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Theses/Dissertations

Utah

1971

Brigham Young University

Articles 1 - 3 of 3

Full-Text Articles in Life Sciences

Prey Utilization By Nesting Golden Eagles In (Aquila Chrysaertos) In Central Utah, William Bruce Arnell Aug 1971

Prey Utilization By Nesting Golden Eagles In (Aquila Chrysaertos) In Central Utah, William Bruce Arnell

Theses and Dissertations

During the spring of 1969 and 1970, 28 Golden Eagle eyries in four locales in central Utah were observed to determine the prey utilized during the nesting season. Visits were made every two weeks to the eyries. Prey were removed from the nests upon counting to avoid recounting at the next visit. Sixteen species of vertebrates were found as prey for nesting Golden Eagles. Mammals comprised 96 per cent of the prey, and lagomorphs alone accounted for 92 per cent. The blacktail jackrabbit occurred as 77.8 per cent of all prey items. Avian species constituted 3.9 per cent ...


Predatory Activity Of Chrysopa Carnea Stephens In The Integrated Control Of Mite Pests In Utah Apple Orchards, Ray R. Bingham Aug 1971

Predatory Activity Of Chrysopa Carnea Stephens In The Integrated Control Of Mite Pests In Utah Apple Orchards, Ray R. Bingham

Theses and Dissertations

Mite pest problems in Utah apple orchards became generally serious about 1944, when DDT was first used extensively to control Codling moths, Carpocapsa pomonella (Linn.) (Jorgensen, 1967}. Since then several investigators (Pickett et al., 1946; Lord, 1949; Pickett, 1955; Lord, Herbert, and MacPhee, 1958) have examined the influence of various spray programs on apple orchard fauna, while still others (Clancy and Pollard, 1952; Morgan, Anderson, and Swales, 1958; Oat-man and Legner, 1962) have conducted related studies with widely used broad spectrum pesticides on apple mites and their predators. All seem to lend credence to the theory that mite pest problems ...


A Study Of Snail Hosts For Fasciola Hepatica In Utah Valley, Robert Michael Briem Aug 1971

A Study Of Snail Hosts For Fasciola Hepatica In Utah Valley, Robert Michael Briem

Theses and Dissertations

The Meat Inspection Division of the Bureau of Animal Industry in 195 0 reported that 322,647 livers or 2. 4% of 13,112,802 cattle slaughtered under United States Federal Inspection were condemned due to liver fluke infections (Price, 1953). This would amount to an annual loss of 3 million dollars in livers alone considering each liver weighed 10 pounds and retailed 65 cents per pound. This figure could conceiv-ably double or triple if additional losses due to animal death, decreased milk production, poor economic utilization of feed or lower livestock prices were considered.