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Virus Disease Of Small Fruits, R. H. Converse

School of Biological Sciences: Faculty Publications

This illustrated handbook was compiled by international authorities on virus and viruslike diseases of small fruits. Crops covered are in the plant genera Fragaria (strawberry), Vaccinium (blueberry and cranberry), Ribes (currant and gooseberry), and Rubus (blackberry and raspberry). The history, geographic distribution, importance, symptoms, transmission, cause, detection, and control of virus and viruslike diseases attacking these crops are discussed.

Biological Features Of Saline Wetlands In Lancaster County, Nebraska, James E. Ducey

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The natural history of saline wetland areas near Lincoln, Lancaster County, was evaluated. Most remaining salt marshes occur on saline soils along Little Salt Creek. Numerous plant species of saline soils occur that are limited to this part of the State. The avifauna is diverse, with 67 species recorded during the breeding season, 47 of them breeding. Because wetlands are limited in distribution in Nebraska, key biological elements, potential threats to the areas, and management considerations are discussed.

The Characteristics And Phytogeographic Affinities Of The Flora Of Nine-Mile Prairie, A Western Tall-Grass Prairie In Nebraska, Robert B. Kaul, Steven B. Rolfsmeier

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Three hundred ninety-two species, subspecies, and varieties have been recorded at Nine-Mile Prairie, a relict tall-grass prairie that has been reduced from 323 to 97 ha in the past 50 years. There are 218 native and 17 introduced herbaceous perennial species, and 73 native and 24 introduced annuals. Analogous numbers for biennials are 15 and 11, for shrubs are 14 and one, for trees are ten and three, and for woody vines are six and none. One hundred twenty-one native species are of central and eastern North American phytogeographic affinity, and 109 are of transcontinental affinity. Seventy-nine of the Prairie's …

New And Corrected Records Of The Flora Of Nebraska, Steven B. Rolfsmeier, Robert B. Kaul, David M. Sutherland

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

New distributional data are provided for 27 species of vascular plants in Nebraska, eight newly recorded as growing wild in the State. The record of one species previously attributed to the State is shown to be based upon misidentified specimens, the range of another is shown to be much more restricted in Nebraska than previously reported, and nomenclature is corrected for two species.

Woody Plants Of The Lower Platte Valley: An Annotated Checklist, Steven J. Rothenberger

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

A botanical survey of woody plants was made within the Lower Platte Valley in Dodge, Saunders, Douglas, Sarpy, and Cass counties, Nebraska. The following checklist of 50 woody plants is based on the quantitative analysis of 21 sites within the above counties. Species description, habitat type, and frequency of occurrence is given for each species.

Anatomical Variations In The Articular Disc Of The Human Tempromandibular Joint, John M. Barton, Margaret A. Ellenbecker

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Perforations occur in the articular discs of human temporomandibular joints. They are of three types, based on location: lateral, central, and posterior. The lateral and central perforations occur in essentially equal numbers while the posterior perforations are uncommon (less than 10%). Lateral perforations occur primarily in edentulous individuals and are equally distributed between males and females. Central perforations occur most often in dentulous females. Posterior perforations occur only in edentulous persons and are equally distributed between males and females. No clear evidence of anterior disc displacement (internal derangement) was seen.

Transactions Of The Nebraska Academy Of Sciences Volume Xv (1987): Table Of Contents

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Nebraska Academy of Sciences, Officers, Policy committee ................. ii

Editorial Board ................. iv

Membership Objectives and Friends of the Academy ................. vi

Biological and Medical Sciences

Anatomical variations in the articular disc of the human temporomandibular joint (John M. Barton and Margaret A. Ellenbecker) ................. 1

Biological features of saline wetlands in Lancaster County, Nebraska (James E. Ducey) ................. 5

An ichthyological survey of Weeping Water Creek, Nebraska (David R. Golden) ................. 15

The characteristics and phytogeographic affinities of the flora of Nine-Mile Prairie, a western tall-grass prairie in Nebraska (Robert B. Kaul and Steven B. Rolfsmeier) ................. 23

Comparison …

An Ichthyological Survey Of Weeping Water Creek, Nebraska, David R. Golden

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Between September and November 1986, collections of fishes were made in Weeping Water Creek in Cass and Otoe counties of southeastern Nebraska. Eighteen sampling stations yielded a total of 2,960 specimens of 19 species and five families. The most common species, in terms of numbers of individuals, were the cyprinid minnows Notropis dorsalis, N. lutrensis, N. stramineus, Pimephales promelas, Semotilus atromaculatus, and the sunfish, Lepomis cyanellus. The number of species per station varied from three to eleven. No obvious changes are evident from a survey in 1973.

Comparison Of Plant Species Composition Of Mormon Island Crane Meadows And Lillian Annette Rowe Sanctuary In Central Nebraska, Harold G. Nagel, Ole A. Kolstad

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Mormon Island Crane Meadows (MICM) and Lillian Annette Rowe Sanctuary (LARS) are both western extensions of true prairie vegetation and are sandhill crane sanctuaries. Both are located on the Platte River, 35 km (22 mi) apart, in Central Nebraska. MICM is about 827 ha (2100 ac) and is owned by the Platte River Whooping Crane Habitat Maintenance Trust. LARS is about 324 ha (800 ac) and is owned by the National Audubon Society.

Plants were collected and vegetation was sampled with square meter cover quadrats (N=314 on MICM and 204 on LARS) in 1980 and 1981. Both areas are on …

Endangered And Threatened Wildlife And Plants; Proposal To Determine The Black-Capped Vireo To Be An Endangered Species

Endangered Species Bulletin

The Service proposes to list the black-capped vireo (Vireo atricapillus) as an endangered species under provisions of the Endangered Species Act of I973 as amended. This small bird formerly bred from Kansas through Oklahoma and Texas to central Coahuila in Mexico. The vireo population is declining. It no longer occurs in Kansas, is gravely endangered in Oklahoma where it was found in only three small areas in 1986, and is no longer found in several parts of its former range in Texas. The black-capped vireo is threatened by brown beaded cowbird (Molothrus ater) nest parasitism and …

Revised Checklist Of North American Mammals North Of Mexico, 1986, J. Knox Jones Jr., Dilford C. Carter, Hugh H. Genoways, Robert S. Hoffmann, Dale W. Rice, Clyde Jones

University of Nebraska State Museum: Mammalogy Papers

As in previous lists, orders, families, and genera are listed in conventional phylogenetic sequence mostly following Hall (1981) but, in a departure from previous lists, species are entered alphabetically within each genus. This will facilitate use of the checklist by those unfamiliar with intrageneric taxonomy. Some assemblages are not well enough understood to create a meaningful hierarchy at the specific level.

The Probe, Issue 68 - December 1986

The Probe: Newsletter of the National Animal Damage Control Association

Contents:
Elections
More Innovative Ways to Spend Money
Meetings
Mountain Lion Attacks on Two Children in California
Letters to the Editor

Proximity Nesting: The Great Horned Owl And Red-Tailed Hawk, Steve Shupe

Nebraska Bird Review

Introduction: Forty-two nests of the Great Horned Owl (Bubo virginianus) and 78 nests of the Red-tailed Hawk (Buteo jamaieensis) were surveyed during a three-year ecological study (1982–84). In 11 instances nests of the two species overlapped the hunting areas of the other. Home ranges, in which most hunting takes place, have been defined by various authors (Miller, 1930; Baumgartner, 1939; Hagar, 1967). For this study Hawks and Owls nesting within one-half mile of each other were compared. The proximity nesting of these two species seemed likely to increase the possibility of predation upon the young of …

A Revision Of The Genus Brachycoryna (Coleoptera: Chrysomelidae: Hispinae), C. L. Staines Jr.

Insecta Mundi

The generic name Brachycoryna was first published by Guerin-Meneville (1844) who at that time also described B. pumila which was the only included species (type species by monotypy). The locality data given by Guerin's material is "Carthagene" (Cartagena, Columbia). Guerin correctly receives authorship of Brachycoryna since a single .combined description of a new genus and new species published before 1930 is considered an "indication" for each name (Intern. Code 2001. Nomen., Article 12). Some authors (Weise, 1911 a,b; Papp, 1953) had assigned authorship to Baly (1885) who published the first generic description and reported B. pumila from Mexico, Guatemala, and …

Instructions For Producing Camera Ready Copy (Crc), Ross H. Arnett Jr.

Insecta Mundi

Papers submitted for publication in INSECTA MUNDI must be ready for page make-up. If the author(s) cannot produce CRC, the publisher will have the manuscript computer composed using typewriter style type with right hand margin justification. Charges for typesetting will be given when the manuscript is submitted.

Rearing Blister Beetles (Coleoptera, Meloidae), Richard B. Selander

Insecta Mundi

The receipt, recently, of several requests for information and assistance in rearing blister beetles (Meloidae) has prompted me to prepare the following account of the rearing method used in my laboratory. In order to make the account as useful as possible to new students. I have included a considerable amount of information on meloid bionomics. Larval phases are designated as triungulin (TI, first grub (FG), coarctate (C), and second grub (SG). Where necessary, instar is indicated by a numerical subscript. The pupa and adult are symbolized by P and A, respectively. 1 assume that the reader has some knowledge of …

A North Florida Ant Fauna (Hymenoptera: Formicidae), Clifford Johnson

Insecta Mundi

This paper updates and summarizes the ant fauna of Alachua County, Florida, with two basic objectives. The first objective is presentation of a current, documented check-list consistent with existing taxonomy and an insight on species groups where taxonomic changes are likely in subsequent revisions. The second objection objective seeks to identify changes in the fauna since Van Pelt’s pioneer survey of 1948, and provide a basis for similar comparisons in the future.

The county consists of 902 square miles in north-central Florida and embraces essentially all inland habitats of the northern peninsula. This rich habitat variability is reflected in its …

Diplocentrus Colwelli, A New Species Of Scorpion From Northern Mexico (Diplocentridae), W. David Sissom

Insecta Mundi

Presently, only a single species of the genus Diplocentrus is known from northeastern Mexico, D. whitei (Gervais) (Hoffman 1931 ). This species is dark brown to black and is quite large, with adults 65-75 mm long. Recent collecting in the mountains near Monterrey and El Potosi, Nuevo Leon, Mexico has revealed the presence of a much smaller, more lightly-colored species. The description of this new species is the subject of the present paper.

Nomenclature and mensuration essentially follows that of Stahnke (1970), with the following exceptions: carinal terminology and cheliceral measurements are after Francke (1975, 1977) and trichobothrial terminology is …

The Prairie Naturalist Volume 18, No. 4. December 1986

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

EFFECT OF CULTURAL TREATMENTS ON REGENERATION OF NATIVE WOODLANDS ON THE NORTHERN GREAT PLAINS ▪ D. W. Uresk and C. E. Boldt

VASCULAR PLANTS OF OAKVILLE PRAIRIE, NORTH DAKOTA ▪ V. L. Facey

FOOD HABITS OF CATTLE ON MIXED-GRASS PRAIRIE ON THE NORTHERN GREAT PLAINS ▪ D. W. Uresk

A COMPARISON OF BURN SEASON EFFECTS ON NESTING BIRDS IN NORTH DAKOTA MIXED-GRASS PRAIRIE ▪ K. F. Higgins

COMPARISON OF WETLAND DRAINAGE DURING AND AFTER PROTECTION BY 20-YEAR EASEMENTS ▪ K. F. Higgins …

Bibliography Of The World Literature Of The Bethylidae (Hymenoptera: Bethyloidea), Bradford A. Hawkins, Gordon Gordh

Insecta Mundi

The Bethylidae are a primitive family of aculeate Hymenoptera which presently consists of about 2,200 nominal species. They are worldwide in distribution and all species are primary, external parasites of Lepidoptera and Coleoptera larvae. Due t o their host associations, bethylids are potentially useful for the biological control of various agricultural pests in the aforementioned groups. Unfortunately, the true potential of bethylids in applied biological control cannot be ascertained now because they have been used infrequently. Some species show strong promise, but t h e i r use is handicapped by a relative lack of basic taxonomic and biological knowledge. …

Stings Of Ants Of The Tribe Pheidologetini (Myrmicinae), Charles Kugler

Insecta Mundi

The definition of the Tribe Pheidologetini in the ant subfamily Myrmicinae has always been problematic. Emery (1922) erected the tribe to contain the genera Pheidologeton, Oligomyrmex, Aneleus, Lophomyrmex, Trigonogaster, Ekebomyrma, Carebara and Paedalgus, but Wheeler (1922) put all these genera in the Solenopsidini. Neither Emery nor Wheeler satisfactorily defined either tribe. More recently, Ettershank (1966) proposed the “Pheidologeton genus group” composed of Pheidologeton, Oligomyrmex (including most Aneleus) , Lophomyrmex, Carebara, Paedalgus and Anisopheidole, but still uncertainty remains as to relationships of these genera and even the definitions of the genera themselves. New characters and new means of analysis are needed …

Anzora And Dworena, Two New Genera Erected For Australian Species Formerly Placed In Paratella And Sephena. (Homoptera: Fulgoridae), John T. Medler

Insecta Mundi

The genera Paratella and Sephena were established by Melichar (1902) for complexes of species having distribution principally in New Guinea. However, three of Melichar’s new species of Paratella, i.e., fumaria, fusconigra and modesta, were known only from localities in Australia and/or New Zealand. Kirkaldy (1906) described Sephena argue, cinerea and rubida from specimens collected in Australia. He commented that they had the appearance of Paratella while having the characters of Sephena assigned by Melichar.

Melichar (1923) and Metcalf (1957) each retained the above named species in Paratella and Sephena The type specimens of the species named above were examined in …

The Fricke Dosimeter As A 1-Hit Detector, Robert Katz, G. L. Sinclair, M. P. R. Waligorski

Robert Katz Publications

A fit to the experimental data for the response of the Fricke dosimeter to energetic heavy ions is obtained using a calculation of the relative effectiveness of a 1-hit detector, from track theory. We use 2 fitted parameters, the target size, a₀, which may be thought to represent a “diffusion length,” and E₀, the dose of gamma-rays at which there is an average of one hit per target (the D-37 dose), and a new algorithm for the average radial distribution of dose in liquid water from the passing ion. The G value for ions is then …

The Radial Distribution Of Dose Around The Path Of A Heavy Ion In Liquid Water, M. P. R. Waligorski, R. N. Hamm, Robert Katz

Robert Katz Publications

Monte Carlo calculations of the radial distribution of dose in liquid water, incorporating energy deposition due to primary excitations and ionizations, have been performed for protons of energy 1, 10, 20, 50, and 100 MeV. By combining these results with earlier semi-empirical formulae used in track structure theory calculations, a corrected analytic formulation has been developed which on radial integration closely reproduces the value of stopping power for protons in the energy range 0.1–1000 MeV. After including a β-dependent ‘effective charge’ formula, this corrected formulation is tested against all published measurements of radial distribution of dose from energetic ions in …

Crop Residue Effects On Soil Environment And Dryland Maize And Soya Bean Production, J. F. Power, Wallace Wilhelm, J. W. Doran

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

The research reported here provides data on the effects of crop residues on the surface of no-till soil upon the soil environment and resulting biological activity, including crop growth. For maize (Zea mays L.) and soya bean [Glycine max (L.) Merr.] production in eastern Nebraska, U.S.A. (4 years of data), increasing crop residue rate decreased maximum soil temperatures at the soil surface by at least 5°C, and generally increased soil water storage by at least 50 mm. Availability and uptake of nitrogen from the soil organic matter and applied fertilizers (and for soya bean from decomposition of crop …

Wpa News 14 (1986), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (November 1986), number 14

Published by the World Pheasant Association

Runoff And Erosion As Affected By Sorghum And Soybean Residue, John E. Gilley, S. C. Finkner, G. E. Varvel

Department of Agricultural and Biological Systems Engineering: Faculty Publications

A rainfall simulator was used to measure the effects of varying rates of sorghum and soybean residue on runoff and erosion. In general, increased surface cover caused reduced runoff, sediment concentration and soil loss. Substantial reductions in erosion resulted from the use of small amounts of crop residue. Regression equations were obtained which related surface cover to residue mass. Equations describing relative runoff, sediment concentration and soil loss as a function of surface cover were also developed. Runoff, sediment concentration and soil loss were all found to be highly correlated to surface cover.

Temporal Constancy In Grasshopper Assemblies (Orthoptera: Acrididae), Anthony Joern, Kenneth P. Pruess

Department of Entomology: Faculty Publications

1. Temporal constancy in the structure of grasshopper assemblies (about forty-five species each) from two types of North American grasslands was assessed; one site was followed 25 years and the other 7 years.

2. Densities and relative abundances varied but composition of assemblies based on ranks suggested significant structure when three or more species were included in the analysis.

3. Results compared favorably with other insect herbivore assemblies which have been examined; variability in population change was intermediate along the spectrum of organisms which have been studied.

What Sex Is Your Parachute? Interest Inventory/Counseling Models And The Perpetuation Of The Sex/Wage Segregation Of The Labor Market, Helen A. Moore, Jane Ollenburger

Department of Sociology: Faculty Publications

This article explores the “gender model” of job research instruments that are based on the Holland Occupational Classification scheme. The six Holland “environments” constitute a ubiquitous base for tests and measures in career counseling and research. Analysis of the 1973 Quality of Employment Survey provides evidence that the Holland Classification scheme replicates the segmentation of women into certain occupations that generate low pay, even after controlling for worker education, job tenure, and age. Comparable data for male wage earners show a significant segregation away from low-income, predominantly female occupations. Thus the Holland occupational scheme and the instruments based upon it …

Uptake Of Nitrogen From Soil, Fertilizer, And Crop Residues By No-Till Corn And Soybean, J. F. Power, John W. Doran, Wallace Wilhelm

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

The relative availability of nitrogen (N) from indigenous soil organic N, immobilized fertilizer N, currently applied fertilizer N, and crop residues is largely unknown. A non-irrigated experiment was conducted on a silty clay loam at Lincoln, NE, with both continuous soybean [Glycine max (L.) Merr.] and corn (Zea mays L.), in which crops were produced with no tillage after surface application of 0, 0.5,1.0, or 1.5 times the quantity of aboveground crop residue produced the previous year. In 1980 and 1981, depleted ¹⁵N NH₄NO₃ (at 45 kg N ha^-1) and crop residues …