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The Utah Juniper, Volume 35, Utah State University

The Utah Juniper

Annual publication of The Utah Foresters, Utah State Agricultural College.

Influence Of Some Environmental Factors On Black Hills Beetle Population Trends, Mark D. Mcgregor

Biology

The Black Hills beetle, Dendroctonus ponderosae Hopk. is the most destructive insect of ponderosa pine, Pinus ponderosa Laws., on the Dixie National Forest and in Bryce Canyon National Park in southern Utah. This beetle also attacks limber, whitebark, pinyon, lodgepole, bristlecone and Mexican white pines, and occasionally Englemann and blue spruces throughout its range in South Dakota, Wyoming, Colorado, Utah, northern Arizona and New Mexico. It seldom produces broods in spruces, because the parent and young brood are usually "pitched-out." This insect has been known to recur periodically in stands of overmature ponderosa pine.

Influence Of Some Environmental Factors On Black Hills Beetle Population Trends, Mark D. Mcgregor

Biology

The Black Hills beetle, Dendroctonus ponderosae Hopk. is the most destructive insect of ponderosa pine, Pinus ponderosa Laws., on the Dixie National Forest and in Bryce Canyon National Park in southern Utah. This beetle also attacks limber, whitebark, pinyon, lodgepole, bristlecone and Mexican white pines, and occasionally Englemann and blue spruces throughout its range in South Dakota, Wyoming, Colorado, Utah, northern Arizona and New Mexico. It seldom produces broods in spruces, because the parent and young brood are usually "pitched-out." This insect has been known to recur periodically in stands of overmature ponderosa pine.

Influence Of Some Environmental Factors On Black Hills Beetle Population Trends, Mark D. Mcgregor

Biology

The Black Hills beetle, Dendroctonus ponderosae Hopk. is the most destructive insect of ponderosa pine, Pinus ponderosa Laws., on the Dixie National Forest and in Bryce Canyon National Park in southern Utah. This beetle also attacks limber, whitebark, pinyon, lodgepole, bristlecone and Mexican white pines, and occasionally Englemann and blue spruces throughout its range in South Dakota, Wyoming, Colorado, Utah, northern Arizona and New Mexico. It seldom produces broods in spruces, because the parent and young brood are usually "pitched-out." This insect has been known to recur periodically in stands of overmature ponderosa pine.

An Ecological Study Of The Bear Lake Littoral Zone, Utah-Idaho, Gar W. Workman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the past, several projects have been conducted at Bear Lake, Utah-Idaho, by the Utah State University through the Wildlife Resources Department, in conjunction with the Utah and Idaho fish and game departments, the Fish and Wildlife Service , and the National Science Foundation. These projects have dealt primarily with limnology, limnological techniques, fish life histories, fish movements, and bottom fauna in the pelagic and benthic areas of the lake. Subsequently, a littoral zone project was set up to study some of the ecological aspects of the shallow waters of Bear Lake, and some of the influences that this area …

Utah State University Commencement, 1963 – Main Campus, Utah State University

Commencement Programs

Seventieth Annual Commencement of Utah State University

Bear Lake And Its Future, William F. Sigler

Faculty Honor Lectures

Even in such a wide-ranging and eternally changing field as biology, a few statements about certain aspects can be made with a minimum likelihood of their being refuted. In this class are the following: No two lakes are identical. Any given lake is simultaneously many things to many people. A lake is never static. The influence of a lake reaches far beyond its shores.

Bear Lake, Utah-Idaho, can be used to good advantage to exemplify the truth of these statements. It defies meaningful comparison with other lakes unless a mass of detailed statistics is employed. To the fisherman and water …

The Utah Juniper, Volume 30, Utah State University

The Utah Juniper

Annual publication of The Utah Foresters, Utah State Agricultural College.

An Ecological Study Of The Bottom Fauna Of Bear Lake Idaho And Utah, Earl W. Smart

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In evaluating the potential ability of a lake to produce fish, probably no single standard is so important as an estimate of the amount of bottom fauna (Deevey and Bishop, 1942).

The study of the bottom fauna of Bear Lake was a part of the investigation of its limnology and fisheries, begun in 1952. This study was sponsored through federal monies made available through the Dingle-Johnson Act. The primary purpose of the study was to examine all the evidence in estimating the fish producing capacity of the lake. Bear Lake is the second largest fresh water lake in Utah but …

Utah State University Commencement, 1958 – Main Campus, Utah State University

Commencement Programs

Sixty-Fifth Annual Commencement of Utah State University

The Utah Juniper, Volume 27, Utah State University

The Utah Juniper

Annual publication of The Utah Foresters, Utah State Agricultural College.

Effects Of Temperature And Light On The Mass Rearing Of The Geminate Leafhopper, Colladonus Geminatus (Van D.), Walter H. A. Wilde

Biology

Mass rearing experiments with Colladonus geminatus ( Van D.) conducted in an experimental greenhouse laboratory from January 30, 1952, to April 18, 1952, indicated light had important breeding effects on C. geminatus, the geminate leafhopper. A light intensity of forty foot-candles provided by a 100 watt incandescent bulb for a period of 16 hours daily was the most effective of the three light intensities and the three heat ranges tried. It was found in the expirimental cages that light had the effect of speeding up the development of the new leaf hopper generation, progeny of the overwintering adults from …

An Ecological Study Of The Utah Sculpin Cottus Bairdi Semiscaber In Logan River, Utah, William Merle Zarbock

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study of the Utah sculpin Cottus bairdi semiscaber, or Rocky Mountain bullhead as it is known locally on Logan River, Utah, is primarily one of determining its relation to game fish. Field work for this study began in 1949 and continued to March of 1951. Numbers of the Utah sculpin on Logan River have been estimated to be as high as 150 per tenth mile of stream. The larger populations are in the area of the third impoundment on Logan River and downstream.

Utah State University Commencement, 1951 – Main Campus, Utah State University

Commencement Programs

Fifty-Eighth Annual Commencement of Utah State Agricultural College

Enemies Of Aspen, Clyde M. Christensen, Ralph L. Anderson, A. C. Hodson, Paul O. Rudolf

Aspen Bibliography

So long as aspen was considered primarily a weed species, there was little concern over the enemies which might injure or destroy it. Sometimes these enemies were actually considered "blessings in disguise. Now, however, that aspen not only is the most abundant "but also one of the most widely utilized tree species in the Lake States, there is increasing interest in anything that may affect its future supply. For that reason this brief summary of information on the enemies of aspen has been assembled.

The Ecological Distribution Of Mammals Of Green Canyon, North Logan, Cache County, Utah, And Their Relation To Plant Communities, Charles J. Stewart

Biology

The interrelationships that exist between mammals and their habitat have been of profound interest to mammalogists and ecologists for many years. The ecology of the mammal has been given equal rank with that of its taxonomy and distribution. It becomes apparent to anyone studying mammals that a great affinity exists between them and the habitat in which they live.

The Ecological Distribution Of Mammals Of Green Canyon, North Logan, Cache County, Utah, And Their Relation To Plant Communities, Charles J. Stewart

Biology

The interrelationships that exist between mammals and their habitat have been of profound interest to mammalogists and ecologists for many years. The ecology of the mammal has been given equal rank with that of its taxonomy and distribution. It becomes apparent to anyone studying mammals that a great affinity exists between them and the habitat in which they live.

The Ecological Distribution Of Mammals Of Green Canyon, North Logan, Cache County, Utah, And Their Relation To Plant Communities, Charles J. Stewart

Biology

The interrelationships that exist between mammals and their habitat have been of profound interest to mammalogists and ecologists for many years. The ecology of the mammal has been given equal rank with that of its taxonomy and distribution. It becomes apparent to anyone studying mammals that a great affinity exists between them and the habitat in which they live.

Range Land Of America And Some Research On Its Management, Laurence A. Stoddart

Faculty Honor Lectures

Although grazing of livestock has been a practice and a profession of man almost from his beginning only recently has range management reached anything approaching a pre~ cise science. Although ' trials and errors over the years brought to light much practical methodology for assuring high production from grazing land, still it remained for the plant physiologist and ecologist to find the whys and wherefores, and to advance new methods and new thoughts which promise to increase productivity still further and at the same time maintain the great range resource.

The peculiar land situation that marked America in her forma~ …

A Taxonomic And Ecological Study Of Acridinae Of Utah (Orthoptera-Locustidae), Herald C. Bennion

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Orthoptera, especially the family Locustidae, is one of the most important and most interesting orders of insects in the state of Utah. It includes a polyphagus group of great economic importance in the state. The topography and climate of Utah varies from forested alpine slopes to hot arid desert wastes, several life zones being represented. This great variation from desert to alpine in Utah presents a rather unique region for taxonomic and ecological studies of the Orthoptera.

The most familiar representatives of the insect order Orthoptera are the long-horned grasshoppers, locusts, crickets, katydids, and cockroaches. Orthoptera are characterized by Comstock …

A Preliminary Survey Of Some Of The More Important Insects Of The Cache National Forest, Theodore O. Thatcher

Biology

Studies of forest insects in America have been, in the past, principally undertaken only in cases of serious outbreaks, and little or no attention has been paid to determinations of the presence of potential pests. Especially is this true of the western United States where forest conservation has received practically no consideration other than fire control and attacks upon serious pest outbreaks, However, of late years it has taken a more important position in public planning with the Civilian Conservation Corps being utilized in reforestation and insect control programs throughout the nation. Little effort has been made to study the …

A Preliminary Survey Of Some Of The More Important Insects Of The Cache National Forest, Theodore O. Thatcher

Biology

Studies of forest insects in America have been, in the past, principally undertaken only in cases of serious outbreaks, and little or no attention has been paid to determinations of the presence of potential pests. Especially is this true of the western United States where forest conservation has received practically no consideration other than fire control and attacks upon serious pest outbreaks, However, of late years it has taken a more important position in public planning with the Civilian Conservation Corps being utilized in reforestation and insect control programs throughout the nation. Little effort has been made to study the …

The Insect Association Of A Local Enviornmental Complex In The Dsitrict Of Holmes Chapel, Cheshire., Alfred E. Cameron

Bu

No abstract provided.