Life Sciences Commons^™

Wpa News 58 (1999), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (February 1999), number 58

Published by the World Pheasant Association

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 1998, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1998 progress report for the Central Crops and Soils Research Station at Highmore, South Dakota State College. This document represents the research conducted at the Station during the 1998 crop season including: weather data, alafalfa cultivar yield test, wheat breeding, crop performances trials, fertilizer and soil tests effects on wheat yields, weed control research, cheatgrass control no-till demonstrations, and weed control.

Nebline, February 1999

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Remembering the 4-H lock-in
Reflections of Teen Leadership
1999 Perennial Plant of the Year
The garden corner
Using garden catalogs
A spoonful a day keeps the mole away
Mangy squirrels
Misplaced wildlife become problems
Beginning Beekeeping Workshop
Are squirrels using your bird feeders?
Try this trash game!
It’s fun!
Computerized financial record keeping
1999 Integrated Crop Management Winter Programs
Lime and other nutrients key to soil fertility
Reseeding CRP acres
Introduction to precision agriculture
Final private pesticide applicator training session
Fertilizing trees and shrubs
Tractor safety tips (part 2)
Battery maintenance tips
NEP teaches non-English Families Nutrition
Healthy Eating: Bread …

Genetic And Transcriptional Analyses Of The Vibrio Cholerae Mannose-Sensitive Hemagglutinin Type 4 Pilus Gene Locus, Jane W. Marsh, Ronald K. Taylor

Dartmouth Scholarship

The mannose-sensitive hemagglutinin (MSHA) of the Vibrio cholerae O1 El Tor biotype is a member of the family of type 4 pili. Type 4 pili are found on the surface of a variety of gram-negative bacteria and have demonstrated importance as host colonization factors, bacteriophage receptors, and mediators of DNA transfer. The gene locus required for the assembly and secretion of the MSHA pilus has been localized to a 16.7-kb region of the V. cholerae chromosome. Sixteen genes required for hemagglutination, including five that encode prepilin or prepilin-like proteins, have been identified. Examination of MSHA-specific cDNAs has localized two promoters …

Internal Temperature Of Douglas-Fir Buds Is Altered At Elevated Temperature, Martha E. Apple, Melissa S. Lucash, David M. Olszyk, David T. Tingey, Donald L. Phillips

Environmental Science and Management Faculty Publications and Presentations

Pseudotsuga menziesii (Douglas-fir) saplings were grown in sun-lit controlled environment chambers at ambient or elevated (4°C above ambient) temperature. We measured internal temperatures of vegetative buds with thermocouple probes and compared temperatures of normal buds and abnormal buds with loosened, rosetted outer scales in elevated temperature chambers. The abnormal buds had higher and earlier peak daily temperatures than normal buds. Elevated temperature may influence the internal temperature of buds and contribute to the development of abnormal, rosetted buds with loosened outer scales. Abnormal bud development may alter branching patterns and allometry of Douglas-fir trees subjected to climatic change.

Atherosclerosis And Plaque Rupture: An Update, M N. Afzal, S A. Saeed, B H. Shah

Department of Biological & Biomedical Sciences

No abstract provided.

Carbaryl Susceptibility, Diagnostic Concentration Determination, And Synergism For U.S. Populations Of Western Corn Rootworm (Coleoptera: Chrysomelidae), Michael E. Scharf, Lance J. Meinke, Blair D. Siegfried, Robert J. Wright, Laurence D. Chandler

Department of Entomology: Faculty Publications

Baseline carbaryl susceptibility and potential resistance mechanisms were identified in U.S. populations of western corn rootworm, Diabrotica virgifera virgifera LeConte, using lethal concentration, diagnostic concentration, and synergism bioassays. Twenty-two adult rootworm populations were examined from the states of Indiana, Illinois, Iowa, Kansas, Nebraska, Ohio, Pennsylvania, South Dakota, Texas, and Virginia. Lethal concentration bioassays, conducted within carbaryl-coated glass vials on 12 populations, identified resistance in only 2 Nebraska populations. A diagnostic concentration of carbaryl was subsequently identified which caused 100 and 40% mortality in standard susceptible and known resistant populations, respectively. In diagnostic concentration bioassays on all 22 populations, substantial decreases …

Influence Of Rhopus Nigroclavatus (Hymenoptera: Encyrtidae) On The Mealybugs Tridiscus Sporoboli And Trionymus Sp. (Homoptera: Pseudococcidae), Tiffany Heng-Moss, Frederick P. Baxendale, Terrance P. Riordan, Linda J. Young

Department of Entomology: Faculty Publications

This research investigated parasitism of the buffalograss mealybugs Tridiscus sporoboli (Cockerell) and Trionymus sp. by Rhopus nigroclavatus (Ashmead) through rearing and dissection studies, paired comparison tests, and a field survey. Rates of parasitism reported in this article reflect combined parasitism of the 2 mealybug species. In the rearing study, parasitism of adult female mealybugs by R. nigroclavatus was 48.6%, with an average emergence of 1.77 parasitoids per parasitized mealybug. A maximum of 7 R. nigroclavatus adults emerged from a single mealybug female. Mealybug dissections documented parasitism rates by R. nigroclavatus of 78.5, 67.5, and 4.3%, respectively, for adult females, 3rd …

The Life Cycle Of A Horsehair Worm, Gordius Robustus (Nematomorpha: Gordioidea), Ben Hanelt, John J. Janovy Jr.

John J. Janovy, Jr. Publications

Aspects of the life cycle of the nematomorph Gordius robustus were investigated. Gordius robustus larvae fed to Tenebrio molitor (Coleoptera: Tenebrionidae) readily penetrated and subsequently encysted in the posterior portion of the midgut wall. Parasite development was then arrested in each infected beetle. Upon feeding these cysts to laboratory-reared Gryllus firmus. worm larvae developed to adults in the cricket hemocoel. In an additional experiment, G. robustus larvae fed to G. firmus did not develop to adults. These findings are in contrast to other studies that found direct infection to be an alternative mode of infection. This experiment is the …

Field Evaluation Of Herbicides On Small Fruit, Vegetable, And Ornamental Crops, 1997, Ron Talbert, Lance A. Schmidt, Jennifer A. Wells, Jeff S. Rutledge, Dolores A. Parker

Arkansas Agricultural Experiment Station Research Series

Growers generally use herbicides to efficiently produce high-quality fruit and vegetables for processing or fresh market sales. Due to the smaller acreage of these crops compared to major field crops, fewer herbicides are registered for use in fruit and vegetable crops than for field crops. Each year, new herbicides are evaluated under Arkansas growing conditions with the objective of improving the herbicide technology for the grower, processor, and ultimately the consumer. This report includes studies on the control of many of the more serious weed problems in important crops of this region, including snapbeans, spinach, southern pea, watermelon, cantaloupe, tomato, …

A New Species Of Viridimicus Jameson From Honduras (Scarabaeidae: Rutelinae), Mary Liz Jameson

University of Nebraska State Museum: Entomology Papers

Viridimicus omoaensis Jameson is described from Honduras. This species extends the distribution of the genus from Guatemala southwards in Mesoamerica. The characters that define the genus are expanded to include V. omoaensis. A key to the seven species in the genus is provided as well as additional locality notes for V. aurescens (Bates) and V. cyanochlorus Jameson.

Native Vegetation Handbook For The Shire Of Kulin, Bec Ryan

Bulletins 4000 -

This handbook provides land managers with information relating to the natural resources of the Shire of Kulin, including the landscape, geology, soils, drainage systems, native flora and fauna. Information about native flora and vegetation has been drawn from a variety of sources, including surveys that estimated the distribution of plant communities prior to clearing, recent surveys of privately owned remnants, herbarium collections, surveys of nature reserves and roadside surveys. Some of the problems relating to the management of these resources within the Shire and ideas and community initiatives to solve these problems are also discussed. It is hoped that this …

Physiological And Morphological Correlates Of Presynaptic Inhibition In Primary Afferents Of The Lamprey Spinal Cord, I. V. Batueva, E. A. Tsvetkov, A. K. Sagatelyan, James T. Buchanan, N. Vesselkin, V. Adanina, E. I. Suderevskaya, J. -P Rio, J. Repérant

Biological Sciences Faculty Research and Publications

Patch-clamp recordings in a whole-cell mode were performed on dorsal sensory cells enzymatically isolated from the spinal cord of two lamprey species, Ichthyomyzon unicuspis and Lampetra fluviatilis. The voltage-activated currents through calcium channels were analysed. GABA and the specific GABA_B receptor agonist baclofen reduced the peak amplitude of inward Ba²⁺ current, as a robust alternate charge carrier through voltage-dependent Ca²⁺ channels. These effects were dose-dependent and reversible. GABA_B receptor antagonists, 2-hydroxysaclofen and δ-amino-n-valeric acid, blocked the reduction of Ba²⁺ currents by GABA and baclofen, while bicuculline, a GABA_A receptor antagonist, had no blocking …

Boom Sprayer Calibration For Pesticide Applications, Richard Beard, Howard M. Deer

All Current Publications

To protect your investment in agricultural pesticides, a boom sprayer should be calibrated at the start of the season and whenever application conditions change. Also, sprayer output should be periodically checked throughout the season to assure proper application rate. Although boom sprayers are calibrated in a variety of ways, each method utilizes the measurements of nozzle flow rate and equipment travel speed.

The Dirt As Your Canvas, Dennis Hinkamp

All Archived Publications

No abstract provided.

Tent Caterpillars - Are They Setting Up Camp In Your Yard?, Dennis Hinkamp

All Archived Publications

No abstract provided.

Trends. Evolutionary Theories, Iceland, And An Opportunity It Can't Refuse, Ibpp Editor

International Bulletin of Political Psychology

The author discusses a major Swiss pharmaceutical company that plans on investing in Icelandic deoxyribonucleic acid (DNA).

Functional Success Of Six Constructed Bottomland Hardwood Forests In Central And Western Kentucky, Ryan W. Mccall

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Ryan W. McCall on January 25, 1999.

Rainfall Stimulation Of Primary Production In Western Atlantic Ocean Waters: Roles Of Different Nitrogen Sources And Co-Limiting Nutrients, Hans W. Paerl, Joan D. Willey, Malia Go, Benjamin L. Peierls, James L. Pinckney, Marilyn L. Fogel

Faculty Publications

Using shipboard bioassays, we examined the roles rainfall, individual and combined nutrients play in accelerating primary production in coastal, Gulf Stream and pelagic (Sargasso Sea) locations in the North Atlantic Ocean off North Carolina, USA, from 1993 to 1995. Photosynthetic CO₂ fixation and net chlorophyll a (chl a) production were measured In replicated bioassays to assess individual and combined impacts of different constituents of atmospheric deposition, including natural rainfall, a synthetic rain mix, dissolved inorganic nitrogen (DIN; NH₄⁺ ,NO₃^-), dissolved organic nitrogen (DON; urea),phosphorus (PO₄^3-) and iron (as EDTA-chelated and …

Fungus - Nothing Cute About Fairy Rings, Dennis Hinkamp

All Archived Publications

No abstract provided.

Mechanisms Of Immunotherapeutic Intervention By Anti-Cd40l (Cd154) Antibody In An Animal Model Of Multiple Sclerosis, Laurence M. Howard, Amy J. Miga, Carol L. Vanderlugt, Mauro C. Dal Canto, John D. Laman, Randolph J. Noelle, Stephen D. Miller

Dartmouth Scholarship

Relapsing experimental autoimmune encephalomyelitis (R-EAE) in the SJL mouse is a Th1-mediated autoimmune demyelinating disease model for human multiple sclerosis and is characterized by infiltration of the central nervous system (CNS) by Th1 cells and macrophages. Disease relapses are mediated by T cells specific for endogenous myelin epitopes released during acute disease, reflecting a critical role for epitope spreading in the perpetuation of chronic central CNS pathology. We asked whether blockade of the CD40–CD154 (CD40L) costimulatory pathway could suppress relapses in mice with established R-EAE. Anti-CD154 antibody treatment at either the peak of acute disease or during remission effectively blocked …

Filberts - Nutty Trees, Shrubs And "Trubs", Dennis Hinkamp

All Archived Publications

No abstract provided.

The Effect Of Using Hemicellulase And Oxidase Successively As Pre-Bleaching Agents For Hardwood Kraft Pulp, Bryan R. Moore

Honors Theses

Environmental concerns have applied pressure on the paper industry to change many erstwhile processes that have traditionally remained unchallenged. One process in particular is pulp bleaching. Elemental chlorine, while effective in bleaching pulp and low in capital cost, is a major environmental threat because of the toxic chlorinated compounds and other dioxins that are generated in mill effluents. With increasing technology and demand, there has been much research devoted to the development of alternate bleaching sequences, whether Elemental Chlorine Free (ECF), which can use Chlorine Dioxide (ClO₂), or Totally Chlorine Free (TC). THe wide acceptance of these bleaching …

Meeting Minutes, January 12th, 1999, National Smokejumper Association Executive Committee

National Smokejumper Association Meeting Minutes

Agenda: Minutes: minutes of the meeting held l2/08/98.; Treasurer's Report: treasurer's report for 01/12/99.; NSA tax issues form 1997.; Membership: report.; Old Business: discussed the Adopt-A-Trail project progress and responses to request for volunteers.; Family purchasing a life membership as a memorial.; Alternative methods of holding the forthcoming directors election to encourage a large enough turnout to meet the 20% requirement.; Estate planning in fund raising efforts.; Sale of smokejumper manufactured items.; New Business: Action taken by the executive committee in response to the director's letter of Nov3, l998.; A need to bring the written by-laws up to date.; Next …

The Roles Of Island Area Per Se And Habitat Diversity In The Species-Area Relationships Of Four Lesser Antillean Faunal Groups, Robert Ricklefs, Irby Lovette

Biology Department Faculty Works

1. We analysed the relationships between species richness, island area, and habitat diversity for birds, bats, butterflies, and reptiles and amphibians on 19 islands in the Lesser Antilles. Habitat diversity was quantified by Simpson's index based on the total areas of five vegetation types on each island. Island area varied over two orders of magnitude (13–1510 km2) and habitat diversity varied between 1 and 3·7 equivalents of equally abundant habitat types.2. Because the Lesser Antilles consist of an inner arc of high, volcanic islands and an outer arc of low‐lying islands formed of uplifted marine sediments, correlations between area and …

Osteological Analysis Of The Killifish Genus Cynolebias (Cyprinodontiformes: Rivulidae), Marcelo Loureiro, Rafael O. De Sá

Biology Faculty Publications

Relationships among the species of the annual fish Cynolebias are unclear. An analysis of the variation and utility of osteological characters for phylogenetic analysis was done using cleared and double-stained specimens representing 21 species of Cynolebias. This analysis showed that some of the characters previously used to diagnose this genus and some of the species are polymorphic. Osteologically, Cynolebias can be diagnosed by the following synapomorphies: (1) triangular-shaped parietal, (2) vomer positioned ventral to the parasphenoid, (3) long ventral process of the dentary, (4) teeth on fourth ceratobranchial, and (5) teeth on first epibranchial. In addition, characters that help …

Legal Aspects Of Financial Distress: Refinancing Issues, J. David Aiken

Cornhusker Economics

Nebraska hog producers are currently facing prices that have reached historic lows. Some producers may be discussing financing options with their lenders and other creditors. This newsletter identifies some issues to consider when refinancing operating (and other) agricultural loans. Always consult an attorney before signing or negotiating legal documents, such as loan agreements.

A Color Guidebook To Common Rocky Mountain Lichens, Larry L. St. Clair

Books by Faculty of the Monte L. Bean Life Science Museum

This guidebook provides information about common lichens from the northern Rocky Mountains south into the Great Basin, Colorado Plateau, and the Sky Island Mountains of southeastern Arizona and southwestern New Mexico.

Table of Contents

Dedication

Acknowledgments

Introduction

• Lichens as symbiotic systems
• Morphology
• Reproduction
• Physiology and growth
• Secondary chemistry
• Ecology

Lichens as Biomonitors of Air Quality

• Overview
• Lichen sensitivity to air pollutants
• Methods of evaluating air pollution impact on lichens

Lichen Systematics

• Classification of lichens
• Essential tools for identifying lichens
• Collection and curation of lichen specimens
• Dichotomous keys to common Rocky Mountain lichens

Common Rocky Mountain Lichens (Color photographs, descriptive information, …

Intsormil 1999 Annual Report, John M. Yohe, Thomas Crawford Jr., Joan Frederick, Dorothy Stoner

INTSORMIL Impacts and Bulletins

Presently, worldwide, more than 800 million people do not get enough to eat or have access to a balanced diet to be healthy. At the World Food Summit in 1996, the United States of America (USA) and 185 other countries pledged to reduce the number of malnourished people by one half by 2015. It is shocking that about 33% of preschool children in developing countries will be stunted due to malnutrition by the year 2000. The number of stunted children in Africa alone has increased significantly from 35 million in 1980 to 45 million in 1995 and is predicted to …

Abundance Of Spiders And Insect Predators On Grapes In Central California, Michael J. Costello, Kent M. Daane

Horticulture and Crop Science

We compared the abundance of spiders and predaceous insects in five central California vineyards. Spiders constituted 98.1% of all predators collected. More than 90% of all spiders collected were from eight species of spiders, representing six families. Two theridiids (Theridion dilutum and T. melanurum) were the most abundant, followed by a miturgid (Cheiracanthium inclusum) and an agelinid (Hololena nedra). Predaceous insects comprised 1.6% of all predators collected, and were represented by six genera in five families. Nabis americoferis (Heteroptera, Nabidae) was the most common predaceous insect, with its densities highest late in the growing …