Digital Commons Network^™

Annotated Checklist Of The Vascular Plants Of Washington County, Utah, Susan Elizabeth Meyer

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis is comprised of two parts, the annotated checklist of plants and the explanatory text which precedes it.

The checklist includes entries for the 1,207 vascular plant species known to occur in Washington county. each entry consists of species name, floristic component classification, community type occurrence, range termination information, specimen citations, and in some cases notes and relevant synonymy.

The explanatory text includes a discussion of the methods used in the preparation of the checklist, a description of the study area, a conspectus of botanical research in the area, and a summary of the systematic and phytogeographic affiliations of …

Immunological Responses In The Prairie Rattlesnake Crotalus Viridis Viridis Rafinesque 1818, To Laboratory Infection With Tetrathyridia Of Mesocestoides Corti Hoeppli 1925 (Eucestoda : Mesocestoididea), Gray Bruce Hanson

Loma Linda University Electronic Theses, Dissertations & Projects

Prairie rattlesnakes, of the species Crotalus viridis virldis, were orally, infected with tetrathyridia of Mesocestoides corti to determine the host response to the parasite. Snakes were maintained at constant temperatures of 25, 30, and 35 C for 4--24 weeks. Blood chemistry evaluations of the host were made by standard hematological methods. Eosinophil counts, total proteins, and serum gamma globulins increased while packed-cell volumes and hemoglobins decreased. Autopsy studies revealed the first documented asexual multiplication of Mesocestoides corti in a laboratory infected ectothemic host, with the small intestine being the preferred organ. Pseudocyst formation was first observed to occur at 4 …

The Use Of The Rural Grocery Store As A Food Source In Hancock County, Tennessee, Jo Annetta Schar

Masters Theses

The purpose of this study was to investigate selected environmental factors influencing food purchasers' use of the rural grocery store, the variety of food items available and the variety bought by the food shoppers. Forty-nine food purchasers were interviewed by the researcher. An interview schedule composed of questions concerning food shopping practices and a selected list of food items available in the largest Hancock County grocery store were used.

The rural grocery store in Hancock County serves many of the functions today that are reported in the literature for the early 19th century. Interviews with community leaders and examination of …

Vegetative Propagation Of Saltgrass Rhizomes, Kenneth A. Pavlicek

Biology ETDs

Saltgrass (Distichlis stricta) is a potential candidate for mine spoil-bank revegetation in New Mexico. Laboratory studies were conducted on the vegetative propagation of saltgrass from rhizomes. Optimum temperature for growth was 25 to 30 C. No clear relationship was found between the length of a rhizome section and its capacity to sprout vegetative material. In rhizome desiccation experiments, one-node segments lost water more quickly than did two-node sections. A marked reduction in rhizome sprouting was observed when moisture losses exceeded 35% of the initial fresh weight. Rhizome buds failed to demonstrate seasonal dormancy but were influenced by apical dominance. One­node …

The Chromosome Constitutions Of A Hybrid Salmonid And Its Parental Types: Salmo Gairdneri And Salmo Clarki, Peter Bruce Valentine Jacky

Dissertations and Theses

A study was undertaken to investigate the application of tissue culture and histochemical banding techniques normally used in mammalian studies to fish cells and to examine the mechanisms of chromosome evolution and speciation in salmonids by comparing the chromosomes of the hybrid to those of the parental types. The application of banding techniques was generally unsuccessful in revealing bands, though quinacrine staining did reveal the presence of two fluorescent spots in the vicinity of the centromere. These were thought to be heterochromatic blocks, possibly related to the high incidence of centric fusion or fission in salmonids. Results of chromosome analysis …

Effect Of Hemozoin (A Malarial Pigment) On ⁵¹Cr Release From ⁵¹Cr-Labeled Rbc's, John E. Heidrich

Biology ETDs

The incubation of chromium (⁵¹Cr)-labeled red blood cells (RBC) at 37° C in 5% CO₂ in the presence of hemozoin, a malarial pigment, resulted in the release of ⁵¹Cr depending upon the species of Plasmodium (rodent or simian) from which the hemozoin was prepared. Hemozoin prepared from Plasmodium berghei caused specific release of 26% of the label from RBC of Lewis rats of age 4 months or older. No significant effect was seen in younger rats since the control RBC's released 55-65% of the label spontaneously. This same hemozoin preparation caused inhibition of release of the …

The Role Of An Eyestalk Extract In The Regulation Of The Blood Sodium And Calcium Concentrations Of The Blue Crab Callinectes Sapidus, Gregory Martin Ivy

Master's Theses

The effect of bilateral eyestalk ligation or ablation on the blood Na+ and ca++ concentrations of the euryhaline blue crab, Callinectes sapidus, was measured in 10 o/oo and 5 o/oo sea water. The ablations caused a significant decrease in the blood Na+ and ca++ over a 24 hour period. The serum Na+ level increased significantly 6 hours following injections of an eyestalk extract whereas the blood total ca++ level did not change significantly. Eyestalk ligation, however, did not cause significant blood Na+ and ca++ changes. The blood Na+ level of intact crabs increased significantly in acclimating to colder water when …

The Relationship Between Gill Na+ + K+ -Activated Adenosine Triphosphatase Activity And Sodium Regulation In Acclimation Of The Blue Crab, John Lewis Harris

Master's Theses

Evidence from this study suggests that Na++K+-activated ATPase is involved in the ionic regulation of sodium in the hemo-lymph of the blue crab in low salinity environments. The time course of changes in gill Na++K+-ATPase specific activity follow- ing transfer of crabs from JO o/oo to 5 o/oo salinity indicates that a major increase in activity occurred within 2.5-3.0 hr. Apparently, a 8.8-11.1% decrease in hemolymph sodium ion concen-tration to about J55-J60 meq/1 in approximately 2-J hr was sufficient to activate the ATPase cation transport system in the gills of Callinectes sapidus. Following enzymatic activation, hemolymph sodium concentration gradually approached …

Population Dynamics And Age Determination For Five Utah Deer Herds, David L. Beall

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Ages of 213 deer killed during the 1972 hunting season were determined by: (1) eruption-replacement and wear criteria in the field: (2) employing the tooth eruption-replacement and wear criteria under optimum laboratory conditions; and by (3) cementum-annulation counts. Incisors collected for cementum-annulation counts were decalcified in 5 percent nitric acid, sections 16-18 microns were cut on a cryostat and stained in hematoxylin for 18 ± 2 minutes. Age determinations by cementum-annulation counts showed 87 percent agreement with the results obtained by eruption-replacement and wear criteria in the laboratory.

Survival rates were estimated from the age distribution of 740 teeth aged …

An Economic Analysis Of Management Alternatives For Utah Cattle Ranches And Potential Effects On Beef Production, David B. Hewlett

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The high feed grain prices of the last few years and the resulting high prices for heavy feeder cattle relative to lightweight feeder calves may provide economic incentives to market cattle from rangelands as yearlings. A majority of the economic studies investigating the profitability of retained ownership of beef calves to sell as yearlings have used a budgeting technique to compare a straight cow-yearling operation retaining all calves, to a straight cow-calf operation selling all calves. In this study linear programming was used to develop an optimum combination of various livestock marketing alternatives for maximizing net ranch income.

Two typical …

The Horse Population Of Utah And Its Impact, Scott Stewart Mckendrick

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

PART I

The horse numbers of Utah had not been accurately counted since the early 1960's. It was estimated that horse and pony numbers were reaching heights as recorded before the age of tractors and automobiles. Horsemen in Utah were asking for financial assistance for public horse facilities from the Utah legislature. The first part of this study was to survey the horse population to determine an accurate count of Utah horses.

PART II

In order to be satisfied that the horse industry deserved the spending of public funds, it was necessary to know the economic contribution of the horse …

Sensitivity Analysis Of Surface Deposition In A Numerical Model Of Atmospheric Dispersion, Jackie Lewis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Profiles of height-dependent diffusion which accommodate site-specific diffusivities were produced. A numerical model was adapted to incorporate the profiles. The model represented three-dimensional steady-state advection and diffusion of aerosols from an elevated point source. Sorption effects were simulated with surface attachment coefficients greater than unity. This proved effective in depleting the plume differentially upward from the surface.

Plant Demographic Studies Of A Desert Annuals Community In Northern Utah Dominated By Nonnative Weedy Species, David R. Duba

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Field and laboratory investigations were conducted relating to factors controlling distribution and abundance of annual species growing in a disturbed portion of the salt desert shrub zone on fine-textured soils. Dominant species on the site in the two study years were the nonnative, Halophytic, late-summer maturing, Halogeton glomeratus (Bieb.) C.A. Mey., and Bassia hyssopifolia (Pall.) Kuntze. Contrasting amounts of precipitation were received in the two years; in 1974, spring conditions were so dry that two early-maturing, sub-dominant annuals, Descurainia pinnata (walt.) Britton, and Lepidium perfoliatum L. were essentially absent. They successfully reproduced under more favorable 1975 conditions.

Studies on species …

Insect Consumption Of Seeded Rangeland Herbage In A Selected Area Of Diamond Fork Canyon, Utah County, Utah, Diane M. Bowers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study compares insect and cattle consumption of crested wheatgrass (Agropycon spp.) on a site in Sterling Ranch, Utah County, Utah. The hypothesis tested is that insect consumption in general, and specifically consumption by Labops hesperius Uhler, significantly reduces total available cattle forage.

Labops and grasshoppers were probably the major cause of secondary damage at the study site, while the impact of thrips is unknown. A detrimental impact on range was suggested by the data, as insects consumed forage equivalent to 2.8 animal units per month, while cattle consumed forage equivalent to 2.1 animal units per month at the …

A Hydrology Temperature Model For A Small Mountain Watershed, Charles Wilson Pettee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A small mountain watershed located in the Wasatch Mountains of North Central Utah is calibrated to a lumped, deterministic simulation model which is capable of predicting daily streamflow and stream temperature. The input information required is daily precipitation and maximum and minimum air temperatures.

In this study, the area of watershed modeling is reviewed in general and as it specifically applies to the study watershed.

The degree of correlation between observed data and predicted output is only mediocre. The model remains unverified for streamflow prediction and is poorly verified for stream temperature.

Productivity Of Two Utah Deer Herds As Related To Nutrition, Clarence Leon Pack

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study of mule deer occupying deer management units 53 and 54 in south central Utah was conducted from August, 1971 to May, 1974 to determine food habits, caloric requirements, dietary nutritional levels, and productivity. Transects, fecal analyses, weight data, classification counts, and forage analyses were used to accomplish these objectives.

Food habits of deer on the two units were similar, except for higher use of scrub oak on unit 53 and higher use of snowberry on unit 54.

Deer on unit 54 were significantly larger than those on unit 53. Thus, their caloric requirements also were significantly higher.

Deer …

A Computer Approach To Performing Mppa Testing, James W. Shaw

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

In the highly competitive cattle market of today a scientific method, by which a rancher can base a judgement, moderated by experience as to which animals are to be kept, as proven by superior performance, can be a valuable asset.

This record performance testing system was designed to demonstrate the value of adequately kept records. Its purpose is to help ranchers develop records of herd performance, inventory, and improve management practices by more informed decisions. The system, through its representative, provides a means by which ranchers can obtain information on new ideas in animal production, health, sanitation, nutrition, management practices, …

Histology Of Apical Tissue : A Comparative Study Of Sargenti Formula, Short Vs. Overfill, James G. Schulze

Loma Linda University Electronic Theses, Dissertations & Projects

Four Stump-tail monkeys (Macaca spiciosa) were used for this study to analyze, on a cellular level, the apical tissue of teeth overfilled versus teeth filled short 1-3 mm. of the radiographic apex with the Sargenti formula. In each animal four incisors were filled short and four incisors were overfilled. A final sample size consisted of 28 teeth. The time periods ranged from 48 hours to 120 days. After analysis of the histology it can be stated that the teeth filled short showed no inflammation to moderate inflammation in the periapical tissues. In teeth overfilled there was a range from moderate …

Food Interactions Between Utah Prairie Dogs And Cattle, Dennis Crocker-Bedford

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study examined the food interactions between Utah prairie dogs (Cynomys parvidens, Allen) and cattle (Bos taurus). During 1974 and 1975, three prairie dog colonies near Panguitch, Utah, were studied intensely: "Oldfield" was chosen to represent colonies near fields of alfalfa (Medicago sativa); "Lowercrested" was chosen to represent colonies below 2,200 meters above sea level (a.s.l.) which were not near alfalfa, and "Uppercrested" was chosen to represent colonies above 2,200 meters a.s.l. which have been planted with crested wheatgrass.

Visual observations were made of Utah prairie dogs to determine their diets. Livetrapping of prairie …

Determination Of Lead Content In Apical Tissue Following Root Canal Obturation With Sargenti's Formula, G. Merle Hickok

Loma Linda University Electronic Theses, Dissertations & Projects

Four Stump-tail monkeys were used to help determine if the lead in Sargenti's formula diffuses out into the apical tissue while confined entirely within the root canal. In each animal two teeth were filled with Sargenti's formula 1-2 millimeters short of the radiographic apex, and two teeth were filled with gutta percha and Proco-Sol sealer for controls, making a total sample size of sixteen. The time ranged from 48 hours to 120 days. Lead analysis using the spectrophotometric method showed a higher lead content in the teeth filled with Sargenti's formula than with the gutta percha controls.

Breeding Biology And Pesticide-Pcb Contamination Of Western Grebe At Bear River Migratory Bird Refuge, Mark L. Lindvall

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The breeding biology of western grebe was studied at Bear River Migratory Bird Refuge, Utah in 1973 and 1974. More than 300 nests were located and data gathered on nesting habitat and success. Western grebe at Bear River selected nest sites for nearness to open water of approximately 30 em in depth. At least one young was hatching in 21 percent of the nests. Avian predation and abandonment of nests following drops in water levels caused the greatest loss of nests. Chlorinated hydrocarbons monitored in western grebes showed DDE, DDD, PCB, 1260, and PCB 1254 levels in 24 breast muscle …

Model Studies For Molybdenum Enzymes. The Reduction Of Cytochrome C By Molybdenum(V)-Cysteine Complexes, Glen D. Lawrence

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The reduction of ferricytochrome c ( cyt c^III), as well as some iron ligand complexes and chemically modified derivatives of cyt c^III, by two molybdenum(V)-cysteine complexes has been investigated as a model for electron transfer in molybdenum enzymes. The reduction of cyt c^III by di-μ-oxo-bis [oxo(L-cysteinato)molybdate(V)] (I) is first order in cyt c^III and zero order in I over a wide range in concentration of I at neutral pH. The reduction of cyt c^III by μ-oxo-bisfoxodihydroxo(L-cysteinato) molybdate(V)] (II) is first order in both reactants and has a rate several orders of magnitude greater …

Ecological Management Of The Alfalfa Leafcutter Bee, Megachile Pacifica (Panzer), With Emphasis On Diapause Induction, Ron M. Bitner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of photoperiod and temperature on diapause induction in the alfalfa leafcutter bee, Megachile pacifica (Panzer) (=M. rotundata Auct.), were studied during the summers of 1972, 1973 and 1974, The influence of photoperiod and temperature on mortality, rate of development and incidence of diapause was measured during the developmental stages of this insect. The aim of this research was to assess the potential for manipulation of the number of generations of this bee per season so as to develop a practical and ecologically-sound method of management,

Eggs, larvae, pupae and adults of M. pacifica were subjected to regimens …

Effects Of Group, Individual, And Isolated Rearing Of Dairy Calves On Weight Gain And Social Development, Val D. Warnick

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Thirty-six dairy calves were observed for four months to determine the effect of three housing methods, group, individual and isolated on body weight gain, feed consumption, age when started to consume grain, daily activity patterns, open field test of behavior and social rank. Six calves were assigned to each of the three treatments in two separate trials of eighteen calves. These calves were raised in their treatment for approximately two months and then weaned and placed together in a group of eighteen for two more months.

Treatments ranked in order from high to low according to least squares means for …

Evaluation Of The Nutritional Needs Of The Elderly Residents In Southwestern Utah, Sharon Fisher

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Biochemical composition of blood and urine and estimated nutrient intake were used to evaluate the nutritional status of 187 fasting, ambulatory elderly residents of five southwestern Utah communities in the spring of 1975. Nutritional assessments included 17 biochemical and 23 dietary parameters. Measurements were also taken of height, weight, and blood pressure.

Mean energy intakes were lower than the RDA for both men and women (1965 ± 527 Kcal and 1513 ± 371 Kcal, respectively), although a majority of the participants were above ideal weight. Cholesterol values above 250 mg/lOO ml of blood were found in 38 percent of the …

Host And Habitat Preferences, Life History, Pathogenicity And Population Regulation In Species Of Protocalliphora Hough (Diptera: Calliphoridae), Terry Lee Whitworth

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The host, habitat preferences, and life histories of species of Protocalliphora were investigated in northern Utah. The effect of species of Protocalliphora on blood levels (hematocrit and hemoglobin) and weight gains of nestling birds also was studied.

A total of 1,819 bird nests were examined, representing 68 bird species from 10 habitats. Forty-eight percent (869) of the nests of 51 bird species found were infested. Eighteen species of Protocalliphora, including 11 undescribed, were collected.

Birds experiencing a high rate of infestation included most colonial nesters (such as bank swallows and yellow-headed blackbirds), cavity nesters (such as starlings and tree swallows, …

Multiple Hemoglobins In Rainbow Trout, Salmo Gairdneri, And Cutthroat Trout, Salmo Clarkii, Jeffrey Carl Braman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nine hemoglobins from adult rainbow trout have been isolated by starch gel electrophoresis using a Trisborate buffer system, pH 8.7. Six fast and two slow anodally migrating hemoglobins, and one slow cathodally migrating hemoglobin were observed in all specimens.

The nine hemoglobins have been purified by DEAE cellulose ion exchange chromatography followed by starch gel electrophoresis.

The subunit structure of each purified hemoglobin has been partially examined by gel electrofocusing (GEF) in .5 percent polyacrylamide gels containing 8M urea and lmM dithiothereitol (DTT). Tetrameric combinations of one, two, three, and four polypeptide chains are present.

Twelve hemoglobins have been isolated …

Quantitation Of Aliphatic Aldehydes In Rancid Turkey Meat Using A Substituted Hydrazone, Stanley J. Andrews

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many objective chemical tests have attempted to correlate with organoleptic evaluation of oxidative rancidity. Major chemical tests used to detect oxidative rancidity of lipids measure nonvolatile high molecular weight carbonylic substances which make no considerable contribution to rancid flavors. High molecular weight carbonyls are present at much greater concentrations than volatile low molecular weight carbonyls. Peroxides and other unknown substances also react in these chemical tests to give at best an empirical evaluation. A 3-methyl-2-benzothiazolinone hydrazone chemical test is proposed which corrected some deficiencies of earlier procedures, and was correlated with organoleptic evaluation of rancid turkey samples. The proposed test …

Some Effects Of Mechanical Deboning On The Composition And The Bioavailability Of Protein And Iron In Turkey Frame Meat, Lowell C. Allred

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Meat was obtained from a single daily lot of turkey frames by mechanically deboning with a Beehive AU 4171 deboner and by hand deboning. The meat was analyzed for protein, fat, moisture, ash, iron, calcium, and 19 amino acids. Mechanically deboned turkey had 68 percent more ash, 74 percent more iron, and nine times more calcium than the hand deboned turkey meat. Other constituents were about equal in the two products. Protein bioavailability tests, including protein efficiency ratio, biological value, net protein utilization, and nitrogen efficiency for growth, did not reveal significant differences between mechanically deboned and hand deboned turkey. …

A Longitudinal Study, Part Iii: The Relationship Of Weight, Health Status, Diet And Anxiety To Serum Cholesterol Levels In Adults, Kristine S. Saunders

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Over an 18-year period, beginning in 1955, a group of subjects has been studied six times to determine if any relationship exists among serum cholesterol levels, body weight, health status, diet quality and stress or anxiety. For the first four test periods, extending through ages 7 to 16 years, there were 321 subjects. Later, in 1968, 86 of the original 321 subjects, now aged 19-22 years, were able to participate in a follow-up study. The 1974 study was able to involve 30 of the original 321 subjects now aged 26-29 years. Findings show that from approximately the fifteenth year onward …