Life Sciences Commons^™

Primary Production In A Cache Valley, Utah Farm Pond, J. Kent Summers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Primary production was measured on a 9.5 acre Cache Valley, Utah farm pond from July 1971 to July 1972. Polyethylene film tubes, with lids, were used to confine columns of water for determining dissolved oxygen concentration. Once a week, dissolved oxygen samples were taken at sunset, the following sunrise and sunset. Annual primary production was estimated at 1289 grams oxygen per square meter for two of the four stations, and 927 grams oxygen per square meter for the remaining two stations.

The weekly data was computed at once a month intervals to see if it would be possible to get …

Impact Of The Black-Tailed Jackrabbits (Lepus Californicus) On Vegetation In Curlew Valley, Northern Utah, Mark Westoby

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The interrelations of black-tailed jackrabbits and the desert-shrub vegetation on which they were feeding were studied in Curlew Valley, Northern Utah. The vegetation was described as a three-cornered continuum, the corners being types dominated respectively by Artemisia tridentata, Atriplex confertifolia, and Sarcobatus vermiculatus.

Jackrabbit diet was studied by microscopic analysis of plant fragments in stomachs from shot animals. The method was inaccurate, apparently because the ratio of identifiable tissues to all ingested tissues was very low, and varied between plant taxa, and seasonally. This problem seems intractable for desert shrub vegetation.

The diet was similar to that …

The Effects Of Elevation And Vegetation Type On Snow Accumulation And Melt In Logan Canyon, Utah, Paul R. Thies

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Snow accumulation and melt characteristics were studied in Logan Canyon, Utah. Three replications of aspen, conifer, and open field types at 6300, 7100,and 8000 feet were measured for snow depth and water content during 1972. Elevation was found to have the greatest effect on snow water content. The gradient of increasing water content with rise in elevation was found to be .51 inches/100 feet in the zone from 6300 to 7100 feet and 1.9 inches/100 feet from 7100 to 8000 feet. The cooler temperatures at higher elevations partially account for the 8000 foot zone beginning to melt 40 days after …

A Description Of Anglers And Angling Use In Two Areas Of The Uinta Mountains, John F. Hoagland

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The High Uinta Primitive Area, Utah's most popular high mountain recreation area, has a reputation as an excellent trout and grayling fishery. Proposed for inclusion in the National Wilderness Preservation System, the area faces several management dilemmas. The primary problem being that managers must protect the resource from the effects of heavy recreational use without destroying the primitive and aesthetic dimensions of wilderness environment. It appears that much impact on the more accessible lakes is due to fishing use. The objectives of the study were: (1) to determine the proportions of angling to non-angling groups; (2) to describe certain characteristics …

Team Rules And Regulations Used By Football And Basketball Coaches In Utah High Schools, Robert Kent Molgard

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to gather and analyze information concerning the establishment and administration of specific team rules and regulations used by the football and basketball coaches in Utah High schools.

Sub-objectives of this study were: (a) to compare the opinions of coaches according to school classification - class AA, class A, and class B; (b) to compare the opinions of less experienced coaches with those of more experienced coaches; (c) to compare the opinions of basketball coaches with those of football coaches.

One-hundred and thirty-nine coaches responded to a questionnaire that included statements asking for information concerning …

Analysis Of Hunter Characteristics And Attitudes Relating To Utah Shooting Preserves, John T. Ratti

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This paper evaluates the present status of Utah shooting preserves with special reference to attitudes and characteristics of hunters using and not using the shooting preserves system. Data were gathered primarily by a mail questionnaire survey.

Compared to non-users, shooting preserve users were more frequently raised in a suburban or city area, better educated, and had higher yearly incomes. Shooting preserve users were commonly employed as professionals or proprietors, while non-users were often employed as craftsmen, proprietors, or operators.

Most shooting preserve hunters hunted after the state game bird season was closed, and were generally satisfied with Utah preserves. Most …

Mercury, Dieldrin, Ddt, Dde, And Pcb Levels In Tissues From Fish And Wildlife In Utah, Fred A. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fish and wildlife were randomly sampled in Utah from pre-selected x areas and analyzed for levels of total mercury, dieldrin, DDT, and DDE. Levels were well within consumptive tolerance or guideline limits except for mercury levels of fish in Willard Bay Reservoir. PCB's were also identified in a large proportion of samples.

None of the chukars, 6 percent of the pheasants, 4 percent of the waterfowl, and none of the fish sampled, excluding Willard Bay Reservoir, were above the 0.5 ppm guideline level for mercury established by the Food and Drug Administration. Seventy-seven percent of the fish sampled from Willard …

Mule Deer Use Patterns As Related To Pinyon-Juniper Conversion In Utah, Ted L. Terrel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Objectives were (1) to evaluate the seasonal and daily use by mule deer (Odocoileus hemionus) of adjoining converted and natural pinyon pine-Utah juniper woodland (P-J) winter range, and (2) to determine the major factors influencing mule deer use of converted P-J range to provide criteria for deer management. The study was conducted on 3 sites in central, eastern, and southeastern Utah between 1969-72. Data for 1969-72 on physiographic, climatic, and vegetational attributes of the three Utah study areas were related to data from approximately 10,000 deer observations, 5,000 0.01-acre pellet-group count plots, feeding observations of 1,100 deer, 220 …

An Autecological Study Of Blackbrush (Coleogyne Ramosissima Torr.) In Southwestern Utah, James E. Bowns

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to provide basic ecological information on an important but little studied major vegetation type through autecological investigations of the dominant species. Data include climate and soils where this species occurs, root distribution, phenology and growth, seed germination requirements and seedling survival. Percent ground cover provided by blackbrush and other dominant plants as well as the composition of herbaceous understory vegetation was presented. Leaf and stem anatomy of blackbrush revealed features typical of desert shrub species with stem splitting appearing to be a characteristic of this species.

Blackbrush is characterized as a poor forage species …