Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

University of Nebraska - Lincoln

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 38461 - 38490 of 40084

Full-Text Articles in Entire DC Network

The Need For An Integrated Control Strategy For Orchard Mouse Damage, Robert Stehn, Elizabeth Johnson, Milo Richmond Mar 1977

The Need For An Integrated Control Strategy For Orchard Mouse Damage, Robert Stehn, Elizabeth Johnson, Milo Richmond

Eastern Pine and Meadow Vole Symposia

During the last six years the N.Y. Coop. Wildlife Research Unit has been involved in research on pine voles. Projects have included studies of reproduction in the laboratory, population biology in orchards and testing of pine vole control toxicants. Field work has been restricted to a few orchards in Ulster and Orange counties in the Hudson Valley. Therefore some of the results may reflect local conditions and should be regarded as preliminary in nature. Work involving control procedures has indicated that hand baiting with anticoagulant pellets under previously established bait stations averages 85 percent reduction in pine vole numbers. Anticoagulant …


Agricultural Experiment Station News March 1977 Mar 1977

Agricultural Experiment Station News March 1977

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – February 1977
BULLETINS PRINTED


The Prairie Naturalist Volume 9, No. 1. March 1977 Mar 1977

The Prairie Naturalist Volume 9, No. 1. March 1977

The Prairie Naturalist

NESTING BY FERRUGINOUS HAWKS AND OTHER RAPTORS ON HIGH VOLTAGE POWERLINE TOWERS ▪ D. S. Gilmer and J. M. Wiebe

ARTHROPODS CONSUMED BY AN IMMATURE MARBLED GODWIT ▪ R. M. Timm and R. M. Zink

NOTES

Black-headed Grosbeak in Jamestown, North Dakota ▪ R. Lender

Summer Record of Red-breasted Nuthatch in North Dakota ▪ R. Lender

BOOK REVIEWS

Minnesota's Wild Flowers ▪ Staff

In Search of Eagles ▪ J. Lokemoen

Forest and Range Research ▪ Staff

An Economic Analysis of Recycling ▪ Staff


Growing Degree Days Predictions For Corn And Sorghum Development And Some Applications To Crop Production In Nebraska, R. E. Neild, M. W. Seeley Mar 1977

Growing Degree Days Predictions For Corn And Sorghum Development And Some Applications To Crop Production In Nebraska, R. E. Neild, M. W. Seeley

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The concept of growing degree days (GDD) originated with observations by Reamur (1735) that plant development is more closely related to the temperature accumulated to a given stage than with time alone. It was not until nearly 200 years later, however, that Merriam (1894), Livingston (1916) and Klages (1942) began to use temperature accumulations in plant distribution studies and in crop geography. In the early 1950's, a system involving growing degree days became widely used in the canning industry to schedule plantings and thus control time of harvest of rapidly maturing vegetables. This system provided a more precise control of …


Water Current, Volume 9, No. 2, March/April 1977 Mar 1977

Water Current, Volume 9, No. 2, March/April 1977

Water Current Newsletter

NWRC Research Overview
Exon Creates Drought Task Force
Kremer Suggest Comprehensive Water Code
Department of Interior Appointees
Review of Water Resources Projects Initiated
OWRT Urges Restoration of Water Science Money
Northern Plains Groundwater Tests Encouraging
Automation Helps Water Chemists Keep Up with New Pollutants
Research Review: Herbicide Transport in Soil Under Center Pivot Irrigation Systems


Can Physics Develop Reasoning?, Robert Fuller, Robert Karplus, Anton E. Lawson Feb 1977

Can Physics Develop Reasoning?, Robert Fuller, Robert Karplus, Anton E. Lawson

Robert G. Fuller Publications

The life of every physicist is punctuated by events that lead him to discover that the way physicists see natural phenomena is different from the way non-physicists see them. Certain patterns of reasoning appear to be more common among physicists than in other groups. These include:
• focusing on the important variables (such as the force that accelerates the apple, rather than the lump it makes on your head);
• propositional logic ("if heat were a liquid it would occupy space and a cannon barrel could only contain a limited amount of heat, but this is contrary to my observations, …


Life History And Host Specificity Of Mediorhynchus Centurorum Nickol 1969 (Acanthocephala: Gigantorhynchidae), Brent B. Nickol Feb 1977

Life History And Host Specificity Of Mediorhynchus Centurorum Nickol 1969 (Acanthocephala: Gigantorhynchidae), Brent B. Nickol

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Examination of 1905 arthropods from a swamp and surrounding pasture in southern Louisiana revealed larval specimens of Mediorhynchus centurorum in 8 of 228 woodroaches, Parcoblatta pensylvanica, but in no other species. The life cycle was confirmed by feeding eggs of M. centurorum to laboratory-reared woodroaches. Cystacanths later recovered from the woodroaches developed into mature worms when pipetted into esophaguses of red-bellied woodpeckers, Centurus carolinus; redheaded woodpeckers, Melanerpes erythrocephalus; yellow-shafted flickers, Colaptes auratus; and a hairy woodpecker, Dendrocopos villosus. Infection was achieved in all woodpeckers fed cystacanths at least 47 days old and the mean prepatent …


Aploparaksis Borealis Sp. N. (Cestoda: Hymenolepididae) From Passeriform And Charadriiform Birds In Chukotka And Alaska, S. K. Bondarenko, Robert L. Rausch Feb 1977

Aploparaksis Borealis Sp. N. (Cestoda: Hymenolepididae) From Passeriform And Charadriiform Birds In Chukotka And Alaska, S. K. Bondarenko, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Aploparaksis borealis sp. n. (Cestoda: Hymenolepididae), from the long-tailed jaeger, Stercorarius longicaudus Vieillot, on the Seward Peninsula, Alaska, and from the red-throated pipit, Anthus cervinus (Pallas), and the Lapland longspur, Calcarius lapponicus (Linnaeus), in Chukotka, northeastern Siberia, is described. This cestode is distinguished by the structure of the cirrus and other morphologic characters from other species of Aploparaksis Clerc 1903 in which there are 10 rostellar hooks and the vitelline gland is aporal to the ovary. A. borealis is the first species of Aploparaksis to be reported from birds representing two orders (Passeriformes and Charadriiformes).


"Introduction" To The Great Plains: Environment And Culture, Frederick C. Luebke Jan 1977

"Introduction" To The Great Plains: Environment And Culture, Frederick C. Luebke

Department of History: Faculty Publications

In the pages that follow I have summarized the views of certain selected scholars whose emphases seem to illustrate changing and contrasting interpretations of the interaction of environment and culture on the Great Plains. I have grouped their writings into two inclusive categories. First come those whose conceptual schemes suggest the primacy of environmental variables. I refer to these scholars, perhaps simplistically, as environmentalists, even though this term has acquired a different meaning in recent years. In the second group are several scholars, selected more arbitrarily than the first, whose writings seem to accord more importance to cultural factors. For …


Farm, Ranch And Home Quarterly Institute Of Agriculture And Natural Resources, University Of Nebraska- Lincoln Jan 1977

Farm, Ranch And Home Quarterly Institute Of Agriculture And Natural Resources, University Of Nebraska- Lincoln

Farm, Ranch and Home Quarterly

In this issue: 2 A Message from the Vice Chancellor

3 Research Returns Tip the Scales

5 Herbicides-Broadcast or Band?

7 Ag Students: The Changing Profile

8 Infant Diets Studied with Mothers' Help

10 Machinery Trading and Taxes

12 Trees for Profit

14 "Dairy Store" Serves Students, Staff and Stomachs

16 Irradiation Holds Potential for Nebraska 1

8 Back to the Farm

20 Fire at Pine Ridge

23 Farmers Keep Tabs on Energy


G77-355 A Guide For The Control Of Flies In Nebraska Feedlots And Dairies (Revised March 1990), John B. Campbell Jan 1977

G77-355 A Guide For The Control Of Flies In Nebraska Feedlots And Dairies (Revised March 1990), John B. Campbell

University of Nebraska-Lincoln Extension: Historical Materials

Flies, especially stable and house flies, can create serious and costly problems for feedlot and dairy operations. This publication describes several methods for control.

Several species of flies may be in confined livestock facilities during summer. The stable and house fly are the most serious pests. Blow flies also may be present if molasses is in the diet. Horn flies--small blood-feeding flies--may be present in early spring. These flies overwinter as pupae in or near manure pats in range or pasture. If cattle are not present in the grassland when horn flies emerge, they will migrate to confinement cattle. Normally, …


Upland Nesting Of American Bitterns, Marsh Hawks, And Short-Eared Owls, Harold F. Duebbert, John T. Lokemoen Jan 1977

Upland Nesting Of American Bitterns, Marsh Hawks, And Short-Eared Owls, Harold F. Duebbert, John T. Lokemoen

United States Fish and Wildlife Service: Publications

Nests of American Bitterns (Botaurus lentiginosus), marsh hawks (Circus cyaneus), and short-eared owls (Asio flammeus) are usually found in wetland habitats. Although large marshes containing dense stands of bulrushes (Scirpus), cattails (Typha), or other wetland vegetation are favored nesting cover, these birds have also been reported to nest in stands of tall, dense shrubs and grasses on the upland (Bent 1961, 1963; Palmer 1962; Sealy 1967; Stewart 1975). During 1968-74, we regularly found upland nests of these three species while conducting duck nesting studies in planted fields of undisturbed grass-legume …


Inventory Of Wetland Habitat Usig Remote Sensing For The Proposed Oahe Irrigation Unit In Eastern South Dakota, Robert G. Best, Donald G. Moore Jan 1977

Inventory Of Wetland Habitat Usig Remote Sensing For The Proposed Oahe Irrigation Unit In Eastern South Dakota, Robert G. Best, Donald G. Moore

United States Fish and Wildlife Service: Publications

An inventory of wetlands for the area included in the proposed Oahe Irrigation Project was conducted to provide supplemental data for the wildlife mitigation plan. This report including the data summaries follows a report which documented the interpretation techniques as presented by Best, Moore, and Brewster for inventoryinq small, predominantly Type I wetlands in the low-relief terrain of the Lake Dakota Plain. Wetland habitat in over 310,000 acres in the Oahe irrigation district was inventoried. There were 5305 wetlands representing 7530 acres, 589 acres of natural drains, and 1545 acres of stream habitat in the area. The data were stored …


Argulus, A Branchiuran Parasite Of Freshwater Fishes, G. L. Hoffman Jan 1977

Argulus, A Branchiuran Parasite Of Freshwater Fishes, G. L. Hoffman

United States Fish and Wildlife Service: Publications

"Fish lice" of the genus Argulus (suborder Branchiura) are Common parasites of freshwater fish, and may occur on frogs and salamanders. Argulids often cause severe mortality of fish in farm ponds, and sometimes in natural waters. Because information on life cycles, ecology, and host specificity is incomplete only a generalized account can be given.


Spring Viremia Of Carp, Winfried Ahne, Ken Wolf Jan 1977

Spring Viremia Of Carp, Winfried Ahne, Ken Wolf

United States Fish and Wildlife Service: Publications

Dating back nearly SO years and possibly even to the Middle Ages, European pond culture of carp (Cyprinus carpio) and perhaps other cyprinid fishes has been plagued with a contagious disease of great importance. Variously known as infectious dropsy, infectious ascites, hemorrhagic septicemia, or rubella, the disease is probably the most serious cause of losses among these fishes; nearly sao reports have been published on the subject.


Pod Conference Participants Jan 1977

Pod Conference Participants

Professional and Organizational Development Network in Higher Education: Conference Materials

No abstract provided.


Us Army Foreign Science And Technology Center, Unit History, Fy 1963-Fy 77 (Unredacted), Robert Bolin , Depositor Jan 1977

Us Army Foreign Science And Technology Center, Unit History, Fy 1963-Fy 77 (Unredacted), Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This document is a basic organizational history of the Foreign Science and Technology Center (FSTC). It describes how FSTC was built out of various Army technical intelligence organizations; traces its relocations eventually culminating in settling into a federal building in Charlottesville, VA; and traces its various reorganizations and changes in staffing.

Appendix A contains a detailed discussion of FSTC Table of Distribution and Allowances (TDAs) changes over the years. That analysis shows how administrative problems were handled and how the focus of the organization had changed over the years. It also contains organizational charts corresponding to new TDAs, and tables …


Visual Detection Of Cryptic Prey By Blue Jays (Cyanocitta Cristata), Alexandra T. Pietrewicz, Alan Kamil Jan 1977

Visual Detection Of Cryptic Prey By Blue Jays (Cyanocitta Cristata), Alexandra T. Pietrewicz, Alan Kamil

Avian Cognition Papers

Blue jays learned to respond differentially to the presence or absence of Catocala moths in slides. This detection of the moths by the jays was affected by the background upon which the moth was placed and its body orientation, thus providing an objective measure of crypticity. These procedures are useful for the study of visual detection of prey.


Ak-Sar-Ben Beef Seminar Ill, Knights Of Ak-Sar-Ben Jan 1977

Ak-Sar-Ben Beef Seminar Ill, Knights Of Ak-Sar-Ben

University of Nebraska Historical Extension: Bulletin

Opening Remarks - Mr. Robert G. Volk

"Objectives of 4-H" - Dr. William E. Caldwell

Moderator's Remarks - Dr. Frank H. Baker

"Carcass Characteristics of Various Breed Crosses" — Dr. Robert Koch

Production Committee Report - Mr. Chuck Schroeder

Judges Committee Report - Dr. Miles McKee

Marketing and Distribution Report - Mr. Carl Gardner

Education Committee Report - Dr. Joe Hughes

Summary of Ak-Sar-Ben Beef Seminar III - Moderator

News Release on Ak-Sar-Ben Beef Seminar III


Ec77-720 Selecting Dairy Manure Handling Systems Jan 1977

Ec77-720 Selecting Dairy Manure Handling Systems

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 77-720 discusses selecting dairy manure handling systems from the Agricultural Engineer's Digest.


Responsibility In Anthropology (A Review Of The Life And Culture Of Ecotopia By E. N. Anderson, Jr.), Prudence Sadler Jan 1977

Responsibility In Anthropology (A Review Of The Life And Culture Of Ecotopia By E. N. Anderson, Jr.), Prudence Sadler

Nebraska Anthropologist

A great deal of discussion in recent anthropological literature has been directed toward "relevance in anthropology". The issues which are confronted under the concept of relevance in anthropology would be perhaps more correctly labeled "responsibility in anthropology".

Relevance is defined as pertinence and, social applicability, in other words, the ability, to satisfy a need. The concept of responsibility encompasses this social applicability but also includes moral and rational accountability for one's conduct and obligations. Not only is it the ability to satisfy a need but the accountability for the actions taken to satisfy the need and the repercussions which follow. …


Preliminary Survey Of Heavy Metal Contamination Of Channel Catfish In Nebraska, David Oates, Norman Stucky Jan 1977

Preliminary Survey Of Heavy Metal Contamination Of Channel Catfish In Nebraska, David Oates, Norman Stucky

Nebraska Game and Parks Commission: Staff Research Publications

The concentration of six heavy metals in channel catfish (Ictalurus punctatus) fillets from seven watersheds In Nebraska have been measured. With the exception of mercury, in no instance did levels exceed limits set by regulatory agents. Also, with the exception of mercury, concentrations of heavy metals did not differ significantly in the agricultural and industrial areas.


Karyotypes Of Shrews Of The Genera Cryptotis And Blarina (Mammalia: Soricidae), Hugh H. Genoways, James C. Patton Iii, J. R. Choate Jan 1977

Karyotypes Of Shrews Of The Genera Cryptotis And Blarina (Mammalia: Soricidae), Hugh H. Genoways, James C. Patton Iii, J. R. Choate

University of Nebraska State Museum: Mammalogy Papers

Cryptotis parva has a diploid number of 52 and a fundamental number of 50. Blarina brevicauda in Nebraska and Pennsylvania has a diploid number of 49 or 50 and a fundamental number of 48. Blarina carolinensis in Nebraska and Kansas has a diploid number of 52 and a fundamental number of 62. The X-chromosome in all 3 species is a large metacentric chromosome. The Y-chromosome is a small acrocentric in Blarina, whereas in Cryptotis it is a small subtelocentric.


Propagule Dispersal Among Forest Islands In Southeastern South Dakota, J. Warren Ranney, W. Carter Johnson Jan 1977

Propagule Dispersal Among Forest Islands In Southeastern South Dakota, J. Warren Ranney, W. Carter Johnson

United States Department of Energy: Publications

The study of seed dispersal between the widely separated forest patches (forest islands) of the eastern Great Plains can contribute to understanding effects of deforestation in the more complex forest island landscapes of the eastern United States. In the East, there is growing concern that the dissection of regional forests and the creation of small forest islands surrounded by non-forest uses (e.g., agriculture) may be affecting plant species richness and developmental patterns of vegetation (Levenson 1976), as has already been noted in the tropics (Gomezpompa et al. 1972). Curtis (1956) showed that the presettlement forest area in a portion of …


Channel Catfish Virus Disease, John A. Plumb Jan 1977

Channel Catfish Virus Disease, John A. Plumb

United States Fish and Wildlife Service: Publications

Channel catfish virus disease (CCVD) is an acute infection of cultured fry and fingerling channel catfish (Ictalurus punctatus). The causative agent is the channel catfish virus (CCV) , a member of the herpesvirus group. Since its first identification (Fijan 1968) the virus has been isolated from infected fish collected during epizootics at catfish hatcheries in the warmer latitudes of the United States. The disease is found primarily during the summer and, with a single known exception to date, in fish less than 4 months old. The virus has been isolated only from fish taken while an epizootic was …


Yellow-Crowned Night Herons Sighted In North Dakota, Dennis G. Jorde, Gary L. Krapu, Robert K. Green Jan 1977

Yellow-Crowned Night Herons Sighted In North Dakota, Dennis G. Jorde, Gary L. Krapu, Robert K. Green

United States Fish and Wildlife Service: Publications

Yellow-crowned night herons (Nyctanassa violacea) sighted at four locations in North Dakota during 1976 appear to be the first observations of this species for the State. We sighted a single individual about 8 km south of Medina, North Dakota in western Stutsman County during several visits in June and July 1976. The bird was first seen on 23 June standing in a pasture adjoining an 8.5 ha semi-permanent marsh. On following visits, the heron usually was seen perched in trees at the edge of the wetland. A single yellow-crowned night heron was sighted on the same wetland on …


Water Current, Volume 9, No. 1, January/February 1977 Jan 1977

Water Current, Volume 9, No. 1, January/February 1977

Water Current Newsletter

Nebraska Water Resources Center Annual Report
Interdisciplinary Water Resources Seminar
Water Research in Nebraska
OWRT Seeks Applications for One-Year Appointment as Researcy Scholar
Carter Transition Team Blasts BUREC, Corps
Interstate Conference Wants WRC Directly Under President
National Water Information Network Opens Local Centers
Research Review: Pollution of Irrigation Reuse Water by Plant Pathogens


Alfalfa Latent Virus, A Naturally Occurring Carlavirus In Alfalfa, Yenkateswarlu Veerisetty, Myron K. Brakke Jan 1977

Alfalfa Latent Virus, A Naturally Occurring Carlavirus In Alfalfa, Yenkateswarlu Veerisetty, Myron K. Brakke

Department of Plant Pathology: Faculty Publications

Alfalfa latent virus (ALV), a new member of the carlavirus group, was isolated From alfalfa (Medicago sarivo) clones from rbe University of Nebraska experimental plots and from the Farmers' fields. The pea aphid, Acvrihosiphon pisum, transmitted this virus to M. sativa, Pisum sativum, and Viria faba. but not to Trifolium pratense. It was also sap transmissible to V. faba, V. villoso, and P. sarivum, but was not seed-borne in P. sariuum. In V. Jaba sap ALV was infectious at 65 but not at 70 C in 10 min. or …


Cornposting Converts Waste Into Valuable Resources, Leon Chesnin Jan 1977

Cornposting Converts Waste Into Valuable Resources, Leon Chesnin

Department of Agronomy and Horticulture: Faculty Publications

Rural and urban communities and farms have at least one problem in common: the accumulation of various organic wastes. Farms produce wastes such as animal manures, and crop residues such as straw, corn cobs, hay stack bottoms and spoiled silage.
In Nebraska's towns and cities, the organic wastes include sewage sludge, paunch manure from slaughter houses, and garbage originating from household foods and paper.
Some of these organic wastes are associated with the nuisances of flies, odors and dust. Fresh animal manures, paunch manure, sewage sludge and garbage are favorite breeding places for flies. Flies are attracted to odors and …


Water Resources Data For Nebraska Water Year 1976 Jan 1977

Water Resources Data For Nebraska Water Year 1976

Conservation and Survey Division: Faculty and Staff Publications

Water resources data for the 1976 water year for Nebraska consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and water levels and water quality in wells and springs. This report contains discharge records for 146 gaging stations; stage and contents for 9 lakes and reservoirs; water quality for 40 gaging stations, 18 ungaged stations, 27 partial-record flow stations, and 96 wells; and water levels for 66 observation wells. Also included are 114 crest-stage partial-record stations and 12 low-flow partialrecord stations. Additional water data were collected at various sites, not part …