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Addendum
Iowa Science Teachers Journal
The following addendum should accompany the Rare and Uncommon Reptiles and Amphibians of Iowa, Special Issue of the Iowa Science Teachers Journal (1978), Fig. 7, page 5.
Web Biology: Philosophy And Content, Shirley Gansen, Duane Jasper, Lois Wagner
Web Biology: Philosophy And Content, Shirley Gansen, Duane Jasper, Lois Wagner
Iowa Science Teachers Journal
Six years ago, Wahlert High School became a pilot school for the use of SPBE (Self-Paced Biology Experiences), an individualized biology course written by James Kelly of the Malcolm Price Laboratory School at the University of Northern Iowa. Through its implementation, the value of individualized instruction was recognized.
A Study Of Environmental Education In Iowa High School Home Economics Programs, Susan Rebecca Sherman Differding
A Study Of Environmental Education In Iowa High School Home Economics Programs, Susan Rebecca Sherman Differding
Dissertations and Theses @ UNI
This descriptive study indicates Iowa public high school vocational home economics teachers' responses regarding 1) proposed programs in environmental education directly related to the respondent's specific school, 2) their school system's proposed home economics programs incorporating environmental education, 3) environmental concepts presently being taught in home economics, 4) program suggestions in environmental education, 5) desirable home economics related subject matter areas for incorporating environmental education, 6) environmental education concepts needed in the home economics curriculum, 7) their formal training in environmentally oriented subjects, and 8) interest in participating in environmentally oriented courses or workshops. The questionnaire covered these response areas …
Iowa Environmental Education Needs Assessment: An Evaluation By Teachers And Administrators In Grades K-12, Debra Elaine Mcrae
Iowa Environmental Education Needs Assessment: An Evaluation By Teachers And Administrators In Grades K-12, Debra Elaine Mcrae
Dissertations and Theses @ UNI
An environmental education needs assessment of the Iowa public schools (K-12) was conducted during the spring of 1976. The assessment was conducted via mailed questionnaire to a randomly selected sample of 2128 teachers, principals and superintendents. The proportionately stratified sample was divided into eight sub-groups1 elementary teachers, elementary principals, secondary science teachers, secondary social science teachers, secondary other teachers (all other types of secondary teachers), secondary principals, superintendents and other administrators. The response rate was 53.8 percent. Responses were made on modified Likert scales. Statistical Package for the Social Sciences was used for data recording and computer analysis. Information obtained …
Abstracts Of Papers, Iowa Academy Of Science [88th Meeting], April 10, 1976, Iowa Academy Of Science
Abstracts Of Papers, Iowa Academy Of Science [88th Meeting], April 10, 1976, Iowa Academy Of Science
Iowa Academy of Science Documents
Presentation abstracts from the annual meeting of the Iowa Academy of Science
Studies On Silica-Scaled Chrysophytes From Iowa, James L. Wee, John D. Dodd, Daniele Wujek
Studies On Silica-Scaled Chrysophytes From Iowa, James L. Wee, John D. Dodd, Daniele Wujek
Proceedings of the Iowa Academy of Science
References in the literature to the silica-scaled chrysophytes of Iowa are few and, since the advent of the electron microscope, identifications of taxa in this group are no longer considered valid without accompanying electron micrographs. Using scanning electron microscopy for critical identifications, eight taxa genera of the Synuraceae are reported here including the first known report of the genus Paraphysomonas from Iowa. From the other two genera, Mallomonas and Synura, only one of the taxa in this paper, Mallomonas pseudocoronata, has been reported from Iowa previously. Mallomonas acaroides var. striatula, M. tonsurata, M. tonsurata var. alpina, M. teilingii, M. pseudocorcnata, …
The Pteridophyte Flora Of Iowa, James H. Peck
The Pteridophyte Flora Of Iowa, James H. Peck
Proceedings of the Iowa Academy of Science
A floristic study of Iowa pteridophytes is presented based upon extensive herbarium and field work. Historical notes are included on the principal collectors, along with a summary of the accumulation of floristic records. Taxonomic notes are presented on seven taxa new to the state and on six excluded taxa. A flora of 57 species and 3 hybrids is recognized. Floristic notes are presented on the status of the state flora and county floras. The addition of 402 new county records increases the total of county occurrences by 47%. Statements of habitat and distribution are presented with dot maps for the …
Abstracts Of Papers Scheduled For Presentation At The 87th Session Of The Iowa Academy Of Science, April 19, 1975, Iowa Academy Of Science
Abstracts Of Papers Scheduled For Presentation At The 87th Session Of The Iowa Academy Of Science, April 19, 1975, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
The 87th Session Of The Iowa Academy Of Science, April 17-19, 1975, Iowa Academy Of Science
The 87th Session Of The Iowa Academy Of Science, April 17-19, 1975, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
The History Of Plant Ecology In Iowa As Reflected In The Proceedings Of The Iowa Academy Of Science, A. G. Van Der Valk
The History Of Plant Ecology In Iowa As Reflected In The Proceedings Of The Iowa Academy Of Science, A. G. Van Der Valk
Proceedings of the Iowa Academy of Science
All plant ecology papers published in the Proceedings from 1887 to 1973 were identified. On the average only 1.4 papers were published per year. An examination of the number of papers published in successive five-year intervals indicates that there were three distinct periods in the history of plant ecology in Iowa with three individuals dominating each period: 1887-1931 - L. H. Pammel, B. Shimek, and Ada Hayden; 1932-1951 - H. S. Conard, J. M. Aikman, and Ada Hayden; 1952-1971 - J. M. Aikman, R. F. Thorne, and R. Q. Landers. There have been very few active plant ecologists in Iowa, …
Fern Reproduction At Woodman Hollow, Central Iowa: Preliminary Observations And A Consideration Of The Feasibility Of Studying Fern Reproductive Biology In Nature, Donald R. Farrar, Robert D. Gooch
Fern Reproduction At Woodman Hollow, Central Iowa: Preliminary Observations And A Consideration Of The Feasibility Of Studying Fern Reproductive Biology In Nature, Donald R. Farrar, Robert D. Gooch
Proceedings of the Iowa Academy of Science
Field observations of spore availability, gametophyte establishment and survival, and sporophyte production were made over a one-year period. Maximum spore release for most species occurred shortly after spore maturation in mid to late summer, but some spores remained on sporophyte fronds through the winter and were available for germination the following spring. Gametophytes of Cystopteris fragilis, Woodsia obtusa and Adiantum pedatum became established in late summer and fall. Production of sporophytes occurred both in fall and in the following spring. Both gametophytes and juvenile sporophytes survived the winter in relatively unchanged condition. Results indicate that it is feasible and important …
Integrating Ecology Into The Industrial Arts Curriculum, Howard L. Craven
Integrating Ecology Into The Industrial Arts Curriculum, Howard L. Craven
Graduate Research Papers
The problem was to determine how a junior high industrial arts instructor can teach about conservation and pollution without major changes in the present curriculum or without major cost.
How Can I Make The Students See The Relevance Of This Idea? Why Do They Want? How Can I Make My Subject Come Alive?, Robert Hammon
How Can I Make The Students See The Relevance Of This Idea? Why Do They Want? How Can I Make My Subject Come Alive?, Robert Hammon
Iowa Science Teachers Journal
Working from the belief that the classroom atmosphere with its four walls is stifling to student creativity and curiosity, these instructors designed a program which would be basically an ecological study, with emphasis in three areas: social science, literature/communication, and natural sciences.
Biology Convention Offers Something For Everyone
Biology Convention Offers Something For Everyone
Iowa Science Teachers Journal
"Competitive Ideas in Biology" marks the theme of the 1973 National Association of Biology Teachers Convention to be held October 11-14 at the Chase Park Plaza Hotel in St. Louis.
Population Fluctuations Of Some Plant Parasitic Nematodes In The Kalsow Prairie, Iowa, D. P. Schmitt
Population Fluctuations Of Some Plant Parasitic Nematodes In The Kalsow Prairie, Iowa, D. P. Schmitt
Proceedings of the Iowa Academy of Science
The Kalsow Prairie is a 160 acre native tract located in the Clarion-Nicollet-Webster soil association in Pocahontas County, Iowa. It is composed of clay-loam to silty-clay-loam soil that ranged from pH 5.5 to 6.7, except for a soil drift that was 7.6, among the 15 test sites. The organic matter content was 8.5 to 12.9%. Population density changes of selected plant parasitic nematodes were investigated at four bimonthly intervals beginning in February 1968. The dominant nematodes in potholes were Helicotylenchus hydrophilus, Xiphinema chambersi, Tetylenchus;octus, and an undescribed Tylenchorhynchus species. The common nematodes in the drier sites were Tylenchorhynchus maximus, T. …
Responses Of Species In Kalsow Prairie, Iowa, To An April Fire, Mary S. Richards, R. Q. Landers
Responses Of Species In Kalsow Prairie, Iowa, To An April Fire, Mary S. Richards, R. Q. Landers
Proceedings of the Iowa Academy of Science
Selected prairie species were observed during the first growing season following a prescribed burn on Kalsow Prairie, a mesic tall grass prairie in central Iowa. Changes in dry weight, vegetative cover, and flowering response were measured on burned, unburned and mowed areas. Significant changes were recorded for many species following the burn ranging from a flowering response of prairie dropseed (Sporobolus heterolepis) on burned areas 30 times that on unburned areas to a slight reduction in flowering of bluegrass (Poa pratensis) on burned areas.
Summer Range And Habitat Preferences Of Bobwhite Quail On A Southern Iowa State Game Area, Lloyd A. Crim, William K. Seitz
Summer Range And Habitat Preferences Of Bobwhite Quail On A Southern Iowa State Game Area, Lloyd A. Crim, William K. Seitz
Proceedings of the Iowa Academy of Science
In June through Aug. 1971, 13 bobwhite quail (9 cocks, 4 hens) were tracked by using radio telemetry techniques to determine summer range and habitat preferences. Of the 13 birds tracked on and near the Mt. Ayr Game Management Area, 7 provided movement data for a period of greater than 4 days. Five of the 7 also provided useful information on habitat preferences. Average lineal daily movement was 442 yards. Average daily range dimensions were 248 (length of range) x 78 (width) yards, and average total range dimensions were 805 x 518 yards. Grassy upland areas were the most prominent …
Some Diatoms In Lacustrine Sediments Of Pillsbury And Sylvan Lake Beds In Northwest Iowa, James J. Hungerford
Some Diatoms In Lacustrine Sediments Of Pillsbury And Sylvan Lake Beds In Northwest Iowa, James J. Hungerford
Proceedings of the Iowa Academy of Science
Diatom populations in two cores of lake sediments from Northwest Iowa have been analyzed as part of an investigation into the history of postglacial sediments in this region. The three member strata sequence of sediments indicate lacustrine diatoms were deposited in the upper two members. Diatoms and macroscopic organisms are scarce to non-existent in the deepest member. Evidence indicates that the level where diatom populations were first established represents the original bottom of the lake. Pollens, particularly spruce pollen, found immediately below the upper two members were possibly blown in and mixed with sediments from the receding glacier.
Growth Of The Fathead Minnow (Pimephales Promelas) In Tertiary Treatment Ponds, John L. Konefes, Roger W. Bachmann
Growth Of The Fathead Minnow (Pimephales Promelas) In Tertiary Treatment Ponds, John L. Konefes, Roger W. Bachmann
Proceedings of the Iowa Academy of Science
A series of experimental ponds, utilizing treated sewage effluent as a water source, have been constructed at the Ames Water Pollution Control Plant. Fathead minnow fry were introduced into the ponds in the summer of 1969 and observations were made on their growth rates, reproduction, and food habits during the summer months. Growth was comparable to that previously reported for hatchery ponds. The fish matured by mid-summer and successfully produced a second crop of fry. The use of tertiary ponds for fish production seems to be a useful approach to the conservation of natural resources.
Iowa Junior Academy Of Science: The Thirty-Seventh Convention, April 18-19, 1969, Iowa Academy Of Science
Iowa Junior Academy Of Science: The Thirty-Seventh Convention, April 18-19, 1969, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Planktonic Diatoms From The Coralville Reservoir, Donald J. Schmidt, Everett Fee
Planktonic Diatoms From The Coralville Reservoir, Donald J. Schmidt, Everett Fee
Proceedings of the Iowa Academy of Science
A list of sixty-two planktonic diatom species is presented. These diatoms were collected from the Coralville Reservoir, a variable level flood control reservoir, located in east central Iowa. The collections were made during a sixteen-month, ecological study conducted during 1965 and 1966.
Helminth Parasites Of Rails And Host-Parasite Relationships Of The Trematode Protechinostoma Mucronisertulatum, Bryce C. Redington, Martin J. Ulmer
Helminth Parasites Of Rails And Host-Parasite Relationships Of The Trematode Protechinostoma Mucronisertulatum, Bryce C. Redington, Martin J. Ulmer
Proceedings of the Iowa Academy of Science
In a survey of 15 soras (Porzana carolina) and 31 Virginia rails (Rallus limicola) collected in Iowa during May-September 1963, Protechinostoma mucronisertulatum was the most frequently encountered trematode of the sora. It does not occur in the Virginia rail. Experimentally-developed metacercariae and adults were obtained and host-parasite relationships studied with special reference to annual incidence of infection in snails. Additional helminths of the sora and the Virginia rail include several representing new host records.
The Postglacial Phytogeography Of The Iowan Lobe, L. J. Eilers
The Postglacial Phytogeography Of The Iowan Lobe, L. J. Eilers
Proceedings of the Iowa Academy of Science
The Iowan lobe of the Wisconsin glaciation is located in northeastern Iowa. Evidence is summarized which pertains to the migrations of the regional vegetation following the Wisconsin glaciations. The most recent climatic fluctuation to influence the distribution of the present flora was the Hypsithermal interval. The present distributions of several species are discussed in relation to the postglacial history of the flora. Eleven distribution maps of representative species are included. Most of the distribution patterns can be attributed to factors other than continuing postglacial migration. It appears that these plant distributions are primarily a function of the distribution of available …
Distribution Patterns Of Eastern Red-Cedar Juniperus Virginiana L. In Henry County, Iowa, Dolores Irma Graf, Roger Q. Landers, R. William Poulter
Distribution Patterns Of Eastern Red-Cedar Juniperus Virginiana L. In Henry County, Iowa, Dolores Irma Graf, Roger Q. Landers, R. William Poulter
Proceedings of the Iowa Academy of Science
The distribution patterns of Eastern red-cedar were studied in Henry County, Iowa, in a general survey and also in three intensive study areas in Marion, Jackson, and Wayne townships. It was found that the abundant seed sources of red-cedar and the predominantly rolling land in Henry County make extensive establishment of red-cedars possible. In the northern tier of townships red-cedars are restricted to fence lines and roadsides whereas in the hilly southern three tiers of townships they are much more abundant.
Preliminary Survey Of The Algae Of Lake Ahquabi, Donald G. Delisle, Dennis H. Takahashi, Steve W. Weeber
Preliminary Survey Of The Algae Of Lake Ahquabi, Donald G. Delisle, Dennis H. Takahashi, Steve W. Weeber
Proceedings of the Iowa Academy of Science
Forty-one genera of algae are reported from Lake Ahquabi, Warren County, Iowa. The most commonly occurring genera are Cladophora, Spirogyra, Hydrodictyon, Microcystis, Oscillatoria and Aphanizomenon. The latter three contribute to extensive blooms on the lake in late summer and fall.
Life History And Ecology Of Western Blacknose Dace, Boone County, Iowa, 1963-1964, Richard L. Noble
Life History And Ecology Of Western Blacknose Dace, Boone County, Iowa, 1963-1964, Richard L. Noble
Proceedings of the Iowa Academy of Science
A life history and ecology study of the western blacknose dace, Rhinichthys atratulus meleagris (Agassiz), was made on Elkhorn and Pease creeks, Boone County, Iowa. Total length equals 1.23 standard length; live length equals 1.03 preserved length; and live weight equals 0.90 preserved weight. Dace reached maturity at age II. Spawning occurred from early May through July over gravel. Number of eggs increased with length of females. Scale formation proceeded forward from the caudal peduncle at 16-20 mm standard length. Scale growth was not directly proportional to body growth. Annuli formed between March and May. Fish which lacked scales until …
Spawning Periodicity Of The River Carpsucker, Carpiodes Carpio, David J. Behmer
Spawning Periodicity Of The River Carpsucker, Carpiodes Carpio, David J. Behmer
Proceedings of the Iowa Academy of Science
The sex ratio of river carpsuckers collected from the Des Moines River differed significantly from 1:1, females being most abundant. Spawning had already begun in early June and some fish were found ripe as late as August. No carpsuckers younger than age IV were found mature. All ripening carpsucker ovaries contained a group of eggs that seemed to be degenerating. It is not certain if carpsuckers spawn more than once in a season.
An Ecological Analysis Of Silver Lake Fen I. The Aquatic Metazoan Fauna, Lawrence Eickstaedt
An Ecological Analysis Of Silver Lake Fen I. The Aquatic Metazoan Fauna, Lawrence Eickstaedt
Proceedings of the Iowa Academy of Science
The aquatic metazoan fauna and physicochemical features of the Silver Lake Fen, Dickinson County, Iowa, were investigated. The pools displayed high values of alkalinity, calcium and total hardness, sulfate and dissolved solids; neutral to alkaline conditions; and extreme diurnal variability in dissolved gasses, pH and temperature. Fifty metazoan species have been collected from this unique and rigorous habitat, with nine species being most abundant and widespread. Possible causal factors dealing with population dispersion are discussed.
Food And Growth Of Spottail Shiners And Other Forage Fishes Of Clear Lake, Lowa, Bernard L. Griswold
Food And Growth Of Spottail Shiners And Other Forage Fishes Of Clear Lake, Lowa, Bernard L. Griswold
Proceedings of the Iowa Academy of Science
Collections of spottail shiners, Notropsis hudsonius, and other forage fishes were made by systematic seining in Clear Lake in 1961. Spottails made up 71.6 per cent of all forage species and were collected most frequently in areas of vegetation. Although most spawning occurred in late May and early June, a few spottails apparently spawned in August. Young spottails grew an average of 0.05 millimeters per day which is slower than in warmer years. No parasites of spottails were observed. Tadpole madtoms, Noturus gyrinus, made up 18.4 per cent of all forage species collected, higher than any previous year. All species …
Minnow Population Of Grimes Creek In Relation To Pollution, Earl E. Kelling
Minnow Population Of Grimes Creek In Relation To Pollution, Earl E. Kelling
Proceedings of the Iowa Academy of Science
Weekly minnow collections were made from August 13 to November 26, 1960, at five stations in Grimes Creek. Six major species were identified, counted and measured. The upper region of the creek was abandoned by the minnow population within a few days after pollution from a canning factory at Grimes, Iowa entered the stream. Late spawning species of minnows were unable to spawn successfully, which suggested one mechanism for selective evolution of minnow populations.