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Transactions Of The Nebraska Academy Of Sciences Table Of Contents: Volume 24 (1997)

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Editorial Contents

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

Editorial Board ................. iv

Membership Objectives and Friends of the Academy ................. v

Nebraska Association of Teachers of Science ................. vi

Preparation of manuscripts ................. inside back cover

Papers

Creativity in science: historical illustrations and the academic paradigm (Kaddie J. Bicak) ................. 1

Keys and distributional maps for Nebraska Cyperaceae, Part 2: Carex and Scleria (Steven B. Rolfsmeier and Barbara Wilson) ................. 5

Vegetation dynamics at the Gerald Gentleman Station mitigation site, Lincoln County, Nebraska (Michael P. Gutzmer) ................. 27

The unionid mollusks of the Upper Kansas Basin of …

Law And Biology: Toward An Integrated Model Of Human Behavior, Owen D. Jones

Vanderbilt Law School Faculty Publications

As first year law students unhappily discover, the meaning of "law" is frustratingly protean, shifting by usage and user. Depending on whom you ask, law is a system of rules, a body of precedents, a legislative enactment, a collection of norms, a process by which social goals are pursued, or some dynamic mixture of these. Law's principal purpose is to define and protect individual rights, to ensure public order, to resolve disputes, to redistribute wealth, to dispense justice, to prevent or compensate for injury, to optimize economic efficiency, or perhaps to do something else. And yet one thing is irreducibly …

Biosystematics Of The Cotesia Flavipes Species Complex (Hymenoptera: Braconidae): Morphometrics Of Selected Allopatric Populations, Susan W. Kimani-Njogu, William A. Overholt, James Woolley, Annette Walker

All Peer-Reviewed Publications

Morphometric studies of allopatric populations of the Cotesia fiavipes species complex representing three putative species; C. flavipes Cameron, C. sesamiae (Cameron) and C. chilonis (Matsumura), were conducted. Sixteen characters were measured. Principal component analysis separated the complex into three somewhat overlapping groups that corresponded well with previous concepts of the species. Canonical variate analysis separated the complex into three distinct clusters with populations from Africa together, populations from Asia and the Neotropics forming a second cluster, and material from China and Japan forming a third cluster. The Mahalanobis squared distances between the three clusters were nearly equal. Results support recognition …

Geographic Variation In Host Selection Behaviour And Reproductive Success In The Stemborer Parasitoid Cotesia Flavipes (Hymenoptera: Braconidae), R. P.J. Potting, L. E.M. Vet, W. A. Overholt

All Peer-Reviewed Publications

Local parasitoid populations may be adapted to their sympatric major plant host complex. Parasitoid strains may thus differ in their propensity to search for a particular micro-habitat or host or they may differ in their physiological compatibility with particular plant or host species. Cotesiaflavipes Cameron, a larval parasitoid used worldwide in biological control against tropical stemborers, has a wide host range in diverse habitats. The existence of plant and/or host specific strains in C. flavipes has been postulated. To provide insight into the existence of strains in C. flavipes, we compared the plant/host complex selection behaviour, and physiological compatibility with …

Walking Thoughts, Hunter R. Rawlings Iii

Journal of the Iowa Academy of Science: JIAS

I've borrowed my title from a poem by Marvin Bell, a member of our Writers' Workshop, because I cannot think of state parks without thinking of my love for their hiking trails and the expansion of spirit they have brought me. State parks are more than nature preserves, more than recreational areas, though these functions are very important. They are also cultural and even spiritual resources, centers of emotional and psychic renewal.

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Paleomicrobiological Study In Dental Calculus: Streptococcus Mutans, A. Linossier, M. Gajardo, J. Olavarria

Scanning Microscopy

Morphological types of bacterial remains preserved in ancient tartar of teeth from extinct human groups, which included some communities of coastal gatherers, fishermen, hunters, and farmers, and those practicing a mixed economy, were analyzed. Previous studies have shown the presence of bacteria in ancient tartar. The aim of this work was to determine whether Streptococcus mutans was present in ancient populations (500-12,000 years old). Teeth samples were from ancient skulls obtained from different anthropological collections: the north and south of Chile (before the Spanish conquest), Palencia, Spain, and an eastern Mediterranean region (Levant). Optical microscopy showed Gram positive and Gram …

Center For Grassland Studies Newsletter, Fall 1996, Volume 2, No. 4

Center for Grassland Studies: Newsletters

Contents:

Grasslands, Horses, and Tractors by Ken Vogel

Grazing Evaluation of Cool-season Grasses in the Nebraska Sandhills in Replicated Ranch Trials by Dennis Bauer, Extension Educator, UNL

Grazingland Words to Know by Bruce Anderson, Department of Agronomy, UNL and Terry Gompert, Extension Educator, UNL

Value of Wetlands

CGS Seminars Available on Video

International Grassland Congress

Advisory Council Meets In Lincoln

Golf and the Environment

EPA 1997 Science Research Grants

CGS Display Available

Quantitative Analyses Of Microwear And Honing On The Sloping Crest Of The P3 In Female Japanese Monkeys (Macaca Fuscata), Teruyuki Hojo

Scanning Microscopy

Female wild Japanese monkeys (Macaca fuscata), as with all male cercopithecoids, use the mesiobuccal surfaces or the elongated crests of the mandibular third premolars (P3s), as cutting blocks that wear against edges of maxillary canines during threat manifestation or food-eating. In other words, the crests of their P3s are honed with the maxillary canines. The crests become sloped during growth and more heavily striated with the advance of age. The number, directions, lengths, and widths of these striations have been analyzed quantitatively using scanning electron microscopy (SEM). Two samples showed two distinct types of parallel striations, one longer and thicker …

Wpa News 50 (1996), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (May 1996), number 50

Published by the World Pheasant Association

An Ecological History Of Tintic Valley, Juab County, Utah, Jeffrey A. Creque

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This work was a case study of historical ecological change in Tintic Valley, Juab County, Utah, an area historically impacted by mining and ranching activities common to much of the American West. The temporal framework for the study was approximately 120 years, the period of direct Euroamerican influence. In recognition of the ecological implications of cultural change, however, the impacts of prehistoric and protohistoric human activity on study area landscape patterns and processes were also explicitly addressed.

The study included a narrative description of historic land uses and ecological change in Tintic Valley, and examined the changes in landscape patterns …

Program Abstracts, 108th Session, Iowa Academy Of Science, April 26-27, 1996, Iowa Academy Of Science

Iowa Academy of Science Documents

Presentation abstracts from the annual meeting of the Iowa Academy of Science

The Annual Meeting Of The Iowa Academy Of Science April 26-27, 1996 [Program, 108th Meeting], Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Program Summary --- 4
General Session Speakers --- 7
Awards --- 10
Symposia Programs --- 11
Poster Session --- 13
Map --- Centerfold
Section Programs/Special Sessions --- 15
Agricultural Sciences --- 15
Anthropology --- 16
Botany --- 18
Biology: Cellular, Molecular, & Micro --- 19
Chemistry: Inorganic --- 20
Chemistry: Organic --- 21
Conservation --- 22
Engineering --- 23
Geology --- 24
Linguistics/Psychology --- 25
Physics --- 26
Physiology --- 27
Zoology --- 29
Science Teaching --- 30
Local Arrangements Committee --- 31
Annual Meeting Committee --- 31
IAS Officers & Directors --- 32
Future Meetings --- 32

Cultural Values Lower Redwood Creek, Susie Van Kirk

Susie Van Kirk Papers

Levee construction on lower Redwood Creek from near its mouth to the mouth of Prairie Creek was completed by the Corps of Engineers in 1968, resulting in significant impairment of the estuary's hydrology and its biological functions. In an effort to reestablish those functions and more particularly the fisheries of the creek, Redwood National and State Parks is developing a plan for estuary management. The following general statement about cultural values in the project area and vicinity was prepared to expand the historical information in the draft plan.

Specimen Preparation Of The Human Cerebellar Cortex For Scanning Electron Microscopy Using A T-Butyl Alcohol Freeze-Drying Device, Teruyuki Hojo

Scanning Microscopy

A freeze-drying device was applied to t-butyl alcohol substituted nerve cells, fibers and synaptic terminals. Ten percent formalin-fixed human cerebellar cortex specimens were postfixed in 2.5% glutaraldehyde in 0.1 M cacodylate buffer solution and were rinsed three times in 5% sucrose solution in the same buffer. After the postfixed specimens were dehydrated using a graded series of ethanols and then transferred into a graded series of t-butyl alcohols (freezing point 25.4°C), the t-butyl alcohol substituted specimens were freeze-dried at 15°C and at high vacuum (5x10^-2 Torr). The freeze-dried specimens were sputter coated with gold. Scanning electron …

Symposia

Journal of the Minnesota Academy of Science

Abstracts from the Symposia given at the Annual Meeting for the Journal of the Minnesota Academy of Science.

A Relationship Between River Modification And Species Richness Of Freshwater Turtles In Iowa, Terry J. Vandewalle, James L. Christiansen

Journal of the Iowa Academy of Science: JIAS

Comparisons were made of turtle populations in Red Rock Reservoir and the major rivers of the Mississippi River and Missouri River damage systems in Iowa. Of the inland rivers of the Mississippi drainage examined in this study, the Des Moines River had the least amount of remaining turtle habitat. Number of turtle species ranged from five in the Des Moines River to 11 in the Mississippi River, but only three species were found in Red Rock Reservoir. In the Missouri drainage, number of turtle species ranged from three in both the Little Sioux and Nishnabotna rivers to five in the …

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Gender Differences In Attitudes Toward Animal Research, Jennifer J. Eldridge, John P. Gluck

Experimentation Collection

Although gender differences in attitudes toward animal research have been reported in the literature for some time, exploration into the nature of these differences has received less attention. This article examines gender differences in responses to a survey of attitudes toward the use of animals in research. The survey was completed by college students and consisted of items intended to tap different issues related to the animal research debate. Results indicated that women were more likely than men to support tenets of the animal protection movement. Likewise, women were more likely than men to favor increased restrictions on animal use …

Taking Evolution Seriously: A Matter Of Primate Intelligence, Maxine Sheets-Johnstone

Intelligence Collection

No abstract provided.

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Pathogenicity Of Septoria Aquilina Isolated From Black Hills Bracken, A. Gabel, C. Salazar

Journal of the Iowa Academy of Science: JIAS

Septoria aquilina, a pathogenic fungus isolated from Pteridium aquilinum growing in the Black Hills was studied from 1991-1995. S. aquilina sprayed at 8,000 conidia/ml on transplanted fronds followed by high humidity caused severe necrosis seven days after inoculation and disease severity increased until fronds died. Severe necrosis also developed from inoculations at 4,000 and 2,000 conidia/ml. Less severe symptoms developed from inoculations at 1,000 conidia/ml. Inoculations at 4,000 conidia/ml not followed by high humidity caused less necrosis than inoculations at the same concentration with high humidity. Inoculations at 4,000, 2,000, and 1,000 conidia/ml on fronds grown from spores caused similar …

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Iowa Academy Of Science Membership Directory, 1996-97, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Editorial Board, Journal ... 5
Committees ... 6
Sections ... 18
ISTS Regional Directors ... 22
Awards of Merit ... 24
Excellence in Science Teaching Awards ... 25
Past Presidents ... 26
Membership Roster ... 27

Fall 1996, Nsu Oceanographic Center

Currents

No abstract provided.

A Potential Understory Flora For Oak Savanna In Iowa, Karl T. Delong, Craig Hooper

Journal of the Iowa Academy of Science: JIAS

Oak savanna occurred in Iowa until the time of settlement and then was degraded rapidly. There were no scientific studies of savanna prior to, or after, settlement, and now no high-quality examples exist within the state. To identify those vascular plants adapted to live in the understory of savanna we examined regional and local flora for species that occurred in both prairie and broken woodland, and for species that occurred m both openings and forest. We then compiled a detailed description of the ecological range of habitats for each of these species. We identified 252 species (39 graminoids, 183 forbs, …

Current Status Of The Plains Pocket Mouse, Perognathus Flavescens, In Iowa, Gregory M. Wilson, John B. Bowles, Justin W. Van Zee

Journal of the Iowa Academy of Science: JIAS

Published and unpublished accounts of the plains pocket mouse (Perognathus flavescens) were utilized to document the existence of extant populations and to summarize and report additional data about the biology of this state endangered Iowa species. Populations of P. flavescens exist in western (Harrison, Monona, and Plymouth counties) and extreme eastern (adjacent portions of Louisa and Muscatine counties) Iowa, the latter of which represents the eastern-most record for the species in North America. In addition, we document a new locality for P. flavescens from the interior of the state (Benton County). All known populations of P. flavescens in Iowa occur …