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Age, Growth, And Food Habits Of Johnny, Slenderhead And Blacksided Darters Of Boone County, Lowa, James R. Karr
Age, Growth, And Food Habits Of Johnny, Slenderhead And Blacksided Darters Of Boone County, Lowa, James R. Karr
Proceedings of the Iowa Academy of Science
Age, growth, and food habit studies were done on 61 johnny darters, Etheostoma nigrum, 25 slenderhead darters, Percina phoxocephala, and 18 blacksided darters, P. maculata, taken from the Des Moines River, Boone County, Iowa, during the summer 1962. The growth rate of blacksided darter is faster than either of the other two species. Coefficients of condition, length-weight relationships, and body-scale relationships are similar for the three species. The food of all species is over 90% insect. Leeches and tapeworms parasitized the darters.
Lakeside Laboratory Publications 1909-1961, Martin J. Ulmer
Lakeside Laboratory Publications 1909-1961, Martin J. Ulmer
Proceedings of the Iowa Academy of Science
Attempted is a comprehensive listing of more than 200 papers published as a result of studies conducted wholly or in part at the Iowa Lakeside Laboratory, Lake Okoboji, since its founding in 1909 to the present.
Notes On Iowa Diatoms Ii. Species Distribution In A Subaerial Habitat, Eugene F. Stoermer
Notes On Iowa Diatoms Ii. Species Distribution In A Subaerial Habitat, Eugene F. Stoermer
Proceedings of the Iowa Academy of Science
A collection made near the base of a small waterfall in Marion County, Iowa, was examined. A total of 22, - 294, specimens of diatoms were studied and found to include 40 species and varieties representing 13 genera. It was found that approximately half of the entities determined are well represented in the local aquatic flora. The remainder comprise entities described by previous authors as being characteristically found in northern, alpine, or aerial environments. In the case of five of the entities no specific determination was made.
Life History Of The Creek Chub, With Emphasis On Growth, James J. Dinsmore
Life History Of The Creek Chub, With Emphasis On Growth, James J. Dinsmore
Proceedings of the Iowa Academy of Science
Age and growth of 151 creek chubs, Semotilus atromaculatus, from the Des Moines River in 1961 were determined by scale and length-frequency methods. The body scale relationship had an intercept of 8.3 millimeters in total length. Chubs reached total lengths of 58, 95, and 128 millimeters at the formation of the first, second and third annuli respectively. Annuli form in May. Weight increased approximately as the cube of the length. The most important food items were plant material, aquatic insects, and, in the case of larger chubs, fish. The chubs were found adaptable in their food habits with the changing …
Teaching Field Botany From Canoes In Southern Canada, Normal H. Russell
Teaching Field Botany From Canoes In Southern Canada, Normal H. Russell
Proceedings of the Iowa Academy of Science
During late August and early September, 1958, the author and Mr. Irwin L. Simone, instructor in physical education at Grinnell College, took ten undergraduate students on a 23-day canoeing trip through the Lac La Croix area in southern Ontario. The purpose of the trip was to survey the plant life of the area from both taxonomic and ecologic viewpoints, and three semester credits in biology were given by Grinnell College for the course. The preparations necessary and the journey itself are described. In addition, the teaching techniques are dealt with.
The Arthropod Soil Fauna Of A Tall Grass Prairie And Adjoining Pasture, T. Edwin Rogers
The Arthropod Soil Fauna Of A Tall Grass Prairie And Adjoining Pasture, T. Edwin Rogers
Proceedings of the Iowa Academy of Science
Soils of a native tall grass prairie and an adjoining grazed pasture in central Oklahoma were studied in an effort to determine some of the major groups of Arthopoda represented in the microfauna, and to see what effect, if any, moderate grazing had upon the animals present. During a period of 12 months, 132 cylindrical samples of soil approximately 3 inches deep and 1.6 inches in diameter were taken. Half came from each area. Animals were separated from the soil by the use of Tullgren funnels. Soil temperatures, moisture content, and volume weight of samples were recorded. From the prairie …
Notes On The Mites Of An Iowa Cave, Michael T. Irvin
Notes On The Mites Of An Iowa Cave, Michael T. Irvin
Proceedings of the Iowa Academy of Science
An investigation was made of some of the environmental factors which are most important in determining the distribution of Acarina in caves. Because of the relative stability of the environment, Bogus Cave, Jones County, Iowa, was selected for the study. A moistened camel's hair brush, an aspirator, and the flotation method were used to collect specimens. Three families of mites (Eupodidae, Ascaidae, and Belbidae) were found; none were troglobites. The data indicate that the mites in Bogus Cave are limited to areas of constant humidity and temperature, a good organic soil cover, relatively small soil particles (100μ to 150μ), and …
Midwestern Population Studies Of Viola Papilionacea Pursh, Norman H. Russell, Jeanette Graham
Midwestern Population Studies Of Viola Papilionacea Pursh, Norman H. Russell, Jeanette Graham
Proceedings of the Iowa Academy of Science
Since about 1900 nearly every taxonomist concerned with the violets nas referred to Viola papilionacea Pursh as the "common blue violet". Generally speaking, the blue violets of towns and cities especially have been referred to this species. In the major herbaria, the folders containing specimens labeled Viola papilionacea are frequently much larger than those for any other species of the genus. Its habitat has been reported to be "near dwellings", "roadsides", "dooryards", and "common in moist fields". Its range is reported to be "Mass. to Minn., s. to Ga. and Okla.", and it has been reported from other places well …
Age And Growth Of River Carpsucker In Des Moines River, Iowa, Marvin Buchholz
Age And Growth Of River Carpsucker In Des Moines River, Iowa, Marvin Buchholz
Proceedings of the Iowa Academy of Science
Although the northern river carpsucker, Carpiodes carpio carpio (Rafmesque), is one of the more abundant species of fish in the Des Moines River, it is not a well known fish. Few laymen are acquainted with it. Precise information on its life history is limited, and its ecological role has not been determined. The river carpsucker is rarely utilized by commercial or sport fishermen and for this reason is usually classified as a rough fish. A few carpsuckers enter the commercial fishery of the Mississippi River (Barnickol and Starrett, 1951) . Some are taken by sport fishermen using extra small hooks …
Some Ecological Notes On The Alpine Tundra In The Area Of The Juneau Ice Field, Richard T. Ward
Some Ecological Notes On The Alpine Tundra In The Area Of The Juneau Ice Field, Richard T. Ward
Proceedings of the Iowa Academy of Science
During the summer of 1949 an introductory study of the vegetation of nunataks and peripheral tundra areas of the Juneau Ice Field was made. The field work constituted a part of the Juneau Ice Field Research Project, which in addition to ecology includes investigations in the fields of geology, glaciology, meteorology, seismology, and cartography. Except for a small plant collection made by a reconnaissance party in the previous summer, the vegetation of this ice field was virtually unknown, as were in fact the other scientific aspects. The expedition of 1949 was the first group to spend an entire summer on …
Natural Succession In Planted Conifer Forests In Eastern New York, Norman H. Russel
Natural Succession In Planted Conifer Forests In Eastern New York, Norman H. Russel
Proceedings of the Iowa Academy of Science
During the summer of 1954 the author was privileged to conduct floristic and ecological studies on the Edmund Niles Huyck Preserve, located near Rensselaerville, in Albany County, New York. This Preserve is about 470 acres in size and centers about two bodies of water. The larger is called Lake Myosotis, after the wild forget-me-not, Myosotis laxa Lehm, which is abundant along its margin. The Preserve was established in 1931, in memory of Edmund Niles Huyck, by his widow and friends, and the majority of it has been under strict and complete protection from disturbance since that time. Parts of the …
Observations On Eimeria From Ambystoma Tigrinum, With Descriptions Of Four New Species, L. H. Saxe
Observations On Eimeria From Ambystoma Tigrinum, With Descriptions Of Four New Species, L. H. Saxe
Proceedings of the Iowa Academy of Science
There appear to be only three records of coccidia of the genus Ezmeria from North American Amphibia. Rankin (1937) reported Eimeria ranarum from Ambystoma opacum. Walton (personal communication) says that his record (1942) of Eimeria from Ambystoma is based upon a letter from Dr. Harold Kirby who stated that he had seen E. ranarum from A. opacum. Doran (1953) reported Eimeria grobbeni from Taricha torosa. The author, on several occasions, has noted the presence of coccidian oocysts in the rectal contents of salamanders. Four species of Eimeria have been recognized in material from Ambystoma tigrinum (Green) and will be described …
Bryophytes Of South-Central Colorado. Part 1, James H. Craft, Irene H. Craft
Bryophytes Of South-Central Colorado. Part 1, James H. Craft, Irene H. Craft
Proceedings of the Iowa Academy of Science
Prominent among the names of the many bryologists who have collected in Colorado are those of Leo Lesquereux, T. S. Brandegee, T. C. Porter, and A. J. Grout. Their findings are discussed by Dr. Geneva Sayre in an unpublished dissertation on the mosses of Colorado, a work completed in 1938 (2). She points out that, with the exception of Brandegee's collections in southwest Colorado, collections of southern Colorado mosses are either meagre or lacking. The largest reported collection of recent date from southern Colorado is that of Dr. Belle K. Stewart who collected fourteen species in the Creede Valley incident …
An Annotated List Of The Lygaeidae Of Iowa And Illinois (Hemiptera: Heteroptera), James A. Slater
An Annotated List Of The Lygaeidae Of Iowa And Illinois (Hemiptera: Heteroptera), James A. Slater
Proceedings of the Iowa Academy of Science
In this paper an attempt has been made to present an adequate list of Lygaeidae found in Iowa and Illinois, and to indicate what is known of the intrastate distributions of the various species. This paper is limited to geographic considerations and, in this sense, assumes the character of a "local list"' as no biological or ecological considerations are discussed. It is felt that our knowledge of the Nearctic Lygaeidae has reached a degree of maturity where knowledge of state and lesser faunal areas is essential to encourage the badly needed bionomic work that should develop with a relatively stable …
Preliminary Report On The Distribution Of Bottom Organisms In West Lake Okoboji, Iowa, John E. Bardach, John Morrill, Frank Gambony
Preliminary Report On The Distribution Of Bottom Organisms In West Lake Okoboji, Iowa, John E. Bardach, John Morrill, Frank Gambony
Proceedings of the Iowa Academy of Science
"Little is known of the bottom fauna of the locality." This passage is taken from an Extension Bulletin of the State University of Iowa which describes the Iowa Lakeside Laboratory on West Lake Okoboji and its facilities for biological investigations. It should be stressed at the outse.t that there are few lakes which do not share with Okoboji this relatively unexplored state of their bottom biota. A study was begun in July 1950 with a view to eventually answering the following questions: 1. What is the distribution of macroscopic bottom dwelling animals in the lake? 2. Does this distribution follow …
The Iowa Cooperative Fisheries Research Program, Kenneth D. Carlander
The Iowa Cooperative Fisheries Research Program, Kenneth D. Carlander
Proceedings of the Iowa Academy of Science
The Iowa State Conservation Commission and Iowa State College cooperate in a program of research, extension and education in the field of fishery management. This cooperative program, initiated in 1941, was patterned after that of the earlier established Cooperative Wildlife Research Unit (Scott, 1939). The research work is carried on by the permanent staff at the college and by graduate students some of whom are on fellowship appointments. The problems being investigated include those deemed most important in the management of Iowa's fishery resources and include work on streams, natural lakes, reservoirs, artificial inpoundments, and farm ponds.
A Comparison Of Leaves Of Quercus Coccinea Muench. And Betula Lenta L. From Heath Bald And Mesphytic Ravine Habitats, Robert C. Miller
A Comparison Of Leaves Of Quercus Coccinea Muench. And Betula Lenta L. From Heath Bald And Mesphytic Ravine Habitats, Robert C. Miller
Proceedings of the Iowa Academy of Science
An ecological study of the leaves of Quercus coccinea Muench. and Betula lenta L. was undertaken by the writer during the summer of 1945 at the Mountain Lake Biological Station of the University of Virginia in Giles County, Virginia. The writer wishes to express his appreciation to Dr. I. F. Lewis, Director of the Mountain Lake Biological Station, and Mr. Ruskin S. Freer of the Department of Biology of Lynchburg College, Lynchburg, Virginia, for their invaluable aid in the pursuance of this problem.
Life Histories And Ecology Of Iowa Midges (Tendipedidae). I. The Genus Tanytarsus, U. A. Hauber
Life Histories And Ecology Of Iowa Midges (Tendipedidae). I. The Genus Tanytarsus, U. A. Hauber
Proceedings of the Iowa Academy of Science
As defined by Edwards (1929) the genus Tanytarsus differs from Chironomus (Tendipes) in its hairy wings, bare squamae, and the horizontal or indistinct radio-medial cross vein (r-m). However, the status of the genus is very unsatisfactory and a revision of the group and its related genera will probably result in placing the species here described into another genus, probably into more than one genus. Moreover, the group has had little attention in this country and there are few types available for comparison. Under the circumstances any attempt to classify specimens is done subject to future corrections. The assignment of the …
Index To Volume 1-50 (1887-1944), Proceedings Of The Iowa Academy Of Science
Index To Volume 1-50 (1887-1944), Proceedings Of The Iowa Academy Of Science
Proceedings of the Iowa Academy of Science
No abstract provided.
In Memoriam: Elmer Darwin Ball; James B. Craney; George Frederick Kay; Frank Leverett; Benjamin Leroy Miller; Herman A. Mueller; Olaf Martin Oleson; Lemuel Charles Raiford; Henry Lewis Rietz; Althea Rosina Sherman; James Timothy Whiting, Carl J. Drake, John A. Theobald, A. C. Trowbridge, A. H. Fretz, Robert B. Wylie, Ada Hayden, Perry A. Bond
In Memoriam: Elmer Darwin Ball; James B. Craney; George Frederick Kay; Frank Leverett; Benjamin Leroy Miller; Herman A. Mueller; Olaf Martin Oleson; Lemuel Charles Raiford; Henry Lewis Rietz; Althea Rosina Sherman; James Timothy Whiting, Carl J. Drake, John A. Theobald, A. C. Trowbridge, A. H. Fretz, Robert B. Wylie, Ada Hayden, Perry A. Bond
Proceedings of the Iowa Academy of Science
No abstract provided.
Present Status And Outlook Of Conservation In Iowa: State Parks And Preserves; Birds And Mammals; Fisheries; Antiquities; Water Supply; Forests; Soil And Water Conservation: Report Of The Conservation Committee Of The Iowa Academy Of Science
Proceedings of the Iowa Academy of Science
No abstract provided.
The Radiometer: A Simple Instrument For The Measurement Of Radiant Energy In Field Studies, J. M. Aikman
The Radiometer: A Simple Instrument For The Measurement Of Radiant Energy In Field Studies, J. M. Aikman
Proceedings of the Iowa Academy of Science
During the past decade important advances have been made in the measurement of light and radiant energy. Although previous to this time emphasis was placed on the refinement of instruments for measuring light, during this period emphasis has been placed on the measurement of radiant energy since plants are affected by rays both longer and shorter than those of the visible spectrum.
Research Vs. Conservation, W. W. Aitken
Research Vs. Conservation, W. W. Aitken
Proceedings of the Iowa Academy of Science
Conservation defined, means to supervise and protect. The supervising and protecting of wild life requires a knowledge of life history, habits, and daily activity of the particular objects under observation. This information is only gained after study and research into all factors effecting the life of plant and animal.
In Memoriam: Bird Thomas Baldwin; J. M. Fulton; John Littleton Tilton; Flora May Tuttle; M. F. Arey; Abram Owen Thomas; Joseph A. Treganza; Louis H. Pammel, George D. Stoddard, Charles Keyes, Henry S. Conrad, E. J. Cable, James H. Lees, B. Shimek
In Memoriam: Bird Thomas Baldwin; J. M. Fulton; John Littleton Tilton; Flora May Tuttle; M. F. Arey; Abram Owen Thomas; Joseph A. Treganza; Louis H. Pammel, George D. Stoddard, Charles Keyes, Henry S. Conrad, E. J. Cable, James H. Lees, B. Shimek
Proceedings of the Iowa Academy of Science
No abstract provided.
Additional Notes On Iowa Mosses, Betty Blagg
Additional Notes On Iowa Mosses, Betty Blagg
Proceedings of the Iowa Academy of Science
During the year 1928-29, I have done no concentrated work on the Iowa mosses. A few interesting specimens have been picked up, however, in the little time that it was possible to devote to the work. Collections have been started in the vicinity of Ames, a part of the state in which almost no collecting has been reported. The Ledges State Park at Boone promises interesting possibilities, since the geological formations are quite different from those of the rest of the state. Rhodobryum roseum (Weis.) Limpr. was found fruiting. Dr. A. J. Grout says of this species, "Although common, in …
Fish Collected In The Vicinity Of Vinton, Iowa, David T. Jones
Fish Collected In The Vicinity Of Vinton, Iowa, David T. Jones
Proceedings of the Iowa Academy of Science
It is hoped that this article may be but a start toward supplying definite records on what fish exist today in our Iowa streams. Our old records for the state are good, but we need recent records on which to base our ecological studies and to establish a sound program of conservation. Some neighboring states have been very active in ichthyological surveys, which have to a great extent made such work here seem less urgent. Neither the excellency of work done thirty-five or forty years ago nor the completeness of work done recently near our borders affords us an excuse …
A Second Intensive Ornithological Survey Of A Typical Square Mile Of Cultivated Prairie, After A Ten Year Interval, Chas. J. Spiker
A Second Intensive Ornithological Survey Of A Typical Square Mile Of Cultivated Prairie, After A Ten Year Interval, Chas. J. Spiker
Proceedings of the Iowa Academy of Science
This paper presents a report of a second intensive ornithological survey over a square mile of cultivated prairie. The first survey was made on July 25 and 26, 1916, by Dr. Arthur R. Abel, who was at that time a student in Morningside College, Sioux City, Iowa. The report of this survey was published in the Proceedings of the Iowa Academy of Science, Vol. XXVII, 1920, pages 385 to 393 inclusive. It was thought that a repeated survey over the same ground after an interval of ten years, would be both interesting and important. It was not possible for the …
A New Apparatus For Measuring Deep Water Temperatures, Frank A. Stromsten
A New Apparatus For Measuring Deep Water Temperatures, Frank A. Stromsten
Proceedings of the Iowa Academy of Science
There has always been a certain fascination in the study of things related to great bodies of water. The curiosity to know what is going on beneath the turbulent waves when the storm is raging and what the conditions are beneath the smooth surface when all is quiet has ever challenged our spirit of investigation. What are the environmental conditions of aquatic life has given considerable impetus to the physical and chemical phases of limnology. Temperature seems so closely interwoven into the environmental complex that careful and exact measurement of this factor is one of the first things to be …
Food Of The Short-Nosed Gar-Pike (Lepidosteus Platystomus) In Lake Okoboji, Iowa, George E. Potter
Food Of The Short-Nosed Gar-Pike (Lepidosteus Platystomus) In Lake Okoboji, Iowa, George E. Potter
Proceedings of the Iowa Academy of Science
The food habits of any animal have a distinct bearing upon its life and so it is with the Gar-pike. In order to ascertain the kind and amount of food taken by this fish, many collections were made, stomachs dissected, the contents carefully examined and preserved.
The Relation Of The Smaller Forest Areas In Non-Forested Regions To Evaporation And Movement Of Soil Water, Irwin T. Bode
The Relation Of The Smaller Forest Areas In Non-Forested Regions To Evaporation And Movement Of Soil Water, Irwin T. Bode
Proceedings of the Iowa Academy of Science
The importance of the climatic and edaphic relations of forests has been the basis for wide discussion and study. The scope of this field is shown in a condensed way in a report of the Sub-Committee on Forest Investigations to the Fifth National Conservation Congress, which discusses studies undertaken up to the time of the report (1913) and presents in general results obtained. Recently, Zon, in a paper, "Forests and Water in the Light of Scientific Investigation," has presented a much more comprehensive view of the subject and the literature. He has attempted to bring together "all the well-established scientific …