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The Iowa Academy Of Science Parish Farm: Its Past, Present And Future - A 25 Year Overview, Harry T. Horner
The Iowa Academy Of Science Parish Farm: Its Past, Present And Future - A 25 Year Overview, Harry T. Horner
Proceedings of the Iowa Academy of Science
This article focuses on the Iowa Academy of Science Parish Farm celebration of its 25th anniversary in 1985 at the Farm. The celebration provided an opportunity to view the progress made in establishing the Farm as a model for both farming and non-farming conservation practices. The celebration also included opportunities to review the history of the Farm, the life of Jessie A. Parish, and the interactions of the Iowa Academy of Science with the Parish Farm management, tenants, and Grundy County Conservation Board. These activities are followed by an in-depth account of the struggles which have occurred within the Board …
Quaternary Biostratigraphy And Paleoecology Of Fossil Mammals From The Loess Hills Region Of Western Iowa, R. Sanders Rhodes Ii, Holmes A. Semken Jr.
Quaternary Biostratigraphy And Paleoecology Of Fossil Mammals From The Loess Hills Region Of Western Iowa, R. Sanders Rhodes Ii, Holmes A. Semken Jr.
Proceedings of the Iowa Academy of Science
For over 115 years the Loess Hills region of western Iowa has furnished the fossils of Ice Age and recent mammals to both amateur and professional paleontologists. The oldest of these fossils (the "Aftonian fauna") predates the last glaciation and predominantly are the remains of large mammals. These sites are poorly understood but probably date from near the Irvingtonian/Rancholabrean boundary at about three quarters of a million years ago. The last glaciation (Wisconsinan) is represented by 3 micromammal-dominated faunas and scattered finds of individual specimens of large mammals. Taken together, these indicate rather open grassland, with scattered boreal forest groves …
Cover - Table Of Contents
Proceedings of the Iowa Academy of Science
No abstract provided.
Improvements In Techniques For Aging Mammals By Dental Cementum Annuli, Douglas S. Allen, Rudy C. Melfi
Improvements In Techniques For Aging Mammals By Dental Cementum Annuli, Douglas S. Allen, Rudy C. Melfi
Proceedings of the Iowa Academy of Science
Several modifications of commonly used histological techniques for the preparation of dental tissues for aging by dental cementum annuli are presented. Improvements in methods of tissue collection, preservation, decalcification, sectioning, and staining permit faster preparation of tissues and produce higher-quality, easily interpreted sections. Possible application of hard-tissue microtomes to sectioning of undecalcified or partially decalcified tissues is also discussed.
Iowa's Self-Trained Paleontologists, Wayne I. Anderson, William M. Furnish
Iowa's Self-Trained Paleontologists, Wayne I. Anderson, William M. Furnish
Proceedings of the Iowa Academy of Science
Charles Wachsmuth (1829- 1896), merchant, Frank Springer (1848-1927), attorney, and Burnice Beane (1879- 1966), farmer, all made significant contributions in their studies of Iowa crinoids, although none of the three completed formal courses in geology or paleontology. Herbert Belanski was a young man, just starting to make major contributions to Iowa geology and paleontology, when he died in 1919. Belanski possessed only a high school degree, but he was recognized as an expert on Devonian paleontology. His collections from the Lime Creek and Shell Rock formations are noteworthy. At the time of his death, Belanski served as a curator in …
Transplanting Iowa Ruffed Grouse, Terry W. Little, Robert Sheets
Transplanting Iowa Ruffed Grouse, Terry W. Little, Robert Sheets
Proceedings of the Iowa Academy of Science
Restoration of ruffed grouse (Bonasa umbellus medianus) to southeast Iowa met with limited success. Grouse populations were maintained at low densities 8 years after release, as evidenced by the numbers of drumming males inhabiting Shimek State Forest. Lack of suitable habitat, created by advanced secondary forest succession on state-owned lands, appeared to be the major limiting factor. Techniques for trapping and holding grouse, and the effects of confinement on grouse condition are described.
A New Nearctic Species Of The Genus Tomocerus (Collembola: Entomobryidae)., K. A. Christiansen
A New Nearctic Species Of The Genus Tomocerus (Collembola: Entomobryidae)., K. A. Christiansen
Proceedings of the Iowa Academy of Science
Tomocerus (Plutomurus) grahami n.sp. is described from Terrero Cave, Terrero, Santa Fe Co., New Mexico. It is the fourth species of the subgenus recorded from North America.
Annual Report Of The Iowa Academy Of Science 1979-80, Robert W. Hanson
Annual Report Of The Iowa Academy Of Science 1979-80, Robert W. Hanson
Proceedings of the Iowa Academy of Science
The 100-year history of the Academy was completed by this author in the fall of 1974 and appeared in the March issue of the Proceedings in 1975 (the "centennial issue"). Since that year the Annual Report has been a running history of the Academy, highlighting the most significant activities of the society and providing for the future a reflection of Academy concerns on a year-to-year basis.
Paleopathology Of An Archaic Ossuary At The Lewis Central School Site In Pottawattamie County, Iowa, Alton K. Fisher
Paleopathology Of An Archaic Ossuary At The Lewis Central School Site In Pottawattamie County, Iowa, Alton K. Fisher
Proceedings of the Iowa Academy of Science
This Late Archaic ossuary, approximately 2800 years old, was discovered near Council Bluffs, Iowa in 1975 during earth moving operations that partially destroyed it. The fragile skeletal remains of 25 individuals ranging from childhood to old age were recovered from the undisturbed portion. Slight to moderate arthritic changes were observed in 4 of the 18 adult skeletons and one example of spondylolysis was encountered. There was no unequivocal evidence of dental caries. Abrasion of the teeth was severe, starting soon after the teeth erupted, and progressing to serious dental complications in one-third of the adults over 20 years of age. …
Five New Species Of Orchesella (Collembola: Entomobryidae), K. A. Christiansen, B. E. Tucker
Five New Species Of Orchesella (Collembola: Entomobryidae), K. A. Christiansen, B. E. Tucker
Proceedings of the Iowa Academy of Science
This paper describes 5 species of the genus Orchesella (Collembola: Entomobryidae) new to science. The chaetotaxy of the abdomen as well as the antennal pin seta are used systematically for the first time in the taxonomy of the genus.
The Iowa Academy Of Science Parish Farm: A Dream About Tomorrow, Harry T. Horner Jr.
The Iowa Academy Of Science Parish Farm: A Dream About Tomorrow, Harry T. Horner Jr.
Proceedings of the Iowa Academy of Science
A gift may be given for many reasons and what the receiver does with it may depend on many things. The Iowa Academy of Science Parish Farm fits this situation and serves as an appropriate focal point to tell a story-a story with a beginning and a developing plot, but one whose ending is yet to be written, if ever. The Farm story represents a relatively small part of the Academy's first hundred years, yet its potential is great for becoming a significant and unique part of the second hundred years. Just like those who may excitedly look back in …
Occurrence Of A Ctenacanthoid Shark Spine From The Upper Devonian Of North Central Iowa, Markes E. Johnson
Occurrence Of A Ctenacanthoid Shark Spine From The Upper Devonian Of North Central Iowa, Markes E. Johnson
Proceedings of the Iowa Academy of Science
Although a diverse, invertebrate fauna is characteristic of the Upper Devonian, Lime Creek Formation, in north central Iowa, fossil fish remains are sparse. A detached and incomplete shark spine with ctenacanthoid features is reported and described. The specimen is the best example of the first occurrences of its kind from Devonian of Iowa. Despite some asymmetry in shape, the spine is interpreted as the cutwater of a dorsal fin. Overall length of the shark is estimated at l-l.5m.
The Rock Creek Ossuary, Iowa (13pm65), Duane C. Anderson, David A. Baerreis
The Rock Creek Ossuary, Iowa (13pm65), Duane C. Anderson, David A. Baerreis
Proceedings of the Iowa Academy of Science
Physical and cultural remains salvaged from the Rock Creek Ossuary (13PM65) by the Northwest Iowa Archaeological Society are described in detail. The site is interpreted as the place of reburial of at least 27 individuals who died over an unspecified period of time. Afflictions including two projectile point injuries are discussed along with an interesting effigy pendant made of catlinite. Mill Creek and/or Great Oasis cultural affiliation is suggested on the basis of cordmarked pottery, numerous Anculosa shell beads and the close proximity of late prehistoric habitation sites.
Survival Of Pen-Reared Ring-Necked Pheasants Released In Southeastern Iowa, John F. May, Arnold O. Haugen
Survival Of Pen-Reared Ring-Necked Pheasants Released In Southeastern Iowa, John F. May, Arnold O. Haugen
Proceedings of the Iowa Academy of Science
A mass release of 2,465 ring-necked pheasants (Phasianus colchicus) at a single site in previously unoccupied range in southeastern Iowa in the fall of 1970 was evaluated by studying mortality, dispersal, reproduction, and population levels. The spring cock population near the release site, sampled by crowing-count surveys, remained at the same level from 1971 to 1972. A 60% drop in the estimated hen population in the same area was accompanied by a drop in winter sex ratios from 4.1 hens/cock in 1971 (first winter after release) to 1.5 in 1972. These changes are thought due to the addition of young-of-the-year …
Faunal Analysis Of The Lane Enclosure, Allamakee County, Iowa, John T. Jenkins, Holmes A. Semken
Faunal Analysis Of The Lane Enclosure, Allamakee County, Iowa, John T. Jenkins, Holmes A. Semken
Proceedings of the Iowa Academy of Science
Vertebrates collected from the Lane Enclosure, an Oneota archaeological site, suggest that climatic conditions changed from prairie producing conditions circa 1465 to a more moist, cooler forest situation between 1620 and 1740. A change of this magnitude would place the Canadian biotic province in northeast Iowa late in the occupation period. The site certainly was occupied in fall and winter, possibly in spring and summer. If the small sample from the five radiocarbon dated storage pits is representative, more fur-bearing animals were trapped after French contact.
Chronic Centrifugation Of Labyrinthectomized, Growing Turtles, John O. Rice, Charles C. Wunder, Friedrich C. Diecke, Mary M. Clark, Randall K. Kesterson, Jackquelyn G. White, Kathy M. Whiteside
Chronic Centrifugation Of Labyrinthectomized, Growing Turtles, John O. Rice, Charles C. Wunder, Friedrich C. Diecke, Mary M. Clark, Randall K. Kesterson, Jackquelyn G. White, Kathy M. Whiteside
Proceedings of the Iowa Academy of Science
A 1-G space-based centrifuge will be necessary before controlled, bio-medical weightlessness experiments can be performed. Some argue that centrifuges of prohibitive dimensions are necessary. Labyrinthectomized, hatchling, Red-Eared Turtles (Pseudemys scripta elegans) which had grown to a length of 45 mm at 5 G's (200 rpm 10 cm radius) displayed the same greater shell height (21.7 ± 0.4 vs, 20.0 ± 0.3 mm at 1 G) that was observed at 5 G's with nonlabyrinthectomized, centrifuged turtles. If other effects of centrifugation can also be attributed to artificial gravity rather than rotation, a space-based centrifuge radius as short as 10 cm (1 …
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 …
Flora Of Island Grove And Adjacent Iowa Prairies Before 1908, B. O. Wolden
Flora Of Island Grove And Adjacent Iowa Prairies Before 1908, B. O. Wolden
Proceedings of the Iowa Academy of Science
A posthumously published description of the landscape and vegetation (537 species) of an area near the northern boundary of Iowa before 1908, before the native plants were seriously reduced by agriculture. The entire herbarium of Mr. Wolden is now at the Iowa State University.
In Memoriam: Mark F. Boyd; Alvin W. Bryan; Mary Anna Rose Callan; Richard D. Campbell; Harry Lewis Foust; Martin L. Grant; Robert L. King; Earl C. Mccracken; Robert D. Michael; Tullio Mordini; Roy Andrew Nelson; Richard D. Nuckolls; Francis E. Ray; Viola Smith; Karl A. Stiles; C. P. Wilsie
Proceedings of the Iowa Academy of Science
No abstract provided.
Artificial Teeth For Permanent Implantation, Theresa Janikowski, Thomas D. Mcgee
Artificial Teeth For Permanent Implantation, Theresa Janikowski, Thomas D. Mcgee
Proceedings of the Iowa Academy of Science
Artificial teeth with a low solubility and with properties similar to natural teeth were produced for implantation tests. The teeth were made from MgAl2O4 spinel and Ca3(PO4)2 Whitlockite to achieve low solubility and non-toxic reaction products. The method of manufacture is described.
The Multistructured Course - A Preliminary Analysis, Paul A. Meglitsch
The Multistructured Course - A Preliminary Analysis, Paul A. Meglitsch
Proceedings of the Iowa Academy of Science
An experimental program in which students may enroll in courses for varying amounts of credit, and select course objectives that are in line with their educational goals is described. A preliminary analysis of the results indicates that students tend strongly to approve of the goals of the experiment, have performed well, and, on the whole, react positively to the educational conditions involved. Early evaluation appears to show that some of the techniques commonly used for introductory courses are applicable, and others not very applicable, to education in courses involving upper division and graduate students.
An Evaluation Of The Dental Annuli Technique For Determining Age Of White-Tailed Deer In Lowa, Arnold J. Sohn
An Evaluation Of The Dental Annuli Technique For Determining Age Of White-Tailed Deer In Lowa, Arnold J. Sohn
Proceedings of the Iowa Academy of Science
During 1965-66, 47 molars from deer (Odocoileus virginianus) of Iowa and adjoining states were sectioned and examined. An exposure of the cementum pad of the first lower molar of each deer was examined to determine if the gross-sectioning dental annuli method is suitable for determining age of Iowa whitetails. Six bison molars and one elk molar were also examined. Variations in both thickness and clarity of annuli in teeth from Iowa deer made accurate age determination impossible in most cases. Teeth from deer from the Upper Peninsula of Michigan showed more distinct annuli in the root pad of the …
A Study Of The Effects Of Hypothermia On The Electrical Activity Of The Hypothalamus In Citellus Tridecemlineatus, James H. Johnson
A Study Of The Effects Of Hypothermia On The Electrical Activity Of The Hypothalamus In Citellus Tridecemlineatus, James H. Johnson
Proceedings of the Iowa Academy of Science
Deep, chronic electrodes were implanted in the anterior and posterior hypothalamus of seven thirteen-lined ground squirrels. The electrical brain activity and heart rate were recorded as the animal's body temperature was decreased by cooling the animal in a refrigerator. Above 23°C body temperature, amplitude varied, but remained near normal. From 23° to 21°C the amplitude dropped sharply, decreasing by almost 50 per cent. Below 21 °C, the amplitude decreased more gradually. Detectable but not easily measurable activity was recorded at 11 °C. Frequency showed an initial rise, then decreased between 22° and 26°C, then increased again through 16°C. Heart rate …
A Multiple Point Recorder For Small Animal Locomotor Activity, Harold W. Shipton, John W. Emde, G. Edgar Folk Jr.
A Multiple Point Recorder For Small Animal Locomotor Activity, Harold W. Shipton, John W. Emde, G. Edgar Folk Jr.
Proceedings of the Iowa Academy of Science
This recorder is intended to simplify the assessment of data gathered from photoelectric actometers registering total locomotor movements. The information is presented automatically in two forms: (1) a curve of total activity over a 24 hour period, (2) a bar graph of the activity in each 30 minute time interval. A further trace is used to enable the time of onset of bursts of activity to be judged with reasonable accuracy. A particular advantage lies in the fact that the recording pens are stationary, making it possible to plot the outputs from several activity counters across the whole width of …
A Preliminary Investigation Of The Relationship Between Gsr, Heart Rate Change And Eyelid Conditioning, W. N. Runquist, L. E. Ross
A Preliminary Investigation Of The Relationship Between Gsr, Heart Rate Change And Eyelid Conditioning, W. N. Runquist, L. E. Ross
Proceedings of the Iowa Academy of Science
Recent studies of classical defense conditioning at the Iowa laboratory have been concerned largely with the relation of drive level (D) to level of performance in conditioning. According to the theoretical formulation offered of the results of these studies, the associative factor, H, and drive factor, D, combine multiplicatively to determine reaction potential, E, which in turn determines the strength of the response, i.e., R = f (E) = f(H) X f(D). It has further been assumed that D is a function of (a) the intensity of the UCS, and (b) the score on the Manifest Anxiety (A) scale (8). …
A Case Of Gila Monster Poisoning With A Summary Of Some Previous Accounts, Martin L. Grant, L. J. Henderson
A Case Of Gila Monster Poisoning With A Summary Of Some Previous Accounts, Martin L. Grant, L. J. Henderson
Proceedings of the Iowa Academy of Science
Since published accounts of the effects of Gila monster (Heloderma suspectum Cope) bites are variable and conflicting, due undoubtedly to the many uncontrolled factors involved, it has seemed appropriate to put on record the details of one which was observed under unusually favorable circumstances. In this instance the first author was the patient, or experimental animal, or victim, depending on the point of view, and the second author was the attending physician. They tried to play the additional part of impartial observers, and, if a built-in bias is to be detected, it can be blamed on the difficulty of separating …
In Memoriam: Joseph Hall Bodine; Harold Burr Bryant; Dio Lewis Hall; John Milton Lindly; Herbert Osborn; Oscar Wallace Park; Harold Stiles; A. Milton Weidman; Frank Gary Brooks; Philip Greeley Clapp; William Henry Kadesch; Bradford Kuhns Macgraw; Jessie A. Parish; Ralph M. Robinson; Reuel Hull Sylvester; Otis R. Wolfe
Proceedings of the Iowa Academy of Science
No abstract provided.
Address To The Academy: Characteristics Of The Driving Population With Respect To Age, Sex, Driving Habits And Accident Involvement, A. R. Lauer
Proceedings of the Iowa Academy of Science
Since the year 1500 science has progressed at an accelerated pace. Almost every known type of problem has been experimentally attacked and methods have been developed for unravelling the riddle of particular phenomenon in question. The scope of scientific research extends from the investigation of the innermost secrets of the nucleus of the atom to the classification of facts known about ultrastellar space. This relentless discipline has probed into the secrets of living organisms and the gamut extends from explorations of submicroscopic, the nonfilterable virus, to the courtship and living habits of the stone-age man of New Guinea. However, homo …
Adaptation Of The Original Response To A Conditioned Stimulus, Willace R. Mcallister
Adaptation Of The Original Response To A Conditioned Stimulus, Willace R. Mcallister
Proceedings of the Iowa Academy of Science
Since the time of Pavlov, it has been a common observation that the conditioned stimulus (CS) in a classical conditioning situation is seldom, if ever, a completely neutral stimulus since, prior to learning, it usually elicits some response. However, in most conditioning studies only the change in the conditioned (learned) response has been studied, little systematic work having been conducted on the changes in the original (reflex) response to the CS. Hilgard and his students, mainly in the context of eyelid conditioning experiments (4, 5, 6), have reported some pertinent data, and there have also been some experiments, outside of …