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Life Sciences Commons

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1973

Utah

Theses and Dissertations

Discipline

Articles 1 - 6 of 6

Full-Text Articles in Life Sciences

Helminth Parasites Of Dogs In Two Central Utah Communities, Lari Michael Norton Cowgill Aug 1973

Helminth Parasites Of Dogs In Two Central Utah Communities, Lari Michael Norton Cowgill

Theses and Dissertations

Parasitic helminths probably consitute one of the most important groups of disease agents in dogs. In the Southern and Central United States dogs are often fatally infected with the canine esophageal worm, Spirocerca lupi, and the ca nine heartworm, Dirofilaria immitis. Cestodes which can limit the growth of a dog are found throughout the United States.


Life History And Ecology Of The Great Basin Sagebrush Swift, Sceloporus Graciosus Graciosus Baird And Girard, 1852, Gary L. Burkholder Aug 1973

Life History And Ecology Of The Great Basin Sagebrush Swift, Sceloporus Graciosus Graciosus Baird And Girard, 1852, Gary L. Burkholder

Theses and Dissertations

The sagebrush swift, Sceloporus graciosus graciosus, is abundant in the transitional zone of the Great Basin. As an intermediate link the the food chain, sagebrush swifts are preyed upon by snakes and hawks, and in turn are predators of small arthropods.


Reproductive Life History Of Catostomus Ardens And Catostomus Discobolus In The Weber River, Utah, James K. Andreasen Aug 1973

Reproductive Life History Of Catostomus Ardens And Catostomus Discobolus In The Weber River, Utah, James K. Andreasen

Theses and Dissertations

Fish of the family Catostomidae, consisting of 11 genera and about 57 species, comprise a significant part of the fish fauna of Western North America. Life history information of some species is available (Bailey, 1969, and Brown and Graham, 1953, Catostomus catostomus; Dence, 1948, .f. commersoni; Douglas, 1952, Xyrauchen texanus; Geen et al., 1966, C. catostomus and C. coI!Dllersoni; Greenfield et al., 1970, .f. santannae; Harris, 1962, C. catostomus; Hauser, 1969,C. platyrhynchus; MacPhee, 1960, .f. macrocheilus; Nelson, 1968, .f.cotmnersoni and C. macrocheilus; Raney and Webster, 1942, C. commersoni; Smith, 1966, entire subgenus Pantosteus; Spoor, 1938, C. commersoni; Willsrud, 1966, C. …


Three New Species Of Petrified Dicotyledonous Wood From The Lower Cretaceous Cedar Mountain Formation Of Utah, Gregory F. Thayn Jul 1973

Three New Species Of Petrified Dicotyledonous Wood From The Lower Cretaceous Cedar Mountain Formation Of Utah, Gregory F. Thayn

Theses and Dissertations

Two genera and three species of definite fossil angiosperm wood have been identified from the diverse flora of the Lower Cretaceous Cedar Mountain Formation of Utah for the first time. Well preserved fossil dicotyledonous woods have been found in association with the fern Tempskya and conifer woods at two sites, one east of Castle Dale, Utah 1 and one east of Ferron, Utah. Petrified logs were collected from a horizon between ten and thirty feet below the overlying Dakota Sandstone at the Castle Dale site. Dakota Sandstone is missing at the Ferron site, but the wood occurs on the surface …


Distribution And Relationships Of Utah Brome Grasses In Western North America, Jerry B. Anderson Apr 1973

Distribution And Relationships Of Utah Brome Grasses In Western North America, Jerry B. Anderson

Theses and Dissertations

A considerable amount of study material has beccme available since the revision of the genus in 1900 by Shear, and the revision of the section Bromopsis in 1952 by Wagnon. A number of cytological studies have been done in recent years; and Wagnon's work pointed out the need for a comprehensive study of the entire genus. This study is a taxonomic revision of the Genus Bromus for the State of Utah, and contains illustrations and descriptions of the species; synonomy; distribution maps; and discussions of many of the important aspects of the economics, ecology, and historical treatment. I have recognized …


A Taxonomic Investigation Of The Algae Of The Brigham Young University Campus, Provo, Utah, Cheng Mou-Sheng Apr 1973

A Taxonomic Investigation Of The Algae Of The Brigham Young University Campus, Provo, Utah, Cheng Mou-Sheng

Theses and Dissertations

A taxonomic investigation of the algal flora of the Brigham Young University campus was conducted from October 1971 to August 1972. This algal flora consisted of 27 genera and 36 species of Chlorophyta, 2 genera and 2 species of Euglenophyta, 32 genera and 106 species of Bacillariophyceae (including 16 genera and 33 species of soil diatoms), 1 genus and 2 species of Chrysophyta excluding diatoms and 6 genera and 14 species of Cyanophyta. Diatoms were the predominent algae in this study. Chlorococcum humicola, Vaucheria geminata, Amphora normani, Hantzschia amphioxys and Oscillatoria sancta were prominent in the greenhouses. In the arboretum …