Life Sciences Commons^™

Denitrification And Oxygen Consumption In Sediments Of Two South Texas Estuaries, Won Bae Yoon, Ronald Benner

Faculty Publications

Spatial and temporal variations in rates of denitrification and oxygen consumption were measured in sediments of the Nueces and Guadalupe Estuaries in southern Texas, USA. Denitrification rates varied from 4.0 to 71.1 µmol N₂ m^-2 h^-1 in the Nueces Estuary and from 4.6 to 34.7 µmol N₂ m^-2 h^-1 in the Guadalupe Estuary. Denitrification accounted for 29 to 80% of total benthic N flux in the study areas. Oxygen consumption rates ranged from 176 to 818 µmol O₂ m^-2 h^-1 in Nueces Estuary and from 208 to 550 µmol O_{2 …}

Funding History Of Science, Pamela Clapp, Long Term Ecological Research

Long Term Ecological Research Network

A letter addressed to Dr. Jerry Franklin written by Administrative Director Pamela Capp. Dr. Clapp writes on behalf of Dr. Byron Waksman and the Advisory Committee of the Science Writing Fellowships Program. She asks if Dr. Franklin will be of support again for the new year.

South Dakota Beef Cow-Calf Producer Management Practices, Donald Taylor, Dillon M. Feuz

Economics Research Reports

This research report is based on the results of a mail survey of randomly selected South Dakota beef cow-calf operators undertaken during late 1991. The purpose of the survey was to determine the nature of management practices followed by the state's cow-calf producers and whether those practices differ by size and/or location of herd. Attention was given to producers' overall cowcalf, breeding, feeding, and health management practices.

Northeast Research Station Watertown, South Dakota Annual Progress Report, 1992, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1992 annual progress report for the Northeast Research Station in Watertown, South Dakota. This report is issued by the South Dakota Agricultural Experiment Station and the South Dakota State University Plant Science Department. This report includes information on the 1992 crop season, including growing season precipitation data from 1956-1992, crop performance trials, oat and rye research, spring wheat breeding, soybean studies, weed control effects on crops, W.E.E.D. project demonstration, soybean breeding, yield testing, farming system studies, 1992 yields, soil moisture, soil tests results.

Meeting Minutes, December 8th, 1992, National Smokejumper Association Executive Committee

National Smokejumper Association Meeting Minutes

Agenda: NSA obtain all rights and priveledges to the artwork of Mr. Larry Fite which the National Association wishes to purchase from Mr. Fite for a 10 year membership.; Mailing: We are ready!; Cash flow is poor; Ed Courtney acting Treasurer and Laird Robinson be acting Secretary; Meet every 2nd Tuesday of every month.; Next meeting - Second Tuesday in January.;

Bacterial Numbers And Activity, Microalgal Biomass And Productivity, And Meiofaunal Distribution In Sediments Naturally Contaminated With Biogenic Bromophenols, Charles C. Steward, James L. Pinckney, Yvette Piceno, Charles R. Lovell

Faculty Publications

Sediment cores were collected inside and outside of a bed of a bromophenol-producing marine polychaete, Notomastus lobatus, and examined for impact of the bromophenols on sediment microflora and meiofauna around N. lobatus burrows. No significant differences were found between microbial parameters measured inside and outside of the N. lobatus bed. Integrated 6 cm cores taken adjacent to N. lobatus burrows contained 1.2 x 10⁹ bacteria ml^-1. Cell numbers were similar at control sites within the bed, but away from burrows, and not significantly different from cell numbers (1.0 X 10⁹ cells ml^-1) at a …

Purification And Ligand Binding Of A Soluble Class I Mhc Molecule Consisting Of The First Three Domains Of H-2kd Fused To B2-Microglobulin Expressed In The Baculovirus/Insect Cell System, Francois Godeau, Immanuel F. Luescher, David M. Ojcius, Cecile Saucier, Estelle Mottez, Lucien Cabanie, Philippe Kourilsky

All Dugoni School of Dentistry Faculty Articles

A recombinant baculovirus encoding a single-chain murine major histocompatibility complex class I molecule in which the first three domains of H-2Kd are fused to beta 2-microglobulin (beta 2-m) via a 15-amino acid linker has been isolated and used to infect lepidopteran cells. A soluble, 391-amino acid single-chain H-2Kd (SC-Kd) molecule of 48 kDa was synthesized and glycosylated in insect cells and could be purified in the absence of detergents by affinity chromatography using the anti-H-2Kd monoclonal antibody SF1.1.1.1. We tested the ability of SC-Kd to bind antigenic peptides using a direct binding assay based on photoaffinity labeling. The photoreactive derivative …

Elucidation Of The Complete Azorhizobium Nicotinate Catabolism Pathway, Christopher Kitts, Jerome P. Lapointe, Van Thai Lam, Robert A. Ludwig

Biological Sciences

A complete pathway for Azorhizobium caulinodans nicotinate catabolism has been determined from mutant phenotype analyses, isolation of metabolic intermediates, and structural studies. Nicotinate serves as a respiratory electron donor to O₂ via a membrane-bound hydroxylase and a specific c-type cytochrome oxidase. The resulting oxidized product, 6-hydroxynicotinate, is next reduced to 1,4,5,6-tetrahydro-6-oxonicotinate. Hydrolytic ring breakage follows, with release of pyridine N as ammonium. Decarboxylation then releases the nicotinate C-7 carboxyl group as CO₂, and the remaining C skeleton is then oxidized to yield glutarate. Transthioesterification with succinyl coenzyme A (succinyl-CoA) yields glutaryl-CoA, which is then oxidatively decarboxylated to …

The Expression Pattern Of The Tonoplast Intrinsic Protein Γ-Tip In Arabidopsis Thaliana Is Correlated With Cell Enlargement, Edward Himelblau, Herman Hofte, Dolors Ludevid, Maarten J. Chrispeels

Biological Sciences

The vacuolar membrane (tonoplast) contains an abundant intrinsic protein with six membrane-spanning domains that is encoded by a small gene family. Different isoforms of tonoplast intrinsic protein (TIP) are expressed in different tissues or as a result of specific signals. Using promoter-β-glucuronidase (GUS) fusions and in situ hybridization, we have examined the expression of γ-TIP in Arabidopsis thaliana. GUS staining of plants transformed with promoter-GUS fusions showed that γ-TIP gene expression is high in recently formed tissues of young roots. In the shoot, γ-TIP gene expression was highest in the vascular bundles of stems and petioles, as well as …

Allocation Of Blade Surface To Reproduction In Laminaria Longicruris De La Pylaie In The Northwestern Atlantic Ocean, Margaret (Peg) A. Van_Patten Ms.

Department of Marine Sciences

The objective of this study is to quantify the timing of and allocation of resources to reproduction in Laminaria longicruris, sugar kelp, with emphasis on a population in Long Island Sound.

Management Plan Kimberley Prawn Fishery., G. Stewart

Fisheries management papers

This report outlines a management plan for the Kimberley Prawn Fishery which operates in Western Australia coastal waters of the Indian Ocean and Timor Sea, off the Kimberley coastline lying east of Koolan Island, 1230 45' east longitude and west of Cape Londondery, 1260 58' east longitude. Kimberley Prawn Fishery access restrictions were first specified in Western Australian Fisheries Notice No. 170 published in Governement Gazette No. 2 of 4 January, 1985. Present exploitation is low and access is limited to Western Australian Fishing Boat licences endorsed with transferable access to the Kimberley Prawn Fishery (9 trawlers) Trawlers with access …

Bulletin No. 33: Archaeology In The Connecticut College Arboretum, Harold D. Juli, Glenn D. Dreyer

Bulletins

No abstract provided.

Southeast South Dakota Experiment Farm Annual Progress Report, 1992, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This thirty-second annual report of the research program at the Southeast South Dakota Experiment Farm has special significance for those engaged in agriculture and the agriculturally related businesses in the nine county area of southeast South Dakota. Reports in this document include information on: temperatures and precipitation data, corn production and performance, soybean research and planting, soil testing, alfalfa yield test, fertilizer testing, herbicide research, crop rotation, sorghum, small grains, livestock research, and pest and weed control.

West River Agricultural Research And Extension Center Progress Report, 1992, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1991 annual progress report of the West River Crops and Soils Research Projects, South Dakota Agricultural Experiment Station. This document includes reports on: weather and climate, grain variety trials, management and tillage, and weed and pest control.

Meeting Minutes, December 1st, 1992, National Smokejumper Association Executive Committee

National Smokejumper Association Meeting Minutes

Agenda: Reviewed membership cards for association members and members.; pay to Mary Lou Lewis sum of $295.05 ASAP; Earl to meet with Sherry Devlin of the Missoulian; membership application and newsletter to be mailed out next week; Each base will be contacted regarding the election or appointment of a board member; Mr. Larry Fite the artist of the National Association logo;

Dynamics Of The Arctic Fox Population On St. Lawrence Island, Bering Sea, Francis H. Fay, Robert L. Rausch

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

English abstract: We hypothesized that the arctic fox, Alopex lagopus (Linnaeus), population on St. Lawrence Island was cyclic and that its fluctuations in size. structure, and productivity were correlated with the relative size of the population of northern voles, Microtus oeconomus Pallas, the primary prey. Based on a nine-year study, we determined that the variations in size of the fox and vole populations were similar, but they both were of low amplitude and not closely correlated. The high pregnancy rate (mean, 86%/yr) and numbers of young conceived (mean, 11.5/pregnancy) did not vary significantly among years, probably because of the consistently …

Nitrogen Source And Application Method: Does It Matter?, Gilbert D. Miller, Jay C. Andersen

Archived Natural Resources Publications

Irrigation management has a greater effect on the amount of nitrate that is leached out of the root one than does the type of nitrogen applied.

Gene Probe Analysis Of Soil Microbial Populations Selected By Amendment With 2,4-Dichlorophenoxyacetic Acid, William Holben, B. M. Schroeter, V. G.M. Calabrese, R. H. Olsen, J. K. Kukor, V. O. Biederbeck, James M. Tiedje

Biological Sciences Faculty Publications

Soils with a history of 2,4-dichlorophenoxyacetic acid (2,4-D) treatment at field application rates and control soils with no prior exposure to 2,4-D were amended with 2,4-D in the laboratory. Before and during these treatments, the populations of 2,4-D-degrading bacteria were monitored by most-probable-number (MPN) enumeration and hybridization analyses, using probes for the tfd genes of plasmid pJP4, which encode enzymes for 2,4-D degradation. Data obtained by these alternate methods were compared. Several months after the most recent field application of 2,4-D (approximately 1 ppm), soils with a 42-year history of 2,4-D treatment did not have significantly higher numbers of 2,4-D-degrading …

Sighting Of A Canyon Wren In Knox County, Nebraska, Mark A. Brogie

Nebraska Bird Review

The Canyon Wren (Catherpes mexicanus) is found in all states west of the Rocky Mountains; however, east of the Rockies it resides only in western Oklahoma, and in western and central Texas, with a separate population in the Black Hills of Wyoming and South Dakota. It has never been recorded in North Dakota or Kansas, or in any state whose entire boundaries lie east of the 100^th meridian (DeSante and Pyle 1986). This species is almost entirely resident over its range, although a few most northerly populations depart in winter, and there are some altitudinal migrations to …

Index To Volume 60, R. G. Cortelyou

Nebraska Bird Review

INDEX TO VOLUME 60

Compiled by R. G. Cortelyou, 5109 Underwood Avenue, omaha, Nebraska 68132

Accipiter sp. 41

Albino 69, 70

Alewife 54

Alexander, Irene 41

Alfred, Norris 35, 148

Allison, Mary 41

Amiotte, Sue 41

An Additional Nebraska Record of Common Eider? 149

Anderson, C. L. 65(2)

Anschutz, Steven 152

Ault, Jim 149, 167

Avocet, American 3, 10, 11, 30, 66, 94, 95, 138, 142, 145

....

Wingfield, Gregg 60, 65 Wolf 156, 157

Wood, Donald 35, 149, Gertrude 35, 41, 149

Wood-Pewee, Eastern 3, 16, 17, 108, 109, 141, 142, 145(2), 146, 167

Western 16, 17, 78, 106, …

International Migratory Bird Day, May 8, 1993

Nebraska Bird Review

The Smithsonian Migratory Bird Center, in cooperation with the Information and Education Working Group of Partners in Flight, is coordinating this first annual event. Individuals and organizations throughout the Western Hemisphere will focus on the conservation of birds that migrate across the Americas. Citizens will participate in bird counts, develop educational displays and other activities, and band together to restore and protect fragile habitats.

Masthead From Nebraska Bird Review (December 1992)

Nebraska Bird Review

Published quarterly in March, June, September, and December by the Nebraska Ornithologists' Union, Inc. as its official Journal, and sent to members not in arrears for dues. Annual subscription rates (on a calendar year basis only) are $12.50 in the United States, $15.00 in Canada and Mexico, and $17.50 for all other countries, payable in advance. Single copies are $4.00 each, postpaid, in the United States; $5.00 elsewhere. Send orders for back issues of the NBR to Thomas E. Labedz, NOU Librarian, W-436 Nebraska Hall, University of Nebraska, Lincoln, NE 68588-0514.

Memberships in NOU (on a calendar year basis only): …

Corrections In Vol. 60, No. 3, P.78, 1992, Rosalind Morris

Nebraska Bird Review

Richard C. Rosche detected two errors in the bird list for the fall field trips in Dawes and Sioux counties. The Chuck-will's widow reported for Sioux County was not seen and should be deleted from the list. The Yellow-bellied Woodpecker reported in Dawes and Sioux counties should be Yellow-bellied Sapsucker. Please inform me about any questionable items, and the corrections will be published in the following issue of the NBR.

Nebraska Ornithologists' Union Annual Meeting, May 14-16, 1993

Nebraska Bird Review

The NOU Annual Meeting will be held at the Marina Inn, South Sioux city, NE, with field trips scheduled for nearby areas. For further information, contact George Brown, President, 2018, 12th Ave., Kearney, NE (308/237-3864), or Scott Purdy, Vice Pres., 2222 Bellwood Drive, Apt. 104, Grand Island, NE 68801 (308/384-8903).

"Notes On Bird Sightings," From Nebraska Bird Review (December 1992)

Nebraska Bird Review

Notes from contributions to "A Bird’s Eye View" (Audubon Society of Omaha) by Ruth C. Green, 506 W. 31 Ave .. Bellevue, NE 68005

AMERICAN WHITE unusually early Lake in western Offut Base Lake PELICAN. Flocks of this species were seen in 1992 fall migration by Julie Schroeder on Curtis Douglas County on July 22, and by Ruth Green at in Bellevue, Sarpy County on July 29.

CATTLE EGRET. In mid-July, 1992, Ruth identified a male Cattle Egret in full breeding plumage as it was chasing insects in the yard of Bob and Elaine Sabin, Bellevue.

RUFOUS HUMMINGBIRD. On August …

Book Review Of Gladys Black's "Iowa Birdlife" From Nebraska Bird Review December 1992, Hazel Scheiber

Nebraska Bird Review

This book is a compilation of 100 of the articles that were published in the Des Moines Register from 1982 to 1992. The profits from the sale of the book will support Conservancy projects to protect and preserve the Iowa bird habitats described in the book.

The author's locale is Pleasantville, a small town southeast of Des Moines in the area around Lake Red Rock, which is between Pella and Knoxville. She has made bird observations every day for 35 years. Through her articles, talks, and field trips, she has done more than anyone else in Iowa to bring the …

Nebraska Bird Review (December 1992) 60(4), Whole Issue

Nebraska Bird Review

Table of Contents

Corrections in Vol. 60 No.3, P. 78 1992…………………….152

Whooping Crane Sightings in Nebraska, Fall 1992…………………….152

International Migratory Bird Day, May 8, 1993 …………………….153

Nebraska Ornithologists' Union Annual Meeting, May 14-16, 1993…………………….153

Bird Items and Their Use in Some Omaha Indian Artifacts …………………….154

Sighting of a Canyon Wren in Knox County, Nebraska …………………….163

Notes on Bird Sightings…………………….166

Book Review…………………….168

Index to Volume 60 …………………….170

Early Behavior Formation In Larval Fathead Minnows, Pimephales Promelas, Shamali Salgado

Masters Theses & Specialist Projects

This study was undertaken in order to identify the approximate times of recruitment of the senses of vision, mechanoreception and chemoreception into the feeding behavior of the fathead minnow, Pimephales promelas, during the first 15 days of life. Larvae were reared on diets of live or freshly killed brine shrimp nauplii and their feeding activity observed daily under light and dark conditions. On every third day during the feeding trials, the larvae were reverse-fed the type of food upon which they were reared. The first evidence of feeding occurred on Day 3, when larvae conditioned on dead food ingested …

Ard News December 1992

Agricultural Research Division: News and Annual Reports

CONTENTS:

SEASONS GREETINGS
ORGANIZATIONS THAT SUPPORT AGRICULTURAL RESEARCH IN LAND GRANT UNIVERSITIES
ARDC INTEGRATED FARM
THE STATE AGRICULTURAL EXPERIMENT STATION SYSTEM
REPRESENTATION ON REGIONAL COMMITTEES
ARD ADMINISTERED GRANT AND AWARDS PROGRAMS
ARD ADVISORY COUNCIL UPDATE
PROPOSALS SUBMITTED FOR FEDERAL GRANTS
NEW OR REVISED PROJECTS
GRANTS & CONTRACTS RECEIVED OCTOBER & NOVEMBER, 1992

The Prairie Naturalist Volume 24, No.4 December 1992

The Prairie Naturalist

NEW VASCULAR PLANT RECORDS FOR NORTIl DAKOTA ▪ B. L. Heidel, A. J. Duxbury, W.T. Barker, and J. R. Challey

GROWTH OF BLUEGILLS AND YELLOW PERCH IN SOUTH DAKOTA WATERS ▪ D.w. Willis, J.P. Lott, C.S. Guy, and D.O. Lucchesi

SEASONAL VARIATION IN SAMPLING DATA FOR WALLEYE AND SAUGER COLLECTED WITH GILL NETS FROM LAKE SAKAKAWEA, NORTH DAKOTA ▪ S.W. Mero andD.W. Willis

OBSERVATIONS ON NESTING OF THE AMERICAN BITTERN IN NORTIlWEST MINNESOTA ▪ W D. Svedarsky

FOOD HABITS OF MOURNING DOVES IN EAST CENTRAL SOUTH DAKOTA ▪ J.T. Van't Hul and J.A. Jenks

DISTRIBUTION OF TIlE PYGMY SHREW IN …