Digital Commons Network^™

The Population Dynamics Of Tanypus Stellatus Coquillett (Diptera: Chironomidae) In Goshen Bay Of Utah Lake, Dennis Kenji Shiozawa

Theses and Dissertations

The population dynamics of Tanypus stellatus in Goshen Bay of Utah Lake was investigated from July 18, 1973, to August 5, 1974. Samples were collected from three stations with an Ekman grab and a K-B corer. The samples were washed in a 110 micron nitex screen and then floated in a sucrose solution. The K-B core was used to determine the vertical distribution of Tanypus stellatus. Ninety-six percent of the Tanypus stellatus larvae are located in the top five centimeters; 99 percent are less than ten centimeters deep. The Ekman grab was used to study the population dynamics of the …

Biology Of Northern Bald Eagles (Haliaeetus Leucocephalus Alascanus) On Amchitka Island, Alaska, Steven K. Sherrod

Theses and Dissertations

Bald Eagles on Amchitka Island, Alaska, were studied from 1969-1972. From 1970-1972 the population averaged 214.6 eagles. The average ration was 66% adults to 34% subadults. The eagles move to and from the island in relation to significant food sources (especially the garbage dump). An increase in active nests occurred from 1969-1972 due to an increase in food. The average percentage of nests containing young from 1970-1972 was 71.28%. During these three years, the average number of young known in a nest per nesting attempt was 1.24, and the average number of young known in a nest per nest containing …

Oral History Interview: James G. Matthews, James G. Matthews

0064: Marshall University Oral History Collection

James G. Matthews was a jack-of-all-trades. He worked as a coal miner for James C. Coal Company, worked for United Fuel Gas Company, the Nickel Plant, and as a mail courier. He also performed as part of a singing quartet. Mr. Matthews was born on May 30, 1902. He grew up on a farm near East Lynn, WV. After the death of his mother, Mr. Matthews attended elementary school on a part-time basis in order to work on the family farm. In the audio clip provided, Mr. Matthews discusses alcohol consumption and moonshine stills in East Lynn. During his interview, …

Eutamias Minimus And E. Amoenus: Morphological Cluster Analysis, Sandra Elaine Anderson

Dissertations and Theses

Cluster analysis of a large body of data on 180 Oregon specimens of Eutamias minimus and E. amoenus suggest that overall length of skull, basal length of skull and length of palate are taxonomically critical. If their sum is less than 71.3 millimeters the animal is E. minimus. If the sum is greater than 72.7 millimeters the animal is E. amoenus. If the sum is between 71.3 and 72.7 millimeters, other factors must be considered before the animal can be identified. Of the 180 specimens, there were 60 E. minimus, 114 E. amoenus, 2 hybrids, 2 …

Enzyme Reactions Using Ureidosuccinate As A Substrate During Pyrimidine Biosynthesis And Degradation In Cl. Oroticum, Penny Amy

Dissertations and Theses

Cells of Clostridium oroticum, an anaerobic bacterium, were grown on orotate as a carbon and energy source. Ureidosuccinase, an inducible enzyme in the pathway for pyrimidine degradation has been shown to convert ureidosuccinate to aspartate, CO₂ and NH₃ as reported by Liebenmm and Kornberg (7). Aspartate and CO₂ were formed in approximately a 1:1 ratio from ureidosuccinase activity.

Ureidosuccinase was found to be a Mn+² requiring enzyme with a pH optimum of approximately pH 6.5. Enzyme activity is labile to O₂, temperature, pH, dilution and high ionic strength. The optimum conditions for storage …

The Spatial Distribution Of The Nests Of The Black-Crowned Night Heron (Nycticorax Nycticorax) And The Snowy Egret (Leucophoyx Thula) In Central Utah, Randall S. Isham

Theses and Dissertations

Nests of the Black-crowned Night Heron and the Snowy Egret were examined in five central Utah colonies in 1973 to determine the spatial distribution within the colony. Nest locations of the 1085 nests of the two species were plotted to the nearest foot with an alidade and plane table. Tests of randomness, clump size, association, segregation, and T distribution were utilized. No differences between species were noted for the distance to the nearest and the next nearest nest. The Night Heron nested closer to other Night Herons and more often than did the Snowy Egret which non-significantly selected either species …

Circadian Rhythm In Dugesia Tigrina And Its Correlation With Regeneration, Mary Michael Brandt

Theses & Dissertations

Plant and animal rhythms have caught the attention of astute observers throughout history, but it was not until the eighteenth century that research in the area really began. Of the many rhythms we casually observe in the creatures around us, the most familiar is the daily rhythm of activity and rest. Ordinarily, the cues of daylight and darkness help to keep plants and animals synchronized with the environment. But neither honeybees, plants, nor man depend entirely upon such cues—all will show their "time sense" even when isolated from the outside world in a deep mine, cavern, or similar situation. In …

Accumulative Coliform Population In A Five-Mile Section Of The Cibolo Creek, Norman Merrill Brown

Theses & Dissertations

A study of the accumulative coliform population in a five-mile section of Cibolo Creek near Schertz, Texas.

The greatest danger associated with water is that it may recently have been contaminated by sewage or by human excrement. Therefore, the protection of public water supplies from intestinal contamination is a necessary obligation of the public health authorities. If there happens to be a break in the protective chain (adequate treatment, disinfection, and protection of water supply), a chance exposure to fecal contamination could trigger an explosive outbreak of disease within a community. Modern technology and more sophisticated bacteriological methods have made …

The Production Of Epoxysuccinic Acid By Fungi, John Dibble

Masters Theses & Specialist Projects

Seven strains of Aspergillus fumigatus and five strains of Paecilomyces varioti known to produce trans-l-epoxysuccinic acid (ESA) in a fermentation medium were compared for total acid production. It was found that A. fumigatus NRRL 2327 accumulated the greatest concentration of total acid determined by titration for soluble calcium.

Using a method of gas -liquid chromatography developed for this study, it was found that P. varioti NRRL 1123 accumulated significant quantities of ESA and succinic acid and a trace of an unidentified acid in a fermentation medium. The maximum accumulation of ESA was not reached by the 9th day of …

The Ultrastructure Of Carteria Olivieri G.S. West (Chlorophyceae: Chlamydomonadaceae), Sharon Moore

Masters Theses & Specialist Projects

Carteria olivieri West (CHLOROPHYCEAE:CHLAMYDOMONADACEAE) is a quadriflagellated unicellular green alga similar to representatives of the genus Chlamydomonas. There exists within the genus morphological variation in reference to the chloroplast, pyrenoid(s), and stigma. The purpose of this study was to investigate the ultrastructure of Carteria olivieri.

Carteria olivieri was found to be ultrastructurally similar to other species of the genus which have been investigated. Major differences include the shape of the apical papilla and the diameter and origin of the pyrenoid tubules.

Some Aspects Of The Life History Of The Southern Redbelly Dace, Chrosomus Erythrogaster Rafinesque, In Ivy Creek, Warren County, Kentucky, William Settles

Masters Theses & Specialist Projects

Various aspects of the biology of the southern redbelly dace, Chrosomus erythrogaster Rafinesgue, were intensively studied on a population in Ivy Creek, Warren County, Kentucky from 1971 to 1972. Reproduction in the southern redbellv dace occurred from May through June. Older, sexually mature individuals spawned early in the reproductive period while those in their first year of life spawned during late June. The number of eggs shed annually ranged from 140 to 681 with an average of 385. A positive correlation existed between the number of eggs shed and standard length.

Differences between the sexes of the species were marked …

Kentucky Warbler (Vol. 50, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Reproductive Status Of Alligator Juniper In Bandelier National Monument, New Mexico, Graham A. Mark

Biology ETDs

The primary object of this study was to determine the reproductive status of Juniperus deppeana Steud. In Bandelier National Monument, New Mexico. Due to the apparent scarcity of seedlings and young trees, eventual local extinction seemed likely.

Information about the population—its distributions in space and time, its fecundity and mortality rates—was gathered in the Monument. This, together with reported demographic traits of Juniperus spp., indicates that reproduction has indeed recently declined. However, due to the longevity of its members, the population could withstand at least a century of no reproduction before becoming seriously endangered.

Since reproduction has been generally poor …

Radial Distribution Of Corticular Photosynthate In Stems Of Bigtooth And Trembling Aspen, Robert K. Shepherd, Jr.

Aspen Bibliography

No abstract provided.

Absorption Of Caffeine Through Isolated Rat Small Intestine, William James Hatch

Theses and Dissertations

Intestines of fifty-six albino rats of the Holtzman strain were removed and perfused with Krebs bicarbonate buffered solutions containing caffeine. After one hour of absorbtion, caffeine was extracted from the serosal fluids in chloroform and concentrations were determined spectrophotometrically. It was found that all portions of the small intestine transported caffeine against a concentration gradient. This transport mechanism demonstrated saturation kinetics and was inhibited by ouabain. It was concluded that the movement of caffeine from the mucosa to the serosa of the small intestine cannot be the result of simple diffusion. Possible mechanisms by which the absorption of caffeine takes …

Discharge Responses Of The Nematocysts Of The Stinging Nettle Chrysaora Quinquecirrha To External Stimuli, Christa Merz Hubbard

Master's Theses

Chrysaora quinquecirrha nematocysts and isolated in suspension were systematically exposed to a wide range of chemical and mechanical stimuli to determine which ones would initiate discharge.

Nematocysts in situ were found to be highly responsive to stimuli and showed well-marked, immediate discharge when treated with acid, base and electrical stimuli. Slight discharge occurred with salt solutions, beef extract, beef extract and contact, human hair and change in temperature.

Discharge increased with the concentration of the reagent or the strength of the mechanical stimuli. A significant increase in discharge occurred in isolated nematocysts treated with HCl, acetic acid and sodium hydroxide. …

On Some Anoplocephaline Cestodes From Pikas, Ochotona Spp. (Lagomorpha), In Nepal, With The Description Of Ectopocephalium Abei Gen. Et Sp. N., Robert L. Rausch, Masashi Ohbayashi

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Three species of anoplocephaline cestodes, Anoplocephalinae gen. et sp. indet., Schizorchis cf. altaica Gvozdev, 1951, and Ectopocephalium abei gen. et sp. n., are reported from pikas, Ochotona roylei (Ogilby) and O. macrotis (Giinther), from central Nepal. The taxonomic status of Schizorchis esarsi Lovekar et al., 1972, and of Schizorchodes dipodomi Bienek and Grundmann, 1972, is discussed, with the conclusion that both species belong in the subfamily Linstowiinae, near the genus Atriotaenia Sandground, 1926. Ectopocephalium gen. n. is distinguished from other genera in the subfamily Anoplocephalinae by the modified anterior portion of the strobila, which is embedded in the tissue of …

Bats Of Margarita Island, Venezuela, With Zoogeographic Comments, James Dale Smith, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Sixteen species of bats are reported from Margarita Island, Nueva Esparta, Venezuela. These include two species of emballonurids, one noctilionid, two mormoopids, nine phyllostomatids, one vespertilionid, and one molossid. Accounts including natural history and taxonomic comments are given for each species. The chiropteran fauna of Margarita Island is compared with the bat faunas of the adjacent Venezuelan mainland and islands off the northern coast of South America, including Trinidad and other Antillean islands. It is concluded that the chiropteran fauna of Margarita Island represents an attenuated mainland fauna.

The Effect Of Diet On Neutrophilic Phagocytosis, Linda L. Hoover

Loma Linda University Electronic Theses, Dissertations & Projects

Two series of experiments were conducted in order to determine the effects of diet on neutrophilic phagocytosis. The first series was designed to determine the effects of varying amounts of oral glucose on phagocytosis. Blood samples from 6 to 8 subjects were drawn at fasting, and at various time periods following ingestion of 12.5, 25, 50, 75, and 100 grams of glucose. In the second series of experiments, blood samples were taken from 11 subjects after an overnight fast and 2 hours following ingestion of one of 4 different liquid diets, which included the following: the meal (I), consisting of …

Biological Studies On Cryptobia Atraria Sp.N. (Kinetoplastida: Cryptobiidae) In Fishes From The Sevier River Drainage, Utah, J. Stephen Cranney

Theses and Dissertations

Fish culture for both food and sport utilization has been greatly increasing throughout the world. The editor of Fish Farming Industries (1973) predicted an increase by 1977 in the United States of 83% for catfish producers, 49% for trout farmers, and 91% for bait dealers. Concomitant with the renewed interest in fish culture has been a corresponding need to further understand fish diseases.

Metabolism Of 3-Isopropyl-4h-2,1,3-Benzothiadiazin-4-(3h)-One-2,2-Dioxide (Bentazon) In Agitated And Non-Agitated Sediment, David Cortez Gutierrez

Theses and Dissertations

Bentazon, (3-isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-l-2,2-dioxide) a new experimental herbicide, was studied under the effects of sterile and non-sterile conditions, 12 hours light: 12 hours dark and totally dark conditions, and agitated and non-agitated conditions in aquatic sediment. The effects of the different levels of BOD/COD values on the decomposition of Bentazon were studied. Photoperiod, sterility, and BOD/COD levels appeared to have no influence in the breakdown of Bentazon. Agitation-time interaction appeared to be the only factor that influenced the more rapid degradation of Bentazon. Bentazon was the major 14C-residue found in the water; it was followed by an unknown. The third major metabolite …

High School Students Achievement Of College Level Work Through The Phase Achievement System (Pas), Dwight D. Lassen

Theses and Dissertations

Senior high school students in a Human Biology course were given college level work through the Phase Achievement System (PAS), a biology course at Brigham Young University (BYU). Statistical analysis showed significant growth in high school student learning through the PAS. When ability to work with PAS was measured, significant differences between the high school and college groups were not evident. A high percentage of college and high school students dropped out of the PAS, probably becasue students could fail at the PAS without experiencing academic failure.

Coastal Vegetational Communities Of The Two Texas Barrier Islands, Boca Chica And Brazos, Baltazar Cisneros

Theses and Dissertations - UTB/UTPA

Two Texas barrier islands, Boca Chica and Brazos, have unique coastal vegetational communities that may be Influenced by several environmental factors. These environmental factors include temperature, precipitation, wind speed, sunshine exposure, day length, and dune height. The purpose of this investigation was to determine the total number of coastal plant species per station, season, and year and to consider environmental factors that may significantly affect the number and pattern of coastal species. Coverage comparison between aerial and land sampling and aerial vegetational zonation was also considered.

Results indicated the presence of 21 angiosperm families and a total of 54 species. …

Tarnished And Alfalfa Plant Bugs In Alfalfa: Population Suppression With Ulv Malathion, K. P. Pruess

Department of Entomology: Faculty Publications

ULV malathion (9.7 oz AI/acre) was applied to a 16 mi² area in August 1968, 1969, and 1970 for western corn rootworm, Diabrotica virgifera LeConte, adult control. Nontarget insects in alfalfa, also treated, were monitored. Tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), was reduced 89–98%. Survival of eggs and adult migration resulted in rapid reinfestation of the treated area in 1969 and 1970; adult migration alone was important in 1968. Alfalfa plant bug, Adelphocoris lineolatus (Goeze), was reduced 96–98%. Repopulation following the 1969 and 1970 treatments was by development from eggs surviving the treatment. The 1969 treatment resulted …

The Effects Of Dilute Copper Sulphate Concentrations On Selected Aquatic Invertebrates, Michael D. Campbell

Masters Theses

No abstract provided.

Evidence Of Eutrophication In Wall Lake Barry County, Michigan, John J. Meany

Masters Theses

No abstract provided.

A Spectrographic Method For Determination Of Lead In Human Blood Utilizing The Far Ultraviolet Wavelength Region, Marianne Oriel Lull

Masters Theses

No abstract provided.

Biochemical Parameters Of Hereditary Chondrodysplasia In Mice, Trent D. Stephens

Theses and Dissertations

Cartilage from newborn mice homozygous for chondrodysplasia contains normal quantities of protein and chondroitin sulfate. Mutant fetal cartilage incorporates normal amounts of sulfate, glucose, and glucosamine. Overnight rinsing with water removes about 25% of the incorporated sulfur and existing uronic acid from mutant ribs and about 55% from mutant limbs. Control ribs and limbs are affected very little by such a rinse. The diffusability of chondroitin sulfate (represented by incorporated sulfur and uronic acid) may be due to a lack of covalent bond formation between chondroitin sulfate and collagen.

The Benthic Communities Of The Eastern Rocky Shore Areas Of Goshen Bay, Utah Lake, Thomas Whitney Toole

Theses and Dissertations

Information about the benthic macroinvertebrate populations along the eastern shore of Goshen Bay, Utah Lake, Utah, can be used, in part, to determine future management of the lake. In the project herein reported, cement artificial substrate samplers were used to sample two types of substrate: rubble and compacted calcareous tufa. Monthly samples were obtained from each type of substrate from March 1972 to May 1973. An amphipod, Hyalela azteca and a chironomid, Dicrotendipes fumidus were the dominant organisms in numbers and tiomass. Amphipod numbers were dependent upon the amount of algal standing crop. Elimination of this area could affect the …

A Taxonomic And Ecologic Study Of The Riverbottom Forest On St. Mary River, Lee Creek And Belly River In Southwest Alberta, Canada, Robert Keith Shaw

Theses and Dissertations

The riverbottom forest community of St. Mary River, Lee Creek and Belly River in southwest Alberta, Canada is a unique ecological entity characterized by poplar species having their major Alberta distribution along these streams. Stands in the community are dominated by three tree species, six shrub species and nine herb species. Establishment of the community is dependent on climate and substrate; destruction is the result of progressive lateral stream-flow erosion. Soils are sandy loams above gravel, with pH values of 7.7 to 8.0 and soluble salt concentration of 176 to 458 parts per million. Trees in mature stands averaged 23.0 …