Life Sciences Commons^™

The Taxonomic Value And Variability Of Certain Structures In The Cestode Genus Echinococcus (Rudolphi, 1801) And A Review Of Recognized Species, Robert L. Rausch

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

Although cestodes of the genus Echinococcus have been much studied in the past, there is need for an evaluation of these morphological characters used as the basis for species differentiation. The generous cooperation of other investigators in providing necessary foreign material and the results of nearly five years of field work in Alaska make possible such a study. It is the purpose of the paper to evaluate morphological characters used at the species level to differentiate these cestodes, and to review the status of species currently considered valid.

Economic Analysis Of Forage Production And Utilization In Dakota And Dixon Counties, Nebraska, Howard W. Ottoson

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

Soil erosion remains a serious problem on many Nebraska farms despite programs of financial assistance, technical aid, and education by several national and state agencies. One reason that soil conserving adjustments in land use have not been made by farmers is that considerable uncertainty surrounds the economics of soil erosion control on the farm level. This study is an attempt to increase knowledge and reduce some of the uncertainty with regard to the economics of erosion control in a specific area.

Whole Issue Nebraska Bird Review (October 1953) 21(4)

Nebraska Bird Review

Published quarterly in January, April, July, and October by the Nebraska Ornithologists' Union as its official journal and sent free to all members who are not in arrears for dues. Subscriptions at $3.50 per volume in the United States and $3.75 in all other countries, payable in advance. Single numbers, $1.00 each. All dues and subscriptions should be remitted to the Treasurer, Mrs. F. J. Patton, Blue Springs, Nebraska. Orders for back numbers should be sent to the Custodian, Miss Mary Lou Hanson, University of Nebraska State Museum, Lincoln, Nebraska. All manuscripts for publication should be sent to the Editor, …

On The Status Of Some Arctic Mammals, Robert L. Rausch

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

The mammal fauna of arctic Alaska is comprised of about thirty species, most of which are widely distributed. A few of these are essentially nearctic species, having extended their range northwestward during post-Pleistocene time. The majority, however, consists of forms which are either circumboreal in their distribution, or which have closely-related palearctic counterparts-considered specifically distinct hy most North American mammalogists. Sorne of the foremost Old World workers, however, do not agree that Bering Strait constitutes a barrier which effectively separates the Old World fauna from the New.

Whole Issue Nebraska Bird Review (July 1953) 21(3)

Nebraska Bird Review

Table of Contents

Spring Field Day .......................................................................................... 29

Field Separation of the Herring Gull, California and Ring-bill Gulls ................................................................................32

Meetings and Reports ................................................................. 34

General Notes ....................................................................... 35

Communications ................................................................ 40

Book Reviews ................................................................... 40

Studies On The Helminth Fauna Of Alaska. Xiii. Disease In The Sea Otter, With Special Reference To Helminth Parasites, Robert L. Rausch

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

During the spring of 1951, the U. S. Fish and Wildlife Service undertook the removal of sea otter, Enhydra lutris (L)., from the Aleutian Island of Amchitka, for the purpose of restocking range from which the animals have long been exterminated. The decision to undertake this activity was influenced by the nature of military operations planned for the island later the same year. The capture and removal of the otter were under the supervision of Mr. Robert D. Jones, Biologist, U. S. Fish and Wildlife Service. Heavy losses among the animals shortly after capture made the venture unsuccessful. Many deaths …

Waterfowl Of North Dakota, Paul A. Johnsgard

Papers in Ornithology

North Dakota is a great waterfowl state. Within its borders more ducks nest every summer than in any other state. Each fall thousands of hunters share in the excellent duck and goose hunting, and every school child is aware of the immense flocks of migrating waterfowl that are such a common sight. This booklet was written not only to serve as a guide in identifying these birds, but also to point out something of their habits and importance.

Depositor's note (June 2008): Paul seemed delighted when I presented him the source copy of this little pamphlet, which I had found …

Quantitative Study Of Degeneration Of Mixed Prairie, Farrell Branson, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

The vegetation of great areas of Mixed Prairie has been destroyed by plowing. But even larger ones, still intact, have degenerated far from a climax condition. The almost universal cause for such deterioration, aside from drought, is grazing. The objective of this study has been to ascertain the changes in vegetation that have resulted from 60-70 years of different intensities of grazing by cattle and to express them quantitatively. Since the early work of SAMPSON (7) it has been generally recognized that the forage value and carrying capacity are highest where the vegetation represents a stage close to the herbaceous …

Science And Public Health Research In Alaska: Animal-Borne Diseases [Phr Brief], Robert L. Rausch

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

The study of diseases transmissible from lower vertebrates to man has been carried on since 1948 in Alaska by the Arctic Health Research Center. Emphasis to date has been placed on diseases of helminthic origin. This brief covers hydtaid disease, trichinosis, diphyllobothriasis, as well as rabies and tularemia.

Whole Issue Nebraska Bird Review (April 1953) 21(2)

Nebraska Bird Review

Table of Contents

Twenty-five Year Summary of Bird Migration in Nebraska Part 8 - Gulls to Terns ...................15

President's Page ...................18

News and Announcements ...................19

General Notes ...................20

Book Reviews ...................27

Commercial Fertilizers For Winter Wheat In Relation To The Properties Of Nebraska Soils, R. A. Olson, H. F. Rhoades

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

It is the purpose of this bulletin to report the investigations that have been made correlating soil properties and fertilization practices with yields of winter wheat. Since the success or failure of fertilization practices is so dependent on specific soil conditions, an attempt has been made here to further characterize the major soils of the different sections of the state which are devoted to wheat production and to analyze fertilizer practices and results in relation to the soil properties determined. The data are summarized for the four sections of the state designated as southeastern, east-south-central, west-south-central and western Nebraska. These …

Block And Bridle Annual, 1953

Block and Bridle Student Organization

Table of Contents:

Roster of members
Group picture
Chronicle of Activities
Sample minutes of Regular Meeting
Financial statement
Initiations
New Officers
Activities
Spring Livestock Show
Program of Show
Honors Banquet
Student Livestock Judging Contest
Judging Teams
Senior Meats Team
Senior Wool Team
Senior Livestock and Junior Teams
National Recognition Trophy Award
National Recognition Continued

The Use Of The Monoploid Method For The Production Of Homozygous Diploid Lines Of Corn, Melvin Dale Rumbaugh

Open Access Master's Theses (through 2010)

The development of a practical method of breedings corn through the utilization of homozygous lines obtained from the doubling of monoploids will depend upon the obtaining of a reasonably high rate of monoploids from any particular stock, representing desirable gametes for corn production, and on the successful doubling of such monoploids. This study is an investigation of various aspects of these problems.

Approximately one hundred twenty thousand individual plants representing the progenies of eighteen crosses of corn were examined for monoploid sporophytes. Monoploids were found to occur at a mean frequency of 0.82 per thousand seedlings screened. Significant differences in …

Minutes Of Meeting: 1953

Cherry County Extension: Historical Documents

Meeting Minutes from:

September 16, 1953

Annual Report: 1953

Cherry County Extension: Historical Documents

Annual Program & Accomplishments ........................ 14

Budget Estimate ........................ 17

Cherry County Extension Districts (Map) ........................ 18

Cherry County 4-H Clubs (Map) ........................ 31

Cherry County 4-H Committee ........................ 13

Cherry County Non-Stock Cooperative Labor Association ........................ 12

Clarke-McNary Forestry Cooperators (Graph) ........................ 66

Community Development & Public Affairs ........................ 82

Crop Production ........................ 33

Distribution of Windbreak Plantings (Map) ........................ 67

Farm Buildings & Mechanical Equipment ........................ 72

Farm Labor (Graph) ........................ 58

Farm Management ........................ 68

Feature Story ........................ 90

Foods & Nutrition, Health, Family Life & Safety ........................ 80

Form of Organization ........................ 19

4-H Club Work …

Influence Of Certain Soil-Proftle Characteristics Upon The Distribution Of Roots Of Grasses, R. L. Fox, J. E. Weaver, R. C. Lipps

Papers of John E. Weaver (1884-1956)

A method has been devised by Weaver and his coworkers (15) by which a root system may be sampled from the soil surface to a depth of maximum root penetration. The root system may then be separated from the soil without vertical displacement, photographed, and compared with soil profile characteristics. In the present investigation an attempt has been made to relate some chemical and physical properties of the soil to root distribution.

Streptomyces Leidnematis N. Sp., Growing On Two Species Of Nematodes Of The Cockroach, Glenn L. Hoffman

United States Fish and Wildlife: Staff Publications

In 1948 Mr. J. R. Wennemark called the writer's attention to a filamentous growth extending from the cuticle of Leidynema appendiculata and Hammerschmidtiella diesingi, oxyurid nematodes found in the intestine of the American roach, Periplaneta americana, which was collected in Iowa City, Iowa. Because of the extreme filamentous accumulation it was thought to be the mycelium of a fungus. Further observation on material from roaches reared in Grand Forks, North Dakota, and Detroit, Michigan, showed that the organism was not fungus but a member of the Actinomycetaceae. Slides were sent to Profs. R. S. Breed and H. J. …

Visiting National Wildlife Refuges, Douglas Mckay, John L. Farley

United States Fish and Wildlife: Staff Publications

If you travel in the wilder sections of our country, sooner or later you are likely to meet the sign of the flying goose-the emblem of the National Wildlife Refuges.

You may meet it by the side of a road crossing miles of flat prairie in the Middle West, or in the hot deserts of the Southwest. You may meet it by some mountain lake, or as you push your boat through the winding salty creeks of a coastal marsh.

Wherever you meet this sign, respect it. It means that the land behind the sign has been dedicated by the …

Avian Botulism Information On Earlier Research

United States Fish and Wildlife: Staff Publications

Over the years, the disease, avian botulism, has been an important factor limiting populations of waterfowl, particularly in the West. Great numbers (doubtless millions) of ducks have died from this disease, and because of such heavy tolls, studies of the malady were begun early in the century and continued intermittently to the present time.

This summary brings up to 1950 the series of investigations on botulism by Wetmore (1918), Kalmbach (1930, 1932), Kalmbach and Gunderson (1934), Sperry (1947), and others. This information has been compiled as a service to those concerned with conservation of our waterfowl resources. A cooperative agreement …

Mourning Dove Newsletter, Issue No. 7

United States Fish and Wildlife: Staff Publications

This issue contains a summary of Mourning Dove populations data for assistance to the states and the Fish and Wildlife Service in preparing dove hunting regulations. It will also be of interest to all persons working on this important migratory game bird, whether in state game departments, institutions of learning, or individuals.

The previous issue was number 6, June 30, 1952. Since that date many of the southeastern dove projects have either been terminated or modified, so that information has not been gathered as extensively on populations during the past year as formerly. Consequently the major data available at this …

Concerning The Site Of Nitrogen Absorption In Rats Fed Autoclaved Or Raw Soybean Oil Mea, Raymond Borchers

Department of Biochemistry: Faculty Publications

Carroll, Hensley, and Graham (1) have concluded that much of the nitrogen absorption in rats fed raw soybean oil meal must take place in the cecum. This conclusion was reached from data showing that the apparent digestibility of raw soybean nitrogen in the terminal 20% of the small intestine was 32.65%, whereas in the feces the value was 76.96%. Values reported, for apparent digestibility of heated soybean nitrogen were 78.66% and 81.78%, respectively. This observation presented a notable advance in explaining the lower nutritive value of raw soybeans compared with autoclaved soybeans. It therefore seemed advisable to repeat this work …

Whole Issue Nebraska Bird Review (Jan 1953) 21(1)

Nebraska Bird Review

Table of Contents

Two New Birds Added to the Nebraska List .................. 2

The Pileated Woodpecker Returns to Nebraska ...................... 3

Birds at Wayne (Nebraska). ....................... 4

Fall Field Day, 1952 ........................ 5

News and Announcements............................8

General Notes ............................9

Communications ............................12

Book Reviews ............................13

Cytochromes And The Succinic Acid Oxidase System Of Poky Strains Of Neurospora, Francis A. Haskins, Alfred Tissieres, Herschell K. Mitchell, Mary B. Mitchell

Department of Agronomy and Horticulture: Faculty Publications

Recent investigations in this laboratory (1) have demonstrated that in Neurospora crassa growth characteristics representing at least two stable states are possible with the same constitution of nuclear genes. If a slow growing strain, designated poky, functions in a cross to wild type as the "maternal" or protoperithecial parent, then all progeny from the cross exhibit the poky character. If the cross is made in the reverse, or reciprocal manner, that is, with the wild type strain functioning as a protoperithecial parent, then all progeny are normal in growth rate.
During the course of the work on inheritance it was …

An Annotated List Of The Orthoptera Of Nebraska Part Ii The Tettigidae And Acrididae, Harold A. Hauke

Bulletin of the University of Nebraska State Museum

This is the second of a series of papers on the Orthoptera of Nebraska. It is a continuation of the revision of an unpublished thesis on this subject by the author in 1934.

On The Land Mammals Of St. Lawrence Island, Alaska, Robert L. Rausch

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

The mammals occurring on St. Lawrence Island, Alaska, represent species which are widely distributed in boreal regions. They are not well known, however, and are poorly represented in collections. In the past, some of these mammals have been regarded as being specifically distinct from closely related forms occurring on the adjacent continents. It is the purpose of this paper to present some new data on these mammals, with particular reference to their taxonomy.

Two New Species Of Prosorhynchinae (Trematoda : Gasterostomata) From The Fiji Islands, Harold W. Manter

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

The following trematodes are part of a collection made by the author at Suva, Fiji in 1951.

1. Prosorhynchus squamatus Odhner, 1905 is believed to be distinct from P. crucibulus and most other species in the genus on the basis of its oval-shaped rhynchus. It thus remains, as originally, the type species of the genus.

2. Prosorhynchus thapari n. sp. is described from Plectropoma maculatum (Bloch) from Suva, Fiji. The "P. facilis (Ozaki, 1924)" of Nagaty (1937) is considered to be a synonym.

3. Neidhartia polydactyli n. sp. is described from Polydactylus plebius (Bonnaterre) from Suva, Fiji.

Some Monogenetic Trematodes Of Marine Fishes From Fiji, H. W. Manter, Donald F. Prince

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

This paper describes three new species of monogenetic trematodes collected by the senior author from fishes at Suva, Fiji, in 1951. A new genus is named for one of these species. A fourth species, previously known from India, is identified. Parasites of the numerous fishes of the South Pacific have been studied very little and, so far as we can learn, no Monogenea has been reported from this region. One difficulty met in collecting there was lack of adequate identification of the hosts. In these particular cases, only the common or native names of the fishes were obtained. Often, however, …

Studies On The Helminth Fauna Of Alaska. Xiv. Some Cestode Parasites Of The Aleutian Teal (Anus Crecca L.) With The Description Of Diorchis Longiovum N. Sp., Everett Schiller

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

The Aleutian teal (Anas Crecca nimia Friedmann) has been relatively unavailable for helminth investigations by American workers because its range in North America is restricted to the western-most Aleutian Islands.

During some parasitological studies on Amchitka, Aleutian Islands, Alaska, in May and early June 1952, in connection with sea otter mortality, the writer had the opportunity to collect 20 adult Aleutian teal. These birds, consisting of 16 males (average weight, 392 grams) and 4 females (average weight, 353 grams) were taken at the beginning of the nesting season, Autopsies revealed that 16 (80%) of these ducks were parasitized by cestodes. …

Research Notes: Scaphanocephalus Expansus (Crepl.), A Trematode Of The Osprey, In North America, Glenn L. Hoffman

United States Fish and Wildlife: Staff Publications

Examination of an osprey, Pandion haliaetus carolinensis furnished by Mr. Melvin Hoffman, Strawberry Point, Iowa, May, 1948, revealed about 30 trematodes which proved to be Scaphanocephalus expanses (Crepl.). This species which was redescribed in detail by Jagerskiold, (1904; Results of the Swed. Zool. Exped. Egypt and White Nile 1901 pt. 1) has a very large "expanded" flap-like anterior end and, to my knowledge, resembles no other trematode in that respect. The specimens have been deposited in the U. S. Nat'l Mus. Helm. Coll. as No. 46437. Mr. Allen McIntosh (personal communication) has informed me that S. expanses has been recorded …

Experiments In Transmission Of Theileriasis And Anaplasmosis Of Sheep Through Ticks Ornithodoros Lahorensis And Haemaphysalis Sulcata, P. A. Bitukov

United States Naval Medical Research Unit 3: Publications

First paragraph:

In conducting inspection of sheep on haemosporidiosis in some districts of South-Kazakhstankoi region, we repeatedly observed theileriasis and anaplasmosis of sheep.

Note: Numerous other experimental data in this paper are omitted from the present translation. This report is of special interest because it establishes the role of an argasid tick as a vector of blood protozoa. Translation made and distributed by Medical Zoology Department, U. S. Naval Medical Research Unit no. 3, Cairo, Egypt.