Life Sciences Commons^™

Dna Assisted Selection – A Realistic Perspective, Daniel Pomp

Range Beef Cow Symposium

Breathtaking advances are occurring in the knowledge and understanding of the structure, sequence and function of DNA. The entire genetic blueprint, or DNA code, has now been deciphered for humans, mice and a variety of other organisms. This modern-day “Genomic Revolution” may be one of the most important periods in the scientific history of humankind, promising diagnostics and therapeutics for numerous diseases and maladies.

In animal agriculture, and particularly in beef cattle improvement, the payoffs of the “Genomic Revolution” have seemingly been few and far between. DNA information on cattle is now routinely used for determining parentage and for quality …

Objective Development Of Grazing Strategies, Patrick E. Reese

Range Beef Cow Symposium

A grazing strategy is a plan for accomplishing a set of objectives based on comprehensive knowledge of available resources, and the production and marketing environment. Management can be greatly simplified when grazing strategies are based on clearly stated and prioritized resource-management and livestock-production objectives (Fig. I ). Decisions on when and how to use plant resources have profound effects on the success of grazing strategies. Plant resources can be used for livestock production or wildlife cover and ecosystem functions such as hydrologic condition and site stability.

While many rangelands in the central and northern Great Plains are dominated by grasses …

A Systems Approach To Production From Weaning To Harvest, Terry J. Klopfenstein, D. J. Jordon, Galen E. Erickson

Range Beef Cow Symposium

Although some summer and fall calving occurs, the majority of calves in the Northern States are born in the spring. Therefore, to have a consistent supply of feeders entering feedlots, a variety of stocker programs are used. About 30% of calves produced in the U. S. enter the feedlot as calf-feds. Some of these calf-feds are weaned and enter the feedlot 30 to 40 days later. It is also common for calves to be backgrounded two to six months before entering the feedlot.

Many calves enter yearling programs. These cattle are nutritionally restricted to varying degrees and for various times. …

Considerations When Selecting A Calving Season, Connie R. Quinn

Range Beef Cow Symposium

Every ranch is backed by a unique set of resources. The resources are used to cost effectively produce a consumer acceptable product. Ranch resources can be simply categorized into forage base, genetics base and the commitment to good management practices. Range cattle management must be based on relating forage quality and quantity to the nutrient requirements of the animal for a given level of production. In order to be cost effective it is important that the forage base optimally express the genetic potential of the cowherd, with little or no supplemental feed.

Today’s rancher, according to Jim Gosey of the …

A Cowboy’S Guide To Building Teams, Tom G. Field, Michael G. Hays

Range Beef Cow Symposium

One of the daunting challenges facing the cattle industry in the near term is the ability to attract and retain skilled and effective human resources to the ranching business. We currently have at our disposal vast amounts of information about marketing, health, reproduction, nutrition, genetics, forage management, and financial decision-making to create and sustain a viable cow-calf, stocker, or feedlot business. In fact, any of the existing enterprise managers in the industry likely excel in a majority of the aforementioned topics. However, one of the major obstacles to success in agriculture is a failure to recognize that human beings are …

University Of Nebraska Board Of Regents/ Academic Affairs Committee: Engagement With Community, John Owens

John Owens: Speeches and Appearances

Board of Regents and President Smith: It's a real pleasure to be able to discuss the University's role in engagement with you today on behalf of the four campuses that comprise the University of Nebraska.
In preparing this presentation I've drawn heavily upon the Kellogg Commission's report, entitled: "Returning to our Roots - The Engaged Institution," and the Michigan State University guidebook for planning-and-evaluating quality outreach, which is entitled: "Points of Distinction." I think both publications offer valuable insights as we explore the University's role as an engaged-partner with Nebraska.

Nebraska Cattlemen/Nebraska Cattle Women Conference, John Owens

John Owens: Speeches and Appearances

I’m so pleased to be here with you today, and I look forward to visiting and working with members of this group now and in the future. Since arriving in Nebraska nearly a year ago now on a snowy, blustery day, I’ve been delighted to take every opportunity that comes my way to get to know Nebraska and Nebraskans better. I want to know what you think are Nebraska’s greatest needs, now and in the future. I want to know how you think the University of Nebraska Institute of Agriculture and Natural Resources can help meet those needs. I seek …

Arboles Trabajando En Beneficio De La Ganaderia

Working Trees (USDA-NAC)

Éstos son, árboles que se utilizan en conservación y sistemas de producción en fincas y ranchos. Estos árboles tienen un trabajo que realizar, sea aumentar los ingresos, proteger los recursos naturales o hacernos disfrutar un poco más de nuestras vidas. “Árboles trabajando” es un lema usado para promover la ciencia y práctica de la agroforestería. Agroforestería es un término que agricultores y dasónomos han definido para incluir la mayoría de las prácticas en las que se integran árboles y arbustos de forma intencional junto con un cultivo, forraje u operaciones de ganadería. Prácticas tales como rompevientos, bosques ribereños de amortiguamiento, …

New Species Of Hemiphileurus Kolbe (Coleoptera: Scarabaeidae: Dynastinae) From Mexico, Guatemala, Colombia, And Brazil, Brett C. Ratcliffe

University of Nebraska State Museum: Entomology Papers

The following new species of Hemiphileurus are described: H. bispinosus Ratcliffe from Brazil, H. deslislesi Ratcliffe from Colombia, H. quadridentatus Ratcliffe from Guatemala, and H. warneri Ratcliffe from Mexico. The parameres of H. rugulosus Endrödi (Venezuela and Colombia) are illustrated to enable easier identification of this species, and H. kahni Dupuis and Dechambre is redescribed and recorded from Brazil for the first time. Diagnostic illustrations of the male parameres are provided for the above taxa. A checklist for all the species in the genus is given.

Se describen las siguientes nuevas especies de Hemiphileurus: H. bispinosus Ratcliffe de Brasil, …

Chronic Exposure Of The European Corn Borer (Lepidoptera: Crambidae) To Cry1ab Bacillus Thuringiensis Toxin, Josette Chafaux, Maryvonne Seguin, Jeffrey J. Swanson, Denis Bourguet, Blair D. Siegfried

Department of Entomology: Faculty Publications

Transgenic corn expressing the insecticidal toxin from Bacillus thuringiensis Berliner is gaining support as an effective control technology for use against lepidopteran pests, particularly European corn borer, Ostrinia nubilalis Hubner (Lepidoptera: Crambidae). However, there is concern that widespread adoption of transgenic plants will rapidly lead to B. thuringiensis toxin resistance. Thus, long-term selection of O. nubilalis populations with the Cry1Ab B. thuringiensis toxin has been undertaken in several laboratories in the United States and in Europe. We present results from two independent selection experiments performed in laboratories at the University of Nebraska and at the Institut National de la Recherche …

Resistance Of Commercial Hybrids And Lines Of Sorghum, Sorghum Bicolor (L.) Moench., To Diatraea Saccharalis (Fabr.) (Lepidoptera: Pyralidae), Jose M. Waquil, Jose A. S. Rodrigues, Fredolino G. Santos, Alexandre S. Ferreira, Francys M. F. Vilella, John E. Foster

Department of Entomology: Faculty Publications

Commercial sorghum hybrids and Embrapa’s lines were evaluated regarding resistance to sugarcane borer. Two field experiments were conducted in Sete Lagoas, MG, under natural infestation, during the second cropping season in a randomized complete block with 3 replicates. The plants were evaluated regarding to stand, maturity cycle, plant height, and number of broken or lodging stalks and yield. The borer incidence, number of galleries, number of healthy and damaged nodes were also evaluated to calculate the Infestation Index and Intensity Infestation Index. Among the commercial sorghum hybrids, Br 304 and CMSXS 9701 were the least infested wile Z 732 and …

Septum Formation In Aspergillus Nidulans, Steven D. Harris

Department of Plant Pathology: Faculty Publications

Filamentous fungi form multicellular hyphae that are partitioned by septa. In A. nidulans, septum formation requires the assembly of a septal band following the completion of mitosis. Recent observations show that this band is a dynamic structure composed of actin, a septin and a formin. In addition, assembly is dependent upon a conserved protein kinase cascade that regulates mitotic exit and septation in yeast. Hyphal differentiation may reflect the regulation of this cascade by cyclin-dependent kinase activity. In this review, the dynamics and regulation underlying the assembly of the septal band are discussed.

Index From Nebraska Bird Review December 2001 Volume 69 Number 4

Nebraska Bird Review

INDEX (12 pages) A-Z

Adams, Betty 23

Alexander, Irene 23

Allen, Elizabeth 3, 47,159

Allison, Mary 22

American, Redstart 184

Amiotte, Sue 48

Andrews, Ron 5

Anhinga 161

Arizona 96

Avocet, American 37, 57, 94, 116, 140, 169, 204

Babbitt, Charles E. 133

Bachel, Elaine 47

Badura, Laurel 47, 160

Barth, Roland 48

Bedows, Elliott 23, 107, 159

Beede, Dillon 22

Benson, Joan 18

Bielenburg, Warren 23

Yellowlegs
Greater 37, 46, 57, 116, 142, 146,148,169
Lesser 38,46, 57, 116, 133, 136-137,140,142,147,169
sp. 204

Yellowthroat, Common 40, 73, 128, 151,158,185

Young, Kay 23

Masthead From Nebraska Bird Review December 2001 Volume 69 Number 4

Nebraska Bird Review

The Nebraska Bird Review (http://rip.physics.unk.eduINOU/) is published quarterly by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $14.00 in the United States; $18.00 for all foreign countries, payable in advance. Single copies are $4.00 each, postpaid, in the United States, and $5.00 elsewhere. Send orders for back issues to Mary Prichard, NOU Librarian, University of Nebraska State Museum, Lincoln, NE 68588-0514.

Memberships in NOU (on a calendar year basis only): Active, $15.00; Sustaining, $25.00; Student, $10.00; Family Active, $20.00; Family Sustaining, …

Fall Field Report, August-November 2001, W. Ross Silcock

Nebraska Bird Review

This Fall Report offers something for everybody. Leading off are significant breeding reports of Ruddy Duck in the Rainwater Basin and Snowy Plover at Lake McConaughy. As observers bird more regularly in late July to early August we are finding that many species begin to move earlier than often realized. There were many reports of birds such as failed breeders, molt migrants, and early-fledged juveniles wandering about. Some of these prove tough identification challenges, too. Early birds were mostly water-related; Eared Grebe, Red-necked Grebe, Double-crested Cormorant, and Osprey, but also Prairie Falcon in the east, and Rusty Blackbird too. Some …

Nebraska Bird Review- Whole Issue December 2001 Volume 69 Number 4

Nebraska Bird Review

Table of Contents

Fall Field Report, August-November 2001 Compiled
by W. Ross Silcock ..........................158

Species Accounts.......................... 160

Bird Records of Sporting Editor Sandy Griswold on Fowl
Hunting Trips in the Sand Hills from 1887 to 1928
by J. E. Ducey ..........................190

Index for Volume 69, 1-4 ..........................212

Ard News December 2001

Agricultural Research Division: News and Annual Reports

CONTENTS:

Comments from the Dean
ARB Budget Reduction
Understanding Indirect Costs
Economic Value of Land Grant University
Undergraduate Honors Research Program
New or Revised Projects
Proposals Submitted for Federal Grants
Grants and Contracts Received October and November 2001

Replacement Name For Euchitonia Kolbe, 1894 (Coleoptera: Cerambycidae: Cerambycinae: Callichromatini), Daniel J. Heffern

Insecta Mundi

Euchitonia Kolbe, 1894, (Coleoptera: Cerambycidae) is a junior homonym of Euchitonia Ehrenberg, 1861, (Protozoa). Euchitonia Kolbe consists of four, large, uncommon species known from peninsular Malaysia, Sumatra, Borneo, and Java. Podan$ (1968) revised Euchitonia Kolbe, but omitted E. menzelii Ritsema. Subsequently, Hayashi (1978) synonymized E. malayana Podany under E. menzelii Ritsema. More recently, Hudepohl(1983) described E. constanzae but questionably placed it in the genus. Huedepohliana, nomen novum, is proposed to replace Euchitonia Kolbe. The following new combinations are created: Huedepohliana constanzae (Hudepohl), H. menzelii (Ritsema), H. superba (Aurivillius), H. suspecta (Ritsema). The new generic name honors Dr. Karl-Emst Hudepohl …

Supplying Craft Breweries With Locally Produced Ingredients, Food Processing Center

Food Processing Center: Reports

This report summarizes the initial findings of a survey of 52 craft breweries (brewpubs, microbreweries, and regional breweries) in the states of Colorado, Nebraska, Iowa, Missouri, Minnesota, and Wisconsin. The head brewer or owner/operator was surveyed to determine the craft brewing industries’ level of interest in purchasing locally grown and produced grains and locally produced malt, as well as the procurement needs for the ingredients they purchase.

The craft brewing industry, which mushroomed in the early to mid 1990’s, slowed to a crawl in the late 1990’s, however, the industry began to rebound in 2000 as volume for craft brewers …

The History Of Life In Nebraska: A Time-Travel Adventure, Paul A. Johnsgard

Papers in Ornithology

It is difficult for humans, whose lives are measured in years and decades, to fathom the age of the Earth, whose history is patiently but inexorably written on thin pages of landscape, each lasting millions of years or more. As an exercise in Earth-time, let a single mile represent a million years. Thus .5 mile would represent 500,000 years, .10 mile equals 100,000 years, .01 mile (52 feet) equals 10,000 years; .001 mile (5.2 feet) equals 1,000 years, and about 6 inches equal 100 years. A decade would equal about half an inch. It is 450 miles from the 60th …

Intracellular Signaling Molecules Activated By Epstein-Barr Virus For Induction Of Interferon Regulatory Factor 7, Luwen Zhang, Lihong Wu, Ke Hong, Joseph S. Pagano

Nebraska Center for Virology: Faculty Publications

Epstein-Barr virus (EBV) latent membrane protein 1 (LMP-1) is the principal oncogenic protein in the EBV transformation process. LMP-1 induces the expression of interferon regulatory factor 7 (IRF-7) and activates IRF-7 protein by phosphorylation and nuclear translocation. LMP-1 is an integral membrane protein with two regions in its C terminus that initiate signaling processes, the C-terminal activator regions 1 (CTAR-1) and CTAR-2. Here, genetic analysis of LMP-1 has determined that the PXQXT motif that governs the interaction between LMP-1 CTAR-1 and tumor necrosis factor receptor-associated factors (TRAFs) is needed to induce the expression of IRF-7. Mutations in the PXQXT motif …

Interferon Regulatory Factor 7: A Key Cellular Mediator Of Lmp-1 In Ebv Latency And Transformation, Luwen Zhang, Joseph S. Pagano

Nebraska Center for Virology: Faculty Publications

Interferon regulatory factor 7 (IRF-7) was cloned within the biological context of Epstein–Barr virus (EBV) latency, and has an intimate relation with EBV. EBV latent membrane protein 1 (LMP-1) regulates IRF-7 both by inducing the expression of IRF-7 and by activating IRF-7 protein through phosphorylation and nuclear translocation in a post-translational manner. The activated IRF-7 then functions to regulate both EBV and cellular target genes involved in latency, transformation and immune regulation. IRF-7 appears to be a key cellular latency protein involved in both the pathogenesis and persistence of EBV infection.

Identification Of A Cellular Protein That Interacts And Synergizes With The Rta (Orf50) Protein Of Kaposi’S Sarcoma-Associated Herpesvirus In Transcriptional Activation, Shizhen Wang, Shuhong Liu, Ming-Hoi Wu, Yunqi Geng, Charles Wood

Nebraska Center for Virology: Faculty Publications

Lytic reactivation of Kaposi’s sarcoma-associated herpesvirus (KSHV), or human herpesvirus 8, from latency requires transcriptional transactivation by the viral protein RTA encoded by the ORF50 gene. Very little is known about how RTA functions and the cellular factors that may be involved in its transactivation function. Using the yeast two-hybrid system, we have identified a human cellular protein that can interact with KSHV RTA. The cellular protein, referred to as the human hypothetical protein MGC2663 by GenBank, is encoded by human chromosome 19. This protein is 554 amino acids (aa) in size and displays sequence similarity with members of the …

The Prairie Naturalist Volume 33, No.4 December 2001

The Prairie Naturalist

SPECIES, SEASON, AND DENSITY OF BURIED SEEDS SURVIVING FOX SQUIRREL DEPREDATION ▪ C. C. Smith, and J. M. Briggs

RELATI0NSHIP OF HYDROLOGICAL CONDITIONS AND POPULATlONS OF BREEDING PIPING PLOVERS ▪ D. S. Licht,

DEMODICOSIS IN A WHITE-TAILED DEER (ODOCOILEUS VIRGINIANUS) IN SOUTH DAKOTA ▪ C. N. Jacques, J. A Jenks. M. B. Hildreth. R. J. Schauer, and D. D. Johnson

SURVEYS OF CALLING AMPHIBIANS IN NORTH DAKOTA ▪ D. H. Johnson, and R. D. Batie

EFFECTS OF HUMAN PRESENCE ON VOCALIZATIONS OF GRASSLAND BIRDS IN KANSAS ▪ S. L Bye, R. J. Robel, and K. E. Kemp

Reviewers 2001

Author …

Nebline, December 2001

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Bioterrorism and the Biosecurity Measures We Can Use to Reduce our Risks
Biosecurity Related NebGuides and NebFacts
Deicing Salts Harmful to Plants
Houseplant Problems
Horticulture information center
Growing Cacti and Succulents
How Do Honey Bees Survive the Winter?
Nothing Brightens up a Winter Day Like the Song of a Bird
Looking for a New Hobby? Learn to Manage Bees and Produce Honey!
Extension Resources on Feeding Birds and Wildlife Habitat
Fungus Gnats Are Nuisance Often Found in Soil of Houseplants
Producer Question — Should I Aerate my Pasture?
Management Pays Better than Labor
Biosolids Improves Soil and Cuts Production Costs …

Hydrocolus Heggiensis, A New Species From Georgia And South Carolina (Coleoptera: Dytiscidae), Janet C. Ciegler

Insecta Mundi

Hydrocolus heggiensis, a new species of predacious water beetle, is described from granite monadnocks in Georgia and one location in South Carolina. It most closely resembles H. stagnalis (Gemminger and Harold) but differs in range, genitalia, and elytral punctation. Photographs, drawings, and an interpolation of the new species into existing keys are given.

Occurrence Of The Milliped Pachydesmus Crassicutis Adsinicolus Hoffman In Florida (Polydesrnida: Xystodesmidae), Rowland M. Shelley

Insecta Mundi

The xystodesmid milliped tribe Pachydesmini is represented in the southeastern states by three genera - Pachydesmus Cook, Dicellarius Chamberlin, and Thrinaxoria Chamberlin and Hoffman -eight species, and five subspecies (Hoffman 1958, 1999; Shelley 1984, 2002). The only one presently known from Florida is Dicellarius, represented by D. okefenokensis (Chamberlin), in the peninsula, and D. b. bimaculatus (McNeill) and D. b. fictus (Chamberlin) in the panhandle (Shelley 1984,2001).

Rediscovery And Redescription Of Ceradryops Punctatus Hinton, 1937 (Coleoptera: Dryopidae), P. J. Spangler, C. L. Staines

Insecta Mundi

Ceradryops punctatus Hinton horn Sri Lanka is redescribed and illustrated. Notes are made on the

Morphological And Molecular Description Of Haematoloechus Meridionalis N. Sp. (Digenea: Plagiorchioidea: Haematoloechidae) From Rana Vaillanti Brocchi Of Guanacaste, Costa Rica, Virginia León-Règagnon, Daniel R. Brooks, Derek A. Zelmer

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

An undescribed species of Haematoloechus inhabits the lungs of Rana vaillanti in northwestern Costa Rica. The new species is most similar morphologically to H. medioplexus, having a very small, but well-developed, ventral sucker and lacking extracecal uterine loops, and apparently was misidentified previously as H. medioplexus in Rana palmipes from Colombia. It differs from H. medioplexus, notably by (1) the shape of the oral sucker, which is elliptical in H. meridionalis and spherical in H. medioplexus; (2) the posterior extent of the vitelline fields, which terminate at the same level in H. medioplexus, but always at …

Predicting Risk To Biodiversity As A Function Of Aquifer Pressure In Gab Mound Springs, A. J. Tyre, Brigitte Tenhumberg, H.P. Possingham

School of Biological Sciences: Faculty Publications

Plants and aquatic invertebrates endemic to mound springs of the Great Artesian Basin (GAB) of Australia are of national biodiversity significance. Springs occur in groups, and current survey data suggest that local extinction and recolonisation within a group does occur naturally. Mound spring fauna are therefore good examples of true metapopulations, and any study of the environmental impacts on these systems must take this into account. Use of GAB water leads to drawdown of the pressure in the aquifer. This can potentially impact mound spring flora and fauna in two ways. First, as pressure decreases, so does flow from spring …