients from salmon. Since brown bears feed heavily on spawning salmon, bears probably influence the movement of nutrients from salmon into surrounding forests. Because salmon-derived nitrogen is high in ¹⁵N, increased isotopic enrichment is expected in forest soils and vegetation if this transport is occurring. Based on relative ¹⁵N enrichment of spawning areas, a quantitative estimate of marine-derived nitrogen (MDN) can be obtained using a linear two-source mixing model. To evaluate …

The Role Of The Arabidopsis Phosphatidylinositol 3-Kinase In Vacuolar Protein Transport, Christopher A. Jones

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In all eukaryotic organisms vesicle-mediated protein transport is crucial for maintaining cellular homeostasis. Over the past decade significant strides have been made in elucidating the molecular mechanisms governing this complex process. Both genetic and biochemical studies have demonstrated the unequivocal involvement of class III phospatidylinositol 3-kinases (PtdIns 3-kinases) in regulating vesicle transport. While PtdIns 3-kinases have been well studied in both yeast and mammalian systems, the role of these enzymes in plants is poorly understood. In the present study, we demonstrate that the Arabidopsis Ptdlns 3-kinase is localized to the cytoplasm, and perhaps the Golgi apparatus. Moreover, we show that …

The Development Of A Bluetongue Virus Diagnostic Assay Using Peptides Derived From The Structural Protein Vp7 And Nonstructural Protein Ns2, Yi Lu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Several peptides derived from viral proteins, VP7 and NS2 of bluetongue virus (BTV), were synthesized for an immunologic detection assay: distinguishing between bluetongue virus infected, vaccinated, and noninfected animals (ruminants) with dot blot analysis. The School of Veterinary Medicine, University of California, Davis, supplied the serum samples from 24 bovine, 18 caprine, 23 ovine. Another 205 bison serum samples were obtained in Utah. The serum samples of BTV-infected animals revealed detectable antibodies to both VP7 and NS2 peptides, whereas vaccinated animals only exhibited antibodies against VP7. Noninfected animals did not display antibody against either viral peptide. These data confirmed the …

Movement Patterns Of Phrynosoma Mcallii And Phrynosoma Platyrhinos In Response To Substrate Texture, Daniel H. Foley Iii

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During the summers of 1999 and 2000 the apparent habitat partitioning of two species of sympatric horned lizards was investigated at the Barry M. Goldwater Bombing Range near Yuma, Arizona. The flat-tailed horned lizard, Phrynosoma mcallii, and the desert horned lizard, P. platyrhinos, overlap in range in portions of the Sonora desert in the southwestern United States. However, upon finer scale examination, it appeared that these horned lizards were partitioning the available habitat according to soil substrate texture. Phrynosoma mcallii appeared to be exclusively found in areas of fine, loose, wind-blown sands, in contrast to P. platyrhinos, …

The Effect Of Hydration On Stratification Efficiency Of Peach And Apple Seeds, Bryan E. Dayton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Manipulating bud dormancy in temperate fruit trees could reduce fruit loss due to early spring frosts. The relationship between moisture content and dormancy could provide a tool to better understand and ultimately manipulate the biochemical process of bud dormancy. Seeds have historically been used in research studies to predict bud dormancy because they have similar dormancy requirements and are easier to use. This study was conducted to quantify the relationship between seed water content and stratification efficiency for dormancy release. Seeds of peach, Prunus persica cv. 'Johnson Elberta,' and apple, Malus domestica cv. 'Golden Delicious,' were hydrated in vitro to …

Adoption Of Range Management Innovations By Utah Livestock Producers, Elizabeth Anne Didier

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Recent years have seen changes in ecological conditions, ownership patterns, and political-legal forces that affect the sustainability of Western range livestock production. Enterprise diversification and implementation of improvements are advocated as ways for ranchers to cope with marginal returns from ranching while better managing resources. However, relatively few ranchers make such substantive changes in their operations, and previous research suggests that rates of adoption may be especially low in Utah.

Using a qualitative approach, this study explored innovation adoption among Utah ranchers. During preliminary interviews with 13 key informants, commitment to traditional ranching lifestyles, the state's settlement pattern, and availability …

Prehistoric Uinta Mountain Occupations, U.S. Forest Service, Clay Johnson, Byron Loosle

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

Examines a number of sites revealing how people from a particular period utilized different uplands resources, elevation, and settings as they made the transition to a more sedentary life-way. These Uinta Mountains sites represent hitherto little know portions of regional settlement and subsistence patterns, and complement the more extensive published research on lowland occupations

Comparative Analysis Of Pollution In Farmington Bay And The Great Salt Lake, Utah, Wayne A. Wurtsbaugh, Amy M. Marcarelli, Cameron Christison, Joel Moore, Donovan Gross, Sophia Bates, Sara Kircher

Watershed Sciences Faculty Publications

Farmington Bay covers 94 mi2 (260 km2) in the SW comer of the Great Salt Lake, and is essentially a separate lake because it is enclosed by Antelope Island and a causeway leading to the island from the mainland. The bay has received wastes from the adjoining Salt Lake City metropolitan area for decades. Because of water quality concerns for Farmington 8ay, the Aquatic Ecology Laboratory class at Utah State University studied the bay and a nearby control site (Bridger Bay) in the Great Salt Lake during the fall of 2001. Field sampling and laboratory experiments, as well as other …

Sheep Research Poster, Utah State University

Research

This is a photo of Utah State University student, Stephanie Eng presenting her research on parasites found in sheep for Posters on the Hill at the Utah state Capitol.

Nitrogen Budgets For Your Dairy, Allen Young

All Archived Publications

No abstract provided.

Formaldehyde, Leona K. Hawks, Andria B. Hansen

All Archived Publications

No abstract provided.

How To Purchase A Healthy Home, Leona K. Hawks, Andria B. Hansen

All Archived Publications

No abstract provided.

Property Rights And The Management Of Multiple Use Fisheries, Keith R. Criddle

Economic Research Institute Study Papers

Arguments in favor of adopting rights-based management strategies have been developed primarily in the context of commercial fisheries and have focused on increasing the profitability of catcher vessel operations and reducing the incentive to deplete fish stocks. Relatively little attention has been given to the effects that alternative management regimes could have on the profitability of processing and support service businesses, consumer surplus, or to the interface between commercial fishing, sport fishing, and other use and nonuse demands for fishery resources. Although there is often congruence among users with respect to stock management and rule enforcement objectives, other objectives are …

Sprinklers, Crop Water Use, And Irrigation Time: San Juan County, Robert W. Hill, James D. Keyes

All Archived Publications

No abstract provided.

My Cherry Tree Is Covered With Small Black Bugs; What Should I Do?, Mike Reding

All Archived Publications

No abstract provided.

Sprinklers, Crop Water Use, And Irrigation Time: Rich County, Robert W. Hill, Scott Williams

All Archived Publications

No abstract provided.

Sprinklers, Crop Water Use, And Irrigation Time: Washington County, Robert W. Hill, Vernon Parent

All Archived Publications

No abstract provided.

Sprinklers, Crop Water Use, And Irrigation Time: Uintah And Daggett County, Robert W. Hill, Boyd Kitchen

All Archived Publications

No abstract provided.

Sprinklers, Crop Water Use, And Irrigation Time: Utah County, Robert W. Hill, Dean Miner, Adrian Hinton

All Archived Publications

No abstract provided.

Sprinklers, Crop Water Use, And Irrigation Time: Sanpete County, Robert W. Hill, Craig Poulson

All Archived Publications

No abstract provided.

Sprinklers, Crop Water Use, And Irrigation Time: Sevier County, Robert W. Hill, David R. Drake

All Archived Publications

No abstract provided.

Drought Response - Agriculture Water Management Alternatives, Robert W. Hill, E. Bruce Godfrey

All Archived Publications

No abstract provided.

Development And Validation Of Spatially Explicit Habitat Models For Cavity-Nesting Birds In Fishlake National Forest, Utah, Randall J. Schultz, Jr., Thomas C. Edwards, Jr., Gretchen G. Molsen, Tracey S. Frescino

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

The ability of USDA Forest Service Forest Inventory and analysis (FIA) generated spatial products to increase the predictive accuracy of spatially explicit, macroscale habitat models was examined for nest-site selection by cavity-nesting birds in Fishlake National Forest, Utah. One FIA-derived variable (percent basal area of aspen trees) was significant in the habitat model; however, the incorporation of FIA stand structure information did not increase model accuracy. Cavity-nesting birds respond strongly to nest-tree attributes unable to be modeled spatially for this study. Future modeling efforts should focus on larger taxa (e.g., ungulates) and richness/diversity studies.

The Roswell And Carlsbad Bureau Of Land Management Field Offices And Lincoln National Forest Endangered, Threatened And Sensitive Plant Field Guide, United States Bureau Of Land Management

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

This field guide has been prepared through a combined effort of the Roswell and Carlsbad Field Offices of the Bureau of Land Management (BLM), the Lincoln National Forest (LNF), and Ecosphere Environmental Services. This guide will help agency field personnel and public land users identify special status species found in the Roswell, Carlsbad, and Lincoln National Forest management areas.

Final General Management Plan/Environmental Impact Statement (Visitor Management And Resource Protection Plan) Zion National Park, Utah, U.S. Department Of The Interior, National Park Service

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

The purpose of this conceptual plan is to describe the general path the National Park Service intends to follow in managing Zion National Park over the next 20 years. The approved plan will provide a framework for proactive decision making on such issues as visitor use, natural and cultural resource management, and park development, which will allow park managers to effectively address future problems and opportunities. In most cases, new development outside the park would take place to meet visitor needs.

Ethylene Synthesis And Sensitivity In Crop Plants, Stephen P. Klassen, Bruce Bugbee

NASA

Closed and semi-closed plant growth chambers have long been used in studies of plant and crop physiology. These studies include the measurement of photosynthesis and transpiration via photosynthetic gas exchange. Unfortunately, other gaseous products of plant metabolism can accumulate in these chambers and cause artifacts in the measurements. The most important of these gaseous by products is the plant hormone ethylene (C2H4). In spite of hundreds of manuscripts on ethylene, we still have a limited understanding of the synthesis rates throughout the plant life cycle. We also have a poor understanding of the sensitivity of intact, rapidly growing plants to …

The Educational Pipelinie For Women In Biology: No Longer Leaking?, Louise Luckenbill-Edds

ADVANCE Library Collection

Describing the past 30 years of progress toward gender equity in science, one observer wrote: "Although optimistic about future prospects, I must also point out some daunting toads and serpents lurking in the gardens of science. These challenge the rising generation of young scientists to be no less intrepid [that past activists who catalyzed change]" (Herschbach 1999, p. 66). The failure of the sciences to attract and retain women has meant a loss of diversity, as well as a loss of talent and creativity, that impoverishes research viewpoints and limits effective communication of science with diverse sectors of society.

Environmental Assessment : Middle Salt Creek Canyon Access Plan Canyonlands National Park, Utah, National Park Service, U.S. Department Of The Interior, Canyonlands National Park

Canyonlands Research Bibliography

Salt Creek is the largest drainage in the Needles district of Canyonlands National Park. The creek supports one of the most important riparian ecosystems in the park. It is also the heart of the Salt Creek National Register Archeological District, the area with the highest recorded density of archeological sites in the park. A tributary canyon contains the spectacular Angel Arch, a well-known geologic formation that for many years has been a destination point for park visitors. In 1998 the U.S. District Court for the State of Utah ruled, in a lawsuit filed by the Southern Utah Wilderness Alliance, that …

Biological Soil Crusts : Webs Of Life In The Desert, Jayne Belnap

Canyonlands Research Bibliography

No abstract provided.

Safeguarding Species, Languages, And Cultures In The Time Of Diversity Loss: From The Colorado Plateau To Global Hotspots, Gary Paul Nabhan, Patrick Pynes, Tony Joe

Canyonlands Research Bibliography

Hotspots of biodiversity have become priority areas for land conservation initiatives, oftentimes without recognition that these areas are hotspots of cultural diversity as well. Using the Colorado Plateau ecoregion as a case study, this inquiry (1) outlines the broad geographic patterns of biological diversity and ethnolinguistic diversity within this ecoregion; (2) discusses why these two kinds of diversity are often influenced by the same geographic and historic factors; and (3) suggests what can be done to integrate traditional ecological knowledge of indigenous peoples into multicultural conservation collaborations.