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Effects Of Fluoranthene And Ambient Oxygen Levels On Survival And Metabolism In Three Sibling Species Of Capitella (Polychaeta), Inez Linke-Gamenick, Bent Vismann, Valery E. Forbes

Valery Forbes Publications

The successful persistence of Capitella spp. in disturbed and/or oil-polluted habitats is widely known, but demographic adaptations might be only part of the explanation and little is known about differences among species. The present study investigates ecophysiological effects of the common PAH (polycyclic aromatic hydrocarbon) fluoranthene (FLU) on juvenile and adult survival, comparing 3 sibling species of Capitella (Polychaeta; Capitellidae). Subsequently, the influence of FLU on the aerobic and anaerobic metabolism in the most 'sensitive' species, Capitella sp. S, and most 'tolerant' species, Capitella sp. I, was assessed. Oxygen uptake and internal succinate concentration (an indicator of anaerobic metabolism) were …

Winter Habitat Use And Survival Of Female Ring-Necked Pheasants (Phasianus Colchicus) In Southeastern North Dakota, H. Jeffrey Homan, George M. Linz, William J. Bleier

United States Department of Agriculture Wildlife Services: Staff Publications

From 1992 to 1995 we used radiotelemetry to monitor winter habitat selection and survival of female ring-necked pheasants (Phasianus colchicus) in southeastern North Dakota. We captured 100 birds at nine sites in six study blocks centered on cattail-dominated (Typha spp.) semi-permanent wetlands. Pheasants showed nonrandom habitat use at two hierarchical scales. At the second-order scale (23-km² blocks) semi-permanent wetlands were preferred during two winters in which habitat selection could be assessed (1992–1993 and 1994–1995). An additional second-order preference for grass-covered uplands was shown during the mild 1994–1995 winter. At the third-order scale (home-range) pheasants preferred the …

The Eos Prototype Validation Exercise (Prove) At Jornada: Overview And Lessons Learned, J. L. Privette, G. P. Asner, J. Conel, K. R. Huemmrich, R. Olson, A. Rango, A. F. Rahman, K. Thome, Elizabeth A. Walter-Shea

School of Natural Resources: Faculty Publications

The Earth Observing System (EOS) instrument teams must validate the operational products they produce from the Terra spacecraft data. As a pilot for future validation activities, four EOS teams (MODIS, MISR, ASTER, and Landsat-7) and community experts conducted an 11-day field campaign in May 1997 near Las Cruces, NM. The goals of the Prototype Validation Exercise (PROVE) included (1) gaining experience in the collection and use of field data for EOS product validation; (2) developing coordination, measurement, and data-archiving protocols; and (3) compiling a synoptic land and atmospheric data set for testing algorithms. PROVE was held at the USDA-Agricultural Research …

Wpa News 61 (2000), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (February 2000), number 61

Published by the World Pheasant Association

Water Current, Volume 32, No. 1, February 2000

Water Current Newsletter

Research Brief: Simple Iron Treatment Inexpensive Way to Remove Pesticides from Contaminated Soil
From the Director: A Dry-Spell or Multi-Year Drought? Elliot to Arrive in June; Awards to be Presented at NWCC Conference
Research Brief: Restoring Sandpit Lake Quality Linked to Phosphorous Reduction Technique
UNL Hosting Science Day 2000 in April
Ensuring Water for the 21st Century
Water News Briefs
Groundwater Workshops
NEEA Plans June Conference
The Law of the Missouri River
Festival Volunteers Needed
Funding for Youth Water Festivals
Time Growing Short to Get Involved with Nebraska Water 2000 Conference

Ard News February 2000

Agricultural Research Division: News and Annual Reports

CONTENTS:
Comments from the Dean
CSREES Appropriation for FY 2000
Initiative for Future Agricultural and Food Systems
ARD 113th Annual Report
Grants and Contracts Received December 1999 and January 2000
New or Revised Projects
Undergraduate Honors Research Program
Research Support from Commodity Checkoff Programs
Endeavors
Innovative and High Risk Research Program
NABC Bioethics Institute
NABC 12 Annual Meeting
NABC Statement 2000 an Agricultural Biotechnology
Federal R&D Funding for FY 2000

Desarrollo De Tecnologias De Acuacultura Semi-Intensiva En Honduras: Resumen De Las Investigaciones En Acuacultura De Agua Dulce Realizadas Por El Programa Colaborativo De Apoyo A La Investigacion En Acuacultura/Dinamica De Estanques (Pd/A Crsp) De 1983 A 1992, Bartholomew Green, David Teichert-Coddington, Terrill Hanson

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

La investigacion en acuacultura en Honduras se ha desarrollado desde 1983 en una manera colaborativa por medio del Centro Internacional de Acuacultura y Medio Ambientes Acuaticos, Universidad de Auburn, y la Direccion General de Pesca y Acuacultura, Secretaria de Agricultura y Ganaderia, Republica de Honduras. Estas investigaciones de llevaron a cabo en el Centro Nacional de Investigacion Piscicola El Carao, Comayagua, Honduras, bajo el auspicio del Programa Colaborativo de Investigaion en Acuacultura/Dinamica de Estanques (PD/A CRSP), el cual esta financiado por USAID. La meta principal de PD/A CRSP es incremntar la produccion de tilapia por medio de la optimizacion de …

Nebline, February 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Southeast Nebraska Area Producers – SNAP, a history and update
2000 Perennial Plant of the Year
Basil
Mulches
Roosting birds making a mess?
Dust mites
EPA announces recall of AllerCare
Drought entering 2000 growing season
Sorghum seminar features marketing and production tips
Computerized financial record keeping
Selecting an alfalfa variety
Y2K dust bowl has arrived
The business plan
Water softening skin and detergent
Bait stations for rodent control
Stretching food dollars through the holidays
Healthy Eating: Winter Crisp
Heart healthy adventures
Focus on Food
Family & Community Education (FCE): Clarice's Column
FCE News
Raising boys to men
Ways to beat …

The Differential Relations Of Parent And Peer Attachment To Adolescent Adjustment, Deborah J. Laible, Gustavo Carlo, Marcela Raffaelli

Department of Psychology: Faculty Publications

Whether or not close emotional relationships with parents and peers serve similar functions for adolescent adjustment is an issue of increasing interest. The present study was designed to examine the relations between parent and peer attachment and adolescent adjustment. Eighty-nine adolescents (M age = 16.1 years, SD = 1.8 years) completed self-report measures of parent and peer attachment, sympathy, academic efficacy, aggression, anxiety, and depression. Adolescents were divided into four groups on the basis of their parent and peer attachment scores: those high on both, those low on both, those high on peer but low on parent attachment, and those …

United States Patent: Buffalograss Plant Named "Ne86-61", Terrance P. Riordan, Frederick P. Baxendale, Ruth C. Hansen, Roch E. Gaussoin, Paul G. Johnson, Jennifer M. Johnson-Cicalese

Department of Entomology: Faculty Publications

A vegetatively reproduced buffalograss cultivar named NE86-61 is distinguished from other commercially produced buffalograss varieties by its excellent turfgrass color, cold tolerance, high density, dark green color, low growth habit, and rate of establishment. NE86-61 is also distinguished from other varieties by molecular markers and nuclear DNA content. NE86-61 is suitable for use in low to medium maintenance situations in arid and semi-arid climates of United States and Canada.

Interferon Regulatory Factor 7 Is Induced By Epstein-Barr Virus Latent Membrane Protein 1, Luwen Zhang, Joseph S. Pagono

Nebraska Center for Virology: Faculty Publications

Infection by Epstein-Barr virus (EBV) generates several types of latency with different profiles of gene expression but with expression of Epstein-Barr nuclear antigen 1 (EBNA-1) in common. The BamHI Q promoter (Qp) is used for the transcription of EBNA-1 mRNA in type I latency, which is an EBV infection state exemplified by Burkitt’s lymphoma (BL). However, Qp is inactive in type III latency, and other promoters (C/Wp) are used for transcription of EBNA-1, which raises the question of how usage of these promoters is governed. Interferon (IFN) regulatory factor 7 (IRF-7) was identified first as a negative regulator of …

Cap-Independent Translational Enhancement Of Turnip Crinkle Virus Genomic And Subgenomic Rnas, Feng Qu, Thomas Jack Morris

Nebraska Center for Virology: Faculty Publications

The presence of translational control elements and cap structures has not been carefully investigated for members of the Carmovirus genus, a group of small icosahedral plant viruses with positive-sense RNA genomes. In this study, we examined both the 5’ and 3’ untranslated regions (UTRs) of the turnip crinkle carmovirus (TCV) genomic RNA (4 kb) as well as the 5’ UTR of the coat protein subgenomic RNA (1.45 kb) for their roles in translational regulation. All three UTRs enhanced translation of the firefly luciferase reporter gene to different extents. Optimal translational efficiency was achieved when mRNAs contained both 5’ and 3’ …

The Physiologic Development Of Speech Motor Control: Lip And Jaw Coordination, Jordan R. Green, Christopher A. Moore, Masahiko Higashikawa, Roger W. Steeve

Department of Special Education and Communication Disorders: Faculty Publications

This investigation was designed to describe the development of lip and jaw coordination during speech and to evaluate the potential influence of speech motor development on phonologic development. Productions of syllables containing bilabial consonants were observed from speakers in four age groups (i.e., 1-year-olds, 2-year-olds, 6-year-olds, and young adults). A video-based movement tracking system was used to transduce movement of the upper lip, lower lip, and jaw. The coordinative organization of these articulatory gestures was shown to change dramatically during the first several years of life and to continue to undergo refinement past age 6. The present results are consistent …

Arthropod And Helminth Parasites From The Plains Pocket Gopher, Geomys Bursarius Bursarius From The Hosts' Northern Boundary Range In Minnesota, Monroe H. Bartel, Scott Lyell Gardner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

As part of a continuing and more general study of the diversity of parasites from subterranean mammals in central North America, individuals of the Plains pocket gopher, Geomys bursarius bursarius, were collected from 7 localities in northwestern Minnesota from September 1991 through October 1996. Arthropods collected included the fleas, Opisocrostis bruneri (4 of 124, 3.20/0), Foxella ignota ignota (85 of 124, 68.50/0); the chewing louse, Geomydoecus geomydis geomydis from 98 of 124 (790/0), and larvae of the tick, Dermacentor variabilis (1 of 124, 0.8%). Nematodes found included Physaloptera limbata (2 of 118 gophers, 1.7%), Capillaria americana (4 of 118, …

Helminthoxys Abrocomae N. Sp. (Nematoda: Oxyurida) From Abrocoma Cinerea In Bolivia, Jean-Pierre Hugot, Scott Lyell Gardner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A new pinworm parasite is described from Abrocoma cinerea, a caviomorph rodent of the superfamily Octodontoidea from the Andes of Bolivia. The new species, Helminthoxys abrocomae n. sp., possesses special secretory mamelons which we consider a synapomorphy of the genus Helminthoxys. Within Helminthoxys, the closest relatives are found in octodontoid rodents: H. gigantea occurs in Octodon degus in Chile and O. bridgesi in Argentina, and H. freitasi is a parasite of Thrichomys aperoides in Brazil. H. abrocomae n. sp. differs from both other species morphometrically in relation to different parts of the body in both sexes, particularly …

A Phylogenetic Hypothesis For Species Of The Genus Taenia (Eucestoda: Taeniidae), Eric P. Hoberg, Arlene Jones, Robert L. Rausch, Keeseon S. Eom, Scott Lyell Gardner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Cladistic analysis of a numerical data matrix describing 27 characters for species of Taenia resulted in four most parsimonious phylogenetic trees (174 steps; consistency index = 0.28; homoplasy index = 0.72; retention index = 0.48). Monophyly for Taenia is diagnosed by the metacestode that is either a cysticercus or a form derived from a bladder-like larva; no other unequivocal synapomorphies are evident. Tree structure provides no support for recognition of a diversity of tribes or genera within the Taeniinae: Fimbriotaeniini and Taeniini have no phylogenetic basis. Hydatigera, Fimbriotaenia, Fossor, Monordotaenia, Multiceps, Taeniarhynchus, Tetratirotaenia must …

Bibliography Of Parasites And Vertebrate Hosts In Arizona, New Mexico And Texas (1893–1984), Lillian F. Mayberry, Albert G. Canaris, John R. Bristol, Scott Lyell Gardner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

TABLE OF CONTENTS:
Introduction • Tables
Parasite-Host Bibliography: Protozoa • Cestoda • Trematoda • Nemata • Aanthocephala • Arthropoda • Acarina-Mite • Acarina-Tick • Copepoda-Crustacea • Insecta-Diptera • Insecta-Hemiptera • Insecta-Mallophaga and Anoplura • Insecta-Siphonaptera • Pentastomida • Class Unknown
Host-Parasite Bibliography: Scientific Name • Common Name
Literature Cited
Theses and Dissertations not Referenced
Acknowledgments

This bibliographic listing of parasites and hosts reported from Arizona, New Mexico and Texas has been prepared to facilitate literature searches by parasitologists and others needing such information. In the Parasite-Host Bibliography, parasites have been categorized into major taxonomic groups, assigned a number (left column) …

United States Patent: Buffalograss Plant Named ‘Ne86-120’, Terrance Riordan, Frederick P. Baxendale, Roch E. Gaussoin, Paul Johnson, Jennifer M. Johnson-Cicalese, Edward John Kinbacher

Department of Entomology: Faculty Publications

A vegetatively reproduced buffalograss cultivar named 'NE86-120' is distinguished from other commercially produced buffalograss varieties by its excellent turfgrass color, cold tolerance, high density, dark green color, low growth habit, and rate of establishment. 'NE86-120' is also distinguished from other varieties by molecular markers and nuclear DNA content. 'NE86-120' is suitable for use in low to medium maintenance situations in arid and semi-arid climates of United States and Canada.

Purification Of Immunoglobulins From Serum Using Thiophilic Cellulose Beads, Anuradha Subramanian

Papers in Biotechnology

This study evaluates the chromatographic performance of a support obtained by the reaction of mercaptoethanol with cellulose beads activated with divinyl sulfone. Cellulose beads 500-800 microns (pm) in diameter and with a solids content of 3.5% were selected for this study. A two-step sequence of permeation and reaction was used to install thiophilic sites throughout the cross section of the bead. The distribution of thiophilic sites was visualized by immobilizing fluorescent antibodies. Human and porcine serum proteins were separated on the thiophilic support at different linear velocities. Thiophilic cellulose beads were observed to bind human and porcine immunoglobulins (IgG) selectively …

Integrated Management Tactics For Predicting And Alleviating Pocket Gopher (Thomomys Spp.) Damage To Conifer Reforestation Plantings, Richard M. Engeman, Gary W. Witmer

United States Department of Agriculture Wildlife Services: Staff Publications

Pocket gophers cause extensive damage to reforestation plantings in the western United States, and pose acute and chronic problems for forest managers. We examine the components of an integrated pest management strategy for reducing pocket gopher damage to conifers: the predictive factors for assessing the risk for damage, techniques for monitoring gopher populations and assessing efficacy of control methods, and damage control strategies and methods. The information in each component is reviewed and presented so that an optimal damage reduction plan can be developed in a logical, cost-effective, environmentally responsible fashion.

Overview Of A Passive Tracking Index For Monitoring Wild Canids And Associated Species, Richard M. Engeman, Lee Allen

United States Department of Agriculture Wildlife Services: Staff Publications

Population density estimates for many animal species are often difficult or expensive to obtain, and they rely on assumptions that, if violated, result in unmeasurable estimation errors. Density estimates also may be unnecessary for research or management purposes, because an index that tracks changes in a population within appropriate time and geographic constraints could provide the information necessary to make management decisions or to evaluate the impact of a control program. We review research on a passive tracking index where observations are made on a series of tracking plots placed on lightly used dirt roads. The number of sets of …

Standardizing The Evaluation Of Brown Tree Snake Trap Designs, Richard M. Engeman, Daniel S. Vice

United States Department of Agriculture Wildlife Services: Staff Publications

The introduced brown tree snake has had devastating impacts on the native vertebrate fauna of Guam. Trapping is the primary means by which brown tree snakes are removed, either in support of reintroduction of endangered species or to deter their movement from Guam in cargo. Traps used to control brown tree snake populations have been continually evolving since the 1980s. Before general operational implementation of a new design, the efficacy of new trap developments must be demonstrated. In this paper we combine the current knowledge about brown tree snake control objectives and practicalities, the information gained from a variety of …

Conditioned Place Preference: What Does It Add To Our Preclinical Understanding Of Drug Reward?, M. T. Bardo, Rick A. Bevins

Department of Psychology: Faculty Publications

Rationale: Among the various experimental protocols that have been used to measure drug reward in laboratory animals, conditioned place preference (CPP) has been one of the most popular. However, a number of controversial issues have surrounded the use of this experimental protocol.
Objective: The present review provides a theoretical overview of some critical issues relevant to CPP. The advantages and limitations of CPP are also covered.
Results: Based on modern and traditional theoretical formulations of Pavlovian conditioning, CPP appears to reflect a preference for a context due to the contiguous association between the context and a drug stimulus. Within this …

An Efficient Wheat Transformation Procedure: Transformed Calli With Long-Term Morphogenic Potential For Plant Regeneration, Lingyu Zhang, J.J. Rybczynski, W.G. Langenberg, Amitava Mitra, Roy C. French

Department of Plant Pathology: Faculty Publications

A method for producing large numbers of transgenic wheat plants has been developed. With this approach, an average of 9.7% of immature embryo explants were transformed and generated multiple self-fertile, independently transformed plants. No untransformed plants, or escapes, were regenerated. This transformation procedure uses morphogenic calli derived from scutellum tissue of immature embryos of Triticum aestivum cv. Bobwhite co-bombarded with separate plasmids carrying a selectable marker gene (bar) and a gene of interest, respectively. Transformed wheat calli with a vigorous growth phenotype were obtained by extended culture on media containing 5.0 mg/l bialaphos. These calli retained morphogenic potential …

Brown Tree Snake Discoveries During Detector Dog Inspections Following Supertyphoon Paka, Daniel S. Vice, Richard M. Engeman

United States Department of Agriculture Wildlife Services: Staff Publications

Detector dog inspection of outbound cargo is one of several control methods applied to deter brown tree snake dispersal from Guam. In the two and a half months following the passage of Supertyphoon Paka over Guam, an increase in brown tree snake discoveries during detector dog inspections was observed. We report here on the circumstances of those discoveries and their management implications.

Review Of Into The West The Story Of Its People, By Walter Nugent, Frederick C. Luebke

Department of History: Faculty Publications

This latest book by Walter Nugent, a distinguished and prolific American historian, is a major contribution to western history. Into the West is about people--those who came to the West, when, and why--more than about place. Though "not driven by any thesis," it rests on a foundation of sociodemography, not geography (p. xix). On his way into the West, Nugent focuses on population movements and the ideas that propelled them.

Dehydrogenase And Oxoreductase Activities Of Porcine Placental 11Β-Hydroxysteroid Dehydrogenase, Harold G. Klemcke

Roman L. Hruska U.S. Meat Animal Research Center: Reports

Dehydrogenase (cortisol to cortisone) and oxoreductase (cortisone to cortisol) activities of porcine placental 11β-hydroxysteroid dehydrogenase ( 11β-HSD) were measured in tissue fragment cultures on day 75 of gestation. Dehydrogenase activity was over fivefold greater than oxoreductase activity (p < .001). There were positive linear associations (p < .01) between net dehydrogenase activity (dehydrogenase minus oxoreductase) and fetal weight, fetal length, and placental weight. These data indicate a predominance of placental 11β-HSD dehydrogenase activity at this gestational stage that would insure a net conversion of cortisol to cortisone as it traverses the placenta. The data further suggest that 11β-HSD activities may provide an optimal glucocorticoid environment that is supportive of enhanced fetal and placental growth.

Intsormil 2000 Annual Report, John M. Yohe, Thomas Crawford, Jr., Joan Frederick, Dorothy Stoner

INTSORMIL Impacts and Bulletins

Presently, worldwide, more than 800 million people are hungry and over I billion are desperately poor, and food demand is increasing rapidly. The majority of poor live in rural areas in developing countries and agricultural and food systems development is vital to economic growth; improving environmental quality; strengthening nutrition, health and child survival; improving the status of women; and promoting democratization. It is estimated that by 2000, the number of people living in developing countries will grow from 4.9 billion to 6.8 billion people. More than 1.3 billion people today live on less than one dollar per day. It is …

Oxygen Budget For Lake Ogallala, Kyle D. Hoagland, John C. Holz, Tadd M. Barrow, Richard J. Ruane

School of Natural Resources: Faculty Publications

Lake Ogallala, located below Kingsley Dam which impounds Lake McConaughy in Keith County, Nebraska, is a 260-surface hectare lake with an average depth of approximately eight meters. The lake provides mUltiple uses including a sport fishery and a hydropower and irrigation regulation basin. Since the installation of the hydroelectric generating plant in 1984 (Kingsley Dam was constructed in 1942) and the continued eutrophication of Lake McConaughy, dissolved oxygen concentrations have generally declined in Lake Ogallala. Hypolimnetic withdrawal from Lake McConaughy results in depressed oxygen levels in Lake Ogallala during the mid to latter part of the summer, particularly in certain …

The Spectral Contribution Of Carotenoids To Light Absorption And Reflectance In Green Leaves, Y. Zur, A. A. Gitelson, O. B. Chivkunova, M. N. Merzlyak

School of Natural Resources: Faculty Publications

Absorbance and reflectance spectra in the visible and near infrared range of the spectrum, acquired for maple (Acer platanoides L.) leaves were studied. Standard deviation of absorbance spectra showed that in yellow to green leaves, with chlorophyll content at least up to 30 nmol/cm2, there is a spectral feature at 520 nm attributable to carotenoids. Reflectance around 520 nm also correlates closely with carotenoids content in yellow to green leaves. Thus, this spectral feature at 520 nm could be used as a measure of carotenoids content in green leaves and plants.