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The Genetical Evolution Of Patterns Of Sexuality: Darwinian Fitness., Eric Charnov

Biology Faculty & Staff Publications

No abstract provided.

Fractionation Of Ribosomal Proteins By Affinity Chromatography, Corazon E. Victoria

Masters Theses

No abstract provided.

Selection For Yellow Clover Aphid And Pea Aphid Resistance In Red Clover, H. J. Gorz, G. R. Manglitz, Francis A. Haskins

Department of Agronomy and Horticulture: Faculty Publications

Most red clover (Trifolium pratense L.) cultivars are susceptible to attack by the yellow clover aphid (Therioaphis trifolii Monell) and the pea aphid (Acyrthosiphon pisum Harris). Starting with 27 yellow clover aphid-resistant plants selected from a wide diversity of germplasm, phenotypic recurrent selection was used to improve resistance to the two aphids. Through five cycles of testing and selection for yellow clover aphid resistance and three such cycles for pea aphid resistance, a synthetic, 'N-2', was developed that had a high level of resistance to both aphids.

1979 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

No abstract provided.

Metcalf-Hatch Act: Profit, Politics And Pain, Henry Spira

Articles

No abstract provided.

A Study Of Nongeographic Variation In Tatera Leucogaster (Mammalia: Rodentia) From Botswana, Pierre Swanepoel, Duane A. Schlitter, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Specimens of Tatera leucogaster from six localities in Botswana were tested for variation with age, secondary sexual variation, and individual variation. Of the six age classes recognized, categories I, II, and III each formed their own group, whereas cat egories IV, V, and VI were not separable on a morphometric basis and were considered to be adults. Significant secondary sexual variation was found only in depth of braincase in which females were larger. The only character exhibiting unusually high individual variation was length of posterior palatal foramen. All other characters exhibited individual variation within acceptable limits.

A Systematic Review Of The Olive-Backed Pocket Mouse, Perognathus Fasciatus (Rodentia, Heteromyidae), Daniel F. Williams, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Geographic variation in Perognathus fasciatus Wied and the identities of specimens of P. fasciatus and P. flavescens from areas of potential sympatry were investigated. Populations of P. fasciatus from the northern Great Plains, in areas with the highest amounts of precipitation, were the darkest colored and had proportionately the smallest auditory bullae. Size varied clinally in the Great Plains, with larger mice being found in the cooler, northern latitudes. Populations from the arid intermountain basins of Colorado, Utah, and Wyoming were largest in size, had the longest tails, were the palest in color, and had the largest bullae. Two races …

Biochemical Discovery Of Homogentisic Acid Pigment In An Ochronotic Egyptian Mummy, Frederick F. Stenn, James W. Milgram, Sandra L. Lee, Raymond J. Weigand, Arthur Veis, Frank Rogers

Henry Ford Hospital Medical Journal

No abstract provided.

The Effects Of Prenatal Injections Of Adrenocorticotropin And Glucocorticoid On Glucose-6-Phosphate Dehydrogenase And Glycogen In Neonatal Rat Liver, Zindoga Tiz J. Bungu

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 Zindoga Tiz J. Bungu on March 1, 1979.

Rheumatoid Arthritis, Jeanne M. Riddle

Henry Ford Hospital Medical Journal

No abstract provided.

Motility Of The Microtubular Axostyle In Pyrsonympha, George M. Langford, Shinya Inoué

Biology - All Scholarship

The rhythmic movement of the microtubular axostyle in the termite flagellate, Pyrsonympha vertens, was analyzed with polarization and electron microscopy. The protozoan axostyle is birefringent as a result of the semi-crystalline alignment of approximately 2,000 microtubules. The birefringence of the organelle permits analysis of the beat pattern in vivo. Modifications of the beat pattern were achieved with visible and UV microbeam irradiation. The beating axostyle is helically twisted and has two principal movements, one resembling ciliary and the other flagellar beating. The anterior portion of the beating axostyle has effective and recovery phases with each beat thereby simulating the flexural …

Review Of "Introduction To Biometrical Genetics" By K. Mather And J. L. Jinks, John B. Jenkins

Biology Faculty Works

No abstract provided.

Whole Issue Nebraska Bird Review (March 1979) 47(1)

Nebraska Bird Review

Table of Contents

1978 Treasurer's Report ........................................ 2

The Breeding Birds of Nebraska. ...........................................3

Book Reviews .............................................................. 17, 19

Notes ..................................................................... 17, 19

The Prairie Naturalist Vol. 11, No. 1. March, 1979

The Prairie Naturalist

ORIN ALVA STEVENS, A PRAIRIE NATURALIST ▪ G. Monson

FIRST RECORD OF LONG-TAILED JAEGER FOR NORTH DAKOTA ▪ T. Gatz and D. Treasure

NEW RECORDS OF THE DWARF SHREW (SOREX NANUS) IN SOUTH DAKOTA ▪ R. J. Cinq-Mars, R. S. Hoffmann and J. K. Jones, Jr.

THE ETHYLENE FROM BURNING LIGNITE AS A PROBABLE CAUSE OF COLUMNARITY IN NORTH DAKOTA JUNIPERS ▪ J. M. Murphy and D. J. Holden

CAMOUFLAGED COYOTE DEN ENTRANCES ▪ D. P. Althoff

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1978 ▪ R.N. Randall

NOTES

An Upland Nest of the Virginia Rail in North …

Arthritis In Dry Bones: Diagnostic Problems, Claire M. Cassidy

Henry Ford Hospital Medical Journal

No abstract provided.

Species With Extrafloral Nectaries In A Temperate Flora (Nebraska), Kathleen H. Keeler

School of Biological Sciences: Faculty Publications

Extrafloral nectaries (EFNs) are glands on a plant, not involved in pollination, that produce solutions containing sugars (and other compounds). Long noted by morphologists, EFNs have recently been observed to be part of ant-plant mutualisms. The function of EFNs appears to be to attract aggressive insects, especially ants, which by disturbing or preying upon herbivores, reduce damage to the plant (Janzen, 1966a,b; Elias and Gelband, 1975; Keeler, 1975, 1977; Bentley, 1976, 1977a,b; Schemske, 1978; Tilman, 1978; Inouye and Taylor, 1979; Pickett ad Clark, 1979). Furthermore, they constitute an unusual plant defense against herbivores: at EFNs plants employ ants as a …

The Breeding Birds Of Nebraska, Paul A. Johnsgard

Paul Johnsgard Collection

This brief annotated list of Nebraska's breeding birds is the direct outgrowth of the work involved in the preparation of a forthcoming book titled "The Birds of the Great Plains," which will include range maps for all species except extinct or extirpated ones, and will also provide information on breeding habitat, nest location, clutch size, incubation period, and breeding biology. The purpose of the present compilation is to provide a convenient summary for Nebraska alone, amplifying some of the more general statements of that book, and pointing out uncertain or interesting situations needing further attention from field ornithologists. It includes …

Proceedings Of The Conference On Environmental Law -- Toxic Substances, William & Mary Law School

One-Time Conferences: Programs

Held on February 9-10, 1979 at William & Mary Law School.

Funded by the Virginia Environmental Endowment.

Symposium Participants (in order of appearance): Maurice B. Rowe, William R. Moore, Louise Burke, William F. Gilley, James Douglas, Manning Gasch, Jr., Barbara Bitters, Robert Jackson, James Ryan, Robert R. Merhige, Jr., Gus Steph, Steven D. Jellinek, Frederick R. Anderson, Luther Carter, Peter Barton Hutt, Richard Voight, Richard Merrill, George Taylor, Richard Fleming, Hargis, Richard N. Velde, Susan B. King, Jacob Clayman, Nicholas Ashford, James Rogers, Charles O'Connor, Donald F. Hornig, Devra Davis, Scott C. Whitney, and Denis J. Brion.

Steriodogenesis In Mouse Preimplantation Embryos, Marcia E. Kendall

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 Marcia E. Kendall February 8, 1979.

Ua66/6/2 Proceedings Of The Third Symposium On Larval Fish, Wku Biology

WKU Administration Documents

Proceedings of the Third Symposium on Larvel Fish. Contains:

• Hoyt, Robert, et al. Observations on the Larval Ecology of the Smallmouth Buffalo
• Conner, John. Identification of Larval Sunfishes (Centrarchidae: Elassomidae) from Southern Louisiana
• Snyder, Darrel. Myomere and Vertebra Counts of the North American Cyprinids and Catostomids
• Baker, James. Larval Development of the Greenside Darter, Etheostoma blennioides newmanii
• Fuiman, Lee. Materials for a Description of Lake Chubsucker (Erimyzon sucetta) Larvae
• Kranz, Vincent et al. Development of the Young of the Creek Chub Semotilus atromaculatus
• Graser, Lee. Spatio-temporal Distributions of t Clupeid Larvae in Barkley Reservoir
• Kindschi, Greg, et al. Notes …

Kentucky Warbler (Vol. 55, No. 1), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Agricultural Experiment Station News February 1979

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR’S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - January 1979

Review Of Endangered Birds. Management Techniques For Preserving Threatened Species, Ed. Stanley A. Temple, Paul A. Johnsgard

Paul Johnsgard Collection

In 1977 an international symposium brought together scientists having expertise in the conservation and management of the world's endangered species of birds. The resulting publication includes 50 papers that were presented at the symposium, together with some concluding remarks. Although this is certainly an impressive assemblage of papers and topics, it should be noted that only about 40 species are mentioned in the proceedings, as compared with a total of 265 species and 140 subspecies worldwide that are currently believed to be threatened.

In Vitro Incorporation Of Molybdate Into Demolybdoproteins In Escherichia Coli, Randolph H. Scott, George T. Sperl, John A. Demoss

Faculty, Staff and Student Publications

When Escherichia coli was grown in the presence of tungstate, inactive forms of two molybdoenzymes, nitrate reductase and formate dehydrogenase, accumulated and were converted to their active forms upon incubation of cell suspensions with molybdate and chloramphenicol. The conversion to the active enzymes did not occur in cell extracts. When incubated with [(99)Mo]molybdate and chloramphenicol, the tungstate-grown cells incorporated (99)Mo into protein components which were released from membranes by procedures used to release nitrate reductase and formate dehydrogenase and which migrated with these activities on polyacrylamide gels. Although neither activity was formed during incubation of the crude extract with molybdate, …

Redescription And Comparison Of A Highly Fossorial Mole, Domninoides Mimicus (Insectivora, Talpidae), From The Clarendonian, Patricia W. Freeman

University of Nebraska State Museum: Mammalogy Papers

The holotype of the species, Domninoides mimicus, is based on one tooth. Described in the present report is material containing a practically complete dentition and many postcranial elements which definitely belong with the teeth. This species is closely related to Domninoides valentinensis described by Reed (1962), but some of the antemolars in valentinensis are misidentified. The tooth formulas for valentinensis and for mimicus are given. Development of the cingula on the upper and lower molars in mimicus is conspicuous. Because of similar features in the postcranial bones, the Clarendonian mole may be as fossorial as Scalopus, probably the …

Nepal Studies Association Bulletin, No. 18, Nepal Studies Association, Donald A. Messerschmidt

Nepal Studies Association Newsletter

No abstract provided.

Treatment Of Nerve Impulse Data For Comparison With Theory, Bruce Knight, Scott E. Brodie, Lawrence Sirovich

Knight Laboratory

A procedure is given for the comparison of nerve impulse data with model predictions. This method utilizes information in the nerve impulse train that is ignored by the post-stimulus-onset histogram and thereby gives an improved signal-to-noise ratio. Comparison of observed responses in the Limulus retina with predictions derived from a detailed model gives good agreement.

The Life History And Ecology Of Ptilostomis Postica (Walker) (Trichoptera: Phryganeidae) In Greenbottom Swamp, Cabell County, West Virginia, Mary Beth Roush

Theses, Dissertations and Capstones

The life histoy and ecology of Ptilostomis postica (Walker) from Greenbottom swamp in Cabell County, West Virginia were investigated from December 1977 to December 1978, Length-frequency histograms indicate the life cycle is uriivoltine. Larvae achieved their greatest growth rate (75%) from fall to winter. Case length showed its greatest increase (70.3%) for this same period. There was high correlation between case length and body length in fall (r=0.72) and winter (r=0.87), however, a low correlation (r=0.18) was found in spring. The diet of the larvae changed from carnivorous in fall and winter to omnivorous in spring. Pupation began at the …

Proposed Environmental Impacts Of The Gallipolis Locks And Dam Replacement, Ohio River Mile 279.2, On The Benthic Macroinvertebrates And Fishes Of Flatfoot Creek, Mason County, West Virginia, William L. Cremeans Jr.

Theses, Dissertations and Capstones

The Gallipolis Locks and Dam at Ohio River Mile 279.2 is soon to be modified or replaced. Construction in the area will effect the lower portion of the small drainage basin (14.61 km) of Flatfoot Creek. Depending on the action taken, a large proportion of Flatfoot Creek and/or a tributary of Mud Run will have severe ecological alterations. For this reason, Flatfoot Creek was investigated for water quality, benthic macroinvertebrates, fish populations and the feeding requirements of the fishes.

A physio-chemical analysis was made of Flatfoot creek. With the exception of five parameters, the creek met guidelines set by state …

Macroinvertebrate Populations In The Upper Mississippi River, David R. Mcconville

Journal of the Minnesota Academy of Science

The macroinvertebrate community of the Mississippi River near Monticell, Minnesota, was examined for 22 months. Quantitative bottom fauna information was obtained by use of concrete block artificial substrate sampling units. Representative organisms were obtained from seven (7) orders, 15 families and 35 genera of benthic macroinvertebrates. All taxa collected displayed definite seasonal trends. The Orders Trichoptera, Diptera, and Ephemeroptera were the most abundant groups collected, Trichoptera (Hydropsyche and Cheumatopsyche) were the dominant members of the benthic population in both numbers and biomass. Midges and blackflies were the dominant Diptera. Pseudocloeon, Stenonema, and Ephemerella were the most frequently collected mayflies.