Life Sciences Commons^™

Verbena Stricta Vent., John E. Ebinger

Specimens by Name

No abstract provided.

Cropwatch No. 99-17, July 9,1999, Lisa Brown Jasa

Crop Watch (1994–2005)

Inside

Field updates…………..150

Wheat harvest lags…………..151

Western bean cutworms…………..152

Milk jug trap…………..152

Soybean yield loss…………..154

Weeds in wheat…………..154

Insect updates…………..154

Greensnap revisited…………..155

Sustainable ag tours…………..156

Hexapod Herald - Vol. 11, No. 3, July 7, 1999

Hexapod Herald and Other Entomology Department Newsletters

Calendar of events

Grants

Open letter from Sharron Quisenberry

Congratulations

Welcome

Faculty news

Graduate student news

Publications

Travel

From the office

Phyla Lanceolata (Michx.) Greene, John E. Ebinger

Specimens by Name

No abstract provided.

Morus Alba Var. Tatarica (L.) Ser., John E. Ebinger

Specimens by Name

No abstract provided.

Verbena Urticifolia L., John E. Ebinger

Specimens by Name

No abstract provided.

Meeting Minutes, July 2nd, 1999, National Smokejumper Association Executive Committee

National Smokejumper Association Meeting Minutes

Agenda: Called the meeting to order.; The minutes from the 15 June meeting were not read.; The Treasurer's report was dispensed with.; The membership report was dispensed with.; No old business was brought forth.; The purpose of the meeting was to facilitate the change in NSA webmasters.; Reviewed changes that would make the website more user friendly.; Wrote a personal check so that he could begin work immediately.; Each section of the current website was reviewed at length.; Meeting adjourned.;

Cropwatch No. 99-16, July 2,1999, Lisa Brown Jasa

Crop Watch (1994–2005)

Inside

Field updates………….142

Rootworm, corn and wind………….143

Diagnostic update………….143

Weather trivia………….144

First irrigation………….145

Accessing TE, GDD data………….145

Balance update………….146

Weed control in pastures………….147

Crop and precip updates………….148

The Rise And Fall Of African American Midwifery In The South, Nicole M. Bernard

Electronic Dissertations and Theses

The purpose of this thesis is to give insight into the role played by the African American midwife in the rural south, including Louisiana, Alabama, Texas, and Florida. The African American midwife was responsible for prenatal care, delivery, and a certain degree of postnatal care for the mother and the infant. During slavery, she was all that the slaves had. The African American midwife also aided in delivery of some of the whites as well in a time when blacks were considered to be no more than animals. This proves that the African American midwife was more than a savage …

Effects Of Lead Nitrate Contaminated Soil On Tagetes Erecta (Marigolds), Deetra Dianne Washington

Electronic Dissertations and Theses

This study was developed to determine the effects of lead nitrate on marigold (Tagetes erecta) plants and to determine if these plants could phytoremediate or uptake lead nitrate from the soil. Phytoremediation is a low cost-effective means of reduction or removal of environmental contaminants by plants from the environment and is currently being investigated for many remediation applications. The objectives of this research were to: 1) determine the toxicity of lead nitrate on T. erecta by exposure of the plants to varying concentrations of lead nitrate (0.1-1000 ppm); 2) determine the effects of lead nitrate on the growth and development …

A Genetic Analysis Of The Relationship Between Life-History Variation And Heat-Shock Tolerance In Drosophila Buzzatii, Robert A. Krebs, Volker Loeschcke

Biological, Geological, and Environmental Faculty Publications

Although exposure to environmental stress is common in most populations, and the physiological effects of stress on individuals are well studied, the evolutionary importance of stress to populations is not well understood. To address multitrait responses to environmental change and potential constraints on character evolution, we analysed, in 100 isofemale lines of Drosophila buzzatii, the genetic relationships between resistance to a short heat shock and several life-history traits: survival in benign conditions, larval developmental time, fecundity and longevity. Estimates of heritability of larval thermotolerance were low, but significant, and all life-history traits varied significantly among isofemale lines. Several of …

Different Proctolin Neurons Elicit Distinct Motor Patterns From A Multifunctional Neuronal Network, Dawn M. Blitz, Andrew E. Christie, Melissa J. Coleman, Brian J. Norris, Eve Marder, Michael P. Nusbaum

WM Keck Science Faculty Papers

Distinct motor patterns are selected from a multifunctional neuronal network by activation of different modulatory projection neurons. Subsets of these projection neurons can contain the same neuromodulator(s), yet little is known about the relative influence of such neurons on network activity. We have addressed this issue in the stomatogastric nervous system of the crab Cancer borealis. Within this system, there is a neuronal network in the stomatogastric ganglion (STG) that produces many versions of the pyloric and gastric mill rhythms. These different rhythms result from activation of different projection neurons that innervate the STG from neighboring ganglia and modulate STG …

Diversity Of Microorganisms Isolated From Amber, C. L. Greenblatt, A. Davis, B. G. Clement, Christopher Kitts, T. Cox, Raul J. Cano

Biological Sciences

Claims that organisms can be cultured from amber, if substantiated, would be significant contributions to our understanding of the evolution, tenacity, and potential spread of life. Three reports on the isolation of organisms from amber have been published. Cano and Borucki recently reported the isolation of Bacillus sphaericus and Lambert et al. have described a new species designated Staphylococcus succinus from 25–40 million year old Dominican amber. These characterized organisms were phylogenetically distant from extant relatives and the Staphylococcus sp. sufficiently far removed from other extant staphylococci to be considered a new species. Here we report the culture of bacteria …

Farming Exotic Mushrooms In The Forest, Deborah B. Hill

Agroforestry Notes (USDA-NAC)

One income opportunity derived from forest farming is the production of exotic mushrooms. Many of these edible mushrooms, such as shiitake (Lentinula edodes), maitake (Grifola frondosa), lion's mane (Hericium erinaceus, and oyster (Pleurotus spp. feed on the cellulose and lignin in wood. Although a significant volume of these mushrooms is produced under artificial conditions on a substance of sawdust, grains and other supplements, production on logs results in firmer texture and more flavor.

Production of high-value mushrooms on small diameter logs of almost any hardwood species enables a private forest landowner to utilize …

Forest Production Of Goldenseal, Jeanine M. Davis

Agroforestry Notes (USDA-NAC)

Goldenseal (Hydrastis canadensis L.) is a valued medicinal herb which has been collected from hardwood forests in eastern North America for hundreds of years. The historical range for goldenseal is north into Canada, south to Alabama, and west to Kansas. Overharvesting of goldenseal has caused serious reductions in populations reported in Illinois, Ohio, Indiana, and eastern Kentucky. In 1997, goldenseal was listed on Appendix II of the Convention for International Trade on Endangered Species (CITES), an international treaty monitoring trade in threatened and endangered species. Designed to protect the species, this listing imposed controls on goldenseal trade. This …

Economics And Marketing Of Ginseng, Robert L. Beyfuss

Agroforestry Notes (USDA-NAC)

It is extremely important to learn about the economic potential of the various types of ginseng and how to market the product prior to growing it. Raising ginseng is something that a patient person who enjoys growing things can find interesting and potentially profitable but, it requires hard work, at least a small capital investment, and it certainly is not a sure thing. This Agroforestry Note will familiarize readers with some economic considerations and marketing tips. For specific information about growing ginseng refer to AF Note Forest Farming -3, American Ginseng Production in Woodlots.

Draft Shark Bay Pink Snapper Management Plan 1999, Fisheries Western Australia.

Fisheries Management Papers

This draft management plan was prepared by the Fisheries Department on 12 July 1999 for the Minister for Fisheries for the purpose of facilitating consultation in resepct of the proposal by the Minister to determine a new Management Plan for the Shark Bay Pink Snapper Fishery.

The Translocation Of Barramundi. A Discussion Paper., Makaira Pty Ltd

Fisheries Management Papers

There is recognisable economic benefit to the translocation of barramundi, but there is also a need to ensure the translocation will not adversely impact upon the genetic diversity, introduce disease or impact on the natural environment and biodiversity. This discussion paper has been prepared to provide information to assist in the assessment of the possible impact of translocation of barramundi into and within Western Australia, for the purposed of recreational stock enhancement, aquaculture development and domestic stocking. In contemplating the translocation any aquatic species, signigicant economic and social benefits must be balanced with biological and environmental risks; that is, the …

Fisheries Research Report No. 111 - Sea Temperature Variability Off Western Australia 1990 To 1994, Alan Pearce, Mark Rossbach, Marion Tait, Rhys Brown

Fisheries Research Reports

Analysis of temperature data from coastal waters between Shark Bay and Cape Mentelle has shown the main features of temporal and spatial variability in temperature along the Western Australian coastline. Three distinct periods of variability emerge: the annual cycle (peak temperatures generally in January-February and troughs in July-August), a few-day (weatherrelated) cycle, and the diurnal pattern.

Summer temperatures range from 24° C (South Passage) to 19° C (Cape Mentelle), and winter temperatures from 21° C (South Passage) to 16° C (Marmion). Mean annual temperature ranges (winter minimum to summer maximum) are between 3° C (South Passage) and 7° C (Alkimos), …

Positions In The 30s Ribosomal Subunit Proximal To The 790 Loop As Determined By Phenanthroline Cleavage, Gregory W. Muth, Scott P. Hennelly, Walter E. Hill

Biological Sciences Faculty Publications

Positioning rRNA within the ribosome remains a challenging problem. Such positioning is critical to understanding ribosome function, as various rRNA regions interact to form suitable binding sites for ligands, such as tRNA and mRNA. We have used phenanthroline, a chemical nuclease, as a proximity probe, to help elucidate the regions of rRNA that are near neighbors of the stem-loop structure centering at nt 790 in the 16S rRNA of the Escherichia coli 30S ribosomal subunit. Using phenanthroline covalently attached to a DNA oligomer complementary to nt 787-795, we found that nt 582-584, 693-694, 787-790, and 795-797 were cleaved robustly and …

Effects Of Fire On The Demography Of The Endangered, Geophytic Herb Silene Spaldingii (Caryophyllaceae), Peter Lesica

Biological Sciences Faculty Publications

Understanding the effects of disturbances such as fire on plant demography helps elucidate the mechanisms that cause changes in community composition. I studied the effects of spring and fall fires on Silene spaldingii, an endangered perennial herb of grasslands in northwest Montana. Individual S. spaldingii plants were mapped, and size and flowering were recorded for 1 yr prior and 5 yr subsequent to the burn treatments. Enhanced seedling recruitment (70–410%) and a 22% increase in population size were the principal effects of fire on S. spaldingii, and fall burn plots had lower recruitment than spring burn plots. These effects were …

Fish & Wildlife News: July/August 1999

Fish and Wildlife News

Contents:

Bald Eagle Soaring to Recovery 2
New Directorate Appointments 3
Biologists Discover Lynx Kittens 7
Preview National Wildlife Refuge Week 9
Refuge Management Goes Under the Sea 13
Learning About Fisheries in Region 1 14
Student Career Program Fulfills a Promise 18
Service Reaches Out to Ranchers 21
FWS and Tribes: Partnership Success Story 21
Tracking the Elusive Sage Grouse 24
New Feature: Fish & Wildlife Honors... 30
Fish & Wildlife...In Brief 31

Center For Grassland Studies Newsletter, Summer 1999, Volume 5, No. 3

Center for Grassland Studies: Newsletters

Contents:

Managing Intensively Used Turfs by Robert (Bob) Shearman, Department of Horticulture, UNL

Management Practices and Plant Diversity on Some Privately-Owned Meadows in the Middle Loup River Valley by Steven Rothenberger, Department of Biology, University of Nebraska at Kearney

Grassland Ecology Is Theme of CGS Seminar Series

Grazing Lands Technical Assistance Available

Rancher's Forum October 6

Regional Grazing Project Approved

Moderate Grazing Promotes Plant Diversity

Looking for a Few Good Forage Publications

Miscellaneous Publication 37/99 - Codes Of Practice For Vegetable Production On The Swan Coastal Plan, N. Lantzke, A. Galati

Horticulture published reports

Codes of practice contain information on good management practice and set viable limits to inputs such as fertilisers and irrigation, so as to minimise environmental impact. They are written by growers, they need to be regularly updated, and they deal with aspects of horticulture that have environmental and social impact/consequence.

The vegetable industry was worth about $162 million to the State in 1994/95. The Swan Coastal Plain produces over 58 per cent of the State's vegetable production. Western Australia is also the leading State for vegetable exports in Australia. The major crops grown on the coastal plain include potatoes, carrots, …

American Society Of Parasitologists Newsletter, V. 21, No. 2, [Summer 1999], Scott Lyell Gardner

American Society of Parasitologists: Newsletter

An issue of the American Society of Parasitologists' quarterly newsletter, also called the Journal of Parasitology Newsletter.

Density-Dependent Effects Of A Toxicant On Life-History Traits And Population Dynamics Of A Capitellid Polychaete, Inez Linke-Gamenick, Valery E. Forbes, Richard M. Sibly

Valery Forbes Publications

The toxic effects of the widespread polycyclic aromatic hydrocarbon (PAH), fluoranthene (FLU), on Life-history traits of Capitella sp. M as a function of population density were investigated in a life-table-response-experiment (LTRE) lasting 134 d. Animals from laboratory cultures were exposed to 6 different FLU concentrations (range 0 to 80 μg FLU [g dry wt sed]^–1, ppm) at 3 population densities (range 529 to 36 842 worms m^–2), and survivorship, growth rate until maturity, and reproductive parameters were recorded. Fluoranthene exposure significantly reduced juvenile survivorship in a concentration- dependent manner, whereas population density had no effect on …

Forage News [1999-07], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Forage/Beef Field Day
• UK Forage Stops Highlight Research
• Eden Shale Research Highlight
• Grazing Management for Eastern Gamagrass
• Does Number of Plant Species in a Pasture Matter
• Sward Composition Changes in Response to Stocking Rate and Method
• Upcoming Events

Louisiana Agriculture Summer, 1999, Lsu Agcenter

Louisiana Agriculture

No abstract provided.

Nebline, July 1999

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

A day at the fair: Is competition good or bad?
Vegetable gardening in the fall
1999 “Plants of the Year” recommended for Nebraska
Water use in the landscape
Watch for Squash Vine Borer
Powdery mildew on ornamentals
Are you afraid of snakes? spiders? insects?
Master beekeeping and queen rearing workshops
Tread carefully when hiking in Nebraska: watch for poisonous snakes
Fertilizing grass pastures and hay lands-Part 2
Scouting for rootworm beetles could save big money next year
Be alert to the danger; poison hemlock abounds this year
Tips for late summer alfalfa planting
Field day will feature profitable crops and …

Challenges For Directors Of University Natural Science Museums, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Universities and natural science museums have a long, productive history; however, this has been an uneasy alliance in the United States at least since the 1880s. Decreasing resources and increasing expectations have made the position of all museum directors extremely difficult, but the situation for university natural science museum directors is probably the most complicated among these because they direct museums that are small administrative units within larger university organizations. Some of their challenges include conflict between museum and university missions, governance issues, relationship between director and the university administrator/board member, lack of understanding of museum functions, middle management role …