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Ecology And Management Of Ruffed Grouse, Judith L. Landry

Aspen Bibliography

No abstract provided.

The Relationship Of Food Conversion Efficiency And Growth Potential In Juvenile Mosquitofish, Gambusia Affinis, Joseph J. Cech Jr., Michael J. Massingill, Wayne A. Wurtsbaugh

Watershed Sciences Faculty Publications

New information concerning respiratory metabolic rates of juvenile mosquitofish (i = 915 mg 02 kg-1 h-1 at 20° C) was applied to existing data on mosquitofish respiration and combined with findings on growth and food consumption rates to determine percentages of net ingested energy used for growth and respiration over a 10- 35° C temperature range. The energy percentage used by mosquitofish for respiration was minimized at 25-30° C while that used for growth (= food conversion efficiency) was maximized at the same temperature. A calculated growth potential index, derived from an overall energy balance equation, was also maximized at …

Propagation Of Quaking Aspen (Populus Tremuloides Michx.) From Root Cuttings, Karen Elizabeth Burr

Aspen Bibliography

Lateral root cuttings were collected at five quaking aspen (Populus tremuloides Michx.) clones in Larimer County, Colorado on October 2, 1977 and May 30, 1978. The October 1977 root cuttings were stored eight months in air-tight plastic bags at 0 to 4°C. On June 1, 1978 the stored (October 1977) and the fresh (May 1978) root cuttings were planted in a greenhouse propagation bench. All sprouts that developed were allowed to grow on half of the 10-cm long root cuttings randomly selected as controls. On the remaining half of the root cuttings, designated pruned, all but the tallest sprout were …

Principles Of Lake Quality Management, D. B. Porcella

Reports

No abstract provided.

Development Of Procedures To Evaluate Salinity Management Strategies In Irrigation Return Flows, V. A. Narasimhan, A. Leon Huber, J. Paul Riley, J. J. Jurinak

Reports

The salinity added irrigation return flows is a major problem in rivers draining agricultural lands throughout the arid regions of the world, and many irrigation water management alternatives have been proposed for reducing downstream salinity problems. The merits of these alternatives, however, can only be judged from reliable information on their actual effects on the salinity in rivers receiving the drainage water and the water withdrawn from the river by downstream users. Hydrosalinity models are widely used to estimate these effects to guide the selection of a policy on management of irrigation return flows. The purpose of this research was …

Alteration Of Microbial Populations In Surface Mine Revegetation And Their Effects On Nitrogen Cycling, Margaret Mary Mccarthy

Reports

Surface mining in the arid west results in soil disruption by alterning structure, water-holding capacity and nutrient availability. Intensive revegetation efforts may end in marginal rehabilitation due to adverse chamical and physical properties of the distrubed soil. Monitoring microbial activitiy and soil chemistry of revegetated and undisturbed areas of a surface mine in Southeastern Montana enabled delineation of major factors participating in soil fertility were determined. In the undisturbed site, the upper few centimeters of the soil profile contained most of the nutrients and the microbial populations. In the revegetated sites, due to mixing of various soil horizons, the concentration …

Flood Damage Mitigation In Utah, L. Douglas James, Dean T. Larson, Daniel H. Hoggan, Terrence L. Glover

Reports

Utah is subjected to flash flooding in mountain canyons, mudflows and shallow water flooding on lowlands at the canyon outlets, storm water flooding after thunderstorms in urban areas, and prolonged periods of inundation in certain lowland areas during snowmelt periods. In response to these problems, individuals are making private land use and flood proofing decisions, larger communities have storm water collection programs, three federal agencies are involved in structural flood control, and the Federal Emergency management Agency is managing a National Flood Insurance Program designed to promote community floodplain management efforts. A framework was deceloped of the dynamically interactive feedback …

Evaluation Of Mutagenicity Testing Of Extracts From Processed Oil Shale, Judith G. Dickson, V. Dean Adams

Reports

The Ames/

Utah Surface Impoundment Assessment Report, Mary L. Cleave, V. Dean Adams, Donald B. Porcella

Reports

Executive Summary: The Surface Impoundment Assessment process presented an organized consistent systme for evaluating potential threats to groundwater resources from surface impoundments of wastes. This assessment established a data base which locates wastes surface impoundments in Utah and assesses the majority of these impoundments with this prescribed system (Appendix F). This data base may be used to identify surface impoundments in Utah which may create problems with regard to groundwater contamination. Data Summary: The potential hazards of the surface impoundments assessed to groundwater is based on two values established during the assessment procedure. These values are identified as the pollution …

Feasibility Study Of Establishing A Water Rights Banking/Brokering Service In Utah, Jay M. Bagley, Kirk R. Kimball, Lee Kapaloski

Reports

Changes in water use patterns are an inevitable consequence of relentless social transformations taking place. Especially where waters have been fully appropriated, the needs of a dynamic society must be met through transfers in water ownership. Yet, there are a variety of factors that may operate as impediments to the shifting of water according to social preferences as expressed through water markets. As a mechanism for facilitating water transfers, exchagnes, or rentals, the concept of "water banking" and "water brokering" may be fruitful. This repot appraises the potential for initiating and operating such a service within the legal, institutional, and …

Evaluation Of Livestock Runoff As A Source Of Water Pollution In Northern Utah, Stephen T. Wieneke, Dennis B. George, Daniel S. Filip, Brad Finney

Reports

A mathematical model was developed to predict the impact of dairy and beef cattle feedlot runoff on receiving streams. The mathematical expressions used in the model describing runoff quantity and quality were not only a function of single rain or snow precipitation events but also consecutive events prior to the runoff occurrence. The runoff quantity and quality were also a function of feedlot surface. Computer simualtions indicate that pollutants from feedlot runoff may have a significant impact on receiving streams during winter months. Runoff from feedlots located within the study area, however, had little impact on water quality in the …

Influence Of Unsaturated Hydraulic Properties On Infiltration From Circular Surface Areas, Abdolhossien Nassehzadeh-Tabrizi, Roland W. Jeppson

Reports

The effects and interactive effects on infiltration of parameters in the Brooks-Corey equation for defining the hydraulic properties of unsaturated soils are investigated by analyzing the results of numerical solutions of the unsaturated flow characteristics resulting from water applied on a circular surface area. The soil parameters are allowed to vary continuously as a function of depth. The parameters that have been allowed to vary separately and in pairs are: (1) The pore size distribution exponent, (2) Pb- The bubbling pressure, (3) Sr- The residual saturation, (4) n- The soil porosity and (5) Ko- The saturated hydraulic conductivity. The conclusions …

General Catalog 1980-1982, Utah State University

University Catalogs

General Catalog of 1980-1982

Contains course descriptions, University college calendar, and college administration.

Valium: Its Uses And Abuses, Jeffrey A. Hardy

Undergraduate Honors Capstone Projects

Between the months of June 1978 and June 1979, I was employed at Sunshine Terrace, a nursing home in Logan, Utah. In the year I spent there working as an orderly on the wing for incontinent male patients, I was exposed to a lot of things of which I had previously been unaware.

One which I observed was the liberal use of medications. At each nuses' station there was a small room which contained about six cabinets full of prescription drugs for the forty or so patients on that wing. At least every four hours the medication nurse would prepare …

Utah Science Vol. 40 No. 4, December 1979

Utah Science

91 EXERCISE FOR DAIRY COWS Robert C. Lamb and Melvin J. Anderson The benefits in regularly exercising confined cows can be financial as well as physical.

94 TH E USU LACTIC CULTURE SYSTEM Gary H. Richardson, Gene L. Hong, and C. Anthon Ernstrom A new bacterium and procedure, both easily acquired, are revolutionizing the cheese industry.

100 TRADESCANTIA; A "SUPER-SNOOPER" OF RADIOACTIVITY FROM URANIUM MILL WASTES William F. Campbell and Eric A. Rechel A radioactively sensitive plant would have to adjust to increasing degrees of mutation and sterility if grown on uranium mill sites.

104 UTAH TURKEYS-A TEAM PRODUCTION Donald …

Changing Times: A View From Cache Valley, 1890-1915, Charles S. Peterson

Faculty Honor Lectures

For a quarter of a century I have been pursuing, in what I sometimes fear is a muddling quixotic way, the identity of Utah and of regions within it. This quest entered a new and direct phase a few years back when I was asked to write the Bicentennial History of Utah. As I toiled over the book, one of those obvious truths that now and then surface in the consciousness of each of us struck me with great force; in 1776 Utah had no practical existence whatever for Americans. Of course, the geographical region existed, but in what I …

Economic Impact Of Range Improvements On Livestock Operators, E. Bruce Godfrey

Economic Research Institute Study Papers

The topic I have been asked to address today represents a major portion of the work I have done during my professional career. It is an area where I have considerable personal interest but it also represents an area where much work has been done by others. Before I discuss the issue assigned however, I believe that a few bases must be touched to enable all of us to meet on common ground.

The Function And Cost Of Market Milk Reserves And Balanceing Supply With Demand, Rondo A. Christensen, Douglas E. Petterson, Allen H. Swainston

Economic Research Institute Study Papers

Milk marketing has changed over the years, and so have the functions performed by fluid milk handlers and dairy cooperatives. In the 1930s the typical situation was for local fluid milk processors to perform all the marketing functions starting with picking up the milk from independent dairymen at the farm, and ending with its delivery to the customer's doorstep. In most instances milk was picked up, processed and delivered daily. Each handler had to coordinate and balance his own milk supply and use. With sales about the same every day of the week, the major problem was balancing seasonal supplies …

Utah Science Vol. 40 No. 3, September 1979

Utah Science

61 CLIMATOLOGICAL OUTLOOK FOR THE COMING YEAR E. Arlo Richardson

62 HIGH SCHOOL GRADUATES: WHERE DO THEY WANT TO LIVE? Stephen Kan , Michael B. Toney and William F. Stinner Young people are favoring country life to city living; a reverse in the trend of a decade ago.

64 CAN'T DIGEST MILK? THE CULPRIT MAY BE LACTOSE! Eileen D. Cowles and Bonita W. Wyse Intestinal upset from fluid milk can be avoided without nutritional deficiencies. Alternatives are listed .

66 SMALL AND PART-TIME FARMS IN UTAH Roice H. Anderson The economic status of the small farmer is analyzed using the …

The Function And Cost Of Balancing Market Milk Supply With Demand, Rondo A. Christensen, Douglas E. Petterson, Allen H. Swainston

Economic Research Institute Study Papers

Milk marketing has changed over the years, and so have the functions performed by fluid milk handlers and dairy cooperatives. In the 1930s the typical situation was for local fluid mill processors to perform all the marketing functions starting with picking up the milk from independent dairymen at the farm, and ending with its delivery to the customer's doorstep. In most instances milk was picked up, processed and delivered daily. Each handler had to coordinate and balance his own milk supply and use. With sales about the same every day of the week, the major problem was balancing seasonal supplies …

Utah Science Vol. 40 No. 2, June 1979

Utah Science

31 ANALYZING INVESTMENT ALTERNATIVES Larry K. Bond With inflation and promises for more difficult times ahead, wise investments are of great value to a farmer's future . An extension agent offers a practical approach to buying a granary.

32 FUTURF: A NEW TURF GRASS FOR UTAH'S DIXIE William F. Campbell The climatic extremes of Utah's Dixie present an Inhospitable environment for average turfgrasses. This scientist believes he has found a grass which will flourish there.

34 THE INTERMOUNTAIN HERBARIUM Mary E. Barkworth and Leila M. Shultz The accurate Identification of a plant species can often offer vital information directly influencing …

Effects Of Oil Shale Leachate On Phytoplankton Productivity, Mary Louise Cleave

Biology

The effect of oil shale leachate and salinity additions on the productivity of freshwater algae were studied in the laboratory utilizing batch bioassays. These batch bioassays were used to screen variations of ten salts in single and multiple additions; water extractions of different processed and unprocessed oil shales; and the concentration effects of both the salts and the oil shale extractions on the productivity of standard test algae and indigenous algae from Lake Powell. The batch bottle bioassays were conducted following the standard algal assay procedure as closely as possible. Variations in the standard algal assay procedure included media variation …

Labops Hesperius Uhler: Abundance And Dispersal In Relation To Vegetation, Kenneth R. Ostlie

Biology

Labops hesperius Uhler abundance and ground dispersal in relation to vegetation were studied on three semiarid range sites in central Utah during 1977 and 1978. The objectives of this study were to: 1) verify quantitatively a common observation that L. hesperius populations reach infestation levels within reseeded range but not within native or unimproved range; 2) investigate activity levels of potential arthropod predators to determine if predation might account for the observed differences in L. hesperius abundance; and 3) examine the role which various vegetation components play in shaping this distribution of L. hesperius. Sampling with a modified "D-Vac" technique …

Evaluation Of Semen And Techniques Of Massage For Eliciting Semen From Captive Avian Species, Joseph Alan Russin

Biology

Individuals representing twelve species of birds were selected from the San Diego Zoo's avian collection to investigate optimal semen collection techniques and semen quality. Each bird was manually massaged to elicit ejaculation twice a week over a two month period. During massage, the state of cloacal excitement was evaluated by scoring the characteristics of protrusion, tissue hardness and color, and twitch, on a scale of one to five (one being the least excited state). The most successful method of massaging the bird was found to be a technique used to collect semen in domestic poultry, with slight modifications for each …

A Revision Of The Subgenus Pachynomada Of The Genus Nomada (Hymenoptera : Anthopohoridae), Ali S. Moalif

Biology

This is a revision of the subgenus Pachynomada of the genus Nomada in North America including Mexico. Diagnostic characters separating Pachynomada from other subgenera, especially the closely related sub- genus Callinomada, are discussed. Eleven species are included in the subgenus; of these four are new to science. The subgenus appears to be restricted to North and Central America. Synonymized with Nomada vincta Say is N. vincta heterochroa Cockerell as is N. aztecorum Cocketell, N. aztecorum pratensis Cocketell and N. (Holonomada) suffossa Cockerell. N. adducta Cresson and N. morrisoni Cockerell are removed from Pachynomada. The new species are Nomada (Pachynomada) dreisbachi, …

The Effect Of Photoperiod And Temperature On Testicular Growth In Captive Black-Billed Magpies, Lee R. Jones

Biology

1. Photoperiods of 12 or 15 hr duration stimulate testicular growth in captive black-billed magpies (Pica pica hudsonia) at both 2 and 20°C; 9-hr photoperiods do not initiate growth at 20°C. 2. Cold temperatures (2°C) inhibit testicular development at 12-hr photoperiods; a slight inhibition occurs at 15-hr photo-periods. The inhibitory effect of cold temperatures on testicular growth in magpies at 12-hr photoperiods is greater than in any species similarly investigated. 3. An estimate of the effect of cold temperature on vernal testicular growth in wild magpies is calculated, and the adaptive value of temperature modulation of photoperiodically induced testicular growth …

Effects Of Salinity And Drought Stress On The Rhizobium-Symbiosis And Nitrogen Fixing Ability Of Legumes, John F. Walsh

Biology

Two legume species were evaluated for their potential use as cover crops in rehabilitating arid and semi-arid saline soils. Vicia villosa and Melilotus officinalis were tested for their ability to nodulate and maintain an effective symbiosis in saline soils when soil moisture was adequate and under drought conditions. Calcium chloride and sodium chloride were added to a silt loam soil at a rate which provided soil saturation extracts with electrical conductivities (ECe) of 4, 8 and 12. For drought studies, soil water potential was measured in pots, using thermocouple psychrometers. Nitrogen fixing activity was assessed by the acetylene reduction assay. …

The Effects Of High Temperature And Low Relative Humidity On Survival Of Nondiapausing Pupae Of Bathyplectes Circulionis, Nazar Nowman Hama

Biology

The purpose of this study was to assess the impact of high temperature and low and moderate relative humidity on the survival of 1 to 3-day old nondiapausing pupae of Bathyplectes curculionis (Thomson). Temperature and time, independently and dependently, were significant factors to mortality, but relative humidity was not. No mortality was shown at 25°C and 60 to 70% relative humidity at exposures of 24 h or less. As temperatures were raised above 25°C the initially low mortality increased but in a nonlinear pattern, reaching 100% with high correlation for short exposures at 43°C or higher. At each temperature near …

Lifeforms And The Environment: A Study Of Sonoran Desert Subtrees On Bajadas, Kathryn Marie Mutz

Biology

Local and broad geographic patterns of distribution of Sonoran desert subtrees were studied on four bajadas along a southward gradient of increasing moisture. Subtrees are non-riparian desert trees, generally small in stature but having a definite trunk. Percent vegetation cover (m2 of plant canopy/10000 m2) and average size (m2 per plant) of widely distributed species were used to compare environmental favorability among sites. Percent cover of subtrees and total perennials (subtrees plus all other perennials) generally increases up bajadas and southward. Cover of shrubs is variable on bajadas. Subtree importance is most closely correlated with mean summer rainfall (r2= 0.83) …

The Progesterone And Lh Levels In Female Goats During Selected Reproductive Stages And Following Hormone Treatment, Stephanie R. Romm

Biology

Observations were made on 12 Spanish goats and 6 dairy goats from a flock in Logan, Utah, from January of 1977 to January of 1978. Estrus was detected visually and by the use of vasectomized teaser bucks. The breeding season for the majority of the goats was from September to February. Some breeding activity was observed in early March and late August. The mean estrous cycle length was 20.32 ± 7.12 days. Progesterone and LH levels were measured in 10 Spanish goats in Utah during the normal estrous cycle. Samples were taken daily through at least one cycle. LH levels …