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Hexapod Herald - Vol. 1, No. 24, December 20, 1990

Hexapod Herald and Other Entomology Department Newsletters

National ESA meeting

Grants

Grant information

Congratulations

Publications

Department travelers

Miscellaneous

Calendar of events

A Report On Black-Tailed Prairie Dogs In Nebraska-- Their Biology, Behavior, Ecology, Management, And Responses To A Visual Barrier Fence, Nancy S. Foster

School of Natural Resources: Dissertations, Theses, and Student Research

I examined the effects of a visual barrier fence, which had a see-through visibility of 600/0, on the foraging, vigilance, and aggressive behaviors of adult female black-tailed prairie dogs from June through August 1990 in central Nebraska. I also examined changes in their home ranges and use of an area in response to this fence. Prairie dogs prefer an open view of their surroundings. Therefore, I expected animals near a visual barrier to spend more time in vigilance and aggression, and less time foraging. Adult female prairie dogs exposed to the visual barrier devoted more time to foraging and less …

The Viral Envelope Gene Is Involved In Macrophage Tropism Of A Human Immunodeficiency Virus Type 1 Strain Isolated From Brain Tissue, Zhen-Qian Lou, Charles Wood, Jay Levy, Cecilia Cheng-Mayer

Nebraska Center for Virology: Faculty Publications

Human immunodeficiency virus type 1 (HIV-1) strains isolated from the central nervous system (CNS) may represent a subgroup that displays a host cell tropism different from those isolated from peripheral blood and lymph nodes. One CNS-derived isolate, HIV-l_SFl28A, which can be propagated efficiently in primary macrophage culture but not in any T-cell lines, was molecularly cloned and characterized. Recombinant viruses between HIV-l_SF128A and the peripheral blood isolate HIV-l_SF2 were generated in order to map the viral gene(s) responsible for the macrophage tropism. The env gene sequences of the two isolates are about 91.1% homologous, with variations …

Effects Of Errors In Pedigree On Three Methods Of Estimating Breeding Value For Litter Size, Backfat And Average Daily Gain In Swine, T. E. Long, R. K. Johnson, J. W. Keele

Department of Animal Science: Faculty Publications

Estimated breeding value (EBV) was calculated based on either individual phenotype (SP), an index of individual phenotype and full- and half-sib family averages (SI) or Best Linear Unbiased Prediction (BLUP). Calculations were done with correct data or data with 5, 10, 15 or 20% of the records per generation containing pedigree errors. Traits considered were litter size (LS), backfat (BF) and average daily gain (ADG). When data were correct, BLUP resulted in an advantage in expected genetic gain over SP of 22, 7.2 or 30.8% for LS, BF and ADG, respectively, and over SI of 9.6, 3.8 or 21.4%. When …

Introduction Of Robert B. Grieve As The Henry Baldwin Ward Medalist For 1990

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Transcript of the introduction of Robert B. Grieve as the American Society of Parasitologists Henry Baldwin Ward Medalist for 1990, given by Daniel R. Brooks.

Cytokeratin And Desmoplakin Analogues Within An Intracellular Parasite, Earl Weidner, Robin M. Overstreet, Bruce Tedeschi, John Fuseler

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

A significant amount of the total protein in the spore sacs of the microsporidian Thelohania sp. consisted of the cytoskeletal elements, cytokeratin intermediate filaments, and the desmosomal analogues. The cytokeratin and desmosomal analogues were organized as cage envelopes surrounding the spores within the spore sac stage. Thelohania sp. parasitizes the skeletal muscle of Callinectes sapidus, a crustacean that does not appear to have cytokeratins or desmosomes. Immunoprobe data indicate Thelohania sp. has a 240 kDa desmoplakin protein and 48, 51, 54 and 56 kDa cytokeratin polypeptides responsive to antibodies developed against bovine cytoskeletal counterparts. The cytoskeletal envelopes within the …

The Nebline, December 1990

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Contents:

Ag Update: Agricultural News & Events

Home Extension News

On-the-Grow: Horticulture News & Recommendations

The Cloverline: 4-H News and Events

Extension Calendar

and other extension news

1990 Fall Field Days (December 1990)

Nebraska Bird Review

1990 FALL FIELD DAYS

The registration for the1990 Fall Field Days, held 7 to 9 September at the 4-H Camp in the National Forest near Halsey, was 57. The weather was clear, in the 80's during the day, but cool nights, and even during the day the Lodge was pleasant because of the ventilation and the fans. Friday night there was a slide show, Saturday night Gerry Toll told about the Peregrine Falcon project in Omaha, with slides. Mrs. Green banded birds, as usual, showing interesting specimens to those who were near. On Saturday some took a canoe trip down …

Index To Volume 58 (December 1990)

Nebraska Bird Review

Index

A-Z

9 pages

Laughing Gull In Cedar County, Nebraska, Mark A. Brogie

Nebraska Bird Review

Laughing Gull in Cedar County, Nebraska

Johnsgard's (1986) A Revised List of the Birds of Nebraska and Adjacent States considers the Laughing Gull (Larus atricilia) an extremely rare vagrant in Nebraska. Bray, Padelford, and Silcock (1986), in The Birds of Nebraska: a Critically Evaluated List, consider this species as accidental, with only one of 13 records accepted - the description of a specimen of one taken 2 April 1915 at Inland, Clay Co. This specimen was once in the Hastings Municipal Museum, but was sold and its current location is unknown.

A Laughing Gull documentation by Steve …

Significant (?) Modifications In Bird Sightings At Wolff Lake (Fall 1979 To Spring 1990), Thomas A. Hoffman

Nebraska Bird Review

One of the problems of having a computer handy is that you begin to start organizing your notes. Recently I began to organize the notes I had taken since 1979 for the Nebraska Bird Review's semi- annual occurrence reports. Partly I wanted to verify my suspicions about variation in the occurrence of several species during that period of time. I try to visit the area called Wolff Lake (a sand-arid-gravel operation on the south side of the Platte River in northwestern Saunders Co. each weekend. But there are many variations, and there are periods of prolonged absences. I average about …

"Notes," From Nebraska Bird Review (December 1990)

Nebraska Bird Review

THE TABLES FOR THE 1990 SPRING OCCURRENCE REPORT were poorly printed, for unexplained reasons. The tables did not match across the "gutter"; it will help to draw a line from the first line on one page to the first line on the facing page, and then draw a line across for every third line. That way, the line for each species will either have a line across, or be just above or just below one. The headings for the left-hand pages after page 60 were omitted. The headings for pages 58 and 60 are correct for the rest of the …

Third Report Of The N.O.U. Records Committee, Alan G. Grenon

Nebraska Bird Review

The functions and methods of the N.O. U. Records Committee (henceforth, "the committee") have been described previously (NBR 54:72-4).

This report includes accounts of records evaluated by the committee in the last year, covering mostly records with accessions numbers 151-245. All records mentioned here are available to interested persons at the N.O.U. archives at the University of Nebraska State Museum, Lincoln.

State List

With this report, the following changes are made in the official list of the birds of Nebraska. These include changes in common and scientific names (American Ornithologists Union (AOU), 1989, NBR 57:58), additions to the state …

Ard News December 1990

Agricultural Research Division: News and Annual Reports

CONTENTS:
SEASONS GREETINGS
GRANTSMANSHIP WORKSHOP
ESCOP LEADERSHIP DEVELOPMENT COURSE
GRADUATE STUDENT ENROLLMENT IN IANR-AFFlLIATED PROGRAMS - FALL 1990
THE CRP IN NEBRASKA
RESEARCH PROVISION OF THE 1990 FARM BILL
CONSUMER EXPENDITURES FOR FOOD
CSRS APPROPRIATIONS FOR FY 1991
1991 ESCOP RESEARCH INITIATIVE PRIORITIES
PROGRAM SIZE AND FY 1989 RESEARCH EXPENDITURES OF SELECTED AGRICULTURAL EXPERIMENT STATIONS

Mountain Plover Sighted In Kimball County, Mary Clausen

Nebraska Bird Review

In late April of 1990 I went to Kimball Co. to search for Mountain Plovers. Over a period of a week I walked several sections where Mountain Plovers have been sighted in the past. No Plovers were found at that time.

After I returned to my office in Lincoln, Fritz Knopf (Avian Studies Biologist, U.S. Fish and Wildlife Service, Colorado) contacted me to discuss Mountain Plover nesting habitat and behavior. Fritz offered to make a quick drive around Kimball Co. to see how the habitat in Nebraska compared to that used by nesting Mountain Plovers in Colorado.

On 3 May …

Whole Issue Nebraska Bird Review (December 1990)

Nebraska Bird Review

Table of Contents

Third Report of the N.O.U. Records Committee.................... 90

1990 Fall Field Days.................... 97

Mountain Plover Sighted in Kimball County ....................98

Laughing Gull in Cedar County, Nebraska ....................99

A Comparison of Historic and Modern Birdlife at an Eastern Sand Hills Lake In Nebraska ....................100

Significant (?) Modifications in Bird Sightings at Wolff Lake (fall 1979 to spring 1990) ....................104

Notes ....................106

Index to volume 58 ....................108

The Prairie Naturalist Volume 22, No. 4. December 1990

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

CONTENTS

DISTRIBUTION AND STATUS OF GREATER PRAIRIE-CHICKENS IN COLORADO ▪ B. F. Van Sant and C. E. Braun

IMPORTANCE OF AN OLD, MULTIPLE-USE RESERVOIR TO MIGRATING AND WINTERING DABBLING DUCKS ▪ D. M. Leslie, Jr. , and W. J. Stancill

SIMILARITY OF MALLARD NESTING ON A SOUTH DAKOTA ISLAND BETWEEN 1967-68 and 1985-87 ▪ S. G. Simpson and D. Limmer

BOBCAT HABITAT USE IN SOUTHEASTERN MONTANA DURING PERIODS OF HIGH AND LOW LAGOMORPH ABUNDANCE ▪ B. J. Giddings, G. L. Risdahl, and L. R. Irby …

The Viral Envelope Gene Is Involved In Macrophage Tropism Of A Human Immunodeficiency Virus Type 1 Strain Isolated From Brain Tissue, Zhen-Qian Liu, Charles Wood, Jay Levy, Cecilia Cheng-Mayer

Nebraska Center for Virology: Faculty Publications

Human immunodeficiency virus type 1 (HIV-1) strains isolated from the central nervous system (CNS) may represent a subgroup that displays a host cell tropism different from those isolated from peripheral blood and lymph nodes. One CNS-derived isolate, HIV-l_SF128A , which can be propagated efficiently in primary macrophage culture but not in any T-cell lines, was molecularly cloned and characterized. Recombinant viruses between HIV-1_SF128A and the peripheral blood isolate HIV-I_SF2 were generated in order to map the viral gene(s) responsible for the macrophage tropism. The env gene sequences of the two isolates are about 91.1% homologous, with variations …

Volume 4, No. 1-4 – December 1990

Insecta Mundi

Cover and Announcements

Polymorphism Of Eimerian Oocysts Can Be A Problem In Naturally Infected Hosts: An Example From Subterranean Rodents In Bolivia, Scott Lyell Gardner, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Since 1986, 364 tuco-tucos (Ctenomys spp.) representing 7 species were collected from 16 major collecting areas representing at least 4 distinct ecological habitats in Bolivia, South America. All were examined for coccidia, and 125 (34%) had oocysts in their feces including 84 of 236 (36%) Ctenomys boliviensis from tropical palm/savanna habitats; 1 of 3 (33%) Ctenomys conoveri from a chaco thorn forest; 3 of 7 (33%) Ctenomys frater from medium altitude grass habitats; and 6 of 8 (75%) Ctenomys lewisi and 31 of 35 (88%) Ctenomys opimus from high altitude/puna habitats. None of 3 Ctenomys leucodon (high altitude/puna) or …

Hexapod Herald - Vol. 1, No. 23, November 16, 1990

Hexapod Herald and Other Entomology Department Newsletters

Bruner Club

Congratulations

Grants

Deadline

National ESA meeting

Faculty

Publications

Calendar of events

Miscellaneous

Sand Bluestem And Prairie Sandreed Establishment, Robert A. Masters, Kenneth P. Vogel, Patrick E. Reece, Dennis Bauer

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

Sand bluestem [Andropogon gerardii var. paucipilus (Nash) Fern,] and prairie sandreed (Calamovitfa longifolia Hook.) are native warm-season grasses used to revegetate cropland and degraded rangeland on highly erodible sandy soils in the central Great Plains. The objectives of this study were to compare establishment success of the 2 grasses and to determine if application of atrazine at time of planting enhanced grass establishment. Eight plantings, including 'Goldstrike' and 'Garden' sand bluestem and 'Goshen' and 'Pronghorn' prairie sandreed, were made from 1985 to 1987 at locations in eastern, north central, and western Nebraska. Three plantings were established under irrigation …

The Nebline, November 1990

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Contents:

Ag Update: Agricultural News & Events

Home Extension News

On-the-Grow: Horticulture News & Recommendations

The Cloverline: 4-H News and Events

Extension Calendar

and other extension news

Defoliation Effects On Production And Morphological Development Of Little Bluestem, J. J. Mullahey, Lowell E. Moser, Steven S. Waller

Department of Agronomy and Horticulture: Faculty Publications

Response of key warm-season grasses to time, frequency, and duration of defoliation is needed to develop grazing systems for the Nebraska Sandhills. A 3- year (1986 to 1988) study was conducted on a Valentine fine sand (mixed, mesic Typic Ustipsamments) at the Gudmundsen Sandhills Laboratory near Whitman, Nebraska, to determine the effect of defoliation on little bluestem [Schizachyrium scoparium (Michx.) Nash]. Treatments were: 1 defoliation (to 7 cm) on 10 June, 10 July, or 10 Aug.; 2 defoliations on 10 June and 10 Aug.; and 3 defoliations on 10 June, 10 July, and 10 Aug. Control plants were harvested …

Alternative Methods Of Selection For Litter Size In Mice: I. Characterization Of Base Population And Development Of Methods, A. C. Clutter, Merlyn K. Nielsen, R. K. Johnson

Department of Animal Science: Faculty Publications

Studies on a base population of mice were used to establish an index of components of litter size and a physiological model for measuring uterine capacity to be used subsequently in a selection experiment evaluating alternative methods for practicing selection to increase litter size. Heritability estimates of litter size, ovulation rate and ova success (fraction of ova resulting in fully formed pups) were .18, .33 and .15, respectively. No significant genetic or phenotypic correlation was found between overall ovulation rate and ova success. Phenotypic means and genetic variances were higher for characteristics measured on the right than on the left …

Hexapod Herald - Vol. 1, No. 22, October 26, 1990

Hexapod Herald and Other Entomology Department Newsletters

Miscellaneous

Graduate students

Grants

Publications

Calendar of events

Department travelers

Hexapod Herald - Vol. 1, No. 21, October 12, 1990

Hexapod Herald and Other Entomology Department Newsletters

Miscellaneous

Grants

Graduate studentsPublications

Department travelers

Calendar of events

Alumni news

Insecticide Toxicity, Synergism, And Resistance In The German Cockroach (Dictyoptera: Blattellidae), Jeffrey G. Scott, Donald C. Cochran, Blair Siegfried

Department of Entomology: Faculty Publications

The toxicity of, synergism of, and resistance to insecticides in four strains of German cockroach, Blattella germanica (L.), were investigated. Toxicity of nine insecticides by topical application to the susceptible strain varied >2,000-fold, with deltamethrin (LD₅₀ = 0.004 μg per cockroach) and malathion (LD₅₀ = 8.4 μg per cockroach) being the most and least toxic, respectively. Resistance to pyrethrins (9.5-fold) in the Kenly strain was unaffected by the synergists piperonyl butoxide (PBO) or S,S,S-tributylphosphorotrithioate( DEE), suggesting that metabolism is not involved in this case. Malathion resistance in the Rutgers strain was suppressible with PBO, implicating oxidative metabolism as …

Animal Science Newsletter, Fall 1990

Department of Animal Science: Departmental News

Contents:

Art For the Animal Science Complex
New Faculty
R. B.’s Judging Teams Reunion
R. B. Warren Retires
Department Awards and Recognition
Non-Academic Staff
Graduate Student
Low Input Sustainable Agriculture Program
New Programs in Department
Project: Class (Communication Literacy in the Animal Sciences)
Enrollment Trends
Judging Teams Have a Successful Year
Block and Bridle Club
Block and Bridle Activities for 1990-1991
Alumni News
Calendar of Events for 1990-1991
Alumni Information

The Nebline, October 1990

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Contents:

Ag Update: Agricultural News & Events

Home Extension News

On-the-Grow: Horticulture News & Recommendations

The Cloverline: 4-H News and Events

Extension Calendar

and other extension news