Social and Behavioral Sciences Commons^™

Characteristics Of Channel Catfish Populations In Streams And Rivers Of Iowa With Varying Habitats, Vaughn L. Paragamian

Journal of the Iowa Academy of Science: JIAS

From 1983 co 1985, more than 1,000 channel catfish (Icatalurus punctatus) were sampled with rotenone from 50 streams and rivers in Iowa to assess differences in population densities, standing stocks, viral statistics, age and growth, and habitat use Catfish densities ranged from 5 fish/ha in sites on the South Skunk and Upper Iowa Rivers to more than 4,400 fish/ha at a site on the Thompson Fork of the Grand River. Standing stocks ranged from a low of 0.1 kg/ha on a site on the South Skunk River to a high of 467 kg/ha on the East Fork of the Des …

A Survey Of The Benthic Macroinvertebrates Of The Big Spring Basin, Iowa, Jack O. Kennedy, John G. Miller Iii

Journal of the Iowa Academy of Science: JIAS

Benthic macroinvertebrates were collected in the Big Spring Basin, located in northeastern Iowa, from May through October 1988. The purpose of the study was to develop baseline information on the benthic organisms present in the basin. A total of 167 taxa including seven species of leeches, five genera of snails, three genera of clams, one crayfish genus and over 150 taxa of aquatic insects were identified with the majority of the organisms having been reported in Iowa previously. Benthic organisms not usually encountered in Iowa include the planarian, Cura formanii; the isopod, Lirceus; the beedes, Enrxhrus, Hydrophilus, and llybius; the …

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Special Issue Photo: Richard V. Bovbjerg, Director Of The Iowa Lakeside Laboratory 1963-1989

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Changes In A Prairie Bird Population From 1940 To 1989, Neil P. Bernstein, Kristine K. Baker, Sherry R. Wilmot

Journal of the Iowa Academy of Science: JIAS

We repeated a bird census of a prairie/field community that was done by Kendeigh (1941) in 1940. Changes in the bird populations were compared with changes in vegetation, agricultural land use for the county, and trends in urbanization. Grassland birds did decline in abundance due to causes similar to those cited in other studies. The increase in forest and edge nesting species was more unusual to this study, and probably correlated with the woody succession that had occurred.

Time To Metamorphosis As A Function Of Larval Size In A Population Of Ambystoma Tigrinum Salamanders Consisting Of Cannibal And Typical Morph Phenotypes, Michael J. Lannoo, Michael P. Sweet, Nancy M. Ladehoff, Edmund S. Fangman, William B. Collins

Journal of the Iowa Academy of Science: JIAS

Salamander larvae of the species Ambystoma tigrinum are dimorphic in northwestern Iowa. In addition to common typical morphs, there exist rare, specialized cannibal morphs, which are induced environmentally by crowding. Cannibal morph phenotypes are characterized morphologically by their large size, proportionately large heads and hypertrophied vomerine teeth, and behaviorally by facultative cannibalism. During metamorphosis amphibians are particularly sensitive to predation. To help understand why cannibal morphs are uncommon, we have raised cannibal and typical morphs in isolation and under crowded conditions to compare the timing and duration of metamorphosis between these morphs. Results show that larger larvae, most of which …

The Cladocera Of Lake West Okoboji, Iowa - Revisited, Kenneth L. Lang

Journal of the Iowa Academy of Science: JIAS

Seven stations, established in 1968 to sample Cladocera, were sampled again, using the same methods, in 1988. Seven species, all of them in low abundance, are new records for Lake West Okoboji. In 1988, there was little difference 1) in the ranking of the stations relative to abundance of cladocerans, 2) the distribution and abundance of the species by habitat-type, 3) the seasonality of the predominant species in the specific habitats, 4) the temporal patterns of the number of species and total cladoceran abundance in the specific habitats, compared to 1968. On the average there were more species but lower …

Holocene Vegetational Changes In Eastern Iowa, R. G. Baker, C. A. Chumbley, P. M. Witinok, H. K. Kim

Journal of the Iowa Academy of Science: JIAS

Pollen and plant macrofossil analysis from three sites along an east-west transect in southeastern Iowa provide evidence for Holocene vegetational development. Colo Marsh at the west end of the transect is relatively complete, with a late-glacial spruce zone ending about 11,500 yr B.P.; a deciduous forest zone from about 11,500 to 8300; a prairie zone from 8300 to 4500, and prairie with oak from 4500 to presettlement times.

Sediments from the site at the Indian Creek Nature Center, midway in the transect, date only from about 6000 to 1600 yrs B. P. This site also was dominantly prairie from 6000 …

A Summer Course In Invertebrate Developmental Biology At Iowa Lakeside Laboratory: A Unique Experience, Carol W. Schutte, Dale J. Witt, Nicole Y. Janosek, Douglas E. Robinson, Edwin C. Powell, George G. Brown

Journal of the Iowa Academy of Science: JIAS

The course, "Developmental Biology of Selected Invertebrates'', has been offered in alternate years at Iowa Lakeside Laboratory (Ill) on Lake West Okoboji, Dickinson County, Iowa, since the first summer session of 1983. This course has taken advantage of the great diversity of invertebrates found in the Ill area and has demonstrated to students and faculty alike the exciting phenomena and principles of developmental biology. The course is continuously evolving as new experiments and observations are discovered with each offering of the course.

Title Page

Basic Communication Course Annual

No abstract provided.

Editor's Page, Lawrence W. Hugenberg

Basic Communication Course Annual

This volume is the result of tremendous dedication and the ongoing belief in the need to provide a publication outlet for research and information dedicated solely to the basic communication course. Many people have contributed their time, energy and talents to this volume. I first want to recognize the excellent work provided by the Editorial Board who worked to meet my deadlines and provide useful feedback to the authors to help them revise and/or resubmit their research. Without excellent cooperation from each of the reviewers, the annual would not be complete.

The Future Of The Basic Course, Judy C. Pearson, Paul E. Nelson

Basic Communication Course Annual

This article recommends some changes that should occur in the basic course. The prescriptions are based on four notions: the course must include accurate information; it should be inclusive in nature; it must be responsive to our contemporary world and to our students' current and future communicative needs; and it must provide a unique contribution to our students' education. The authors suggest that the course has not been sufficiently attentive to accuracy, inclusiveness, responsiveness and uniqueness; furthermore, contemporary changes require increased vigilance in these areas.

Evaluating The Basic Course: Using Research To Meet The Communication Needs Of The Students, Lyn B. Bendtschneider, Douglas M. Trank

Basic Communication Course Annual

This paper presents a rationale for evaluating the basic course to determine the extent to which it meets the communication needs of the students. The results of a study undertaken at one institution are offered to illustrate the questions and implications such an evaluation might address. The literature relevant to basic course assessments are reviewed, and suggestions for basic course programs undertaking this type of evaluation are discussed.

A Communication Based Model Of Friendship For The Interpersonal Communication Course, Rod Troester

Basic Communication Course Annual

This paper presents a model of friendship drawn from the friendship research of S.W. Duck and the management approach to interpersonal communication of S.A. Deetz and S.L. Stevenson.

Duck's research is briefly summarized and offered as a theoretical and conceptual foundation for understanding the psychological or cognitive dimensions of friendship. The Management Approach to interpersonal communication, researched by Deetz and Stevenson, is developed as a means for understanding the behavior dimensions associated with the conduct of friendship.

These complementing approaches are integrated using the general systems notions of structure, function and evolution. The approaches and model are discussed as they …

The Basic Course At U.S. Colleges And Universities: V, James W. Gibson, Michael S. Hanna, Greg Leichty

Basic Communication Course Annual

This paper reports the results of a survey undertaken to determine the nature of the basic course in speech as it is now taught at United States colleges and universities, and to identify important trends in instruction of the basic communication course.

It appears that enrollment in the basic course is increasing. Findings are also reported concerning the orientation taken in the basic course, along with information on instructional methods used and administrative concerns connected with the basic course. The various implications of the findings are discussed.

Author Identification

Basic Communication Course Annual

Biographical information about the authors and editors who contributed to this issue

Editorial Board

Basic Communication Course Annual

No abstract provided.

Basic Communication Course Annual Vol. 2

Basic Communication Course Annual

Full issue (285 pages, 9.75 MB)