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Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Leafy Spurge (Euphorbia Esula L.) Spread In Iowa, S. C. Huerd, S. E. Taylor

Journal of the Iowa Academy of Science: JIAS

Leafy spurge (Euphorbia esula L.), a noxious perennial weed spreading south from the northern Great Plains into Iowa, is considered a threat to Iowa's Prairie preserves because it is an aggressive non-native plant that dominates the landscape through rapid sexual and asexual reproduction. Methods to control leafy spurge include cultural and chemical controls, and biological controls are currently being developed. In 1992 and 1993 we surveyed the extent of leafy spurge spread in Iowa and found 26 of 99 Iowa counties with leafy spurge populations. Iowa's leafy spurge populations are rapidly expanding on untilled lands such as roadsides, especially in …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Cover - Perspectives On The Declining Flora And Fauna Of Iowa: A Symposium, Part 2

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Perspectives On Iowa's Declining Amphibians And Reptiles, James L. Christiansen

Journal of the Iowa Academy of Science: JIAS

Changes in range and abundance of Iowa's amphibians and reptiles can be deduced by comparing records from recent studies with excellent collections from Iowa by Professor R. M. Bailey made from 1938-1943 in addition to museum records accumulated before 1950. Additional recent data make necessary this updating of a similar study conducted in 1980. The current study finds many of our frogs to be in decline, some in a pattern from north to south, but most as a diffused loss of populations, probably as a result of habitat destruction. The crawfish frog, one of the two frogs considered threatened in …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Carrion Beetles (Coleoptera: Silphidae) Of Northeastern Iowa: A Comparison Of Baits For Sampling, David R. Coyle, Kirk J. Larsen

Journal of the Iowa Academy of Science: JIAS

Carrion beetles (Coleoptera: Silphidae) were inventoried over a 8-week period from June into August of 1996 at 10 sites in 4 counties of extreme northeastern Iowa. Carrion preference and relative abundance of carrion beetles were studied by use of non-lethal pitfall traps constructed from large plastic plant pots and baited with aged fish, beef liver, chicken, or piglets. A total of 3,183 carrion beetles were collected, representing 11 different species. The most commonly encountered species of carrion beetles in northeastern Iowa included Necrophila americana (71.5%) and Oiceoptoma novaboracense (18.5%). When comparing baits, chicken and fish attracted the greatest number of …

Awards And Recognition, Iowa Academy Of Science, 1998

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Distribution And Ecology Of The Morels And False Morels Of Iowa, L. H. Tiffany, G. Knaphus, D. M. Huffman

Journal of the Iowa Academy of Science: JIAS

The distribution, time of fruiting and habitats of morels and false morels in Iowa were documented during a 10 year survey (1984-1993). Distribution maps for each species also include information from published reports and from herbarium records. The true morel genus, Morchella, is represented in Iowa by five species. Three of these species, M. deliciosa, M. esculenta and M. crassipes, are sometimes interpreted as segments of one large, extremely variable species. M. semilibera and M. angusticeps also occur. M. angusticeps, a black morel, has not been previously reported from Iowa. Four false morels, two species in each of two genera, …

Decline Of Iowa Populations Of The Regal Fritillary (Speyeria Idalia) Drury, Diane M. Debinskl, Liesl Kelly

Journal of the Iowa Academy of Science: JIAS

The Regal Fritillary butterfly, Speyeria idalia Drury (Lepidoptera: Nymphalidae, Argynninae), is a prairie endemic species which has exhibited a dramatic decline in Iowa during the last few decades. Tallgrass prairie is the primary habitat of S. idalia and the butterfly's presence is correlated with the presence of violets (Violaceae). Due to the extensive habitat fragmentation of Iowa prairies, both the butterfly and its host plant populations are limited primarily to unplowed, relatively pristine prairies. Thus, S. idalia is an excellent case study of a prairie endemic species. Here, we report on the results of a two-year survey of the insect …

Book Review - The Iowa Breeding Bird Atlas, Louis B. Best

Journal of the Iowa Academy of Science: JIAS

The Iowa Breeding Bird Atlas is the first comprehensive statewide survey of Iowa's breeding birds. Through the efforts of over 500 people, every county in the state was sampled to provide a record of the composition and distribution of the bird life in Iowa. The project entailed dividing the state into 861 atlas blocks; 83% received at least some coverage and 71 % were completed. Information known through 1995 is included in the text, although the atlas project ended in 1990.

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Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

The Fungi, Lichens, And Myxomycetes Of Iowa: A Literature Review And Evaluation, Lois H. Tiffany, George Knaphus

Journal of the Iowa Academy of Science: JIAS

The fungi have been, and continue to be, a poorly documented portion of Iowa’s biological inheritance. Although many are perennially present in soil and plant debris and are crucially involved in the release and recycling of materials from organic residues or are partners with plant roots as mycorrhizae, they are not obvious until they produce fruiting structures such as mushrooms, boletes, brackets, puffballs, etc. The fungi causing plant disease are more obvious because of the reactions of their host plants; thus the earliest records of Iowa fungi are of ones causing plant diseases commonly referred to as mildews, rusts, and …

Status Of Aquatic Vascular Plants 1n Iowa's Natural Lakes, G. S. Phillips

Journal of the Iowa Academy of Science: JIAS

Conversion of wetlands to agricultural land during the settlement of Iowa has resulted in a significant decline in the total area of lake habitat in the state. This reduction in area, combined with the degradation of remaining sites, resulted in dramatic reductions in aquatic vascular plant populations associated with Iowa's natural lakes. While declines in plant species inhabiting fen, bog, seepage, prairie pothole, and marsh type wetlands have been extensively documented, few quantitative data exist for lake type wetlands. During the summer of 1996, a total of 86 natural lakes in Iowa were surveyed for aquatic vascular plants. Many of …

Iowa's Changing Forest Resources, Steven E. Jungst, Donald R. Farrar, Michael Brandrup

Journal of the Iowa Academy of Science: JIAS

After a period of decline in area extending from the 1850s to 1974, Iowa's forest area increased between 1974 and 1990. Although the area increase is encouraging, it may be fleeting. In addition, changes in forest stand structure and forest ownership patterns along with other pressures may make it difficult to maintain healthy forest ecosystems in the future. Notes from the original land survey in Iowa coupled with information from U.S. Forest Service forest inventories make it possible to look at changes in forest area and forest tree types. Unfortunately, similar long-term data do not exist to make possible a …

The Status Of Iowa's Lepidoptera, Dennis W. Schlicht, Timothy T. Orwig

Journal of the Iowa Academy of Science: JIAS

Including strays, 122 species of butterflies have been confirmed in Iowa. However, since European settlement the populations of taxa of Iowa Lepidoptera have declined. While certain generalist species have experienced declines, species with life cycles that include native habitats, especially prairies and wetlands, have been particularly vulnerable. In a 1994 revision of the Iowa endangered and threatened species list, the Natural Resource Commission (NRC) listed two species of butterflies as endangered, five as threatened, and 25 as special concern, using general legal definitions of those rankings (NRC 1994). But after examining recent records, we have revised that list, using numbers …

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Mammals Of Iowa: Holocene To The End Of The 20th Century, John B. Bowles, Daryl L. Howell, Richard P. Lampe, Howard P. Whidden

Journal of the Iowa Academy of Science: JIAS

This review of Iowa's mammal fauna at the close of the 20th century summarizes changes in distributional patterns following Euroamerican settlement in the early 1800s. Data from historical records, museum specimens, and presettlement late Holocene fossils indicate presence of 69 resident mammals at that time. Hunting pressures and the conversion of prairie and forest to agricultural fields reduced the populations and ranges of many state mammals, and 14 species were extirpated by 1900. An additional 15 species are either uncommon or rare today, and the Iowa Department of Natural Resources lists four species as endangered, three as threatened and one …

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Books ‘N Kids On-Line: An On-Line Book Club, Pamela J. Martin

Graduate Research Papers

The purpose of this project is to create an On-line book club for 4th and 5th grade elementary students that will encourage them to read and interact with other members regarding their thoughts and feelings about particular books. This project, Books 'n Kids On-line, will integrate the reading, writing, and sharing elements of a book club with On-line Web communication.

What Does Educational Technology Mean In The Promotion Of Student Achievement : A Literature Review, Fongching Lee

Graduate Research Papers

Research indicates that educational technology has a valued status, especially in the promotion of student learning. The theory behind the study of educational technology includes the four paradigms defined by Saettler (1990): the media view, the communications and systems view, the behavioral sciences view, and the cognitive science concept. This theory serves as the basis for the implementation of educational technology by the teachers.

Implementing educational technology, in special education and regular education (k-12), has indicated positive influences on student achievement. Greater student achievement would translate to better worker-citizens for the United States, thereby allowing the country to be competitive …

Rhodes Scholar: Defining An Opportunity, Kevin Diehl

Presidential Scholars Theses (1990 – 2006)

While amateur athletes pursue the Olympics to prove their athletic prowess, collegiate scholars try to quantify their academic success by winning a Rhodes Scholarship. Track athletes must post an acceptable qualifying time just to compete in the Olympic trials where they must earn a berth to the Olympics. Likewise, after receiving their university's formal endorsement, aspiring Rhodes Scholars have to portray their all-around qualities and dreams in an application and essay, hoping to earn the chance just to be selected for a state interview. If they are fortunate at this level, the applicants become one of two nominees from each …

Development Of Rapid Assessment Protocols For Evaluating The Mental Health Status Of Incoming Bosnian Refugees In Waterloo, Iowa, Susan Renee Dobie

Dissertations and Theses @ UNI

The purpose of this study was to develop rapid assessment protocols to evaluate the prevalence of common symptoms of clinical depression and post-traumatic stress disorder in the adult Bosnian refugee population in Waterloo, Iowa.

An extensive literature review was conducted to research (a) refugeeism around the world, (b) causes of refugeeism, (c) the refugee experience, (d) refugee health challenges, (e) post-traumatic stress disorder in refugees, (t) depression in refugees, (g) acculturation stress in refugees, (h) rapid assessment procedures in public health, (i) rapid mental health assessments, (j) the case of refugeeism in the former Yugoslavia, (k) the history of refugeeism …

The Social History Of A Moral Vision : A Qualitative Study Of The Ulster Project In Decorah, Iowa, Mark Murray Mccrory

Dissertations and Theses @ UNI

The purpose of this qualitative study was to explore the beliefs, feelings, and experiences of 10 people involved with the Ulster Project in Decorah, Iowa. In addition, the study sought to assess the merits and consequences of the Project and to evaluate the validity of the contact hypothesis. The Ulster Project is a non-profit organization, which sponsors an ecumenical summer visit of Northern Irish youth to the United States. By exposing its visitors to people of the opposite religion, the Project's long range goal is to heal the many scars which have been built up through years of violence and …

Gangs, Drugs, And Delinquency, Tina Renea Engstrom

Dissertations and Theses @ UNI

The main objective of this thesis is to study the link between gangs, drug use, and delinquency. Previous literature suggests that social learning and social control theories commonly provide theoretical contexts for explaining deviant behavior. The present research applies the principles of Sutherland's (1949) theory of differential association and Hirschi' s (1969) theory of social control to the delinquent behavior of gang members and their drug involvement. The present study does not attempt to explain why youths become gang members. Rather, this research uses an integration of social learning and social control theories to explain why gang members become involved …

Recycling Economic Development: Observing The Wage And Occupational Structure Of The Plastics Industry, Dawn Marie Dungan

Dissertations and Theses @ UNI

This thesis provides an exploratory analysis of the occupational and wage structures of a predefined set of plastics companies in Iowa. Characteristics of the occupational and wage structures of recycling and nonrecycling based companies in the plastics industry in Iowa were compared to a standard established by the 1992 Iowa Statewide Wage Survey. The theory of the diminishing middle was used as the guiding framework from which to draw assumptions. The plastics industry was defined as all companies in the state of Iowa engaging in any combination of collection, processing, or manufacturing of recycled or raw plastic products for economic …

Acclaiming, Attacking, And Defending On Political Talk Radio, Joseph R. Blaney, P. M. Pier

Iowa Journal of Communication

In recent years, the importance of talk radio has grown dramatically. From 1989 to 1994, the number of news/talk radio stations grew from 308 to 1,028 (Petrozello, 1994a). Furthermore, one seventh of all radio revenue in 1993 came from buys at talk outlets (Petrozello, 1994b). Among American adults, 18% report listening to political talk shows at least twice every week (Cappella, Turow, & Jamieson, 1996). Anecdotal evidence suggests chat calk radio can be highly influential in the electoral process (Zerbinos, 1995/1996). On February 12, 1996, the leading contenders for the Republican presidential nomination appeared ad seriatum on Des Moines calk …

A Learning Strategy For The Application Of Interpersonal Theories, William A. Ausmus

Iowa Journal of Communication

Scientific theories are used primarily to predict and control. In that regard interpersonal theories are not very useful if applied to interpersonal relationships. But theories are also used to evaluate, describe, explain, and understand (Cragan & Shields, 1998). The learning project I describe is designed for students of interpersonal communication as they learn to use and apply interpersonal theories to their everyday relational interactions. The learning project consists of three components. 1. Students are asked to identify and describe an interpersonal communication problem. The problem is analyzed using interpersonal theories and a prescription/solution based in theory is also developed. 2. …