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A Comparison Of The Vibratory Muscle, Tail Epaxial Muscle, And Body Epaxial Muscle Respiratory Activities In Sistrurus Miliarius, Coluber Constrictor, And Natrix Fasciata, Craig Todd Kerins

Master's Theses

The rattlesnake can be distinguished from other types of snakes by its rattling apparatus. Klauber (1956) describes the rattle as an apparatus consisting of varying numbers of three lobed keratin segments. The segments arc arranged in a string by the loose interlocking of the segment lobes. The rattle is attached to tho. snake by the style, the modified terminal vertebra of the rattlesnake. The style is distally branched, forming a rigid core for the proximal rattle segments. A sound, unique to the rattlesnake, is produced when the segments arc vibrated at great frequencies by the snake's posterior tail musculature (Klauber, …

The Effect Of Estradiol On Protein And Nucleic Acids Of The Liver Of Natrix Fasciata, Alex Jordan

Master's Theses

The effects of estradiol on RNA, DNA, and protein concentrations in the liver of Natrix fasciata (southern banded water snake) were investigated. Nucleic acid and protein concentrations were determined spectrophotometrically and expressed as mg/gm wet weight tissue.

Significant increases in both RNA and protein occured 48 hours after a single injection of estradiol. After 72 hours the mean RNA level in estradiol treated snakes had decreased significantly from the 48 hour level. The mean protein level at 72 hours, although lower than the 48 hour level, did not decrease significantly.

Liver DNA concentrations in experimental and control snakes were the …

Phlyctainophora Squali Sp. Nov. (Nematoda, Philometridae) From The Spiny Dogfish, Squalis Acanthias, Dwight R. Mudry, Murray D. Dailey

Harold W. Manter Laboratory of Parasitology: Library Materials

Summary

Phlyctainophora squali sp. nov. is described from 23 female specimens recovered from the subcutaneous tissue of one of 440 Squalis acanthias caught off Los Angeles, California. This finding represents a new host and distribution for this genus. Phlyctainophora is placed in the family Philometridae on the basis of atrophication of vulva and anus, simple mouth, viviparity and location in tissue of fishes. The family diagnosis for Philometridae is amended to include Phlyctainophora which lacks an anterior ovary.

Digenetic Trematodes Of Marine Teleost Fishes From Biscayne Bay, Florida, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

This study includes 111 species of Digenea from 69 of 113 species of teleost fishes examined from Biscayne Bay, Florida. Biscayne Bay represents the reported northern limit along the Atlantic coast for all but 22 of the 111 species. It represents the southern limit for only one, Didymocystis scomberomori. From the known collections reported in the literature, the Digenea from Biscayne Bay appear to consist primarily of a tropical fauna. Species previously known from the Pacific Ocean only are Botulisaccus pisceus and Pseudocreadium scaphosomum. There are 81 new host records.

Two new genera are created: Claribulla (Felloclistomatidae) and …

Ultrasonic Shark Tag Monitoring System Technical Report, Thomas Thorson, Gordon Esterberg, James Johnson

School of Biological Sciences: Faculty Publications

Table of Contents:
Introduction
Description of System
Ultrasonic Tag
Ultrasonic Tag Monitor
Hyrdophones
Receiver-Recorder Unit
Receiver
Recorder
Batteries
Operation
Figures
Distribution List
Documentation Control Data – R & D (DD Form 1473)

New Records And Species Of Neotropical Bark Beetles (Scolytidae: Coleoptera), Stephen L. Wood

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Front Matter, Vol. 10 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 10 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 10 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Front Matter, Vol. 10 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

A Study Of The Weevil Tribe Celeuthetini Of The Solomon Islands (Coleoptera: Curculionidae), Vasco M. Tanner

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Effects Of Photoperiod On The Occurrence Of Symbiotic Rotifers, Nematodes And Branchiobdellids Of Two Orconectid Species Of Crayfishes, Edward Van Metre

Masters Theses & Specialist Projects

Representative specimens of O. immunis and O. pellucidus were brought to the laboratory in order to investigate the influence of light on the occurrence of the symbionts encountered during the preliminary field study. After one week of acclimating the crayfishes they were distributed among environments control chambers that permitted exposure of the hosts and symbionts to 1) continuous light (C.L.), 2) a daily cycle of 12 hours of light and 12 hours of darkness (12L-12D) and 3) continuous darkness (C.D.).

Agricultural Experiment Station News June 1969

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
THE SORGHUM PHYSIOLOGY PROGRAM
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – June 1969
STATION AND RESEARCH BULLETINS PRINTED
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES

Hfh In The News

Henry Ford Hospital Medical Journal

No abstract provided.

Nodular Excision Of Prostatic Carcinoma: Experience With Four Patients, E. E. Steinhardt, A. W. Bohne

Henry Ford Hospital Medical Journal

No abstract provided.

Foliage Production And Consumption In An Oak Forest, David A. Boyce

Masters Theses

No abstract provided.

Bird Populations Of Three Oak Forest Areas In Southern Michigan, Ted B. Gottshall

Masters Theses

No abstract provided.

Habitat And Food Habits Of Eutamias Minimus Scrutator In The Semi-Desert Regions Of Central Washington, Gary L. Hall

All Master's Theses

This paper presents the results of a food habit study on Eutamias minimus scrutator in the sagebrush-bunch grass zone of Central Washington. The major objective of the research is to relate the availability of plant species within the local habitat to the food habit biology of the species.

Breeding Biology Of Cassin’S Finch, Carpodacus Cassinii, F. John Erickson Jr.

All Master's Theses

The present study was undertaken in an effort to increase our understanding of this species' life history, with special reference to the functional significance of delayed plumage development in males. Field studies were conducted throughout the breeding season, and efforts were made to determine whether or not sub-adult males were successful in acquiring mates. In conjunction with consideration of the function of delayed plumage development in males of this species, a general review of this phenomenon has been undertaken in the order Passeriformes.

Review Of Waterfowl In Australia By H. J. Frith, Paul A. Johnsgard

Paul Johnsgard Collection

Our dearth of knowledge concerning Australian waterfowl has, until recently at least, been so severe as to once stimulate Ernst Mayr to write a paper (Emu, 45:229-232, 1946) reminding Australians how little was then known about their native waterfowl. The situation was especially serious in view of the fact that no fewer than six of Australia’s 19 species of indigenous waterfowl represent monotypic genera that are largely or entirely restricted to that continent. Furthermore, these include such phylogenetically significant and taxonomically controversial genera as Anseranas, Cereopsis, Malacorhynthus, and Stictonetta, the last two of which have never been available …

A Cephalometric, Anatomic And Histologic Investigation Of The Effects Resulting From A Heavy Interrupted Orthopedic Force To The Maxilla Of The Macaca Mulatta Monkey, Roger Wayne Triftshauser

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to determine changes that occur in the craniofacial complex, when a heavy interrupted orthopedic force is employed to retract the maxilla in the post puberal rhesus monkey. Cephalometric, histologic and anatomic examinations were utilized to substantiate the findings.

Four female rhesus monkeys were used for experimentation. Two were experimental animals and the other two controls. Cervical retraction with headgear was applied over a period of 313 days and 159 days to the two experimental animals. Forces not exceeding 2.5 lbs. were found most effective.

The findings were as follows:-

1. A total posterior displacement of …

The Intestinal Flora Of Triatoma Protracta Protracta (Uhler) (Hemiptera: Reduviidae) Including New Bacterial Isolation Techniques, Stephen A. Nyirady

Loma Linda University Electronic Theses, Dissertations & Projects

A bacteriological procedure for the removal of the intestinal flora of Triatominae is described. Immersion of Triatoma protracta adults and fifth instar nymphs in 5% aqueous formaldehyde for three hours was sufficient to free the integument of these insects of viable bacteria without penetration into the alimentary tract.

Twenty-two adults and 17 fifth instar nymphs of Triatoma protracta protracta were collected from Neotoma lodges in southern California. Eleven of the 17 nymphs molted into adults in the laboratory. With the use of a 2% peracetic acid sterilized custom built plastic germ-free isolator the Triatoma were dissected and various sections of …

The Biological Properties Of Pseudomonas Aeruginosa Bacteriophage 7v, Shirley Phillips Schnider

Dissertations and Theses

The present study was undertaken to define the standard conditions for growth of bacteriophage 7V on its host Pseudomonas aeruginosa strain PS-7 and to determine the factors which affect the quantity and quality of plaques in the plaque count assay. Observations from the single-step growth experiment and single-burst experiment are also included.

Plaque count assays were performed under various environmental conditions. Conditions were selected as "standard" if they yielded: 1) relative maximum number of infective centers per ml of stock 7V phage, 2) clear, haloed plaques at least 2.0 mm in diameter, and 3) reproducible assays limited only by the …

Seasonal Variations Of Certain Air-Borne Allergens Of Fungal Origin, Kathleen Dillon

Biology ETDs

In this study, the number of viable mold spores trapped by a power-assisted sampling device was counted to determine the number of spores per cubic foot of air. Mold colonies were then sub-cultured and identified to genus.

Meteorological data for the times of sampling and for the entire year were furnished by the Environmental Sciences Service Administration.

It was determined that certain spore types did show a seasonal variation, with different types predominating at different times of the year.

Certain local climatic conditions prevailing at the time of sampling tended to select for the predominance of a particular type of …

Measurement And Affect Of Ecologically Significant Factors Within A Thermally-Stratified Lake On Bacterial Utilization Of A Humic Acid, Herbert E. Schmidt

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Herbert E. Schmidt on May 19, 1969.

The Response Of Atriplex Canescens And Eurotia Lanata To Sub-Freezing Temperatures, William C. Fry

Biology ETDs

Frost hardiness was investigated in seedlings of Atriplex canescens and Eurobia lanata.Exosmosis, of electrolytes and reduction of triphenyl tetrazolium chloride (T.T.C.) by tissue exposed to sub-freezing temperatures were investigated as objective methods for determining the frost killing temperature of the seedlings as compared to actual seedling survival. The relationship of a seedling age and the influence of a brief preconditioning at a reduced temperature were studied as to their effect on the frost killing temperature. The seedling age best suited to the investigation of the influence of temperature and photoperiod preconditioning on the frost killing temperature was determined. The influence …

The Effect Of Stable Yttrium Concentration On The Distribution And Excretion Of Inhaled Radioyttrium In The Rat, Walter Jay Wenzel

Biology ETDs

These investigations were designed to assess the alterations in tissue distribution and excretion of inhaled radioyttrium in rats as a function of various concentrations of stable yttrium. One experiment utilized ⁹¹Y and three experiments utilized ⁸⁸Y as the radioactive isotope. Stable yttrium was added to achieve various ratios of radioactive to non-radioactive yttrium in the inhaled particles. In experiment 1, Sprague-Dawley female rats were exposed by inhalation of aerosolized carrier-free ⁹¹Y and by inhalation of aero­solized ⁸⁹Y labeled with ⁹¹Y. Other rats were injected intravenously with carrier-free ⁹¹Y (ionic) or with various concentrations of …

Reproduction In Cnemidophorus Inornatus And C. Neomexicanus, James L. Christiansen

Biology ETDs

Cnemidophorus inornatus, a species composed of males and females, is closely related to Cnemidophorus neomexicanus, a parthenogenetic species. The two occur more or less sympatrically but differ in several factors which may provide either species with an advantage. Preference for different microhabitats and antagonistic behavior between the two species tend to prevent interspecific contact and interbreeding. Disruption of the habitat may destroy these isolating mechanisms and sterile hybrids may result. Adults and juveniles of both species are active from mid-April to mid-August but juveniles are more active than adults during the colder months. The reproductive cycle of males begins in …

The Effect Of Coxiella Burnetii Parasitism On The Fertile Chieken Egg Injected With Glucose-14c, Oswald G. Baca

Biology ETDs

The effect of parasitism by the rickettsia Coxiella burnetii on the chicken embryo was studied by extracting rickettsiae separated from infected yolk sacs and examining the extracts for radioactivity arising from D-glucose-U-¹⁴C injected into the embryonated eggs. The rickettsiae were separated from the yolk sacs with a cation exchange resin and differential centrifugation. The purified rickettsiae were then extracted for various components. The extracts 4 were subjected to radioactivity determination with an internal sample liquid scintillation counter. The extracts were also chromatographed and superimposed on X-ray film for radioautography. No significant differences in radioactivity were found be tween …

The Effects Of Solubility On The Deposition And Elimination Of Three Cerium Compounds In Mice Following Exposure By Inhalation, Barbara Nylund Morgan

Biology ETDs

Ce144 is an important radioisotope of cerium because it is formed as the result of uranium fission. Consequently, it is a predominant fission product in a reactor inventory after a period of sustained reactor operation as well as a major isotope released following nuclear accidents. The energy released during a nuclear explosion is sufficient to bond 144Ce to several anionic species depending upon the immediate environment. Among those anions are included citrates, oxides, halides and inorganic debris such as clay particles from earth or structural materials. Because the major route of entry of contaminated materials is by inhalation, it is …