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Articles 691 - 720 of 755
Full-Text Articles in Other Life Sciences
The Effects Of Campgrounds On Small Mammals In Canyonlands And Arches National Parks, Utah, Gregory A. Clevenger
The Effects Of Campgrounds On Small Mammals In Canyonlands And Arches National Parks, Utah, Gregory A. Clevenger
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Campground use in our national parks is increasing yearly, but little quantitative data are available concerning the impact this use is having on the ecology of the campground and surrounding area. This paper reports on some of the effects of campgrounds on small mammal populations in Canyonlands and Arches National Parks, Utah. Data collection consisted of live-trapping from April to November, 1975 (12,337 trap-nights). The populations of Ordls kangaroo rat (Dipodomys ordii), antelope ground squirrels (Ammospermophilus leucurus), deer mice (Peromyscus spp.), woodrats (Neotoma spp.), Colorado chipmunks (Eutamias guadrivittatus), and desert …
Diet Composition And Activities Of Elk On Different Habitat Segments In The Lodgepole Pine Type, Uinta Mountains, Utah, William B. Collins
Diet Composition And Activities Of Elk On Different Habitat Segments In The Lodgepole Pine Type, Uinta Mountains, Utah, William B. Collins
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The biweekly diets of tame elk (Cervus canadensis nelsoni) were established on a species dry-weight basis for different habitat segments of the lodgepole pine (Pinus contorta) type, Principal species in the diets (5% or more) on each habitat segment were generally composed of preferred species. However, some highly abundant but non-preferred species took on principal dietary status, whereas some preferred species, scarce in the vegetation, contributed less than 5 percent to diets. Forbs contributed most to total consumption; grasses and sedges were the second largest contributors. Browse appeared to be of limited importance, but mushrooms had …
Forage Preferences Of Mule Deer In The Lodgepole Pine Ecosystem, Ashley National Forest, Utah, Joseph A. Deschamp
Forage Preferences Of Mule Deer In The Lodgepole Pine Ecosystem, Ashley National Forest, Utah, Joseph A. Deschamp
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
During the summer of 1976, five tame, trained mule deer (Odocoileus hemionus hemionus) were used to determine botanical composition and relative preference of mule deer diets on five habitat segments in the lodgepole pine (Pinus contorta) ecosystem of northeastern Utah. Diets were statistically analyzed according to estimated weight consumption per unit of time spent feeding on the different segments. Habitat segments sampled were: clearcut forest, dry and wet meadow, mature forest, and stagnated forest.
Diets differed between segments mainly because of differences in plant species available and their abundance. The diets in the non-forested segments averaged …
The Effect Of Sagebrush Reduction Practices On Sharp-Tailed Grouse Use In Southeastern Idaho, Barry Anthony Mcardle
The Effect Of Sagebrush Reduction Practices On Sharp-Tailed Grouse Use In Southeastern Idaho, Barry Anthony Mcardle
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The effects of vegetation-manipulative practices on habitat use by sharp-tailed grouse (Pedioecetes phasianellus columbianus) were studied during the period 1974-1975 in Curlew National Grasslands, Oneida County, Idaho. Vegetational transects were run twice each month during the growing season of May-August, 1974-1975, to assess vegetational differences between treatments. Transects were run to estimate sharp-tailed grouse use on the eight study areas twice monthly. Vegetational plots were used at each sharp-tailed grouse observation site to determine correlates of vegetation types and grouse use. Chained areas were used heaviest by grouse during the study period suggesting that chaining created the most …
A Study Of Trillium Cuneatum And T. Luteum, Alan B. Adams
A Study Of Trillium Cuneatum And T. Luteum, Alan B. Adams
Masters Theses
A systematic study was made of two taxa of the genus Trillium subgenus Phyllantherum. Morphological, biochemical, ecological, and distributional data were analyzed in order to reevaluate past taxonomic treatments of Trillium cuneatum and T. luteum.
Morphological studies revealed the similarities of the two taxa. It was noted that T. cuneatum exhibited great plasticity with respect to morphology, whereas T. luteum showed more homogenous features. This same relationship was noted with the flavonoids of the two taxa with T. cuneatum showing more variability than T. luteum. The chemistry of the two taxa was unique in that quercetin and kaempferol compounds identified …
Stability Of Stream Communities Exposed To Underground Nuclear Tests On Amchitka, Aleutian Islands, Alaska, Richard Ames Valdez
Stability Of Stream Communities Exposed To Underground Nuclear Tests On Amchitka, Aleutian Islands, Alaska, Richard Ames Valdez
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A major bioenvironmental effect of The United States Atomic Energy Commission's Underground Nuclear Testing Program on Amchitka Island, Alaska was the decimation of stream communities by drilling muds from the device emplacement holes. These muds reached two of these streams 4 months and 2 years before the Milrow and Cannikin tests, respectively. Recolonization of fishes and macroinvertebrates in these small streams (Clevenger and White Alice Creeks) began 1 month after spill abatement.
Complete recovery of Dolly Varden in Clevenger Creek occurred less than 5 years after the spill. Of the other native fishes, pink salmon spawned 1 1/2 years after …
The Effects Of Herbicidal Spraying Upon A North Central Utah Blue Grouse Population, T. Barry Barnes
The Effects Of Herbicidal Spraying Upon A North Central Utah Blue Grouse Population, T. Barry Barnes
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The effects of herbicidal spraying upon a North Central Utah blue grouse population were studied. Baseline data were obtained in 1970 and 1971 prior to the spraying on June 2, 1972. The spraying was done to control wyethia (Wyethia amplexicaulis) and black sage (Artimesia nova) which covered 48 percent and 20 percent of the study area respectively.
No differences in blue grouse numbers occurred following spraying with 17 to 20 broods using the area in 1972 compared to 18 to 20 broods in 1971. Total population of blue grouse each year was between 90 and 104 …
Rates Of Food Digestion By Brown Trout (Salmo Trutta) In The Blacksmith Fork River, Utah, John M. Salevurakis
Rates Of Food Digestion By Brown Trout (Salmo Trutta) In The Blacksmith Fork River, Utah, John M. Salevurakis
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Digestion rates have been measured for brown trout (Salmo trutta Linn.) during summer, fall, winter and spring seasons on the Blacksmith Fork River, Utah. Exponential rates of digestion varied from a gradual rate of -0.2372 to an accelerated rate of -0.6808. Factors found to affect digestion rate most were water temperature and the amount of food in the stomach. The affect of temperature was not clearly isolated. However, the amount of food in the stomach, at the beginning of the digestion study, appeared to have the most pronounced effect. Four of the five digestion rate measurements, with high coefficients …
Inventory Of Lake Studies In Maine, Charles F. Wallace Jr., James M. Strunk
Inventory Of Lake Studies In Maine, Charles F. Wallace Jr., James M. Strunk
Maine Collection
Inventory of Lake Studies in Maine
By Charles F. Wallace, Jr. and James M. Strunk
State Planning Office, Water Resources Planning Division, July 1973.
"Printed under Appropriation Number 4248.5 and financially assisted by planning grants from the United States Water Resources Council Title III funds."
Contents: Introduction / Investigating Agencies / Federal Agencies / State Agencies / Regional Planning Commissions and Economic Development Districts / Maine Colleges and Universities / Private / Other Private / Other / Appendices
The Effectiveness Of Montessori Sensorial Materials With Preschool Children, Dorothy Raney Chitwood
The Effectiveness Of Montessori Sensorial Materials With Preschool Children, Dorothy Raney Chitwood
Masters Theses
The purpose of this study was to compare the perception and sensorimotor development of preschool children who used specific Montessori sensorial materials. Based on the literature, it was assumed that; 1. Because of the development and accentuation of form and tactile stimulation in the preschool child, extensive use of Montessori equipment designed in form for tactile and visual exploration and learning would influence development of visual perception. 2. With the perceptual-motor training of the Montessori sensorial materials, the subjects would make gains in fine motor coordination.
It was hypothesized that the gains in scores on the Marianne Frostig Developmental Test …
Analysis Of Hunter Characteristics And Attitudes Relating To Utah Shooting Preserves, John T. Ratti
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 …
An Autecological Study Of Blackbrush (Coleogyne Ramosissima Torr.) In Southwestern Utah, James E. Bowns
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 …
The Effects Of Elevation And Vegetation Type On Snow Accumulation And Melt In Logan Canyon, Utah, Paul R. Thies
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 …
Primary Production In A Cache Valley, Utah Farm Pond, J. Kent Summers
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 …
The Closing Circle: A Review Of Barry Commoner's Book, Robert L. Scott
The Closing Circle: A Review Of Barry Commoner's Book, Robert L. Scott
IUSTITIA
Commoner's book provides an opportunity to review the problems of pollution and their causes in the social, political, and economic fabric of our society. This review also provides an opportunity to compare and contrast natural and social laws. From this examination of the problem of pollution and the interface between natural and social law emerge certain ideological concerns confronting Americans as a people.
Development Of An Interpretive Document For The Bear River Migratory Bird Refuge, William R. Burbridge
Development Of An Interpretive Document For The Bear River Migratory Bird Refuge, William R. Burbridge
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Since its inception, the National Wildlife Refuge System has been administered for management and restoration of habitat essential to the propagation and welfare of resident and wintering wildlife species. Acquisition of additional System units has been primarily directed to the benefit of the migratory bird resource. As of July 1, 1968 about 250 of the 321 refuge units were managed for the waterfowl resource (U. S. Department of Interior, 1968a). However, this growth of the System has been accompanied by an increase in recreational use of the refuges. In 1962, Public Law 87-714, the Refuge Recreation Act, was passed to …
Aquatic Invertebrate Consumption By The Major Fish Species In The Blacksmith Fork River, Theodore F. Meyers
Aquatic Invertebrate Consumption By The Major Fish Species In The Blacksmith Fork River, Theodore F. Meyers
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Exponential rates of digestion are described for brown trout and whitefish for July, October, December (1969), and April (1970). The slope of the line fitted to the digestion data from each month was defined as the instantaneous rate of digestion and applied to an exponential growth model to determine the instantaneous consumption rate.
The digestion and consumption rates were applied to field measurements of percent fullness to determine the amount of food material ingested during a 24 hour period. Brown trout consumed 127, 24, 19, and 84 mean percent of their stomach capacity in the July, October, December, and April …
An Empirical Analysis Of Herzberg's Motivator-Hygiene Theory, Bob Vernon Harris
An Empirical Analysis Of Herzberg's Motivator-Hygiene Theory, Bob Vernon Harris
Masters Theses
The purpose of this study was to investigate a relatively new and highly controversial theory of work motivation promulgated by·Dr.Frederick Herzberg . This theory, called the Motivator-Hygiene or Two Factor Theory, was based on information obtained using an open-ended, semi-structured interview technique. An extensive review of the literature indicated that all supportive studies were based on a similar technique; most studies using other techniques were non-supporting.
Using experience and information obtained in a pilot study, a 135-item performance specimen checklist was developed, validated, and administered to more than 100 students at a Tennessee vocational-technical training school. The test instrument was …
Ecology Of The Morgan Creek And East Fork Of The Salmon River Bighorn Sheep Herds And Management Of Bighorn Sheep In Idaho, James K. Morgan
Ecology Of The Morgan Creek And East Fork Of The Salmon River Bighorn Sheep Herds And Management Of Bighorn Sheep In Idaho, James K. Morgan
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
An ecological study on the Morgan Creek and the East Fork of the Salmon River, Idaho, Bighorn Sheep herds was conducted from July 1, 1966 to February 28, 1970.
The Morgan Creek population numbered about 100 animals upon termination of the study. The trend of this population was downward. The East Fork population numbered about 50 animals and the trend appeared to be stable or slightly downward.
Productivity of both herds was low. Lamb mortality was high and recruitment to the breeding herd low. Low recruitment rates coupled with hunting pressure caused a decline in the ram component of both …
The Effects Of Available Water Upon Populations Of Chukar Partridge On Desert Mountains Of Utah, William W. Shaw
The Effects Of Available Water Upon Populations Of Chukar Partridge On Desert Mountains Of Utah, William W. Shaw
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The importance of surface water to chukar partridges (Alectoris graeca) and the feasibility of rain-catchment devices for improving chukar habitat were studied on the Thomas and Dugway Mountain Ranges in western Utah during 1969 and 1970.
Sources of surface water were removed from one mountain range, and chukar populations on that range were compared with populations on an adjacent range with permanent sources of water.
Providing drinking water did not improve chukar productivity, survival, or availability to hunters. Although most birds concentrated around water supplies in the summer, some chukars appeared to live completely independent of any permanent …
The Coalville Deer Herd In Northeastern Utah: Its Ecology And Management, Gary L. Hickman
The Coalville Deer Herd In Northeastern Utah: Its Ecology And Management, Gary L. Hickman
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The primary objective of this study on the Coalville Deer Management Unit adjacent to the corner of Wyoming in Utah was to determine the condition of the deer herd in relation to its range and population characteristics.
Postseason doe-fawn ratio was 100:77, while an adjusted doe-fawn ratio accounting for the unproductive female yearling segment was 100:105. The approximate net-productivity for 1964 was 44 percent compared to 27 percent in 1965. In 1964-65, the average age-class mortality rate for the male and female segments was 45 and 35 percent respectively. Preseason and postseason sex ratios were 64:100 and 60:100 respectively.
Mature …
Pheasant Raising, P Smetana
Pheasant Raising, P Smetana
Journal of the Department of Agriculture, Western Australia, Series 4
THERE has been increased interest in pheasant raising in Western Australia over the past few years, mainly as a result of more sophisticated eating habits and the associated restaurant boom, as well as farmers in country areas looking for more profitable sidelines.
Seasonal Utilization Of Sago Pondweed By Waterfowl At Bear River Migratory Bird Refuge, Utah, Michael R. Sterling
Seasonal Utilization Of Sago Pondweed By Waterfowl At Bear River Migratory Bird Refuge, Utah, Michael R. Sterling
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Seasonal utilization of sago pondweed (Potamogeton pectinatus L.) by waterfowl was studied at Bear River Miqratory Bird Refuge by comparing amounts of sago production on a series of plots on Unit Four. One plot was available to carp and waterfowl; one only to carp; and one available to neither.
The cage used to eliminate carp and waterfowl use of a plot caused a significant increase in sago production. The increase was attributed to less turbidity and less wind and wave action within the cage.
Carp distribution was limited to deep-water portions of Unit Four, a small area, and …
An Evaluation Of Factors Affecting Establishment And Survival Of Russian Wildrye (Elymus Junceus Fisch.) On Foothill Ranges In Utah, Dale Lynn Drawe
An Evaluation Of Factors Affecting Establishment And Survival Of Russian Wildrye (Elymus Junceus Fisch.) On Foothill Ranges In Utah, Dale Lynn Drawe
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Several factors affecting establishment and survival of Russian wildrye were studied in the greenhouse and in the field.
Greenhouse studies conducted at Utah State University examined (1) the effects of competition on vigor and production of Russian wildrye, (2) moisture use by Russian wildrye and four weeds, and (3) effects of moisture level on emergence and seedling vigor.
During 1967 and 1969 at Tintic Valley field experiments were initiated to study effects on germination and seedling establishment of (1) seasons, (2) methods, and (3) intensities of seeding Russian wildrye. In 1968 and 1969 studies were made of phenology and root …
The Role Of Agonistic Behavior In Regulation Of Density In Uinta Ground Squirrels (Citellus Armatus), Richard J. Burns
The Role Of Agonistic Behavior In Regulation Of Density In Uinta Ground Squirrels (Citellus Armatus), Richard J. Burns
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Agonistic behavior of ground squirrels was studied for two years in north-eastern Utah at an elevation of 6,300 feet. The main objective was to determine what role agonistic behavior had in regulating density in a population. All individuals in an unconfined population were trapped I marked I and observed from towers. Detailed data on behavior and density were recorded.
Though loss from a variety of factors occurred throughout the year I agonistic behavior had an important role in regulating the population at least twice during the year. In spring some squirrels I usually yearling males and late emerging yearling females, …
Waterfowl Ecology And Utilization Of Uinta Mountain Water Areas, Steven Roger Peterson
Waterfowl Ecology And Utilization Of Uinta Mountain Water Areas, Steven Roger Peterson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Waterfowl utilization was recorded by observing study units at different elevations from the time water areas were thawed in the spring until they were frozen in the fall.
Sixteen species of waterfowl were observed in the Uinta Mountain; mallards, green-winged teal, pintails, and ring-necked ducks were breeders.
Ninety-eight percent of all waterfowl observed were below 10,000 feet.
Waterfowl numbers were highest during migratory periods and lowest in the breeding season.
Adult waterfowl were observed most often on natural water areas and beaver ponds greater than one acre.
Water areas at lower elevations had high indices of aquatic invertebrates and contained …
The Abundance, Migration And Management Of Mule Deer In Dinosaur National Monument, Robert W. Franzen
The Abundance, Migration And Management Of Mule Deer In Dinosaur National Monument, Robert W. Franzen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Dinosaur National Monument, in northwestern Colorado and northeastern Utah, is comprised of 206,409 acres and contains several deer winter ranges. A need for deer studies developed because of winter deer mortality and deteriorating range conditions on some parts of the Monument.
Approximately 500 deer winter on the Yampa Bench and approximately 300 deer winter on the Island Park winter range. These are the two main winter ranges within the Monument.
Deer on the Yampa Bench migrated an average of 7.3 air miles to the south and summered on the Blue Mountain Plateau during the summer of 1966. This Plateau is …
An Experimental Study Of Spinning Tension And Its Relation To Fiber Properties And End Breakage, Charles Busch Landstreet
An Experimental Study Of Spinning Tension And Its Relation To Fiber Properties And End Breakage, Charles Busch Landstreet
Masters Theses
[From the Statement of the Problem - Abbreviated]:
The end-breakage rate is a function of many variables, some of which can be controlled and some of which cannot. Spindle speed, ring diameter, yarn number, yarn twist, and fiber properties are some of the controllable variables. Ring wear, traveler wear, and yarn irregularity are variables that cannot be controlled.
Experiments conducted in a spinning laboratory can be carried out under test conditions that are impossible to duplicate in a textile mill. The disadvantage is that to get reproducible results long-term experiments are required if conventional test methods are used. …
Baking Time And Watt-Hour Consumption In Baking Potatoes Wrapped In Aluminum Foil Shiny Side Out And Dull Side Out, Plain, And Oiled In A Range Oven, Rotisserie Oven, And Toast-R-Oven, Nancy Lou Lawson
Masters Theses
Aluminum foil is usually considered another aid to the homemaker in food preparation. The advantages claimed are that it reduces the time needed to cook the food and to clean the equipment after cooking. Some individuals recommend it as a means of heat retention. Does a foil wrapping on a potato give one a decided advantage in cooking time as compared to baking a plain or oiled potato? Does it make a difference which side of the aluminum foil is to the outside?
This study compares the baking time and energy consumed in baking potatoes wrapped in aluminum foil shiny …
The Influence Of Salinity On The Growth And Reproduction Of Marsh Plants, D. K. Kaushik
The Influence Of Salinity On The Growth And Reproduction Of Marsh Plants, D. K. Kaushik
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The water resources of the State of Utah are rapidly being developed for agriculture and industry. They are so extensively exploited that their continued and additional use must be justified on the basis of need and efficiency of utilization. To determine more accurately the quantity and quality of water needed to operate a marsh, a project was undertaken by the Utah Department of Fish and Game, the Engineering Experiment Station and the Cooperative Wildlife Research Unit at Utah State University. The study was divided into the two phases, one on quantity and one on quality of water. The present report …