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Avian Thermoregulation And Its Significance In Starling Control, Robert G. Schwab, Vincent F. Schafer

Vertebrate Pest Conference Proceedings: 5th (1972)

The ability of birds and mammals to maintain a relatively stable internal body temperature while under a considerable range of ambient environmental temperatures results in distinct ecological and physiological advantages. A constant body temperature facili-tates the activity of homeothermic (warm-blooded) animals in cold environments because the many temperature-dependent physiological and biochemical processes of the body are un-impeded. Conversely, poikilothermic (cold-blooded) animals lack the ability for precise thermoregulation and can function at top physiological efficiency only when ambient environmental temperatures are within a rather narrow optimum range. Homeothermia is accomplished by a system of physiological feed-back mechanisms which maintain a thermal …

Agricultural Experiment Station News March 1972

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
STAFF PROMOTIONS - 1972
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – February 1972
BULLETINS PRINTED
ABSTRACTS

The Prairie Naturalist Vol. 4, No.1. March, 1972

The Prairie Naturalist

EDITORIAL: Advertising by Power Suppliers ▪ William A. Buresh

FIRST FLOWERS OF TREES, SHRUBS AND VINES IN THE FARGO, NORTH DAKOTA AREA ▪ O. A. Stevens

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA—1971 ▪ Robert N. Randall

ENVIRONMENTAL LEGISLATION IN NORTH DAKOTA—EXPECTATIONS AND REALITIES ▪ Paul B. Kannowski

SEASONAL NOTES ON PLANKTON ALGAE OF EAST STUMP LAKE, NORTH DAKOTA ▪ Dean W. Blinn

A SKUNK WITH A GLASS COLLAR ▪ Peter W. Rakowski

SPRING MIGRATION OF BIRDS IN NORTH DAKOTA IN 1971 ▪ Paul F. Springer, Douglas H. Johnson and John T. Lokemoen

NOTE

Red throated loon observed on Lake Ashtabula, …

Introduction: Transactions Of The Nebraska Academy Of Sciences, H. M. Cox

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

TRANSACTIONS of the Nebraska Academy of Sciences

Contents

ESTABLISHMENT OF TRANSACTIONS

NEBRASKA ACADEMY OF SCIENCES, INC. Officers

INSTRUCTIONS TO CONTRIBUTORS ELIGIBILITY

DEADLINE FOR PAPERS

ABSTRACTS

MANUSCRIPT FORM

ILLUSTRATIONS

REPRINTS

A CAPSULE HISTORY OF THE NEBRASKA ACADEMY OF SCIENCES

OBJECTS

MEETINGS

MEMBERSHIP

SECTIONAL ORGANIZATION

PUBLICATIONS

Water Resources News, Volume 4, No. 3, March 1972

Water Current Newsletter

1972 Annual Meeting of UCOWR
Summer Short Course Planned
Simulation of Water Resources Systems
Institute on Applications of Stochastic Methods in Civil Engineering
Institute on River Mechanics
Water Resources Systems - Short Course
International Symposium on Mathematical Modelling Techniques in Water Resources Systems
Seminar on Advances in Practical Hydrology
NWRA Resolutions
EPA to Be Advised By Experts on Sewage Plant Construction
GAO Questions EPA Insistence on Clean Waste Water
Study on Water Subsidies
EPA Bias for Sewage Hinders Farm Cleanup
Land Use Planning
Rural Development Act (HR 12931) Passed by House
Saline Water Bill Goes to House
1973 USGS Budget …

Opening Remarks - Fifth Vertebrate Pest Conference, Rex E. Marsh

Vertebrate Pest Conference Proceedings: 5th (1972)

It is a pleasure to welcome you to the Fifth Vertebrate Pest Conference. It has been 10 years since the first Conference was held in Sacramento in February of 1962. The attendance has grown at each successive conference and, from the looks of the audience this morning, we shall surpass all previous records. It would, however, be wrong to judge the significance of this conference on attendance alone, for we are equally or more concerned with the quality of the conference and its ultimate contribution to the specialized area of wildlife management. The Conference is sponsored by the California Vertebrate …

The Extending Of Cotton Rat Range In California - Their Life History And Control, Dell O. Clark

Vertebrate Pest Conference Proceedings: 5th (1972)

Cotton Rats (Sigmodon hispidus eremicus Mearns) are known to have reached the Imperial Valley in 1921 from the Colorado River along canal banks. Recently (1967-69) cotton rats were found distributed throughout the irrigated portion of the Imperial Valley, Imperial County, California. Limited crop damage has occurred and is described. Life history information is included. Control measures are listed.

Echinococcus Vogeli Sp. N. (Cestoda: Taeniidae) From The Bush Dog, Speothos Venaticus (Lund), Robert L. Rausch, J. J. Bernstein

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Echinococcus vogeli sp. n., from a bush dog, Speothos venaticus (Lund), captured in the Province of Esmeraldas, Ecuador, differs morphologically from the three species of Echinococcus recognized as valid. E. vogeli sp. n. is distinguished from E. granulosus (Batsch 1786) by its larger rostellar hooks, different proportions of the strobila, tubular, sac-like gravid uterus, and different arrangement of the female genital ducts. from E. multilocularis Leuckart 1863 by its larger rostellar hooks, different proportions of the strobila, position of genital pore, and greater number of testes; from E. oligarthrus (Diesing 1863) by different proportions of the strobila, position of genital …

Eutrophication Factors In North Central Florida Lakes, H. D. Putnam, Patrick L. Brezonik, Earl E. Shannon

United States Environmental Protection Agency: Publications

A small Florida lake has been receiving a regimen of nutrient addition equivalent to 500 mg/m³-yr N and 43 mg/m³-yr P since 1967. Data has been accumulated through 1969. The effect on the lacustrine ecosystem of various biogenes includes production by primary producers, species diversity of plankton and certain production estimates at the secondary trophic level using natural populations of planktivorous fish. Plankton production using isotopic carbon is ca. 58 grms/m²-yr; Species diversity is slowly changing to a mixed chlorophycean and yellow-green. Biomass of benthic green filamentous types has increased slightly. Nutrient addition has …

Torrent Ducks Of The Andes, Paul A. Johnsgard

Paul Johnsgard Collection

Throughout the world there is probably no more rigorous environment for waterfowl than that provided by the Andean streams in South America. Rushing down the mountains from an altitude of 18,000 feet or more, tumbling over precipices, the streams eventually merge and grow into such giants as the Orinoco, Amazon, and Rio de la Plata on the Atlantic slope, or empty direct into the Pacific on the west side. In the intermediate elevations, mainly between 5,000 and 10,000 feet, a remarkable duck, fittingly called the torrent duck (Merganetta armata) makes its home among the rapids and cataracts. This …

Ec72-195 Producing Alfalfa In Nebraska, W. R. Kehr, W. J. Moline

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 72-195: Producing Alfalfa in Nebraska

Ec72-218 1972 Nebraska Beef Cattle Report

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 72-218 contains the 1972 Nebraska Beef Cattle Report.

Metabolic Pathways Of Malate Enantiomers, Charles P. Anderson, Stanley Dagley, David Hopper

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

A strain of Pseudomonas non-fluorescens has shown to metabolize certain phenolic compounds through a pathway containing D-malic acid. This same bacterium is able to oxidize D-malate slowly when it is used as the sole carbon source, but is unable to grow on it. Possible pathways and explanations of this phenomena are postulated.

In recent years the metabolism of malate enantiomers in various species of Pseudomonas has been the subject of considerable investigation. This results from the fact that the microbial metabolism of the dihydroxphenol, gentisic acid, has been shown to include D-malate in the metabolic chain (Hopper, Chapman, and Dagley, …

Use Of Mushrooms In The Biology Laboratory, Philip J. Arnholt

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Students in high school and college biology courses are easily motivated if they are presented with the proper materials. Obtaining and organizing these materials is the problem of the teacher. This can be quite a task for a teacher who has five or six sections of 20-30 students every day. Materials which can command the interest of the student and are easily prepared are, therefore, very desirable.

I have found both high school and college students in biology and botany to be intensely interested in mushrooms if the material is presented properly. Unfortunately, most high school and college laboratory manuals …

The Mechanism Of Secretion Of Fluid And Electrolytes In Salivary Glands, R. P. Suddick, F. J. Dowd, I.L. Shannon

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

It has been realized since Ludwig's original studies that the mechanisms which underlay the secretion of saliva involve some type of active process in the gland (Ludwig et al., 1851). It was demonstrated in those early experiments that the submaxillary ductal pressure in dogs will rise above arterial pressure when the duct is occluded during active secretion. Since then, experiments carried out in a wide range of epithelial tissues which are capable of transcellular transfer of large volumes of fluid and electrolytes (e.g., frog skin, toad bladder, gall bladder, small intestine, etc.) have provided ample evidence that water transport …

Use Of Hydropterldales In Teaching Botany, Dale D. Sutton, Robert C. Lommasson

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

In most instances the Hydropteridales receive little if any attention in the high school biology class or general botany class at the college level. Information regarding these plants may even be rather sketchy in the college level morphology class and morphology text books. Special emphasis should be used in studying this group because they illustrate the following points. Their general morphology is unique in many respects and their habitat is unusual among the ferns. These plants are very good for illustrating the relation between physiology and morphology. The sporocarps produced in this group are unique among all plants. Because of …

Identification Of Experiences In Applied Biological Science And Agribusiness Of Seventh Grade Students, Roy D. Dillon, University Of Nebraska W. Walker

Department of Agricultural Leadership, Education, and Communication: Faculty Publications

In a study to identify the applied biological science-oriented experiences of seventh grade students and to describe student aspirations for future study of applied biological and agribusiness subjects, a random sample of 1,286 7th-grade students was selected in Nebraska. The sample represented l0.l% of the 7th-grade students in Nebraska in 1970, and was selected by drawing a 5% random sample of schools within each of 8 mutually-exclusive class groupings as defined by the Nebraska State Department of Education.

It is clearly evident from the results described that 7th-grade students in Nebraska have gained considerable exploratory experiences through formal and informal …

The Structure Of An Ornithine-Containing Lipid From Thiobacillus Thiooxidans, Herman W. Knoche, Jessup M. Shively

Department of Biochemistry: Faculty Publications

The structure of an ornithine-containing lipid from Thio-bacillus thiooxidans

has been elucidated. Methanolysis of

the lipid released methyl cis-ll,lZ-methylene-Z-hydroxyoctadecanoate.

Acid hydrolysis of the residue yielded ornithine

and a mixture of fatty acids, the major components of

which were 3-hydroxyhexadecanoic and 2-hexadecenoic

acids. Identification of the 3-hydroxy fatty acid was based

on the thin layer chromatographic mobilities of the acid, its

methyl ester, the methyl ether, and acetate derivatives of its

methyl ester, on the equivalent chain lengths of the derivatives

of the acid and the acid obtained by oxidation of the

natural acid with permanganate, and on mass spectral studies. …

Thermal, Turbidity, And Ph Conditions Of The Upper White River: Sioux And Dawes Counties, Nebraska., Steve Cassells

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Research indicates inverse correlations between pH and turbidity when the sediment is primarily of an organic nature. Siliceous sediment does not follow the same curve. Definite influences of cultivated lands on water turbidity are shown in the lower portion of the study area. Temperatures vary considerably within short distances, with the cause only speculative at this time. The study gives basis for the inferences on preferred habitats of trout and catfish.

A Review Of The Work Of The Section On History And Philosophy Of Science - Past, Present, And Planned, Harold G.O. Holck

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

FOUNDING AND ACTIVITIES

Recently 1 have had an opportunity to examine the programs, reports and records of the Section on the History and Philosophy of Science of the Nebraska Academy of Sciences. So far no historical report on this Section has appeared, although mention should be made of the excellent "Capsule History of the Nebraska Academy of Sciences" prepared by Dr. Raymond J. Pool and distributed to the membership of the Academy at the annual banquet held on April 22, 1955. Accordingly, 1 has assembled a number of facts concerning the origin, growth, and development of the Section.

The History …

Follicular Development In Heifers Infused With Follicle-Stimulating Hormone, D. B. Laster

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Follicle-stimulating hormone from different species has been used to increase ovulation and calving rates in cattle, injections proving to be most successful when given during the late follicular phase of the oestrous cycle or in combination with progestagens (Willett & Buckner, 1953; Bellows, Anderson & Short 1969). Some investigations have resulted in substantial increases in ovulation and calving rates, but there is usually a high degree of variation in ovarian response. Patterns of follicular growth and atresia have been studied in cattle (Rajakoski, 1960) and hypotheses have been suggested to explain how exogenous FSH stimulates follicle growth in relation to …

Ecological Significance Of Vegetation To Northern Pike, Esox Lucius, Spawning, D. B. Mccarraher, Robert E. Thomas

Nebraska Game and Parks Commission: Staff Research Publications

Since 1955, information has been collected from six Nebraska sandhill lakes to evaluate northern pike spawning success based on type of aquatic vegetation preferred by pike for spawning. The lakes, all located in Cherry County, were Big Alkali, Watts, Hackberry, Cottonwood, Shell, and Pelican. Several investigators have commented that pike year class strength is closely related to type and abundance of aquatic vegetation present in a lake (Clark and Steinbach, 1959; Forney, 1967). Documented information on spawning habitats is scant other than vague references to pike spawning over submerged vegetation or inundated meadows.

A Multivariate Analysis Of Systematic Relationships Among Populations Of The Short-Tailed Shrew (Genus Blarina) In Nebraska, Hugh H. Genoways, Jerry R. Choate

University of Nebraska State Museum: Mammalogy Papers

The genus Blarina (Mammalia: Soricidae) is represented in Nebraska by two well-differentiated, geographically exclusive phena that generally have been regarded as subspecies. Field studies conducted along their zone of contact resulted in the collection of representatives of both phena at each of five localities. Cluster analysis of distance matrix readily separated reference samples of the phena as well as test samples from near the zone of contact. A three-dimensional projection of the specimens onto their first three principal components, together with a discriminant function analysis, served further to elucidate the degree of differentiation among the phena and to confirm that …

Water Resources News, Volume 4, No. 1, January 1972

Water Current Newsletter

House Hearings on Water Pollution Control
New Publications Available from the NWRRI
Coastal Zone Management
Ground Water Pollution
Economic Disclocation from Pollution Control
EPA Regulations
Waste Treatment Plant Guidelines
WRC Policy on Revision of Regional and River Basin Plans
Water Resources Council Outlines New Principles and Standards
Experts Advise on EPA on Sewage Plant Construction
Pollution Prevention Guide for Cottage Owners
Desalting Plant for Orange County, California
US Is Accelerating Desalting Programs
Farm Cleanup is Hindered by EPA Bias for Sewage
Sources Sought

Oxidation Of Phenylpyruvate By Sweetclover Peroxidase, T. A. Jaynes, Francis A. Haskins, H. J. Gorz

Department of Agronomy and Horticulture: Faculty Publications

Sweetclover (Melilotus alba Desr.) contains a soluble enzyme which oxidizes phenylpyruvate with the addition of either a natural cofactor or Mn²⁺ and dichlorophenol. The final product of oxidation has not been identified. Phenylpyruvate oxidation is catalyzed also by horseradish peroxidase, and the oxidation is enhanced by the natural cofactor from sweetclover or Mn²⁺ and dichlorophenol. After fractionation of sweetclover homogenates by DEAE-cellulose chromatography, two peaks of peroxidase activity (pyrogallol as substrate) are apparent; both peaks also oxidize phenylpyruvate. A third peak, specific for phenylpyruvate oxidation, also is apparent. The Cu/cu and B/b allelic pairs, which influence phenolic …

Field Tests Of Insecticides Against Plagiotrochus Cornigerus, E. E. Burgess, H. E. Williams, R. E. Wilkinson, E. A. Heinrichs

Department of Entomology: Faculty Publications

Pin oaks, Quercus palustris Muenchhausen, are one of the important shade trees in west Tennessee. The horned oak-gall wasp, Plagiotrochus cornigerus Osten Sacken, causes a deformation of the twigs and leaves of the tree. In 1965, K. E. Stewart, an entomologist at the University of Toronto, Ontario, Canada, injected pin oaks with systemic insecticides to evaluate their effectiveness in controlling the leaf gall and the stem gall caused by the horned oak-gall wasp. He found oxydemeton-methyl ec at a rate of 25 g AI/in. diameter and technical demeton at a rate of 3 g AI/in. diameter were the best materials …

Chorion Characteristics Of Sod Webworm Eggs, Ellis L. Matheny Jr., E. A. Heinrichs

Department of Entomology: Faculty Publications

The egg chorion was investigated for 15 species of sod webworm moths (Lepidoptera: Pyralidae: Crambinae) collected in Tennessee. Liquid plastic was used for surface printing of chorion sculpturing. Scanning electron micrographs were utilized in construction of a taxonomic key to eggs of the Crambinae species studied and the characteristics illustrated.

Population Estimates Of Breeding Birds In North Dakota, Robert E. Stewart, Harold A. Kantrud

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Reasonably accurate measurements of breeding bird populations on large land areas are needed if the overall effects of man's impact on the environment are to be measured and understood. Through use of these data, we will be able to detect the average response of these populations to generalized environmental changes caused by diverse and widespread land-use practices. As this kind of information becomes available, it will serve as the basis for developing appropriate management programs for the purpose of maintaining or increasing breeding bird populations.

Form And Level Of Coumarin In Deer's Tongue, Trilisa Odoratissima, Francis A. Haskins, H. J. Gorz, R. C. Leffel

Department of Agronomy and Horticulture: Faculty Publications

Fresh leaves of deer’s tongue contain large quantities (more than 10% of the dry weight, in some cases) of o-hydroxycinnamic acid (o-HCA). Both cis- and trans-o-HCA are present, and both isomers exist in the fresh tissue predominantly as glucosides. Cured deer’s tongue leaves contain relatively high levels of coumarin and lower amounts of o-HCA glucosides. It is probable that during the curing process cis-o-HCA glucoside is hydrolyzed by an endogenous β-glucosidase, and that the liberated cis-o-HCA lactonizes spontaneously to form coumarin.

Detection Of Energetic Heavy Ions, Robert Katz, S. C. Sharma, Mehdi Homayoonfar

Robert Katz Publications

The delta-ray theory of track structure, applied earlier to such 1-or-more hit detection systems as the inactivation of dry enzymes and viruses, the NaI(Tl) scintillation counter, and nuclear emulsion, is extended to the silver activated phosphate glass dosimeter, the LiF thermoluminescent dosimeter, the creation of free radicals in solid biological substances, solid and liquid organic scintillators, and the ferrous sulfate (Fricke) dosimeter. The response of these systems to both gamma-rays and heavy ions is characterized by two parameters: 1) D_γ³⁷, the dose of gamma-rays at which 37% of the sensitive elements remain unaffected by the radiation, and …