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Articles 1831 - 1860 of 2036

Full-Text Articles in Animal Sciences

Spezialistenverzeichnis Für Die Bearbeitung Der Arthropodenfauna Der Mvr, Manfred Dorn, Michael Stubbe Jan 1981

Spezialistenverzeichnis Für Die Bearbeitung Der Arthropodenfauna Der Mvr, Manfred Dorn, Michael Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Seit mehr als 20 Jahren führen Biologen der Staatlichen Mongolischen Universität Ulan-Bator und von Akademie-Instituten der Mongolischen Volksrepublik gemeinsam mit Zoologen und Botanikern befreundeter wissenschaftlicher Partnereinrichtungen insbesondere der DDR, der UdSSR, der CSSR sowie der Volksrepublik Ungarn in großem Umfang Expeditionen zur Erforschung der biologischen Ressourcen der MVR durch. Im Rahmen dieser Expeditionen wurde unter anderem ein umfangreiches Arthropodenmaterial gesammelt, dessen Bearbeitung einen wesentlichen Beitrag zur Erschließung der mongolischen Entomofauna darstellt. Von besonderer Bedeutung sind die Veröffentlichungen in der bereits auf 7 Bände angewachsenen Publikationsreihe "Nasekomye Mongolii" (Leningrad), die Ergebnisse der Expeditionen von Dr. Z. KASZAB (Budapest) sowie jene der …


Die Entwicklung Der Lehrstühle Für Zoologie Und Botanik An Der Mongolischen Staatsuniversität Ulan-Bator, Naniragijn Dawaa, Zedengijn Schamsran Jan 1981

Die Entwicklung Der Lehrstühle Für Zoologie Und Botanik An Der Mongolischen Staatsuniversität Ulan-Bator, Naniragijn Dawaa, Zedengijn Schamsran

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Describes the history of the Zoology and Botany Departments in the National University of Mongolia before 1981.


Die Entwicklung Der Zasammenarbeit Auf Biologischem Gebiet Zwischen Der Mvr Und Ddr Seit 1962, Michael Stubbe, Naniragijn Dawaa, Werner Hilbig, Zedengijn Schamsran Jan 1981

Die Entwicklung Der Zasammenarbeit Auf Biologischem Gebiet Zwischen Der Mvr Und Ddr Seit 1962, Michael Stubbe, Naniragijn Dawaa, Werner Hilbig, Zedengijn Schamsran

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Mit zwei großen komplexen biologischen Sammelexpeditionen 1962 und 1964 der Akademien der Wissenschaften der DDR und MVR in die Süd- und Westmongolei wurde der Grundstein für die kontinuierliche Entwicklung der Wissenschaftskooperation auf biologischem Gebiet zwischen beiden Staaten gelegt. Die Kollektionen wurden zum Grundstock eines aufzubauenden botanischen und zoologischen Sammlungsfundus in Ulan-Bator. Durch den Freundschaftsvertrag zwischen den Universitäiten Halle und Ulan-Bator im Jahre 1967 wurden die Kontakte neu aktiviert. Nach anfänglich sporadischen Studienaufenthalten und Expeditionsreisen von Einzelwissenschaftlern wurde das Forschungsprogramm auf biologischem Gebiet im Rahmen dieses Freundschaftsvertrages recht bald auf Schwerpunktaufgaben ausgerichtet, die sich lückenlos in das Forschungsprofil des mongolischen Vertragspartners …


Die Erforschung Der Herpetofauna Der Mongolischen Volksrepublik: Situation Und Perspektiven, Günther Peters Jan 1981

Die Erforschung Der Herpetofauna Der Mongolischen Volksrepublik: Situation Und Perspektiven, Günther Peters

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

First paragraph:

Die Landschaften der Mongolei sind arm an Reptilien- und Amphibienarten. Dieser Umstand mag die Frage aufwerfen, ob herpetologische Untersuchungen in Beschränkung auf das Territorium der MVR eine nennenswerte Perspektive haben könnten, nachdem Artenspektrum und Verbteitung der Species annähernd vollständig erkundet sind. Ein Herpetologe wird zweifellos für seine Arbeit auch in diesem Land eine Zukunft sehen, doch muß wohl von vornherein eingestanden werden, daß das Volumen der Probleme dieses Faches hinter denen der übrigen Disziplinen der Vertebratenzoologie und der Entomologie in einem bescheidenerem Rahmen verbleibt. Dies gilt sowohl im rein wissenschaftlichen als erst recht auch im angewandten Bereich ihrer …


Abkommen Über Freundschaft Und Zusammenarbeit Zwischen Der Martin-Luther-Universität Halle-Wittenberg Und Der Mongolischen Staatlichen Universität Ulan-Bator--Entwicklung Und Ausblick, J. Schuh, D. Batsuur Jan 1981

Abkommen Über Freundschaft Und Zusammenarbeit Zwischen Der Martin-Luther-Universität Halle-Wittenberg Und Der Mongolischen Staatlichen Universität Ulan-Bator--Entwicklung Und Ausblick, J. Schuh, D. Batsuur

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

First paragraph:

Wenn die Mongolische Staatliche Universität Ulan-Bator ihrem 40. Gründungstag entgegengeht, der folgerichtig in dem revolutionären Aufbruch aus einer alten Geschichte des mongolischen Volkes in eine sozialistische Gessellschaft begründet liegt, so treffen sich seit über einem Jahrzehnt in diesem wissenschaftshistorischen Zeitraum auch Wissenschaftler und Studenten der Martin-Luther-Universität Halle-Wittenberg mit ihren mongolischen Kollegen und Freunden der Mongolischen Staatlichen Universität Ulan-Bator zu geistiger Begegnung und gemeinsamer wissenschaftlicher Arbeit. Sie entspringt den gleichen Zielen einer sozialistischen Gesellschaft, Bildung, Kultur und Wissenschaft zur allseitigen Entwicklung der Persönlichkeit, zur stetigen Verbesserung des Volkswohlstandes, für Völkerverständigung und sozial-historischen Fortschritt zu entfalten.


Collastoma-Kozloffi Sp-N, A Neorhabdocoel Turbellarian From The Intestine Of The Sipunculan Themiste-Dyscrita, Clinton A. Westervelt Jan 1981

Collastoma-Kozloffi Sp-N, A Neorhabdocoel Turbellarian From The Intestine Of The Sipunculan Themiste-Dyscrita, Clinton A. Westervelt

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Collastoma kozloffi sp. n. is described from the intestine of the sipunculan, Themiste dyscrita, collected at three localities on the Oregon coast. This species is particularly distinctive because of its large egg capsule (length about 400-500 ,m). The relationships of the five known species of Collastoma are discussed.


Reproductive Success Of The White-Faced Ibis: The Effects Of Pesticides And Colony Characteristics, Benjamin B. Steele May 1980

Reproductive Success Of The White-Faced Ibis: The Effects Of Pesticides And Colony Characteristics, Benjamin B. Steele

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Reproductive success of white-faced ibis (Plegadis chihi) was measured in nine colonies on marshes in northern Utah during 1979. The effects of pesticides and characteristics of colonies and sub-colonies on reproductive success were examined.

DDE was present in all 80 eggs sampled and had a geometric mean concentration of 1.25 ppm. Shell thickness of 176 eggs was 4.3 percent below pre-1945 thickness. Shell thickness was weakly correlated with residues of DDT, DDE, Dieldrin, and heptachlor epoxide. Residues of these four pesticides were all correlated with each other. However, because of the stronger correlations between shell thickness and two …


Emergency Feed Grain Storage For New England, William J. Hanekamp, Stanley K. Seaver Mar 1980

Emergency Feed Grain Storage For New England, William J. Hanekamp, Stanley K. Seaver

Storrs Agricultural Experiment Station

No abstract provided.


Wrcc-42 "Evaluation Of Methods To Control Rodent Damage To Hay, Range And Grain Crops" Jan 1980

Wrcc-42 "Evaluation Of Methods To Control Rodent Damage To Hay, Range And Grain Crops"

Western Region Coordinating Committee for Vertebrate Pests of Agriculture, Forestry, and Public Lands (WCC-95)

December 11

9:00 a.m. Welcome and Introduction; Ralph A. Young, Associate Director, Nevada Agr. Exp. Sta.; Paul T. Tuel1er, Administrative Advisor to WRCC-42; Committee members and visitors

9:30 Discussion of procedures for a WRCC and WRCC-42 in particular

10:00 Break

10:20 Discussion of Coordinating Committee objectives

12:00 lunch

1:30 - Presentation of research activities being conducted by

5:00 the various committee members

December 12

8:30 a.m. Continued presentation and discussion of research

10:00 Break

10:20 - General discussion of committee concerns.

12:00 Election of committee officers.

Selection of next meeting time and place.


Amputation Of Vibrissae In Show Dogs, Thomas E. Mcgill Jan 1980

Amputation Of Vibrissae In Show Dogs, Thomas E. Mcgill

Veterinary Science and Medicine Collection

Dogs of many different breeds competing in the show-ring are routinely subjected to amputation of the vibrissae, organs that are commonly and incorrectly called "whiskers." This procedure is thought to give the animal's head a cleaner look, which in turn supposedly increases its chances of winning. There are several tricks involved in "whisker trimming" since the animals can retract each vibrissae at least one-quarter inch. Furthermore, they often object strenuously to the operation.


Stress: What Is It And How Can It Be Quantified?, T. H. Friend Jan 1980

Stress: What Is It And How Can It Be Quantified?, T. H. Friend

Sentience Collection

An animal may be considered to be in a state of stress if abnormal behavior or extreme adjustments in its behavior or physiology are necessary in order to cope with adverse aspects of its environment. Methods used to determine if an animal is stressed can be either behavioral or physiological. Behavioral methods may be highly erroneous due to their subjective nature since alterations in behavior do not necessarily prove that an animal is stressed. There is no single measure of stress that can be used in all situations at this time. Every measure must be critically evaluated to ensure that …


Arapaho Prairie, Arthur County, Nebraska: Approximate Ap Grid For Gis, Kathleen H. Keeler, A. T. Harrison, L. S. Vescio Jan 1980

Arapaho Prairie, Arthur County, Nebraska: Approximate Ap Grid For Gis, Kathleen H. Keeler, A. T. Harrison, L. S. Vescio

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Grid map of field sites at Arapaho Prairie in Arthur County, Nebraska. Scale 1 5/16" = 1/4 mile. Shows permanently marked vegetation quadrats, blowouts and ravine washouts, roads, and 100' contour intervals. Part of the map was destroyed by mice. What remains of the map as of 2013 is shown.


Rate Of Depletion Of Liver Vitamin A In Chicks, Weanling Rabbits And Weanling Rats Fed Vitamin A-Free Diets, J.J. Tlustohowicz, R.C. Hall, J.E. Rousseau, H.I. Frier, S. Donoghue Nov 1979

Rate Of Depletion Of Liver Vitamin A In Chicks, Weanling Rabbits And Weanling Rats Fed Vitamin A-Free Diets, J.J. Tlustohowicz, R.C. Hall, J.E. Rousseau, H.I. Frier, S. Donoghue

Storrs Agricultural Experiment Station

No abstract provided.


Subject And Author Index For Bulletins Of The Storrs Agricultural Experiment Station, Mohini Mundkur May 1979

Subject And Author Index For Bulletins Of The Storrs Agricultural Experiment Station, Mohini Mundkur

Storrs Agricultural Experiment Station

Storrs Agricultural Experiment Station Bulletin #453, 68 pages.


Lupinosis : A Disease Still With Us, Jeremy G. Allen, P. Mcr. Wood, K. P. Crocker, J. Hamblin Jan 1979

Lupinosis : A Disease Still With Us, Jeremy G. Allen, P. Mcr. Wood, K. P. Crocker, J. Hamblin

Journal of the Department of Agriculture, Western Australia, Series 4

Current research on lupinosis continues to reveal what a complex problem it is, but the improved understanding should help to reduce losses.


Testing Bulls For Breeding Soundness, R L. Peet Jan 1979

Testing Bulls For Breeding Soundness, R L. Peet

Journal of the Department of Agriculture, Western Australia, Series 4

New tests are available to ensure that bulls are fertile.


Saving The State From Rabbits, Department Of Agriculture, Western Australia Jan 1979

Saving The State From Rabbits, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

A thoughtful look at the rise and fall of rabbit populations in Western Astralia and the work done to achive the current levels.


The Social Behavior Of Brown Bears At Mcneil River, Alaska, Allan L. Egbert May 1978

The Social Behavior Of Brown Bears At Mcneil River, Alaska, Allan L. Egbert

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The social behavior of brown bears (Ursus arctos) was studied during the summers of 1972 and 1973 as bears fished for salmon at McNeil River, Alaska. Study objectives were to determine behavioral characteristics of bears in relation to sex and age, changes in social behavior over a 40-day long fishing season, social and environmental parameters correlated with the occurrence of behavior, and to test the hypothesis that brown bears modify social behavior in a feeding aggregation to exploit a resource limited in time and space.

Over one-half of the agonistic interactions consisted of passive deferrals. Encounters that included …


Pigs May Need More Protein, N W. Godfrey Jan 1978

Pigs May Need More Protein, N W. Godfrey

Journal of the Department of Agriculture, Western Australia, Series 4

Results of trials indicate that meatmeal based rations of 18 to 20 per cent protein may improve carcase quality and give better returns.


Controlling Annual Ryegrass Toxicity, C H. Trotman Jan 1978

Controlling Annual Ryegrass Toxicity, C H. Trotman

Journal of the Department of Agriculture, Western Australia, Series 4

Eight years of intensive work has changed annual ryegrass toxicity from an unknown killer to a manageable problem.


Recent Developments In Feed Transportation To New England, Stanley K. Seaver, William J. Hanekamp Dec 1977

Recent Developments In Feed Transportation To New England, Stanley K. Seaver, William J. Hanekamp

Storrs Agricultural Experiment Station

No abstract provided.


Distribution And Behavior Study Of Diurnal Tree Squirrels In Portland, Oregon, With Emphasis On The Western Gray Squirrel (Sciurus Griseus Griseus Ord) And The Western Fox Squirrel (S. Niger Rufiventer E. Geoffroy St.-Hilaire), Ira Young Rice Iii Aug 1977

Distribution And Behavior Study Of Diurnal Tree Squirrels In Portland, Oregon, With Emphasis On The Western Gray Squirrel (Sciurus Griseus Griseus Ord) And The Western Fox Squirrel (S. Niger Rufiventer E. Geoffroy St.-Hilaire), Ira Young Rice Iii

Dissertations and Theses

Populations of diurnal tree squirrels in the Portland area were located by mail surveys, personal interviews, and field inspections. Pine squirrels were found to reside in thickly wooded residential areas with dense understories and running water nearby. Western gray squirrels occupied habitats in relatively quiet residential neighborhoods, in areas well supplied with mast crops. Western fox squirrels were found to coexist with gray squirrels in their preferred habitat, and also to thrive in park settings with few mast trees and high activity and noise levels. In areas occupied by both fox and gray squirrels, dominant-subordinate relationships were noted. Each species …


A Behavioral Study Of A Small Group Of Pikas (Ochotona Princeps) On Mt. Hood, Oregon, Nancy A. Ewen Frazier May 1977

A Behavioral Study Of A Small Group Of Pikas (Ochotona Princeps) On Mt. Hood, Oregon, Nancy A. Ewen Frazier

Dissertations and Theses

Observations or a small group of pikas, (Ochotona princeps) occupying a southwest facing roadfill on Mt. Hood, Oregon (1518 m) were made during the fall or 1976. Territorial sizes of 305.5 m2 and 121 m2 were determined based on territorial displays. These territories were compared with those observed in other studies. The mean distance to the nearest neighbor was 15.1 m. A pair relationship between two of the pikas and a dominance order are discussed. The seasonal progression of the haypiles and the reactions of the pikas to other animals are also noted.


Behavioral Temperature Regulation In The Turtle Pseudemys Scripta Elegans, Michael H. Johnston May 1977

Behavioral Temperature Regulation In The Turtle Pseudemys Scripta Elegans, Michael H. Johnston

Dissertations and Theses

A group of red-eared turtles (Pseudemys scripta elegans) was acclimated to 18-20˚C and artificial photo-period for 21 days. The animals were then individually placed in a thermal gradient and their selected temperatures were continuously recorded for 24 hours. A second group of turtles was acclimatized to 7.5-11.0˚C and natural photoperiods for 28 days, and subsequently tested in the same manner as the first group. Lastly, the turtles in the first group, after being acclimated to 3.0˚C and the previous artificial photoperiod for 14 days, were retested in the gradient.


The Intestinal Platyhelminths Of Southwestern And Central West Virginia Amphibia And Relationships Between The Degree Of Infestation And Habitat Of Amphibians And Sex Of Host, Stanley B. Mills Jan 1977

The Intestinal Platyhelminths Of Southwestern And Central West Virginia Amphibia And Relationships Between The Degree Of Infestation And Habitat Of Amphibians And Sex Of Host, Stanley B. Mills

Theses, Dissertations and Capstones

In April and May, 1977, 397 (14 species) amphibians were collected from southwestern and central West Virginia and examined for parasites. Five species of trematodes and two species of cestodes were found from 93 hosts. The total of 397 amphibians was subdivided, for convenience, into six categories of amphibians; aquatic male and female, terrestro-aquatic male and female, and terrestrial male and female. Nine of 24 (37.5%). female aquatic amphibians was the highest incidence found, while terrestro-aquatic females contained the highest mean number (6.0) worms per incidence, and parasite loads of host. Hosts, each platyhelminth specimen are given.


Social Communication In Canids: Evidence For The Evolution Of A Stereotyped Mammalian Display, Marc Bekoff Jan 1977

Social Communication In Canids: Evidence For The Evolution Of A Stereotyped Mammalian Display, Marc Bekoff

Ethology Collection

The variability in the duration and form of the canid play bow was studied in infant coyotes, wolves, wolf-dog hybrids, beagles, and adult free-ranging dogs. Both duration and form showed marked stereotypy. It appears that the role of this context-specific social signal in the communication of play intention has been fostered by selection for "morphological" stereotypy.


Economics Of Farm Water Supplies, P P. Eckersley Jan 1977

Economics Of Farm Water Supplies, P P. Eckersley

Journal of the Department of Agriculture, Western Australia, Series 4

The economics of farm water supplies can be studied in two ways. One is to compare the costs of alternative ways of supplying a specified quantity of water to a farm. Another is to calcu;ate how mucha farmer can afford or will pay for a water supply.

I propose to look at these questions from the point of vieew of an eastern wheatbelt farmer, assuming that he must pay the full costs of any water supply provided for his property.


The Oombulgurri Project Clancy Committee Report, D J. Clancy, P Mccosker, C Mayberry, A J. Millington, P Ryan Aug 1976

The Oombulgurri Project Clancy Committee Report, D J. Clancy, P Mccosker, C Mayberry, A J. Millington, P Ryan

All other publications

In early August the Oombulgurri community requested assistance in the following terms.

"On behalf of the Oombulgurri Community, we invite assistance in developing the grain and pasture cropping at Oombulgurri. We have experimented with peanuts, sorghum, and many varieties of vegetables. This has tested the reality of hopes to expand acreage and varieties to become self-sufficient in stock feed. The Farm and Garden Guild now needs the expertise of your services to plan a four-year programme. vie need assistance in choosing from the many options, opinions and advices available from Australia and elsewhere, for grain production, pastures, methods appropriate to …


Radioprotection Of Oral Cavity Structures By S-2-(3-Aminopropylamino) Ethyl Phosphorothioate (Wr-2721), Ronald King Jul 1976

Radioprotection Of Oral Cavity Structures By S-2-(3-Aminopropylamino) Ethyl Phosphorothioate (Wr-2721), Ronald King

Masters Theses & Specialist Projects

Studies reporting a high concentration of WR-2721 in mouse salivary glands led to our studies of possible radioprotection of these glands by this drug from ionizing radiation. Oral effects of radiation in the presence of WR-2721 were studied in mice and dogs. Histological evaluation of mouse salivary glands irradiated with 1000 rads of 60Co showed essentially no difference between control and experimental animals. Almost full regeneration of the serous salivary components occurred by 6 months in both groups and neither group had changes in the mucous glands. The use of higher doses of radiation in the mouse was prevented …


Heterospermic Insemination In Swine, Donald G. Levis Jan 1976

Heterospermic Insemination In Swine, Donald G. Levis

Electronic Theses and Dissertations

The studies report herein were conducted to evaluate (1) if there is a difference in pregnancy rate and litter size in swine between heterospermic and homospermic inseminations, (2) the effect of mixing various fresh cm n components involving spermatozoa in the sperm-rich fraction, seminal plasma from the centrifuged post-sperm fraction and Beltsville Ll extender on oxygen consumption, pH, motility and percent dead spermatozoa and (3) the effect of storage (54 hours) on oxygen consumption, pH, motility and percent dead spermatozoa in the various combinations. One Hampshire and one Yorkshire boar were used in the pregnancy rate and litter size study.