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Results Of The Alcoa Foundation-Suriname Expeditions. Vii. Records Of Mammals From Central And Southern Suriname, Stephen L. Williams, Hugh H. Genoways, Jane A. Groen

University of Nebraska State Museum: Mammalogy Papers

The occurrence of three species of mammals previously unknown in Suriname is documented. The new taxa recorded include Vampyrops aurarius, Vampyrops lineatus, and Natalus tumidirostris. Additional information is provided on Centronycteris maximiliana, Sigmomys alstoni, Zygodontomys brevicauda, and Cavia aperea from Suriname.

Analysis Of Estrogen And Progesterone Binding Sites In Cytosol And Nuclei Of 7,12-Dimethybenz (A) Anthracene-Induced Rat Mammary Carcinoma: Hormone-Dependent Vs. Hormone Independent Tumor Populations, Danny Michael Burns

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 requirement for the Degree of Master of Science in Biology by Danny Michael Burns on September 6, 1983.

Modification Of A Rapidly Transported Protein In Regenerating Nerve, Bruce Tedeschi, David L. Wilson

Biology Articles and Papers

From 1 to 28 days after frog sciatic nerve damage, dorsal root ganglia were incubated with [35S] methionine, and the labeled, rapidly transported proteins at various points along the nerve were analyzed on two-dimensional gels. The results show a dramatic increase in the labeling of a protein, which we have designated as A25, only after the arrival of the rapidly transported proteins at regenerating nerve tips. This effect is first seen 3 to 5 days after injury. On gels from regenerating nerves, A25 appears as a series of intense spots with an apparent molecular weight of 70,000. A25 is retrogradely …

Identification Of Four Complementary Rna Species In Akabane Virus-Infected Cells, Asit K. Pattnaik, G. Abraham

School of Veterinary and Biomedical Sciences: Faculty Publications

The analysis of RNA extracted from purified Akabane virus demonstrated the presence of three size classes of single-stranded RNAs with sedimentation coefficients of 31S (large, L), 26S (medium, M), and 13S (small, S). Molecular weights of these RNA species were estimated to be 2.15 x 10⁶,1.5 X 10⁶, and 0.48 x 10⁶ for the L, M, and S RNAs, respectively. Hybridization analysis involving viral genomic RNA and RNA from virus-infected cells resulted in the identification of four virus-specific cRNA species in infected cells. These cRNAs were found to be nonpolyadenylated by their inability to bind …

The Role Of Erythropoietin In The Anemia Of Chronic Renal Failure, N. Kevin Krane

Henry Ford Hospital Medical Journal

The major factors responsible for the anemia of chronic renal failure are decreased erythropoietin (Ep) production, the presence of inhibitors of erythropoiesis, blood loss, and hemolysis. Ep, which is produced in the kidney, probably exerts its effect on the colony-forming units of the erythrocyte. Ep levels fall with worsening renal function (creatinine clearances in the range of 2-40 ml/min). but they rise to their highest levels in the immediate predialysis period, probably due to severe ischemia of both renal and extrarenal production sites. When patients are begun on hemodialysis, Ep levels fall, and the hematocrit rises. Erythropoietin therapy in the …

Federal Government Assaults Animals On Wildlife Refuges

Close Up Reports

The welfare of America's wildlife and refuges is being sold for economic gain and recreational pleasure to hunters, trappers, and commercial developers. To date, there are 414 refuges composed of over 86 million acres stretching from the Arctic to the Florida Keys and from Maine to American Samoa. Almost all of these refuges have been touched in some way by natural gas exploration, predator control, pesticides, and commercial farming, ranching, and lumber industries. Over one half of all refuges are open to either hunting or trapping...or both.

All laws and regulations concerning activities on wildlife refuges stipulate that there must …

Review Of "The Nature And Origin Of The Biological World" By E. J. Ambrose, John B. Jenkins

Biology Faculty Works

No abstract provided.

Fish Names Of Wallis Island (Uvea), Karl H. Rensch

Pacific Studies

No abstract provided.

Caroline Ralston's Review Of Harry Morton's The Whale's Wake, Caroline Ralston

Pacific Studies

No abstract provided.

The Prairie Naturalist Volume 15, No. 3. September 1983

The Prairie Naturalist

Paul B. Kannowski, Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

WINTER DISTRIBUTION AND HABITAT USE BY MULE DEER AND WHITE-TAILED DEER IN SOUTHEASTERN MONTANA ▪ J. E. Swenson, S. J. Knapp and H. J. Wentland

HISTORY AND STATUS OF EUROPEAN FALLOW DEER (Dama dama dama) AT ARGONNE NATIONAL LABORATORY, ILLINOIS ▪ G. G. Gray

REPRODUCTIVE CHRONOLOGY OF GREATER PRAIRIE CHICKENS IN MINNESOTA AND RECOMMENDATIONS FOR CENSUSING AND NEST SEARCHING ▪ W. D. Svedarsky

SUMMER BIRD USE OF A STATE-OWNED HUNTING AREA IN NORTHWESTERN ILLINOIS ▪ M. W. Brown

EVALUATION OF INTRODUCED RUFFED GROUSE IN WESTERN …

The Distribution And Morphology Of Fucus Distichus In An Estuarine Environment And The Effect Of Selected Ions On The Uptake Of Inorganic Carbon And Nitrate, Dale Howard Robinson

Dissertations and Theses

The morphology, distribution, and habitat of dwarf and normal forms of Fucus distichus in Nehalem Bay were examined. The dwarf form lacked the holdfast and sexual structures of the normal form and was more highly branched. Examples of the dwarf form were found growing as outgrowths of fragmented normal forms indicating that both forms are the same species. The normal form occurred attached to rocks near the mouth of the bay in waters of oceanic salinity. The dwarf form occurred as a free-living form in the salt marshes and in waters of lower salinity. These observations suggested that the occurrence …

Foraging Ecology Of Temperate-Zone And Tropical Woodpeckers, Robert A. Askins

Biology Faculty Publications

The foraging behavior of 11 species of woodpeckers in Guatemala, Maryland, and Minnesota was studied in order to test the seasonal stability hypothesis. This hypothesis predicts that specialization and species richness should be no greater for tropical wood-excavators than for those in the temperate zone because wood-excavators in both regions are buffered against seasonal change. Niche breadth values for six variables that describe foraging methods and perches were calculated by two methods. Unweighted niche breadth values were similar for tropical and temperate woodpeckers for all variables except foraging techniques; in this case the temperate species are more specialized. With weighted …

Areographic Representation Of Faunal Characteristics Through A "Second Order" Relational Approach, Charles H. Smith

DLPS Faculty Publications

Areographic analysis has traditionally depended on primary data consisting of location-specific tallies of presence or absence of given forms. In the present work, an alternate manner of representing distributions is suggested. Regional units are first established, and presence and absence of the forms under consideration in these units is noted. The relation of the biota at any given point location to all others is then established through examination of the former's characteristics of inclusion in the latter. This is accomplished by detailing regional level trends of inclusion and setting up a "second-order" distribution of associations. Two kinds of descriptive information …

Binding Activity Of The Tubulin-3h-Colchicine Complex, Menjor Tino Unlap

Masters Theses & Specialist Projects

Microtubules, isolated from bovine brain, were used to study the effect of ultraviolet radiation on the tubulin-³H-colchicine complex and the polymerizing ability of this complex to intact and disrupted microtubules. Dissociation of this complex was observed upon ultraviolet irradiation and continued to progress as exposure time increased. The binding of this complex to intact microtubules prior to irradiation did not seem to enhance its stability to ultraviolet radiation. There was a significant difference observed at the 0.05 level between the binding of the tubulin-³H-colchicine complex to microtubules in mechanically disrupted and control samples. Statistically, there was …

Kentucky Warbler (Vol. 59, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

The Suprapopulation Dynamics Of Acanthocephalus Dirus In A Definitive Host, Etheostoma Squamiceps, & Two Intermediate Hosts, Lirceus Fontinalis & Gammarus Minus, Mary Weimorts

Masters Theses & Specialist Projects

The suprapopulation dynamics of Acanthocephalus dirus were studied in the definitive host, Etheostoma squamiceps, and two intermediate hosts, Lirceus fontinalis and Gammarus minus, from Lick Creek, Warren County, Kentucky. The study was conducted from December 1981 through January 1983. A total of 448 isopods, L. fontinalis, was examined for larval A. dirus and 9 (2.01%) were infected. Infected isopods were observed from September through December 1982. There was no correlation between the presence of larvae and lack of pigmentation. A total of 441 amphipods, G. minus, was examined. Of these, 21 (4.76%) were infected. Infected amphipods …

The Role Of Adrenomedullary Hormones In Survival Of The Adrenalectomized Mongolian Gerbil, Meriones Unguiculatus, Carol B. Ussery

Master's Theses

Thee effects of adrenalectomy and catecholamine replacement therapy on survival were studied in Meriones unguiculatus, the Mongolian gerbil. Adrenalectomized gerbils that received epinephrine lived significantly longer than the controls untreated adrenalectomized gerbils) and animals that received either norepinephrine or a combination of epinephrine and norepinephrine. Results also indicated that these epinephrine-treated animals lost more depot fat that either controls or other groups receiving treatment. In spite of the short survival benefit given by epinephrine, the mechanisms governing the critical adrenal dependency in this species remain unknown.

The Role Of The Adrenal Cortex In Fat Metabolism Of Meriones Unguiculatus, The Mongolian Gerbil, Saffia Baggia

Master's Theses

The effects of adrenalectomy and corticoid replacement therapies on survival, weight loss, depot fat and blood free fatty acid were studied in Meriones unguiculatus, the Mongolian gerbil. Adrenalectomized gerbils that received cortisol and aldosterone lived significantly longer and lost significantly more weight than the controls (adrenalectomized gerbils not receiving any treatment) and the sham-operated groups. Cortisol and aldosterone treatment were also effective in mobilizing significantly greater amounts of depot fat into free fatty acid. Cortisol and aldosterone treated groups had significantly less blood free fatty acid than the control and the sham-operated groups.

Thermal Requirements For Emergence Of Overwintered Sorghum Midge (Diptera: Cecidomyiidae), Frederick P. Baxendale, G. L. Teetes

Department of Entomology: Faculty Publications

Emergence of overwintered sorghum midges, Contarinia sorghicola (Coquillett), was monitored during 1979, 1980, and 1981. Differences in emergence times and distributions among years was a function of soil temperature and rainfall. A heat unit accumulation model incorporating a rainfall adjustment factor was developed which described adult emergence in the spring. Adult midges initiated emergence after accumulating 431 centigrade heat units (based on mean daily to-cm soil temperatures starting 1 April) above a threshold temperature of 14.8°C, whereas, 679 and 977 heat units were required for 50 and 95% emergence, respectively. Sorghum midges that overwintered in johnsongrass spikelets emerged after similar …

A Survey Of Glycosphingolipids In The Human Aorta: Their Relationship To Glycosphingolipids Of Blood And To Atherosclerosis, John L. Nappier

Dissertations

The four major glycosphingolipids, glucosyl ceramide, lactosyl ceramide, galactosyl lactosyl ceramide and globoside were isolated from both diseased and normal tissue from human aorta by solvent extraction followed by solvent partitioning and column chromatography. The levels of each were then determind quantitatively by high pressure liquid chromatography (HPLC) after derivatization. The individual glycosphingolipids were isolated by semi-preparative HPLC and the fatty acid composition of each was determined, after methanolysis, by gas chromatography.

In the diseased tissue, the amount of glycosphingolipid as well as the amount of crude lipid increased relative to the normal tissue. The relative amounts of cerebrosides increased …

Factors Influencing Adult Emergence From Diapausing Sorghum Midge, Contarinia Sorghicola (Diptera: Cecidomyiidae, Frederick P. Baxendale, G. L. Teetes

Department of Entomology: Faculty Publications

Sorghum midge, Contarinia sorghicola (Coquillett) diapause was terminated in the laboratory, and factors affecting adult emergence from diapausing larvae were investigated. Temperatures in the range from 20 to 30°C were optimum for diapause termination and adult emergence. Diapausing larvae exposed to moist conditions at 30°C began to emerge as adults after 12 days of incubation. Based on adult emergence rates per day, an emergence threshold temperature was estimated to be 14.8°C. Exposure to 12 to 13 days of continuous moisture at 30°C was essential for diapause termination and adult emergence. Moisture acted to initiate diapause termination, but diapausing larvae were …

Biosynthesis And Degradation Of Storage Protein In Spores Of The Fungus Botryodiplodia Theobromae, Gary Petersen, Kurt Dahlberg, James L. Van Etten

Department of Plant Pathology: Faculty Publications

Muiridin, a spore-specific protein of the fungus Botryodiplodia theobromae, comprises about 25% of the mature pycnidiospore protein. It has an apparent molecular weight of 16,000 to 17,000 and is rich in glutamine, asparagine, and arginink. Muiridin is synthesized in developing spores via a precursor with an apparent molecular welght of 24,000. Two other polypeptides present in young developing spores with apparent molecular weights of 18,000 and 15,000 are immunologically related to muiridin. We propose a pathway for muiridin synthesis. Muiridin is actively degraded during the germination of spores from 30-day old cultures. This degradation is independent of exogenous amino …

Full Issue, Vol. 7

Great Basin Naturalist Memoirs

No abstract provided.

Behavior, Habitat Use, Food, And Foraging Efficiency Of Three Species Of Sympatric Merons (Egretta), Donald M. Kent

USF Tampa Graduate Theses and Dissertations

The foraging ecology and behavior of Little Bule Herons (Egretta caerulea), Snowy Egrets (E. thula), and Tricolored Herons (E. tricolor) was studied from October 1981 to August 1982 in Old Tampa Bay and Safety Harbor, Hills borough and Pinellas Counties, Florida. Little Blue Herons foraged exclusively by walk-slow and employed head sways or tilted during 75% of the observations. Snowy Egrets used stand, walk-slow, disturb-and-chase, and foot-stirring. Tricolored Herons used stand, walk-slow, disturb-and-chase, ana stand-and-chase. Tricolored Herons using stand-and-chase stood near shore facing open water and when prey was spotted they ran or hopped in the direction of the prey …

The Effect Of Hurricane Allen On The Near-Shore Vegetation Of South Padre Island, Frank W. Judd, Sammie L. Sides

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

The effect of Hurricane Allen (Aug. 10, 1980) on the near-shore vegetation of South Padre Island was assessed by comparing data obtained in line transects before and after the hurricane. Eight species of plants were present in the Backshore Zone prior to the hurricane; after the hurricane, only three species were present and percent cover was only 11% of that before the hurricane. The foredunes of this zone were completely leveled and a belt of Sesuvium portulacastrum was obliterated. Conversely, plants of the taller Primary Dune Zone were not greatly disturbed by the hurricane. Numbers of species and percent cover …

Busy In The Meadow: [Dr. Vincent Dole], Fulvio Bardossi, Judith N. Schwartz

Rockefeller University Research Profiles

Rockefeller University Research Profiles are a series of scientific profiles that were published quarterly, from 1980-1990, by the Rockefeller University. Each issue features the research and achievements of an individual Rockefeller University scientist.

Urease Activity In A Kentucky Bluegrass Turf, W. A. Torello, David J. Wehner

Office of the Dean (CAFES) Scholarship

The components of a turfgrass ecosystem, including plants, an intervening layer of thatch and the underlying soil, influence the fate of topically applied urea fertilizer. The loss of urea N by ammonia volatilization may be governed by the rate of urea hydrolysis. The main objective of this study was to determine the extent of urease activity associated with turfgrass plant tissue, thatch, and the underlying soil. This information may help elucidate the mechanism of ammonia loss following urea application. Because a turfgrass stand frequently possesses an extensive thatch layer that may serve as the primary plant growth medium, additional objectives …

Effects Of Temperature On Testicular Photosensitivity In The White-Throated Sparrow (Zonotrichia Albicollis), Laurel Matthews

Masters Theses & Specialist Projects

It has been shown in studies involving many temperatezone avian species that annual variation in day length is a major environmental factor influencing the timing of seasonal events such as gonadal development, molt, fat deposition, and migration. The mechanism whereby these birds measure day length involves a circadian rhythm of photosensitivity which is entrained by the daily photoperiod. If light occurs such that it coincides with the photosensitive phase of this rhythm, an event such as gonadal recrudescence is induced. This study was carried out in photosensitive White-throated Sparrows in winter and spring of 1982 to explore the possibility that …

Determination Of The Relative Response Of Mammalian Cells To Simulated Sunlight & 254 Nm Radiation, Randall Gill

Masters Theses & Specialist Projects

A comparison between germicidal (254 nm) UV and simulated sunlight (above 300 nm) radiation emitted from a solar simulator has been made using five mammalian cell lines. The cell lines used included normal and photosensitive human skin fibroblasts and one African green monkey kidney cell line. The ratio of 10% survival by exposure to 254 nm radiation divided by 10% survival by simulated sunlight exposure derived from the above comparison was used as a criterion for showing that the above cell lines are statistically significantly different in their relative response to simulated sunlight.

A Black Marlin, Makaira Indica, From The Early Pleistocene Of The Philippines And The Zoogeography Of Istiophorid Billfishes, Harry L. Fierstine, Bruce J. Welton

Biological Sciences

A nearly complete articulated head (including pectoral and pelvic girdles and fins) was collected from an Early Pleistocene, upper bathyal, volcanic ash deposit on Tambac Island, Northwest Central Luzon, Philippines. The specimen was positively identified because of its general resemblance to other large marlins and by its rigid pectoral fin, a characteristic feature of the black marlin. This is the first fossil billfish described from Asia and the first living species of billfish positively identified in the fossil record. The geographic distribution of the two living species of Makaira is discussed, Except for fossil localities bordering the Mediterranean Sea, the …