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Seasonal Abundance And Habitat Distribution Of Birds In Northeastern Arkansas, Earl L. Hanebrink, Alan F. Posey

Journal of the Arkansas Academy of Science

Bird sighting records from 1964 through 1978 for 17 northeastern Arkansas counties were compiled according to the seasonal status, relative abundance and habitat distribution of each species. The five seasonal occurrence categories and their relative species composition were: transient visitant (46.6%), summer resident (20.3%), winter resident (14.8%), permanent resident (17.2%) and winter visitant (1.0%). The seven seasonal abundance categories and their relative species composition were: very rare (13.9%), rare 15.9%), uncommon (30.7%), fairly common (10.5%), common (25.6%), very common (1.7%) and abundant (1.7%). Eleven habitat categories were included: campestrian, abandoned fields, forest edge, lowland woods, upland woods, riparian woods, marshes, …

Time Course Of Pr Of Uv-Induced Chromosomal Aberrations And Lethal Damage In S And G2 Xenopus Cells, Jan Payne, H. Gaston Griggs

Journal of the Arkansas Academy of Science

Sand G2 phase cells were exposed to 150 ergs mm⁻² UV and their ability to photoreactivate the induced cell killing (loss of colony forming ability) and chromosomal aberrations was determined as a function of time following the UV exposure. In S phase cells, the lesions leading to cell death and those leading to aberrations were both converted to a non-photoreactivable state shortly after the UV exposure. A significant fraction of the lesions induced in G2 cells, that led to cell death, were converted to a non-photoreactivable state before the progeny of the exposed cells reached the next succeeding S phase. …

Abundance, Diversity And Distribution Of Benthic Macro-Invertebrates In The Flat Bayou Drainage Area, Jefferson County, Arkansas, John D. Rickett

Journal of the Arkansas Academy of Science

The main ditch of Flat Bayou Drainage in north central Jefferson County carries water southward into Plum Bayou which then shortly empties into the Arkansas River. Flat Bayou proper flows northward into Wabbaseka Bayou which in turn flows into the Arkansas River in northeastern Lincoln County. Two sites on the main ditch were sampled for physico-chemical parameters and benthic macroin vertebrates on 9 September, 7 October and 11 November 1978. No visible detrimental effects were attributed to physico-chemical characteristics. Thirty-one below-family taxa and 19 families were found in abundance from zero at one site and date to 3580 per m² …

Effect Of Turf Fungicides On Earthworms, J. H. Roark, J. L. Dale

Journal of the Arkansas Academy of Science

Numerous turf fungicides were tested under various conditions for possible deleterious effects upon the earthworm Eisenla foetida. Earthworms treated by immersion for one minute in 0.1% solutions of 10 different fungicides died insignificant numbers after benomyl and thiophanate methyl treatments. After 1% fungicide treatments, there was significant mortality from benomyl, ethazole, Kromad, and thiophanate methyl fungicides. With 2% fungicide solutions, significant numbers died after benomyl, cadmium succinate, ethazole, thiophanate methyl, and thiram treatments. Earthworms fed bermudagrass clippings treated with 10 different fungicides showed a significant decrease in longevity from clippings treated with benomyl, dinocap, ethazole, and thiophanate methyl. Earthworms reared …

Notes On The Distribution Of The Ornate Box Turtle (Terrapene Ornata Ornata) In Arkansas, Lawana England

Journal of the Arkansas Academy of Science

No abstract provided.

Trichomes Of Some Members Of The Loasaceae: A Scanning Electron Microscope Study, Rachel Gross, Clarence B. Sinclair

Journal of the Arkansas Academy of Science

No abstract provided.

Status Of The Endangered Bats, Myotis Sodalis, M. Grisescens, And Plecotus Townsendii Ingens, In Arkansas, Michael J. Harvey, John J. Cassidy, Gary G. O'Hagan

Journal of the Arkansas Academy of Science

No abstract provided.

Note On The Food Habits Of Selected Raptors From Northeastern Arkansas, Earl L. Hanebrink, Alan F. Posey, Keith B. Sutton

Journal of the Arkansas Academy of Science

No abstract provided.

Lichens Of Arkansas I: A Summary Of Current Information, Jewel E. Moore

Journal of the Arkansas Academy of Science

No abstract provided.

Cave Fauna Of Arkansas: Additional Invertebrate And Vertebrate Records, V. Rick Mcdaniel, Kenneth N. Paige, C. Renn Tumlison

Journal of the Arkansas Academy of Science

No abstract provided.

Unusual Results From Pellet Analysis Of The American Barn Owl, Tyto Alba Pratincola (Bonaparte), Kenneth N. Paige, Chris T. Mcallister, C. Renn Tumlison

Journal of the Arkansas Academy of Science

No abstract provided.

Unusual Concentration Of Scarlet Snakes, Keith B. Sutton, V. Rick Mcdaniel

Journal of the Arkansas Academy of Science

No abstract provided.

Comparison Of Carbon And Nitrogen Content Of Infected And Uninfected Snails, Succinea Ovalis, And The Trematode Leucochloridium Variae, Albert J. Burky, Daniel J. Hornbach

Biology Faculty Publications

In June, 6.7% of adult Succinea ovalis collected near Urbana, Ohio, were infected with the trematode, Leucochloridium variae. The effects of parasitism were assessed as total organic carbon (equivalent to calorific values) and as total nitrogen. The parasite represents 23.8% of total (parasite + snail tissue) dry tissue weight, 21.4% of total carbon and 19.8% of total nitrogen of infected snails. The higher C:N ratio for parasite tissue indicates a higher proportion of nonproteinaceous compounds (e.g., fats and/or carbohydrates) as compared to host tissue. There is less snail tissue in parasitized S. ovalis. The C:N ratios for parasitized and nonparasitized …

Control Of Partitioning And Export Of Carbon In Leaves Of Higher-Plants, Donald R. Geiger

Biology Faculty Publications

Within source leaves, partition of assimilated carbon and export are regulated to both leaf and plant ontogeny and to environmental conditions. System goals, adaptive responses, control mechanisms, and information flow are developed from the viewpoint that a well-adapted plant is an integrated system. Regulation of partitioning and export involves both feedforward control and feedback homeostasis. Export is controlled by regulation of metabolism which supplies assimilated material to be translocated, by control of efflux into the free space of material destined for export, and by regulation of phloem loading. Control of export by the latter two processes depends on responsive metabolic …

Flystrike In Sheep : Secondary And Tertiary Flies Striking Sheep In Western Australia, N Monzu

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

Unlike primary species of blowflies, the secondary and tertiary species of flies cannot initiate a strike, but their activity in the presence of the primary blowflies becomes significant in the death of struck sheep. This is particularily so when the hairy maggot blowfly is involved. Future management of sheep flocks to minimise deaths may require recognition of these secondary and tirtiary flies.

This article presents some basic facts about these flies.

Learning To Live With Spotted Alfalfa Aphid, M Grimm

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

The spotted alfalfa aphid which can devastate lucerne crops and perhaps also medic pastures, has been established in Western Australia since early 1978. However several methods of control are being developed, which could allow continued production of lucerne.

Pulling The Wool Off, Department Of Agriculture, Western Australia

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

The Department of Agriculture has begun a three year project to study the potential for "chemical shearing" or, more correctly, biological defleecing.

Age And Growth Of White Crappie, Pomoxis Annularis Refinesque, From A Flood-Created Pond In Mississippi County, Arkansas, Stephen A. Sewell

Journal of the Arkansas Academy of Science

No abstract provided.

Shore-Level Size Gradients In Tegula Funebralis (A. Adams) : Seasonal Changes Influenced By Interaction Of Predator Preference And Prey Behavior, Daniel Victor Markowitz

University of the Pacific Theses and Dissertations

Aspects of the Pisaster-Tegula interaction are re-examined. Reproductive portions of T. funebrallis populations are shown to be immune to seastar predation through a combination of predator preference for larger snails and a withdrawal behavior that favors the escape of smaller snails after capture by a seastar . Experimental addition of p. ochraaceus in winter causes changes in the intertidal distribution of T. funebralis similar to those observed during the summer increase in seastar numbers. It is suggested that these results supplant the hypothesis that lowered prereproductive mortality influences formation and maintenance of vertical size gradients in the lower intertidal .

Specimen Catalog & Field Notes, Elizabeth Boyd

Division of Mammals - Field Notes and Catalogs

No abstract provided.

Water Usage And Power Production: The Electric Utility Industry Is Dependent On Water Utilization, T. P. Harding, L. G. Harrow

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The utilization of water as a heat transfer fluid is essential for the production of economic electrical power. There are many types of cooling facilities; however, the most economical means of electrical power production requires very large quantities of water to serve as a low temperature heat sink. For this reason, the power industry has, when possible, located its facilities near large sources of cold water, such as the Missouri River. The Omaha Public Power District (OPPD) has utilized the Missouri River since the turn of the century, and continues to do so today.

The availability of water in the …

Postulated Late Prehistoric Human Population Movements In The Central Plains: A Critical Review, John Ludwickson

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Hypotheses which concern human "migration" within and without the Central Subarea of the Great Plains during the Late Prehistoric period are examined. The popular notion that peoples from central Nebraska migrated to the Panhandle region of Texas-Oklahoma is shown to be suspect if not false. The idea that peoples inhabiting the Missouri River trench in Nebraska were slowly migrating northwesterly finds support. Finally, evidence concerning postulated migrations of ancestral Pawnee and Arikara into the Missouri trench in South Dakota is reviewed, with two hypotheses emerging.

Trace Metals In Wyoming Coal: Their Analysis, Concentrations, And Interrelationships, A. W. Struempler, J. M. Jolley

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The Teflon bomb and the flameless atomic absorption spectrophotometer (AAS) were used to analyze trace metals in Wyoming coal The results were compared to a National Bureau of Standard (NBS) reference coal sample. The combined use of the Teflon bomb and flameless AAS appears to be a sensitive, accurate, and practical method for analyzing trace metals in coal. Most metallic concentrations in Wyoming coal samples do not appear to exceed the collected U.S. coal samples.

On The Causal Irreducibility Of Natural Function Statements, Eric Russert Kraemer

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

One topic of interest to a number of philosophers of science is whether functional explanation can be reduced to some other kind of explanation, such as causal explanation. Some philosophers have tried to reduce talk of natural functions to talk of causes. I here examine some such attempts and try to provide, in addition to the traditional counter-examples, an argument as to why such reductions should fail. Certain parallels are drawn between attributions of natural functions to parts of organisms and attributions of propositional attitudes to persons.

The Realizing Character Of The Social Sciences, Andrew Larkin

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Because of successful construction of theories in the mathematical, physical, and biological sciences, and because of their unchallenged technological usefulness, the philosophy of science has concentrated on the formal and epistemological aspects of sciences. However, the less formal social sciences have had a greater impact on society. This realizing character of the sciences, i.e., their influence on society through policy (in the case of the social sciences), has been inadequately studied. In this paper the normative character of the social sciences is seen from the perspective of realization. Norms as internal and external criteria, which are entailed by realization, are …

Transactions Of The Nebraska Academy Of Sciences Volume Vii (1979): Table Of Contents

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Nebraska Academy of Sciences, Officers, Policy Committee ......... ii

Editorial Board, Instructions to Contributors ......... vi

Symposium "Water Usage: Who Cares?"

Water usage-who cares?: a planner's viewpoint (G. J. Karabatsos) ......... 1

Water usage-who cares?: an environmental viewpoint (H. G. Nagel) ......... 5

Water usage-who cares?: an historical perspective (D. T. Pederson) ......... 9

Instream flow needs for water quality management (R. D. Todd) ......... 11

Water usage and power production: the electric utility industry is dependent on water utilization (T. P. Harding and L. G. Harrow) ......... 15

Other Water-Related Subjects

Hydrogeologic relationships to structural failure, Chadron State College, …

A Botanical Survey Of Cuming County: Part Ii, The Bryophytes: With Additions To Part I, The Vascular Plants, Steven P. Churchill

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Continued studies of the flora of Cuming County, Nebraska, reveal the presence of 36 species of bryophytes representing 27 genera and 17 families. The list of known vascular plants is increased by 15, and a summary of the county's flora is presented.

A Preliminary Study Of Seed Predators Of Platte Thistle In The Nebraska Sandhills, William O. Lamp, M. K. Mccarty

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The biology and infestation patterns of three seed-feeding insects were investigated in Platte thistle populations (Cirsium canescens Nutt.). The insects have been identified as Paracantha culta (Wiedemann), Orellia occidentalis (Snow), and Homoeosoma stypticellum (Grote). Factors determining infestation patterns were studied by collecting 75 post-bloom heads from three Sandhills sites on June 16, 1977. Mean number of insects per head was 0.55 for P. culta, 4.3 for O. occidentalis, and 3.3 for H. stypticellum. Insects were present in 97 percent of the heads. Competition between species was reduced by differences in time of active growth of the …

A List Of The Mosses Of Buffalo And Kearney Counties, Nebraska Held In The Kearney State College Herbarium, Marvin C. Williams, Linda L. Spessard

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

A check list of the mosses of Buffalo and Kearney counties is presented. Most records are new for the counties and two new state records are listed.

Humanities In Medical Education- The Past Ten Years, James J. Quinn

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

What has always fascinated me is an historical account that ends triumphantly but whose start-to-finish is riddled with reversals and hostile obstacles and haunted by anguishing circumstances. The history of "humanities in medical education- the past ten years" in the United States is just such a story. In the last ten years there has been a continually wider acceptance of humanities in United States medical schools, i.e., a growing number of schools introducing the humanities, a growth in the quality and scope of programs being offered, and a greater acceptance of the humanities as an integral part of the medical …