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- Ground squirrels; Citellus armatus; Zoology (2)
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Articles 1 - 18 of 18
Full-Text Articles in Life Sciences
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.
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.
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 …
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.
Changes In Hemoglobin During Metamorphosis Of The Salamander, Harvey Dee Mecham
Changes In Hemoglobin During Metamorphosis Of The Salamander, Harvey Dee Mecham
Theses and Dissertations
Analysis of hemogobins were conducted on animals of the species Ambystoma tigrinum. Separation of hemoglobin types was performed with a Carboxy-methyl-cellulose column (6 X 50 mm.) and pH gradient (pH 6 thru 8) of .01 M phosphate buffer. The hemoglobins in the effluent were detected and analysed with a micro-flow cell in a Beck-man DB-G spectrophotometer attached to a Photovolt Varicord 43 recorder. Two major components of hemoglobin were observed: larval and adult. These two components varied in concentration with the stage of development of the individual. In addition, it was noted that minor peaks ansd shoulders appeared on each …
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 …
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.
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.
Front Matter, Vol. 8 No. 4
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.
End Matter, Vol. 8 No. 4
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
End Matter, Vol. 9 No. 1
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 …
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 …
Life History And Ecology Of The Colorado Chipmunk (Eutamias Quadrivittatus Hopiensis), Carl Eugene Wadsworth
Life History And Ecology Of The Colorado Chipmunk (Eutamias Quadrivittatus Hopiensis), Carl Eugene Wadsworth
Theses and Dissertations
Observations of reproductive behavior, growth and development of the young, food habits, habitat preference, and daily and seasonal activity patterns of the Colorado chipmunk are presented for the first time. The breeding cycle is as follows: mating occurs in late February or early March; the young are born in early to mid-April and first appear above ground in May, but do not reach breeding age until the following spring. There is only one litter of young per year. The mean number per litter was 5.7 for three litters born in captivity. The sex ratio of the animals born in captivity …
Physiological Variations In The Uinta Ground Squirrel (Citellus Armatus) In Relation To Seasonal Activity And Altitude, Marden Reed Kohler
Physiological Variations In The Uinta Ground Squirrel (Citellus Armatus) In Relation To Seasonal Activity And Altitude, Marden Reed Kohler
Theses and Dissertations
The purpose of this investigation was to study the weight changes of selected internal organs to determine possible physiological variation occurring at six different altitudes ranging from 5,800 to 8,500 feetand during the summer season. This report was limited to the study of changes in the adrenal glands, kidneys, testes, heart and intestines. Electrocardiogram, heart and respiration rates were investigated also. These changes were statistically analyzed to determine possible seasonal differences along with any significant changes occurring at different elevations. The results of the study should in part overcome the lack of current experimental data for Citellus armatus.