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Journal Of The Iowa Academy Of Science Submission Form And Instruction Sheet

Journal of the Iowa Academy of Science: JIAS

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Journal of the Iowa Academy of Science: JIAS

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Journal of the Iowa Academy of Science: JIAS

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Climate Trends In Iowa, Richard E. Carlson

Journal of the Iowa Academy of Science: JIAS

Long-term trends for various weather elements are presented for the period 1900-1988. Summer and winter season, and annual air temperature patterns are statistically weak because of large inrerannual variability, but trends are evident. There was a general warming from 1900 until the 40's, with a leveling or slight cooling following. Since the mid-70's, a warming trend seems to be taking place, but this cannot be confirmed. Spring season air temperatures showed no trend except that the most recent 4 years (1985-1988) were decidedly warmer than normal. Winter season air temperatures showed a change in trend in the 30's, but the …

Computed Normal Range Of Iowa Statewide July Precipitation, H. C. Vaughan, D. S. Sheets, G. R. White

Journal of the Iowa Academy of Science: JIAS

Iowa summer rainfall distributions are examined to identify small-scale anomalies. Examination of extremely wet and dry summer months shows that large rain amounts fall mainly in small, cellular areas for both extremely wet and dry months. These configurations result from individual rainfall events. Analysis of the distribution of mean July rainfall across the state reveals significant anomalous wet and dry regions that contrast with the background, east-west rainfall gradient. Because of the skewed nature of summer rainfall distributions, the median value is used to represent a more realistic expected rainfall amount for any given year. Some parts of the stare …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

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Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Tell-Tail Adaptations For Respiration And Rapid Escape In A Freshwater Oligochaete (Lumbriculus Variegatus Mull.), Charles D. Drewes

Journal of the Iowa Academy of Science: JIAS

The aquatic oligochaete, Lumbrimlus variegatus (Order Lumbriculida; Family Lumbriculidae), utilizes a combination of postural and anatomical specializations that enhance gas exchange across the dorsal surface of posterior segments as these segments lay exposed at the air-water interface. Predator avoidance by exposed posterior segments is enhanced by neurobehavioral mechanisms involving a well-developed lateral giant nerve fiber system that mediates rapid escape withdrawal of the worm's tail in response to shadow or mechanosensory stimuli.

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 …

Diatoms (Bacillariophyceae) From The Excelsior Fen-Complex, Dickinson Co., Iowa, With The Description Of Two New Taxa, Charles W. Reimer

Journal of the Iowa Academy of Science: JIAS

This paper presents a summary list of the presently known diatom flora of the Excelsior Fen-complex and a description of two new taxa: Navicula incompta var. incurva Reim. var. nov. and Stauroneis bovbjergii Reim. sp. nov. Notes on some physico-chemical parameters of the habitat and on the ecology of the taxa are included.

An Interpretation Of Hustedt's Terms "Schattenlinie", "Perlenreihe" And "Hocker" Using Specimens Of The Cyclotella Radiosa-Complex, C. Distinguenda, Hust., And C. Cyclopuncta Nov. Sp., Hannelore Hakansson, John R. Carter

Journal of the Iowa Academy of Science: JIAS

With the help of light- and scanning electron micrographs HUSTEDT'S terms "Schattenlinie", "Perlenrcihe", and "Hocker" are explained using specimens in the Cydotella radiosa complex, and C. distinguenda HUST. The complicated history of C. operculata (AG.) KUTZ., published elsewhere, has shown that C. distinguenda HUST. is the correct name to be used for this taxon. In this connection the new nomenclatural combination C. distinguenda var. unipunctata nov. comb. is proposed.

Morphological differences are discussed and the possibility of different "unipunctata" species is shown. Distinct morphological features found indicate the necessiry to describe a new species: C. cyclopuncta nov. sp. rather than …

The Mating Systems And Pollination Biology Of Three Species Of Verbena (Verbenaceae), Robert W. Cruden, Kristina K. Baker, Thomas E. Cullinan, Karen A. Disbrow, Kelly L. Douglas, John D. Erb, Kenneth J. Kirsten, Mary L. Malik, Elizabeth A. Turner, Jonathon A. Weier, Sherry R. Wilmot

Journal of the Iowa Academy of Science: JIAS

Because their flowers can be cross- and/or self-pollinated Verbena stricta, V hastata and V urticifolia are facultatively xenogamous. We suggest the flowers can be cross-pollinated because I) the fruit set of caged plants was substantially lower than that of open-pollinated plants, i.e. pollinators were necessary for typical fruit set and 2) the flowers of each species attracted a diverse array of hymenopteran, dipteran and lepidopteran pollinators that were capable of moving pollen between plants. Self-pollination was low due to the spatial separation of anthers and stigmas and/or an angled corolla that decreased the likelihood of pollen dropping from the anthers …

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.

University Of Texas At Tyler Catalog, 1990-1992, University Of Texas At Tyler

Catalogs

This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s).

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.

La Conservation Des Forêts Au Népal: Encourager La Participation Des Femmes, Augusta Molnar

Poverty, Gender, and Youth

Ce numéro de SEEDS porte sur les moyens mis en oeuvre pour faire participer les femmes à un programme gouvernemental visant à preserver et à restituer la forêt au Népal. Comme il arrive fréquemment lors de la mise en place de projets aussi vastes ayant une portée generale, les femmes n'étaient pas un centre d'intérêt spécifique au moment de la conception du projet. Cependant, lorsque les activités ont demarré, les responsables népalais du projet et leurs collègues de l'étranger se sont tres vite rendus compte que le succès du programme dépendait de la participation directe des femmes aux activités du …

Comparison Of Methods For Purification Of Dna From Rice, Theresa L. Hines, Neela R. Patel, Daoud Abu-Diab, Michael Sikes, Alvan K. Karlin

Journal of the Arkansas Academy of Science

Three techniques were employed to purify genomic DNA from deomstic rice (Oryza sativa L). Following extraction, the DNA was electrophoresed through agarose to determine its integrity. We determined that spooling yielded better quality, through lower quantity DNA than either of the other two techniques.

Cover And Front Matter, Volume One, Number One, Winter 1990, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Cover image and print journal front matter for the inactive journal Risk including masthead, publication information, manuscript guidelines, and other prefatory matter.

Proceedings Of The Perdix V Symposium: Gray Partridge And Ring-Necked Pheasant Workshop, Kevin E. Church, Richard E. Warner, Stephen J. Brady

Galliformes Specialist Group and Affiliated Societies: Conference Proceedings

Distribution and Abundance

Northern bobwhite, gray partridge, and ringed- neck pheasant population trends (1966-1988) from the North American Breeding Bird Survey, S. Droege and J. R. Sauer

Recent status of gray partridge in North America, W. J. Vander Zouwen

Historical review and status of gray partridge in Italy, C. Matteucci and S. Toso

Gamebird introductions in New Zealand: Successes and failures, K. Westerskov

Habitat Management Programs State and provincial programs for habitat enhancement on private agricultural lands, W. J. Vander Zouwen

Indirect impacts of pesticides on the production of wild gamebirds in Britain, N. W. Sotherton and P. A. Robertson …

The Level And Determinants Of Burnout Of Mormon Mothers In A Utah Suburban Town, Christina Mordock

Theses and Dissertations

The purpose of this study was to examine burnout in Mormon mothers in a suburban Utah town. Specifically the amount and some determinants of burnout among these Mormon women was studied. A random sample of 266 Mormon mothers completed a questionnaire and a modified version of the Maslach Burnout Inventory (MBI) which consisted of three subscales, (Emotional Exhaustion, Depersonalization, and Personal Accomplishment), and two categories in each subscale (Frequency and Intensity). The subjects scored in the moderately burned out category in each subscale. Significant relationships were found between the amount of burnout and the following: the age of the mother, …

Evidence For Common Coding Of Temporal And Nontemporal Information In Pigeons, Stephen Bridson

Theses and Dissertations (Comprehensive)

Two experiments found evidence that pigeons commonly code temporal and visual samples that are associated with the same comparisons in many-to-one matching. In Experiment 1, pigeons were trained to match temporal (2-sec and 8-sec keylight durations) and color (red and green) samples to line tilt comparisons (vertical and horizontal). Similar rates of forgetting were found for all samples. Furthermore, retention of sample information appeared more similar for samples which shared common comparisons than those that did not. In Experiment 2, pigeons learned new comparison (circle and triangle) associations with either temporal or visual samples from Experiment 1. When tested on …

Ua66/6/3/1 Biennial Report, Kentucky Gamma, Alpha Epsilon Delta

Student Organizations

Biennial report created by and about the Kentucky Gamma Chapter of Alpha Epsilon Delta premedical honor society sponsored by WKU Biology.

An Economic Impact Analysis Of The Proposed Yakima/Klickitat Fishery Enhancement Project; Preliminary Design Report, Appendix D., Richard S. Mack, Donald J. Cocheba, Daniel Green, David W. Hedrick

Economics Faculty Scholarship

The objective of this study is to estimate the economic impact of the proposed Yakima/Klickitat Production Project on the local economies of the Yakima and Klickitat subbasins. The project, when operating at planned maximum production, will augment the total number of salmon and steelhead returning to the subbasins by 77,600 and will increase the sustainable terminal harvest by 55,160. These estimates do not include fish harvested in the ocean or in the mainstem Columbia. In addition to evaluating the impacts of the construction, operations and maintenance, experimentation and monitoring, and harvest activities described in the Draft Environmental Assessment (Bonneville Power …

Nutritive And Nonnutritive Sucking And The Temporal Organization Of The Suckling Behavior Of Domestic Piglets, Jeffrey Rushen, David Fraser

Feeding Behavior Collection

Detailed video recordings of the suckling behavior of one piglet from each of four litters were analyzed to determine how the components of piglet suckling behavior are organized in relation to the time of milk ejection and the temporal pattern of grunting by the sow. Early in the suckling episode, most piglets massaged the udder with their snouts, and then changed gradually to sucking the teats with slow mouth movements (1-2/sec). The piglets then had a distinct phase of sucking with rapid mouth movements (4-5/sec) which began suddenly and lasted about 5 to 15 sec. The weight gains of piglets …

Attribute Relationships: An Impediment In Automating Schema Integration, Amit P. Sheth, Sunit K. Gala

Kno.e.sis Publications

Success in schema integration depends on understanding the semantics of schema components (e.g., entity sets, relationship sets, attributes), and the ability to capture and reason about these semantics. An important objective of our work on schema integration is to automate the reasoning as much as possible, and when not possible, depend on the human input and guidance. A key results of comparing the semantics associated with schema objects is that of determining attribute relationship. Once attribute relationships are determined, the task of object class(e.g., entity sets and relationship sets) integration becomes simpler and can e automated to a great extent. …

Population And Social Biology Of Free-Ranging Dogs, Canis Familiaris, Thomas J. Daniels, Marc Bekoff

Ecology Collection

Population size and density, age structure, survivorship patterns, sex ratios, social organization of urban, rural, and feral dog (Canis familiaris) populations were examined in Cd. Juarez, Mexico (urban site) and on the Navajo reservation (rural and wild sites) between June 1983 and December 1984. Urban and rural dogs were less social than expected whereas dogs characteristically lived in packs. Seasonal variation in the structure of feral dog packs influenced by reproduction, both directly (pups born into the pack) and indirectly (pregnant females may temporarily emigrate form the pack to give birth).

Interview With Craig Allen Smith (Fa 107), Manuscripts & Folklife Archives

Folklife Archives Oral Histories

Transcription of interview with Craig Allen Smith conducted by Jeffrey Brian Hagan on 3 November 1989. From folk studies student project titled “Farming Folklore,” concerning farming traditions and practices in Kentucky.

Rock Lobster Industry Advisory Committee Report To The Hon Minister For Fisheries., Fisheries Dept. Of Western Australia

Fisheries Management Papers

To ensure full consultation with members of the fishing industry, the Committee arranged a series of meetings at the main coastal centres after the close of the fishing season. Each meeting followed the same format which allowed matters related to research and management to be discussed. After these meetings the Committee met to formulate its advice to the Minister on the matters raised during the Coastal Tour and from Committee discussions.

Wpa News 26 (1989), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (November 1989), number 26

Published by the World Pheasant Association

Interview With William M. Cecil (Fa 107), Manuscripts & Folklife Archives

Folklife Archives Oral Histories

Transcription of interview with William M. Cecil conducted by Jeffrey Brian Hagan on 1 November 1989. From folk studies student project titled “Farming Folklore,” concerning farming traditions and practices in Kentucky.