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A Survey Of The Food Habits And Distribution Of The Fishes Of Tuckahoe Creek, Virginia, With Special Emphasis On Lepomis Macrochirus Rafinesque, David Andrew Flemer

Master's Theses

An integral part of the ecological study of any organism is a good understanding of the food relationships. Basic studies of the distribution and ecology of common fresh-water fishes are necessary before a more detailed analysis can be made of the fishes in a particular area. Lagler (1956) states that food habit studies help determine population levels, rates of growth, and condition of the fishes. He also concludes that they serve as a partial basis for determining the status of various predatory and competing forms. Raney (1942) states that an intelligent fishery management program depends heavily upon information gained through …

A Distributional Check-List Of New Mexican Mammals, Arthur H. Harris

Biology ETDs

Vernon Bailey's Mammals of New Mexico is not a satisfactory source of data for many studies which directly or indirectly involve distributions of mammals within New Mexico. The present work is an attempt to provide such a source--to bring together in usable form all published records of occurrence within the state for each species of mammal that is known to occur in New Mexico and also to make available such unpublished records as are present in the University of New Mexico Collection of Vertebrates. Some additional information on names, life-zone preferences, and subspecies to be found within the state has …

Present Status Of Optical Corneal Grafts, John V. Balian

Henry Ford Hospital Medical Journal

No abstract provided.

Front Matter

Henry Ford Hospital Medical Journal

No abstract provided.

After Office Hours: A Visit With Dr. Jean Paul Pratt, Sam Gordon Berkow

Henry Ford Hospital Medical Journal

No abstract provided.

The Staphylococci, Joseph Paul Truant

Henry Ford Hospital Medical Journal

No abstract provided.

Introduction Of New Staff Members

Henry Ford Hospital Medical Journal

No abstract provided.

International Symposium: The Biology Of Pyelonephritis

Henry Ford Hospital Medical Journal

No abstract provided.

The Development Of The Weberian Ossicles In Pantosteus Plebius, John Lawrence Butler

Biology ETDs

The Weberian apparatus, which was first described by Weber in 1820, is characteristic of the largest order of freshwater fishes, the Ostariophysi, a group that includes, forty-two families, among which are the minnows, suckers, siluroids, and characids. The apparatus of the family Catostomidae, the suckers, is one of the more complex because the anterior vertebrae are more highly modified than in most other groups. Although the suckers have a more complex form of apparatus, they have received comparatively little study, and this is the first developmental investigation of the Weberian ossicles of any catostomid.

The Distribution And Ecology Of The Hispid And Least Cotton Rat (Genus Sigmodon) In New Mexico, John S. Mohlhenrich

Biology ETDs

Two species of cotton rats, Sigmodon minimus Mearns (least cotton rat) and S. hispidus Baird (hispid cotton rat), occur in the Rio Grande Valley of New Mexico. The northernmost published record-station for S. hispidus is near Scorro, Scorro County ( Bailey, 1931: 167), and that S. minimus is near Isleta, Bernalillo County (Ivey, 1947: 498 and map). When recent field work by the author revealed the presence of both species in the Rio Grande Valley north of these published record-stations the problem arose whether the range extensions were the result of a recent northward extension of the range of the …

Kentucky Warbler (Vol. 35, No. 2), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

The Effect Of Hydrogen Fluoride On Light And Dark Products Of Carbon Dioxide Fixation In Plants, Cleon W. Ross

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Damage to vegetation caused by fluoride compounds has been reported for a large number of plant species. In recent years toxicity to plants caused by atmospheric fluorides has been the subject of studies by a number of laboratories. These studies have been primarily concerned with determining the extent of injury caused by fluorides, describing the symptoms which occur and attempting to correlate them with the amounts of the element in the tissue and with some environmental factors. Thomas (1951) has given a general review of these subjects. Attempts have been made to control fluoride damage by spraying the leaves with …

Biochemical Changes In The Devascularized Femoral Head, Jeanne Wiesseman

Loma Linda University Electronic Theses, Dissertations & Projects

A review of the literature indicates that there have been many attempts to determine the viability of the femoral head after trans cervical fracture of the neck of the femur. These methods have included the use of radioactive isotopes, venography, arteriography and intramedullary pressure determinations. None of these methods have proved entirely satisfactory.

The purpose of this investigation was to determine some of the biochemical changes taking place in the devascularized femoral head. Nineteen dogs were used for the experiments. The femoral neck was fractured transcervically and devascularized. Total devascularinations were performed in the majority of the animals. The animals …

Behavior Of The Red-Footed Booby (Sulasula) In British Honduras, Jared Verner

LSU Historical Dissertations and Theses

During three months of the breeding season in a colony of 3500 Red-footed Boobies (Sula sula) on 45½-acre Half Moon Caye, fifty miles east of Belize, British Honduras, that species’ little-known breeding activities were investigated. Feeding flights of boobies began leaving the caye before daylight and returned in the evening until after dark. Wind direction and velocity notably affected the mode of the birds’ departure but little affected their direction. Average flight-unit size was 2.41 birds. Contrary to published accounts, the boobies were able to take flight from the ground.

Effects Of Gamma Radiation On Asparagus And Tomatoes, Arthur L. Rivers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Since growers are generally unable to produce food the year-round, preservation of available food by the growers and processors has continued to challenge the minds of these men and their scientific cohorts. Even the consumer is subject to this problem and mist rely on those from. whoa he receives food as to its present and eventual condition. Many methods of preservation have been used such as pickling, drying, smoking, canning, and freezing. Most of these preservation methods require excessive handling and/or extensive storage facilities.

Lethal Concentrations And Detoxification Time Of Toxaphene For Goldfish, Gambusia And Rainbow Trout, Gar W. Workman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the past few years the Utah Fish and Game Department, as well as the fish and game departments of other states, has been spending fisheries money for fish eradication on both lakes and streams. The Utah Fish and Game Department recently suggested to the University that research be initiated on the subject of toxaphene as a fish poison. Consequently, a better insight into conditions that exist for a given water type could be developed.

A Study Of Detachment Of Soil By Artificial Rainfall And Its Relation To The Dispersion Ratio And Water Stable Aggregates For Nine Utah Soils, Pundlik N. Kalbhor

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study of soil erodibility has become of paramount interest in the last few decades. The effects of soil erosion are serious and extensive and affect nearly all people.

In general, man can do little or nothing about the geologic erosion or natural erosion in which the processes of rock weathering and soil erosion gradually wear down the earth's surface. However, human disturbance of the natural conditions of the land surface often creates accelerated erosion. Fertility of eroded soil is usually reduced measurably and crop yields are lowered considerably as erosion removes seed soil nutrients and cover crops. Loss of …

The Biology Of The Utah Chub, Gila Atraria (Girard), Of Scofield Reservoir, Utah, Harold F. Olson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Utah chub is one of the most important non-game fish in Utah. It has a wide range, and occurs in every drainage in Utah. The Utah chub is not important economically as food fish nor is it of much value commercially. The sportsmen think of this species as trash and do not consider catching or consuming them. However, the Utah chub may be caught on hook and line more readily than many game species. The Utah chub in Scofield Reservoir have been caught by trolling, bait fishing and fly casting and furnish considerable sport when caught with a light …

The Use Of Protease Enzymes In The Manufacture Of Cheddar Cheese, Osamu Fujiwara

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The factors governing flavor and body and texture in cheese making include the quality of the milk used, the heat treatment of the milk, the quality and quantity of the starter, the treatment during the ripening period, other biological conditions and manufacturing technics.

An Evaluation Of The Salt Tolerance Of Selected Clones Of Agropyron Elongatum, Jordan G. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Salt-affected soils make up much of the bottom-lands of the arid and semiarid areas of the western United States and are especially prevalent in irrigated regions. Such soils require special remedial measures, management practices, and salt tolerant crops if they are to have economic value.

"The Unknown Darwin", Loren Eiseley

Special Collections: Oregon Public Speakers

No abstract provided.

The Seventy-First Session Of The Iowa Academy Of Science And The Twenty-Sixth Convention Of The Iowa Junior Academy Of Science, April 17, 1959, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

The Natural History Of Necturus: Ii, Joseph P. Harris Jr.

Field and Laboratory

Necturus has permanent external gills, simple internal lungs, and a skin well supplied with blood vessels; all of which have been reported functional in respiration.

Bulletin No. 11: A Roadside Crisis: The Use And Abuse Of Herbicides, Richard H. Goodwin, William A. Niering

Bulletins

A proposed program for use of herbicides on town roads, to avoid present destructive practices. 13 pp.

The Comparative Biochemistry Of Pituitary Growth Hormone: The Seventh Edsel B. Ford Lecture, Alfred E. Wilhelmi

Henry Ford Hospital Medical Journal

No abstract provided.

Notes On Scottsbluff, Nebraska, Tornadoes, 27 June 1955, Robert G. Beebe

National Oceanographic and Atmospheric Administration: Technical Reports and Related Materials

Some general characteristics of thirteen tornadoes that occurred on the afternoon of June 27, 1955 in Scottsbluff County, Nebraska, are related. Two of these caused widespread attention due to their size and their proximity to the cities of Scottsbluff and Mitchell, Nebraska. These two were photographed extensively by residents near their paths. The experience of two men directly beneath one of the two large tornadoes is related.

An Electrophoretic Study Of Egg-White Proteins In Twenty-Three Breeds Of The Domestic Fowl, Charles G. Sibley, Paul A. Johnsgard

Paul Johnsgard Collection

A "conservative" taxonomic character is one which preserves evidence of evolutionary relationships. As Mayr (1942: 296) points out such characters are rare because structures are usually lost quickly when no longer needed and selection seldom neglects a functional structure for very long but continually modifies it as adaptive fitness is increased. However, because different characters evolve at different rates it is possible to find some characters which have changed more slowly than others and to use these as phylogenetic indicators. In birds, for example, plumage color and structure apparently change more rapidly than the skeleton or the muscular system. This …

Good Nutrition For The Family, Ethelwyn B. Wilcox

Faculty Honor Lectures

A BASIC OBJECTIVE of the Faculty Association of UTAH STATE UNIVERSITY, in the words of its constitution, is to encourage intellectual growth and development of its members by sponsoring and arranging for the publication of two annual faculty lectures in the fields of (a) the biological and exact sciences, including engineering, called the Annual Faculty Honor Lecture in the Natural Sciences; and (b) the humanities and social sciences, including education and business administration, called the Annual Faculty Honor Lecture in the Humanities. The administration of the University is sympathetic with these aims and shares the cost of publishing and distributing …

Biotic Succession In A Douglas Fir Forest On Saddleback Mountain (Oregon Coast Range), Jane Claire Dirks-Edmunds

Jane Claire Dirks-Edmunds Documents

This grant proposal, submitted to the National Science Foundation in 1959 by Dr. Jane Claire Dirks-Edmunds, requested funding to continue an ecological study at Saddleback Mountain. Dirks-Edmunds requested $15,570.05 to fund weekly trips with students to the site in order to collect meteorological and synecological data on the forest; she anticipated the project would last two years.

Dr. Dirks-Edmunds graduated from Linfield College in 1937; she returned to teach in the Biology department at Linfield from 1941-1974.

Structural Organization Of Forest Ecosystems, Egolfs V. Bakuzis

Journal of the Minnesota Academy of Science

No abstract provided.