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Birdman: [Dr. Peter Marler], Fulvio Bardossi, Judith N. Schwartz

Rockefeller University Research Profiles

Rockefeller University Research Profiles are a series of scientific profiles that were published quarterly, from 1980-1990, by the Rockefeller University. Each issue features the research and achievements of an individual Rockefeller University scientist.

A Post-Impoundment Investigation Of The Beech Fork Drainage Basin, Twelvepole Creek, Wayne And Cabell Counties, West Virginia, Donald Borda

Theses, Dissertations and Capstones

Fish populations were collected at six stations by means of electrofishing to determine the composition after impoundment. A total of 748 fishes weighing about 9 pounds (4 kg) were collected. Seven families representing 31 species were collected and categorized as game, forage and rough fishes. Game fishes made up 9.1 percent of the total number and 22.3 percent of the total weight; forage fishes 83.0 percent by number and 29.7 percent by weight. The average standing crop was 15 pounds per acre.

Benthic invertebrates were collected at six stations by means of a bottom dredge. A total of 1535 specimens …

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.

Observations Of Diatom Populations In The Snake River, Minnesota, Donald G. Kaddatz, Keith M. Knutson

Journal of the Minnesota Academy of Science

No abstract provided.

Age Study Of Minnesota Red Fox Using Cementum Annulae Counts And Tooth X-Rays, Dennis E. Simon, Merrill J. Frydendall

Journal of the Minnesota Academy of Science

A prerequisite to the proper management of an animal species is understanding of its population dynamics. Attempting this, the age structure of 297 red fox trapped or shot in southern Minnesota was investigated, using the techniques of tooth sectioning and x-ray. Results from two seasons (1977 and 1978) were similar, with 76.8 percent of the harvested population being juveniles (78.4 percent, 1977 and 74.6 percent, 1978), whereas only 0 .6 percent of the total were in the 4½ year old class. The percentage of juveniles corresponds closely to the numbers predicted by a Department of Natural Resources model developed by …

Proceedings From The 17th Annual Marschall Invitational Italian Cheese Seminar 1980, Various Authors

Cheese Industry Conference

No abstract provided.

New Species Of North American Bees Of The Genus Dufourea (Hymenoptera, Halictidae) With Descriptions Of Two Previously Undescribed Females, George E. Bohart

All PIRU Publications

Thirteen new species of halictid bees in the genus Dufourea are described. Also described are females of two species known previously only from males. All are from the Western United States and northern Mexico.

Isolation And Identification Of Obligately Anaerobic Bacteria From Bovine Lung Abscesses, Steven Daniel

Faculty Research & Creative Activity

For many years, the role of anaerobic bacteria in human diseasewas considered important only in such clostridial diseases as gas gangrene,botulism and tetanus. In the last 10 years, however, the developmentof new methods to isolate and identify anaerobic bacteria has establishedthe pathogenic role of non-sporeforming anaerobic bacteria in awide variety of clinical infections in humans. Bacteroides fragilis isnow known to account for approximately one-fourth of all anaerobicbacteria isolated from human clinical specimens.

Oxidative Metabolism Of 4-Aminobutyrate By Rat Brain Mitochondria: Inhibition By Branched-Chain Fatty Acid / J. Cunningham, D. D. Clarke, And W.J. Nicklas, J. Cunningham, Donald Dudley Clarke Phd, William J. Nicklas

Chemistry Faculty Publications

The oxidation of 4-aminobutyric acid (GABA) by nonsynaptosomal mitochondria isolated from rat forebrain and the inhibition of this metabolism by the branched-chain fatty acids 2-methyl-2-ethyl caproate (MEC) and 2,2- dimethyl valerate (DMV) were studied. The rate of GABA oxidation, as measured by 02 uptake, was determined in medium containing either 5 or 100 mM-[K+]. The apparent Km for GABA was 1.16 ± 0.19 mM and the Vmax in state 3 was 23.8 + 5.5 ng-atoms O2 ·min-1.mg protein-1 in 5 mM-[K+]. In a medium with 100 mM-[K+] the apparent K111 was 1.11 + 0.17 mM and V max was 47.4 …

Ec17-11-80 Nebraska Outdoor Education Series: Plant A Tree, Joe Range, John D. Orr

University of Nebraska-Lincoln Extension: Historical Materials

Not all trees or shrubs can find a home in your yard or apartment. Help your child to discover a home for the tree or shrub he or she grows or receives. The greatest benefit of this Plant-A-Tree project is being close to a living plant. This project will: introduce five tree planters - one from each area of Nebraska, discuss the parts of tree seeds, give examples of how tree seeds travel, discuss preparation of soil, demonstrate how to grow a seedling tree from seed, demonstrate how to transplant a tree, and offer suggestions for activities and exhibits.

G80-493 Developing Replacement Beef Heifers (Weaning-Breeding), Gene H. Deutscher

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the proper selection, nutrition, breeding, and management of replacement beef heifers from weaning to breeding. Proper selection and development of replacement heifers is one of the most important management programs in beef production. Replacement heifers should be selected and managed so they will conceive and calve early in the calving season, provide adequate milk production, and rebreed and calve every 365 days. Heifers bred as yearlings to calve as two-year-olds will produce an extra calf in their lifetime compared to heifers calving as three-year-olds, without detrimental effects on mature size, milk production, or calf weaning weights. The …

Liverpool University Expedition To Jamaica, Donald A. Mcfarlane

WM Keck Science Faculty Papers

During summer 1977, five members of the Liverpool University Potholing Club spent six weeks working and exploring in the caves of Jamaica. The team consisted of Don McFarlane, John Dye, Malcolm Macduff, Mike Roger and Barry Williams, all of whom contributed to this report. The expedition base was at Troy, where the villagers are owed a debt of gratitude for their hospitality. This placed the expedition in the heart of the cave region, and a number of new caves and shafts were discovered and explored. The main discovery was the Still Waters Cave, located near Accompong, where 11,800 feet of …

Report No 40 - Commercially Exploited Vacsular Plants Native In Western Australia: Census, Atlas And Preliminary Assessment Of Conservation Status, Barbara L. Rye, S. D. Hopper, L. E. Watson

Fisheries Research Reports

A census and atlas is provided of 1 119 native Western Australian plant species which were commercially exploited during 1977-79 in the cut plant, nursery or seed trades. The exploited species are concentrated in the vicinities of Perth and Albany, the two matin centres for the wildflower industry. Preliminary assessments of the conservation status of the exploited species are provided. Approximately r200 species are regarded as being rare, geographically or poorly collected, and further studies are recommended for these species to determine whether they are in danger of overexploitation.

Adaptative Alteration In Phospholipid Composition Of Plasma Membranes From A Somatic Cell Mutant Defective In The Regulation Of Cholesterol Biosynthesis, Michael Sinensky

Faculty Publications, Biological Sciences

A somatic cell mutant (CR1) of a Chinese hamster ovary cell (CHO-K1) which has previously been shown to be defective in the regulation of cholesterol biosynthesis accumulates more cholesterol than the parental cell line in plasma membranes. Although such an increase in membrane cholesterol should lead to an increase in the order parameter of these membranes, as measured with an electron spin resonance spin probe, the order parameters of mutant and wild-type plasma membranes are identical--apparently because of an adaptive alteration in membrane phospholipid composition. The phospholipid compositions of mutant and wild-type cell plasma membranes are compared and the mutant …

Anti-Neoplastic Actions In Vivo And In Vitro By Non-Toxic Natural Products From Chara Globularis, A Multicellular Green Alga, Abdessalam Sherif

Theses Digitization Project

No abstract provided.

Environmental Factors Affecting The Diversity Of Reptiles In The Deep Canyon Transect Of The Colorado Desert, California, James W Cornett

Theses Digitization Project

No abstract provided.

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director’s Comments [p] 2
Direct Beef Marketing [p] 3
Selenium: Villain or Hero? [p] 7
Excellence that Won’t Quit [p] 11
Flax: A Crop to Watch [p] 13
Insect Watchers [p] 16

Distribution Of Naegleria Fowleri In Selected Northeast Arkansas Lakes, Robert Dean Evans, Lawrence W. Hinck

Journal of the Arkansas Academy of Science

Seven northeast Arkansas recreational lakes were examined for the presence of pathogenic and nonpathogenic Naegleria fowleri. Cultural differentiation and microscopic morphology were used as species determining tests, while mouse pathogenicity tests were conducted to determine virulence. Only one isolate met all criteria utilized for definite identification of Naegleria fowleri, although Naegleria type organisms were found in all of the lakes. None of the isolates were pathogenic in mice.

G80-509 Canada Thistle, Robert G. Wilson

University of Nebraska-Lincoln Extension: Historical Materials

The growth and control of Canada thistle is covered here.

Canada thistle plant

Canada thistle [Cirsium arvense (L) Scop.] is a native of Eurasia and was probably introduced to America around 1750. Since that time it has spread throughout the northern part of the United States. Canada thistle is estimated to infest 800,000 acres in northern and western Nebraska.

A perennial that reproduces from seed and by an extensive root system, Canada thistle is dioecious, with the male and female flowers on separate plants. For viable seed to be produced, both male and female plants need to be present.

Fisheries Report No 39 - The Wildlife Of The Proposed Toolonga Nature Reserve, Shark Bay Shire, Western Australia, A. A. Burbidge, P. J. Fuller, K. Cashin

Fisheries Research Reports

Following a Cabinet endorsed recommendation by the Environmental Protection Authority in 1975, an area of vacant Crown Zand (the Toolonga Area) was examined during April and September, 1978.

The geology, soils and vegetation of the area are described and annotated lists of mammals, birds, amphibians and reptiles are presented. A small part of the area lies in the South West Botanical Province (Irwin District) but most is in the Eremaean Botanical Province (Carnarvon District). The vertebrate fauna is a mixture of south-western, Shark Bay and arid zone species, but the last predominate.

The Toolonga Area provides an opportunity to protect …

Laboratory Animals And Alternatives In The 80'S, Andrew N. Rowan

Laboratory Experiments Collection

No abstract provided.

Nsmr: Its Image, Direction And Future, J. Russell Lindsey

Experimentation Collection

The point I wish to emphasize is that NSMR, like all of its predecessors representing the scientific community, has consistently maintained a defensive posture while claiming that a// practices of animal use and care within the biomedical community have been "lily white." In my judgment, this has been a major tactical error because abuses of freedoms to use animals in research too frequently have been and continue to be common knowledge (e.g., Science, Editorial, 1976). NSMR's complete unwillingness to face up to these realities and torespond positively to the public's legitimate concerns has led to the inevitable loss of credibility …

Bringing Nature Into The Zoo: Inexpensive Solutions For Zoo Environments, David Hancocks

Zoos and Aquariums Collection

Animals in captivity have traditionally been kept in sterile and inappropriate environments. Typically this situation still prevails in zoos. Cages are designed only for restraint of the animals, expediency for the public, and convenient maintenance by keepers. The animals' behavioral needs are often ignored. By using nature as a norm, and by using natural materials, the spatial and temporal environment of a captive animal can be easily and greatly enriched. Several examples which have been used at Woodland Park Zoological Gardens are discussed. Their application and expansion are appropriate for most urban zoos.

Pain-Infliction In Animal Research, Dorothy Tennov

Experimentation Collection

A summary of research outlining the main sources of pain and stress to animals in laboratories provides the background for the results of a survey conducted by the author on how students feel about experimentation involving animals. The psychological aspects of student reaction to animal experimentation are examined. The conclusion outlines specific recommendations on ways to minimize pain and discomfort of laboratory animals.

Animals In Education: The Use Of Animals In High School Biology Classes And Science Fairs, Heather Mcgiffin, Nancie Brownley

ANIMALS IN EDUCATION is the proceedings of the conference, "The Use of Animals in High School Biology Classes and Science Fairs," held September 27-28, 1979 in Washington, D.C. which was sponsored by The Institute for the Study of Animal Problems, 2100 L Street, N.W., Washington, D.C. in connection with The Myrin Institute for Adult Education, 521 Park Avenue, New York, N.Y. 10021.

Recent Mollusca Of Arkansas With Annotations To Systematics And Zoogeography, Mark E. Gordon

Journal of the Arkansas Academy of Science

A total of 223 taxa of Mollusca are presently known from Arkansas. The geological history and geomorphology of the region, particularly the presence of the Interior Highlands, have been responsible for the development of a diverse molluscan fauna. Thirty regionally endemic forms are included among the 107 terrestrial gastropods, 36 aquatic gastropods, 65 unionacean mussels, and 15 sphaeriacean clams.

Infection Of Engelmann-Spruce Seed By Geniculodendron Pyriforme In Western North America, M W. Wicklow-Howard

T.W. "Doc" Daniel Experimental Forest

Geniculodendron pyriforme Salt was identified and characterized by Salt (1974) as the fungus responsible for germination failure of Sitka spruce [Picea sitchensis (Bong.) Carr.] seed in Canadian and British forest nurseries. It was confirmed that the fungus isolated by Epners (1964) from seed of Pinus resinosa Ait., P. sylvestris L., P. strobus L., and Picea glauca (Moench.) Voss. in Canadian nurseries was the same (Salt, 1974). In addition, Salt (1970) demonstrated that the pathogen can infect seeds of western hemlock [Tsuga heterophylla (Raf.) Sarg.], lodgepole pine (Pinus contorta Doug!. ex Loud.), Japanese larch [Larix leptolepis (Sieb. and Zucc.) Gord.] and …

Nongame Birds Of The Rocky Mountain Spruce- Fir Forests And Their Management, Kimberly G. Smith

T.W. "Doc" Daniel Experimental Forest

Spruce-fir forests in the Rocky Mountains consist mainly of Engelmann spruce and subalpine fir. The breeding avifaunas in these forests show remarkable consistency in composition along a latitudinal gradient from Montana to Arizona and New Mexico, and with avian communities in the Hudsonian life zone in Washington, Oregon, and California. Woodpeckers, corvids, and seed-eating finches are the most common components. Only the Golden Eagle and a few other raptors are threatened or endangered. Few species winter in these high mountain forests. The distribution of many species is controlled primarily by the vegetation physiognomy, a variable under the control of the …

Further Concepts In Ecological Wood Anatomy, With Comments On Recent Work In Wood Anatomy And Evolution, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Petal Epidermal Dimorphism And Uv Absorption In Anthochlor-Pigmented Flowers, Ron Scogin, Patricia Rogers

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.