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Articles 10681 - 10710 of 10956
Full-Text Articles in Entire DC Network
End Matter, Vol. 9 No. 3
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
D Elden Beck (1906–1967), Vasco M. Tanner
D Elden Beck (1906–1967), Vasco M. Tanner
Great Basin Naturalist
No abstract provided.
Front Matter, Vol. 9 No. 2
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 9 No. 2
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Birds Of The Upper Colorado River Basin, C. Lynn Hayward
Birds Of The Upper Colorado River Basin, C. Lynn Hayward
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
New Records And Species Of Neotropical Bark Beetles (Scolytidae: Coleoptera), Stephen L. Wood
New Records And Species Of Neotropical Bark Beetles (Scolytidae: Coleoptera), Stephen L. Wood
Great Basin Naturalist
No abstract provided.
Hematological Variation Associated With Altitude, Season, Sexual Activity And Body In The Uinta Ground Squirrel, Ralph Theodore Kinchloe
Hematological Variation Associated With Altitude, Season, Sexual Activity And Body In The Uinta Ground Squirrel, Ralph Theodore Kinchloe
Theses and Dissertations
Hematological comparisons were made on the Uinta ground squirrel (Citellus armatus) trapped at different altitudes and during vari ou s stages of seasonal activity in 1965 and 1966. Hematological variation due to sex, sexual activity and body weight were also analyzed. Ground squirrels were secured from the Mt. Timpanogos area near Provo, Utah County, Utah. Erythrocyte count, hematocrit, total blood hemoglobin, mean erythrocyte volume, mean erythrocyte hemoglobin and reticulocyte counts were measured using standard procedures; banding patterns of hemoglobin and serum proteins wer e determined by means of electrophoresis with polyacetate strips.
The Status Of The Common Crow Corvus Brachyrhynchos Brehm In The Great Basin, Gerald Low Richards
The Status Of The Common Crow Corvus Brachyrhynchos Brehm In The Great Basin, Gerald Low Richards
Theses and Dissertations
Due to a lack of taxonomic and distributional information concerning the Common Crow Corvus brachryhynchos Brehm inhabiting the Great Basin of North America, Johnston (1961) in one of the most recent revisions on crows, was unable to include this area in his work. Between 1965 and 1967, field trips were taken throughout the Great Basin to secure specims, and to determine to what extent the area was being utilized by crows. Ecological information such as habitat prference, nesting behavior, and interactions with other species was collected where possible. Forty-eight birds were collected from the Great Basin. From a comparison of …
An Electrophoretic And Chromatographic Study Of The Hemoglobin From Adult And Fetal Pigs, Donald William Green
An Electrophoretic And Chromatographic Study Of The Hemoglobin From Adult And Fetal Pigs, Donald William Green
Theses and Dissertations
Hemoglobin, from the erythrocytes of adult and fetal pigs, was isolated and analyzed by carboxymethylcellulose column chromatography and electrophoresis on polyacetate. These techniques demonstrate the existence of four fetal components (F0, F1A, F1B, F1C) and two adult components (A0, A1) based on their elution pH values and electrophoretic mobilities. The shift from-fetal to adult forms is initiated sometime between eight weeks after birth and one year. The change is not completed until sometime after one year and the major fetal forms (F0, F1A) maintain a 15% level in a mature adult. This report is in contrast with the results of …
An Ecological Study Of The Algae And Mosses Of Cascade Springs, Wasatch County, Utah, Deanna Lynn Mccoard
An Ecological Study Of The Algae And Mosses Of Cascade Springs, Wasatch County, Utah, Deanna Lynn Mccoard
Theses and Dissertations
An ecological study was conducted at Cascade Springs, Wasatch county, Utah from August 1965, to June 1967. The algae and aquatic moss species were determined and ecological information about these organisms was obtained. Physical data were also collected: bicarbonates, carbonates, free carbon dioxide, hydroxides, oxygen, pH, and temperature. The physical environment of the water was found to be very constant. Tests taken at the different study sites were consistently similar, not only during each day, but all year around. No great variation of any kind was found in the water. In contrast to the water environment, the topography of the …
Predation Of Leptothrips Mali (Fitch) On Mites In Central Utah Orchards, James G. Brooks
Predation Of Leptothrips Mali (Fitch) On Mites In Central Utah Orchards, James G. Brooks
Theses and Dissertations
Predation by thrips was referred to as early as 1882 when Pergande discussed their habits. Later, Plank (1936) found Leptothrips mali (Fitch) to be predaceous on lepidopterous eggs, and Sharp (1938) cited it as a being a predator of the pecan nut caseborer, Acrobasis caryae Grote. Bailey (1939) stated that the six-spotted thrip, Scolothrips sexmaculatus (Pergande), is predaceous on Tetranychus telarius (L.), Tetranychus pacificus McG., Bryobia praetiosa Koch, Paratetranychus citri McG., Paratetranychus pilosus (C & F.), Paratetranychus indicus Hirst, Paratetranychus yothersi (McG.), Paratetranychus ilicis (McG.), and Phyllocoptes oleivorus Aschm. and in 1943 Bailey and Keifer noted that L. mali fed …
Investigation Of Nitrogen Fixation By Three Species Of Lichen, Dortha Maloy Robinson
Investigation Of Nitrogen Fixation By Three Species Of Lichen, Dortha Maloy Robinson
Theses and Dissertations
One species of lichen from each of three different families (Collema wyomingensis , Caloplaca elegans (Link)T. Fries, and Parmelia molliuscula Ach.) was studied to determine whether or not these lichens can fix atmospheric nitrogen. Samples of these three lichens were collected in the early spring of 1967. Samples of each species were placed in 20-ml glass tubes which contained 5 ml of glass wool saturated with 0.5 M nitrogen-free Hoaglands nutrient solution. These tubes were sealed by heat onto a gas manifold system and evacuated. An N15- enriched atmosphere (22 atoms % N15) was introduced into the tubes from the …
End Matter, Vol. 9 No. 1
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Male Sphaeropthalmine Mutillid Wasps Of The Nevada Test Site, William E. Ferguson
Male Sphaeropthalmine Mutillid Wasps Of The Nevada Test Site, William E. Ferguson
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Front Matter, Vol. 9 No. 1
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Front Matter, Vol. 8 No. 4
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
Bibliography Of Utah Botany And Wildland Conservation, Earl M. Christensen
Bibliography Of Utah Botany And Wildland Conservation, Earl M. Christensen
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 8 No. 4
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
The Ecology Of The Western Spotted Frog, Rana Pretiosa Pretiosa, Baird And Girard: A Life History Study, Ronald Ladell Morris
The Ecology Of The Western Spotted Frog, Rana Pretiosa Pretiosa, Baird And Girard: A Life History Study, Ronald Ladell Morris
Theses and Dissertations
Observations and collections on the breeding biology and life history of Rana pretiosa pretiosa Baird and Girard have been made in central Utah from 1962 to 1967. The frogs' activities were followed from their spring emergence untril the tadpoles metamorphosed and hibernated in the fall. Collections and observations were made at regular intervals through the entire period of summer activity. Data were gathered at the ponds and samples of the life history stages were taken to the laboratory where they were analyzed and studied. Emergence is normally during the middle of March. The males precede the larger females by three …
Ticks Of The Genus Haemaphysalis In The Western United States, Joe M. Merino
Ticks Of The Genus Haemaphysalis In The Western United States, Joe M. Merino
Theses and Dissertations
Two species of Haemaphysalis occurring in the western United States were studied with respect to geographical distribution, seasonal occurrence, host-parasite association and external anatomy and morphology. H. leporispalustris is widely distributed in the west. Abundant records for some states are lacking and should be provided to extend the knowledge of this tick's distribution.
Aquatic Phycomycetes Of Lily Lake, Hugh Macmillan Rooney
Aquatic Phycomycetes Of Lily Lake, Hugh Macmillan Rooney
Theses and Dissertations
Lily Lake, a subalpine lake in the Wasatch National Forest Tl5, R9E, S31, of the Uinta Mountain Region, Utah, is located about one-half mile west of Trial Lake at an elevation of 10,000 feet. This Lake, which is one of the acidic, cold, lentic bogs characteristic of this area, has been selected for a taxonomic and seasonal distribution study of acquatic phycomycetes. This study is a beginning to our knowledge of the role of the fungi in the hydrobiology of Lily Lake and will supply the first information on record of the water molds of this area. The study identifies …
A Study Of The Golden-Mantled Ground Squirrel (Citellus Lateralis) In A Sagebrush-Grass Community, Dennis E. Peterson
A Study Of The Golden-Mantled Ground Squirrel (Citellus Lateralis) In A Sagebrush-Grass Community, Dennis E. Peterson
Theses and Dissertations
Golden-mantled ground squirrels (Citellus lateralis Say) typically inhabit coniferous forest regions, but they occasionally occur in desert shrub habitats. The principal purpose of this study was to observe activities of mantled squirrels in a sagebrush community, and to ascertain factors which contribute to their success in an unusually arid habitat. Squirrels of this community belong to the subspecies C. l. lateralis; however, intergradation between typical C. l. lateralis and C. l. castanurus is evident. This community is in the Wasatch Mountains at an elevation of 5,750 feet, and in the Upper Sonoran Zone. These three conditions were not previously recorded …
Investigations Into The Spawning Ecology Of The White Bass Roccus Chrysops, (Rafinesque) In Utah Lake, Utah, Frédérick Vinvent
Investigations Into The Spawning Ecology Of The White Bass Roccus Chrysops, (Rafinesque) In Utah Lake, Utah, Frédérick Vinvent
Theses and Dissertations
Utah Lake, located in Utah County, north-central Utah, is one of the most important natural fishing lakes in the state. The spawning ecology of the white bass (Roccus chrysops) was studied in Utah Lake between 1964 and 1966. Gill nets and seining were the primary means of sampling. The spawning location was sampled every other day throughout the spring and early summer of 1966. Three major winter schooling areas were found: Provo Bay - Creer Access south to the mouth of Spanish Fork River, Lincoln Beach, and off Ludlow Barn. There appears to be extensive winter feeding and movement among …
Problems Of Sampling Desert Arthropods Before And After A Thermonuclear Cratering Test, Clayton S. Gist
Problems Of Sampling Desert Arthropods Before And After A Thermonuclear Cratering Test, Clayton S. Gist
Great Basin Naturalist
No abstract provided.
The Relationship Between The Religious Attitudes And Religious Activity Of Students And The Priesthood And Activity Status Of The Fathers, Robert Moroni Dunford
The Relationship Between The Religious Attitudes And Religious Activity Of Students And The Priesthood And Activity Status Of The Fathers, Robert Moroni Dunford
Theses and Dissertations
The purpose of this study was to test the follow null hypotheses:
1. There are no differences between boys and girls in religious attitudes and religious activity.
2. There are no differences in students' religious attitudes related to the priesthood and religious activity status of the fathers.
3. There are no differences in students' religious activity related to the priesthood and religious activity status of the fathers.
4. There is no relationship between a student's religious attitudes and his religious activity.
A religious attitude index was obtained for each student from a summated rating of students' responses to a Likert-type …