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Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Statement Of The Position Of The Iowa Academy Of Science On The Validity Of Evolutionary Science And On The Status Of Creationism As A Scientific Explanation Of Natural Phenomena

Journal of the Iowa Academy of Science: JIAS

Current attempts to introduce "scientific creationism", "creationism", or the Judeo-Christian biblical account of creation, as well as to reframe the discussion around terms such as "abrupt appearance theory", "intelligent design theory", or other disguised forms of creationism into the science classroom along with or instead of evolutionary science are strongly opposed by The Iowa Academy of Science on the grounds that creationism, in whatever form, is a religious doctrine and not science.

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Cover - Investigating Amphibian Declines: Proceedings Of The 1998 Declining Amphibians Conference

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Interactive Effects Of Anthropogenic, Environmental, And Biotic Stressors On Multiple Endpoints In Hyla Chrysoscelis, Carol A. Britson, Stephen T. Threlkeld

Journal of the Iowa Academy of Science: JIAS

Multiple stressors have been proposed as causative agents for declining populations and increased incidence of malformations in amphibians although few studies have examined possible interactions among these stressors. We measured interactive effects of UV radiation, three chemicals, and interspecific competition (with Rana 1phenocephala) on multiple endpoints in Hyla chrysoscelis using a center point- and chemical-free control-enhanced 2⁴ factorial design. UV radiation was transmitted or filtered using OP-4 or OP-3 acrylite filters installed above 72, 500-liter mesocosms on 16 May 1997. Methyl mercury, chlorpyrifos, and atrazine were applied at levels of 0, 10, 50, and 100 % of 400 ppb, …

Defining Anuran Malformations In The Context Of A Developmental Problem, Carol U. Meteyer, Rebecca A. Cole, Kathryn A. Converse, Douglas E. Docherty, Mark Wolcott, Judy C. Helgen, Richard Levey, Laura Eaton-Poole, James G. Burkhart

Journal of the Iowa Academy of Science: JIAS

This paper summarizes terminology and general concepts involved in animal development for the purpose of providing background for the study and understanding of frog malformations. The results of our radiographic investigation of rear limb malformations in Rana pipiens provide evidence that frog malformations are the product of early developmental errors. Although bacteria, parasites and viruses were identified in these metamorphosed frogs, the relevant window to look for the teratogenic affect of these agents is in the early tadpole stage during limb development. As a result, our microbiological findings must be regarded as inconclusive relative to determining their contribution to malformations …

A Relationship Between Trematode Metacercariae And Bullfrog Limb Abnormalities, James L. Christiansen, Heather Feltman

Journal of the Iowa Academy of Science: JIAS

This study is the first report of statistically significant relationships between limb abnormalities and trematode metacercariae in natural populations of frogs. We examined only parasite associations and did not investigate numerous potential pollutants that have been suggested by others to be associated with frog limb abnormalities. Rana catesbeiana of varying ages with a variety of limb abnormalities were found during the flood of 1993. By June 1994, the receding flood waters had left four pools, each with newly metamorphosing bullfrogs. Only one of the pools contained abnormal individuals and histological examination revealed significantly greater prevalence of trematode metacercarial infection in …

Morphological Abnormalities In Illinois Cricket Frogs, Acris Crepitans, 1968-71, Robert H. Gray

Journal of the Iowa Academy of Science: JIAS

Reports of malformed amphibians have been increasing, including external deformities such as missing or extra arms and legs, missing eyes and mandibles, and internal abnormalities involving the bladder, digestive system, and testes. Natural phenomena such as limb amputations during predation attempts by other animals, parasitism, xenobiotic chemicals (herbicides, insecticides, fertilizers and others), and UV-B or other radiation (either directly or indirectly by triggering production of toxicants from nontoxic chemicals) have all been linked to amphibian abnormalities. From 1968-71, I studied the natural history, effective breeding size, and seasonal, annual, and geographic variation in color morph frequencies of cricket frogs (Acris …

Amphibian Use Of Constructed Ponds On Maryland's Eastern Shore, Catherine E. Merovich, James H. Howard

Journal of the Iowa Academy of Science: JIAS

Amphibian assemblages were sampled at nine constructed ponds (three in each age category: new ponds-age <1 yr, young ponds-age 4-5 yr, old ponds-age >30 yr) on Maryland's eastern shore (May-October 1994, March-August 1995) using a total of 27 drift fence and funnel trap arrays. The importance of habitat and landscape variables including pond age was considered in explaining amphibian use and distribution across ponds. Specifically, amphibian (1) abundance; (2) composition; (3) diversity; (4) richness; and (5) reproductive success were studied. During both years, we captured 1904 individuals comprising ten species. The most frequently collected species (species found in all treatments) were Bufo fowleri, Rana sphenocephala utricularius, and Rana …

A Winter/Spring Study Of Salamanders In A Disturbed, Fragmented Habitat Surrounded By Farm Land, James C. Ball

Journal of the Iowa Academy of Science: JIAS

The continued development of fragmented habitats contributes to the decline of amphibians species, and there needs to be a method for evaluating the potential of these habitats to sustain amphibian populations. The effect of fragmented and disturbed habitats among salamander species is difficult to assess because these caudates are difficult to find and enumerate. One approach for estimating the total population of salamanders is to sample them when they migrate to their winter/spring breeding ponds. One fragmented habitat in Southern Michigan was sampled for breeding salamanders during the winter/spring of 1997. Four species of salamanders were detected at this site; …

Amphibians And Reptiles Captured In Drift Fences In Northwest Wisconsin Pine Barrens, James O. Evrard, Steven R. Hoffman

Journal of the Iowa Academy of Science: JIAS

Drift fence surveys were initiated by the Wisconsin Department of Natural Resources (WDNR) in the Crex Meadows Wildlife Area (CMWA) in 1993. Systematic drift fence trapping of amphibians and reptiles in the northwest pine barrens was conducted in a 1996- 97 cooperative effort by the WDNR, the U.S. Forest Service (USFS), and the Great Lakes Indian Fish and Wildlife Commission (GLIFWC). Drift fences were operated in four managed barrens properties, the CMWA, Namekagon Barrens Wildlife Area (NBWA), the Douglas County Wildlife Area (DCWA), and the Moquah Barrens Wildlife Area (MBWA). Eighteen amphibian and reptile species (four salamanders, eight anurans, one …

Frog And Toad Population Monitoring In Michigan, Lori G. Sargent

Journal of the Iowa Academy of Science: JIAS

A volunteer-based monitoring project for frog and toad populations in Michigan was initiated in 1996. The survey protocols developed by the North American Amphibian Monitoring Program (NAAMP) were used and modified to suit the needs of the Michigan project and because of the highly variable Michigan spring weather. The modifications include route establishment, recommended dates during which surveys are conducted, and a more specific definition of population indices. Development of the project included training workshops for volunteers.

Differences Among The Spatial Distribution Of Sympatric Amphibians, Robert Brodman

Journal of the Iowa Academy of Science: JIAS

To assess amphibian declines, the factors that cause natural fluctuations in population size must be considered (Pechmann et al. 1991). Interspecific competition, predation and pond drying are known to influence patterns of distribution and composition of larval amphibian assemblages (Morin 1983, Brodman 1996, Skelly 1996). While a few studies have quantified amphibian patterns across a large number of ponds, most studies on breeding pond distributions have typically focused on pond characteristics associated with pairs of coexisting species (Thompson and Gates 1982, Skelly 1996). Little has been examined about the differences among the spatial distributions of all potentially interacting amphibian populations …

Iowa Academy Of Science 112th Annual Meeting [2000]: Advance Program, Iowa Academy Of Science

Iowa Academy of Science Documents

Contains information about the schedule and presentations for the 2000 annual meeting of the Iowa Academy of Science.

Design And Implementation Of A University Department Website, Margaret M. Rick

Graduate Research Papers

The website design cycle consists of four important components: (1) planning, (2) production, (3) implementation, and (4) operation. Within these components are a variety of vital tasks ranging from defining the objective and audience to conceptualizing the site, determining content, and creating, testing, and revising the site. Numerous rules or accepted principles guide the design process from color and font selection, to graphic creation, to site navigation layout. Once created, a website must be maintained: content should be updated and outside links verified on a regular basis. A site that is not maintained or kept current is of no benefit …

Diversity In The College Curriculum : Overview Of The Literature, Ruben J. Carrion

Graduate Research Papers

The colleges and universities in the United States that have adopted a proactive commitment to diversity in the curriculum have done so because they understand how their central mission is linked with the future of a diverse society. They are aware that, in the new millennium, most new jobs in the economy require a postsecondary education, and women and racial/ethnic minorities compose a majority of the workforce. One result of this awareness is the transformation taking place at many institutions that links diversity in the curriculum with the development of new teaching practices and learning practices.

This review of the …

A Preferred Vision For Administering Secondary Schools : A Reflective Essay, Cora J. Turner

Graduate Research Papers

What is Leadership? Is leadership the use of power and authority to make decisions? Is leadership a skill learned over time to facilitate the process of change? These are questions which must be pondered. 1 Leadership is a process which involves the skill of communicating with others through teamwork to carry out a vision. Leadership is an influenced relationship between the leader and follower in pursuit of a common goal. As the mission and goals are defined, the organization has the opportunity to become efficient and effective. The leader-follower relationship is based on influence, change, mutual purpose, and commitment.

The Double Edged Sword Of Depersonalization: An Examination Of Depersonalization's Role In The Police Profession, Michael J. O'Connor

Dissertations and Theses @ UNI

The role of depersonalization is the central focus of this study. A major issue in examining the role of depersonalization is whether the present concept of burnout is an appropriate indicator of bumout for police officers. The commonly accepted conception of burnout is a process of emotional exhaustion that leads to depersonalization, followed by a reduction in work accomplishment. Depersonalization, by this conception, is a symptom of burnout. By definition,depersonalization is the psychological distancing of emotional and psychological trauma in stressful situations—a coping technique.

For police officers, depersonalization acts as a shield of emotional armor to maintain a sense of …

The Portrayal Of Native American Women In Fiction Written For Young People, Linda L. Tyon

Graduate Research Papers

The purpose of this study was to examine how Native American women were portrayed in contemporary fiction written for young children. The study was limited to books published between 1989 and 1999. Content analysis was used to obtain data for this study. Twenty-three Native American female characters from twenty books were included in the population sample. The study was to determine if a majority of books would portray Native American women accurately based on current demographic data. It also sought to determine if the majority of contemporary fiction books would continue to display stereotypic portrayals of Native American women and …

Counting It All And Counting For Something: An Exploration Of Women In The Contingent Service Industry, Cheryl L. Buchholz

Dissertations and Theses @ UNI

The American workplace has gone through numerous changes in the Twentieth century. One of the most significant changes is the role of women in the workplace. The role of women in the modern workplace is vastly different from their role in the beginning of the Twentieth century. The changing role of women in the workplace is present in the biggest sector to grow in employment in the last 20 years: the service industry. The lack of significant research of the women's role in the service industry warrants sociological exploration of this area of employment for women. This thesis is an …

Family Structure And Children's Academic Achievement : The Role Of Income And Parental Control, Jean M. Hoth

Dissertations and Theses @ UNI

The purpose of this quantitative study is to examine the relationship between family structure and children's academic achievement, and to assess the roles of income and parental control in this relationship. The present study involves secondary analysis of data from the National Survey of Families and Households (Sweet & Bumpass, 1996) The National Survey of Families and Households (NSFH) is a national random sample survey conducted in two waves that covers a wide variety of issues on American family life. This study examines data gathered from the second wave of this data set. The total sample for the present research …

Iowa Academy Of Science Membership Directory, 2000-2001, 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
Corporate Sponsors ... 63

Preservice Teachers’ Beliefs About Teaching And Learning, Helga M. Gudenschwager

Dissertations and Theses @ UNI

Research shows that knowing what preservice teachers believe about teaching and learning helps their instructors to reinforce those beliefs that are compatible with current approaches in education and challenge those that promote the perpetuation of antiquated and ineffective teaching practices. Four main research questions guided this study: 1. To what extent the beliefs expressed by participants aligned with traditional or constructivist perspectives? 2. Do elementary and secondary majors differ in terms of their preference for practices aligned with these perspectives? 3. Do elementary and secondary majors differ in terms of their beliefs about the goals of education and effective strategies …

Preservice Teachers' Beliefs About Teaching And Learning, Helga M. Gudenschwager

Graduate Research Papers

Research shows that knowing what preservice teachers believe about teaching and learning helps their instructors to reinforce those beliefs that are compatible with current approaches in education and challenge those that promote the perpetuation of antiquated and ineffective teaching practices.

Four main research questions guided this study: 1. To what extent the beliefs expressed by participants aligned with traditional or constructivist perspectives? 2. Do elementary and secondary majors differ in terms of their preference for practices aligned with these perspectives? 3. Do elementary and secondary majors differ in terms of their beliefs about the goals of education and effective strategies …

Diversity The Gift Of Difference Workshop Brochure

Postville Project Documents

A pamphlet announcing a workshop on how immigrants have similar life experiences but may view these experiences through a different lens.

Fall Commencement [Program], December 18, 1999, University Of Northern Iowa

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

University Of Northern Iowa Graduate Council Minutes, November 11, 1999, University Of Northern Iowa. Graduate Council.

Documents - Graduate Council

Meeting minutes from the Graduate Council of the University of Northern Iowa.

Uni Schedule Of Classes, Fall 1999, University Of Northern Iowa

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the University of Northern Iowa.

Uni Schedule Of Classes, Summer 1999, University Of Northern Iowa

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the University of Northern Iowa.

Spring Commencement [Program], May 8, 1999, University Of Northern Iowa

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.