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Age Structure In A Sample Of Texoceiws (Mammalia, Antilocapridae) From Garden County, Nebraska, Mary Ann Turner

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The University of Nebraska State Museum collections include a large sample of dentitions and skeletal elements of a late Pliocene antilocaprid which Kent (1963) has referred to the species Texoceros cf. guymonensis. At least 95 individuals are represented in this sample which was collected from the University of Nebraska State Museum locality Gd-10, located in the SE¼ NE¼ sec. 29, T. 16 N., R. 44 W. Lower jaws and dentitions are the most common elements preserved in the sample.

Individuals of two other species of pronghorns have previously been aged on the basis of characters of the lower dentition. …

The Influence Of Water Quality Upon The Benthic Macroinvertebrates Of Salt Creek Lancaster County, Nebraska, Thomas Pesek, Gary L. Hergenrader

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

A study to determine the influence of water quality upon the diversity and abundance of benthic macroinvertebrates in Salt Creek, Lancaster County, Nebraska was conducted during 1971-72. Water quality in the creek, as indicated by dissolved oxygen and conductivity levels, varies along the course of the creek and is poorest in the lower reaches where wastes from the city of Lincoln are discharged. The changes in water quality are reflected in the community structure and abundance of macro invertebrates in the creek; the highest community diversity occurred at the upper stations where water quality is unaffected by municipal wastes, while …

Small-Mouthed Salamander, Ambystoma Texanum (Matthes) In Nebraska, Thomas C. Perry, John P. Farney

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

A single specimen of Ambystoma texanum was collected 2 mi E, 2 mi S of Falls City, Richardson County, Nebraska, on 26 October 1969. To our knowledge, this is the first specimen of this species taken in Nebraska. This specimen was collected from a sunken horse tank used as a duck blind, on an oxbow lake cut from the Nemaha river. The lake is three to four feet deep with a muddy bottom and submerged logs. Slough grass, Spartina pectinata, the dominant vegetation, was trampled extensively by cattle except around the horse tank where it was protected by a …

An Overview Of Problem Bird Management - Rural And Urban, Joseph L. Guarino

Great Plains Wildlife Damage Control Workshop Proceedings

The economic impact of birds on agricultural crops in the U.S. is quite substantial -- perhaps as much as $100 million dollars. Methods for reducing this damage can be categorized as biological, mechanical, and chemical. The chemical approach appears to have the most potential. An avian repellent, methiocarb, has proven to be effective for reducing damage by a variety of species of birds to many sprouting and ripening crops and fruit. An avian chemical frightening agent, 4-aminopyridine (Avitrol), if federall registered for use for protecting ripening field corn and sweet corn and was shown to be effective for reducing damage …

A Live Trap For Birds Attending A Feeding Station, J.L. Hart, L.L. Todd

Great Plains Wildlife Damage Control Workshop Proceedings

An effective live trap for capturing nuthatches, titmice, and woodpeckers was constucted from hail screen and modified mouse traps. Over 88 percent of active sets resulted in captures.

Training Needs For Future Extension Wildlife Programs, R.J. Robel

Great Plains Wildlife Damage Control Workshop Proceedings

I want to discuss the need for additional educational opportunities for people who will be trying to reduce wildlife damage in the future.

Bats, Biology, And Control, Stephen P. Kincaid

Great Plains Wildlife Damage Control Workshop Proceedings

Although bats are not commonly thought of as major members of the animal kingdom, they are one of the most numerous of land vertebrates. Bats are thought to have originated in the Old Wordl Tropics and are now almost world-wide in distribution. Bats make up the order Chiroptera, and they are closely related to the hedgehog, shrew and mole.

Management Of Four Alfalfa Varieties To Control Damage From Potato Leafhoppers, W. R. Kehr, R. L. Ogden, J. D. Kindler

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The main purpose of this study was to obtain information on forage yield and quality of four alfalfa (Medicago sativa L.) varieties that differed in level of resistance to potato leafhopper (Empoasca fabae Harris) yellowing, when cut at three stages of growth in the second and third cuttings in field plots, with and without insecticide application. The stages of growth were bud, 1/10, and full bloom. Other purposes included study of the same varieties in field cages manually infested at 20, 40, and 60 adult leafhoppers/square yard, and in supplemental cuttings of field plots under high natural infestation …

89th Annual Report Of The Nebraska Agricultural Experiment Station

Agricultural Research Division: News and Annual Reports

Contents:
Foreword
Administration and Staff
Nebraska Agricultural Experiment Station
Research Projects
Experiment Station Publications
Publications of the Staff
Report of Income and Expenditures

Separation Of Spores And Parasporal Crystals Of Bacillus Thuringiensis In Gradients Of Certain X-Ray Contrasting Agentsseparation Of Spores And Parasporal Crystals Of Bacillus Thuringiensis In Gradients Of Certain X-Ray Contrasting Agents, Eugene S. Sharpe, Kenneth W. Nickerson, Lee A. Bulla Jr., John N. Aronson

Papers in Microbiology

Spores and parasporal crystals of Bacillus thuringiensis can be separated at moderate centrifugation speeds (10,000 to 12,000 rpm) in gradients of Renografin or sodium diatrizoate.

The Prairie Naturalist Vol. 7, No.4. December 1975

The Prairie Naturalist

COMPARISON OF FLOWERING RECORDS FROM KANSAS AND NORTH DAKOTA ▪ O. A. Stevens

REPAIRED BONE BREAK IN A HOUSE SPARROW ▪ C. L. Cink and T. K. Broschat

A LARGE RACOON LITTER ▪ E. K. Fritzell and J. W. Matthews

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA –1975 ▪ R. N. Randall

BOOK REVIEW

Autumn Hawk Migrations ▪ P. B. Hofslund

Lipid Metabolism During Bacterial Growth, Sporulation, And Germination: Differential Synthesis Of Individual Branched And Normal-Chain Fatty Acids During Spore Germination And Outgrowth Of Bacillus Thuringiensis, Kenneth W. Nickerson, Lee A. Bulla Jr., Timothy L. Mounts

Papers in Microbiology

The biosynthesis of individual branched- and normal-chain fatty acids during Bacillus thuringiensis spore germination and outgrowth was studied by comparing pulsed and continuous labeling of these fatty acids with [U- ¹⁴C ]acetate. The relative specific activity of each fatty acid varies with time as the cell progresses through outgrowth. However, fatty acid synthesis does occur in two distinct phases. Upon germination, acetate is incorporated only into the iso-isomers i-C₁₃, i-C₁₄, and i-C₁₆; no normal or anteiso synthesis occurs. Subsequent to T₃₀, the full complement of branched- and normal-chain homologues is formed …

Sciurus Richmondi, J. Knox Jones Jr., Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Sciurus richmondi Nelson, 1898
Richmond's Squirrel

Sciurus richmondi Nelson, 1898:146. Type locality Escondido River, 50 mi. above Bluefields, Nicaragua (Nelson, 1899:100).

Context and Content
Order Rodentia, Family Sciuridae. The genus Sciurus is widely distributed in both the Old and New worlds. S. richmondi is a monotypic species closely related to S. granatensis; both species are members of the subgenus Guerlinguetus.

Sturnira Thomasi, J. Knox Jones Jr., Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Sturnira thomasi de la Torre and Schwartz, 1966
Guadeloupe Yellow-shouldered Bat

Sturnira thomasi de la Torre and Schwartz, 1%6:299. Type locality Sofaia, 1,200 ft., island of Guadeloupe, Lesser Antilles.

Context and Content: Order Chiroptera, Family Phyllostomatidae, Subfamily Stenoderminae. The genus Sturnira contains about 10 species and is confined to the tropical and subtropical regions of the New World. Sturnira thomasi is a monotypic species.

Cultural Pressure On Sex Differences, Patricia Draper

Department of Anthropology: Faculty Publications

This paper suggests that sex differences in the behavior of children exist but are not necessarily intensified under certain cultural conditions. Under conditions of culture change to a sedentary economy, certain elements of male and female differentiated behavior are exploited in the process of increasing sex differentiation.

Additional Records Of The Stenodermine Bat, Sturnina Thomasi, From The Lesser Antillean Island Of Guadeloupe, Hugh H. Genoways, J. Knox Jones

University of Nebraska State Museum: Mammalogy Papers

Sturnira thomusi was named and described by de la Torre and Schwartz (Proceedings of the Biological Society of Washington 79: 297-303, 1966) on the basis of a single male from the island of Guadeloupe, Lesser Antilles, that was captured by Richard Thomas in 1963. The holotype of S. thomasi has until now been the only known specimen of this unique species. In late July of 1974, a field party from the Museum of Texas Tech University (supported by a grant from the National Science Foundation, GB-41105) collected bats on Guadeloupe and took four additional individuals of S. thomasi, all …

Agricultural Experiment Station News October 1975

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE ACTING DIRECTOR'S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - September 1975
BULLETINS PRINTED

Prevalence Of Toxoplasma Antibodies In Range Vs. Dairy Cattle From The Bitterroot Valley Of Montana, Franklin Sogandares-Bernal, A. A. Marchiondo, Donald W. Duszynski, J. K. Ward

Harold W. Manter Laboratory of Parasitology: Faculty Publications

"Natural" or unaltered foods have become a fad in recent years. This includes the drinking of unpasteurized cow's milk as well as that designated "Certified." This report is made to call attention to a high prevalence of antibodies to toxoplasma in dairy as compared with range cattle. Previous to this study, few papers have considered the breed or conditions of management of cattle sampled for toxoplasma antibodies (McIlwain, 1969, Arch Environ Health 19: 885-886; Vanderwagen et aI., 1974, J Am Vet Med Assoc 164: 1,034-1,037).

Water Current, Volume 7, No. 7, September/October 1975

Water Current Newsletter

From the Desk of the Director
New Staff Members for NWRRI
Meeting of Institute Advisory Committee
Position Announcement
Deadline for Research Proposals
Corps Water Plan Receives Mixed Reaction
Nonpoint Source Pollution Study
Corps Begins Study of Beatrice Flood Problems
Untapped Coal to be Evaluated
Research Review: Detection of a Potential Health Hazard in Recreational and Other Surface Waters

The Prairie Naturalist Vol. 7 , Nos. 2 And 3. June-September, 1975

The Prairie Naturalist

VASCULAR FLORA OF EMMONS COUNTY, NORTH DAKOTA ▪ R. P Williams and W. T. Barker

NOTES

Unusual Nesting Site of Barn Swallows ▪ W. A. Buresh

Summer Tanager in Burleigh County, North Dakota ▪ W. A. Buresh

Additional Record of Summer Tanager in North Dakota ▪ J. F. Cassel

Snowy Owl in McHenry County, North Dakota, in May ▪ W. A. Buresh

Facing The Economic Issue, Clayton K. Yeutter

Clayton K. Yeutter, United States Secretary of Agriculture: Papers

Perhaps the most significant item on America's unfinished agenda is the status of our economy. We are all aware of serious difficulties in our economic structure today. We could scarcely fail to notice, what with recent devaluations of the dollar, double-digit inflation, serious unemployment, recession and staggering Federal budget deficits.

Obviously, we have not yet achieved the ideal economic system. Even worse, we seem to have major disagreement about where we are and the direction in which we want to travel.

An Economic Information Program For The U.S. Beef And Pork Sectors, N. A. Aulaqi, J. B. Hassler

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Major objectives of the study were: first, to review present public data programs and to indicate areas of inefficient performance in the production and marketing of beef and pork that still exist under the present data system; second, to simulate an operational information service program for the beef and pork sectors based on programmed solutions for industry allocations and activities; and third, to outline possible implementation procedures for the information service programs and to indicate the role of each of the participants in making it successful.

Physical And Chemical Properties Of Outdoor Beef Cattle Feedlot Runoff, C. B. Gilbertson, J. R. Ellis, J. A. Nienaber, T. M. Mccalla, T. J. Klopfenstein

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Within the past decade, emphasis has been placed on the quality of our environment. Beef cattle feedlots have been singled out as a significant source of environmental pollution. Environmental protection provided by control facilities requires basic knowledge of the physical and chemical properties of feedlot runoff. This bulletin summarizes studies of physical and chemical properties of beef cattle feedlot runoff completed from August, 1968 through December, 1972.

A New Species Of Eptesicus From Guadeloupe, Lesser Antilles (Chiroptera: Vespertilionidae), Hugh H. Genoways, Robert J. Baker

University of Nebraska State Museum: Mammalogy Papers

In the course of field studies on bats of the Antillean region, three specimens of the genus Eptesicus were obtained on the island of Guadeloupe in the Lesser Antilles. The nearest known populations of this genus are on Puerto Rico 500 kilometers to the west (E. fuscus wetmorei), on the northern coast of South America 850 kilometers to the southwest (E. fuscus miradorensis), and on Tobago 550 kilometers to the south (E. brasiliensis melanopterus). Study of the specimens from Guadeloupe reveals that they represent a distinct species that is most closely related to Eptesicus …

Bionomics Of Insects Associated With Corn In The Nebraska Sandhills, J. L. Wedberg, J. B. Campbell, T. J. Helms

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Investigations were conducted in the Nebraska Sandhills to determine the impact of transition from grassland to irrigated corn on selected insect species, to identify indigenous species that may be economically important to corn production, and to provide a point of reference for future development of pest management programs for irrigated corn.

Farm, Ranch And Home Quarterly Institute Of Agriculture And Natural Resources, University Of Nebraska- Lincoln

Farm, Ranch and Home Quarterly

In this issue:

3 Agricultural Experiment Station Centennial

4 Rain Is a Sometime Thing

6 Monensin

10 Divorce in the Middle Years

12 Collecting Nebraska's Colorful Agates 1

3 Plan Now for Storing Acid-Treated Corn

14 Pocket Gophers: A Grassland Nuisance

19 Women on Tractors

20 Abandoning Railroad Branch Lines

23 Feedlots and Recreation Ponds

Water Current, Volume 7, No. 6, July/August 1975

Water Current Newsletter

From the Desk of the Director
New Address for NWRRI
Newsletter Publication Change
NWRRI Publications List
Deadline for Research Proposals
NWRRI Fiscal Year 1976 Research Program
Groundwater Recharge Study
Irrigation Research Explained at SAL Field Day
Research Review: Computer Modeling to Maximize Water Use Efficiency and Reduce Energy in Irrigation

Critical Flicker Frequency In A Harp Seal: Evidence For Duplex Retinal Organization, Charles D. Bernholz, Michael L. Matthews

University of Nebraska-Lincoln Libraries: Faculty Publications

Critical flicker frequency (CFF) was investigated in a free swimming harp seal using behavioral techniques. The resulting CFF vs intensity curve indicates a definite rod/cone break, suggesting a duplex photoreceptor population, whose presence had not been observed in previous morphological reports.

Vegetation Development In Relation To Age Of River Stabilization Structures Along A Channelized Segment Of The Missouri River, John Arthur Vaubel

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

During the summer of 1974, I sampled sites of vegetation representative of successional trends in plant communities along the Missouri River floodplain from Sioux City, Iowa, to Rulo, Nebraska. Five district community types listed from youngest to oldest are as follows: Salix spp. – dominated, Populus deltoides – dominated, Platanus occidentalis-Ulmus rubra – dominated, Tilia americana-Quercus rubra – dominated, and Quercus macrocarpa-Carya ovata – dominated vegetation.

The technique of relating vegetation succession to age of river stabilization structures was found to be useful and offered a quite precise method of developing a timescale …

Agricultural Experiment Station News June 1975

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
NEW LEADERSHIP - HORTICULTURE AND WRRI
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – May 1975
BULLETINS PRINTED