Ohio Journal of Science: Volume 67, Issue 5 (September, 1967)

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https://kb.osu.edu/handle/1811/1153

Front Matter
pp 0
Article description | Article Full Text PDF (955KB)

Geographical Aspects of the Agriculture of Santa Catarina State, Brazil
Noble, Allen G. pp 257-273
Article description | Article Full Text PDF (1435KB)

Spatial and Seasonal Distribution of Planktonic Cladocera in a Small Reservoir
Winner, Robert W.; Haney, James F. pp 274-288
Article description | Article Full Text PDF (1259KB)

A Computer Program to Calculate Expected Frequencies and to Estimate Per Cent Recombination in a Dihybrid F2 with Linkage in the Coupling Phase and Various Types of Lethal Inheritance
Skavaril, Russell V.; Paddock, Elton F. pp 289-290
Article description | Article Full Text PDF (184KB)

Book Review
pp 290-290
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A Devonian Brachiopod with Epifauna
Hoare, Richard D. ;Steller, Dorothy La Londe pp 291-297
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Book Review
pp 297-297
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Tegmen Roof of Plaxocrinus Mooresi (Whitfield)
Burke, J. J. pp 298-300
Article description | Article Full Text PDF (207KB)

An Autoradiographic Study of Invertebrate Uptake of DDT-CL36
Webster, Edward J. pp 300-307
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Book Review
pp 307-307
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A Review of the Effects of Plant Estrogenic Substances on Animal Reproduction
Samuel, David E. pp 308-312
Article description | Article Full Text PDF (515KB)

Book Review
pp 312-312
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Oviposition Behavior in Two Species of Dragonflies
Young, Allen M. pp 313-316
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Book Review
pp 316-316
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The Barn Owl as a Red-Winged-Blackbird Predator in Northwestern Ohio
Carpenter, Michael L.; Fall, Michael W. pp 317-318
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Book Reviews
pp 318-320
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Back Matter
pp 999
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Now showing 1 - 17 of 17

Back Matter
(1967-09)
Book Reviews
(1967-09)
The Barn Owl as a Red-Winged-Blackbird Predator in Northwestern Ohio
(1967-09) Carpenter, Michael L.; Fall, Michael W.
Book Review
(1967-09)
Oviposition Behavior in Two Species of Dragonflies
(1967-09) Young, Allen M.
A comparative study of oviposition behavior of the dragonflies, Anax junius and Tramea onusta, was undertaken for two successive years in Tinley Park, Illinois. It was found that females of both species use tandem position and oviposit in close association with males. In A. junius, however, the male is physically attached to (tandem with) the ovipositing female during the actual act of oviposition, while in T. onusta, the female leaves the male to oviposit while the male hovers in close proximity. Immediately prior to the moment of oviposition, tandem pairs of both species fly about, presumably in search of suitable oviposition sites. At this time and at the time of oviposition, single males of both species assault pairs, presumably in attempts to copulate with females. In T. onusta, at the moment of oviposition, when the pairs separate, single conspecific males are repeatedly successful in arresting oviposition. This is not true for A. junius, where, due to the attachment of the male, assaults on ovipositing pairs by single conspecific males are not successful in arresting oviposition. It is possible that such arrested oviposition may play a part in local dispersal of adults, but additional studies, preferably with a species more easily marked and captured, would be necessary to demonstrate this hypothesis.
Book Review
(1967-09)
A Review of the Effects of Plant Estrogenic Substances on Animal Reproduction
(1967-09) Samuel, David E.
In the 1940's, hormone-like substances were found in plants which caused reproductive difficulties in sheep. Since that time, various substances from many plants, such as alfalfa, ladino clover, and birdsfoot trefoil, have been indicated as the cause of such reproductive problems in mammals. Estrogen is one of the main substances shown to produce such effects. Questions consistently arising concern: the amounts of estrogen in certain plants, the variation of these amounts during different seasons, the effectiveness of such hormone substances taken orally, and the effects of varying consumptions of estrogencontaining plants on growth, reproduction, and other life activities of various species of wildlife.
Book Review
(1967-09)
An Autoradiographic Study of Invertebrate Uptake of DDT-CL36
(1967-09) Webster, Edward J.
This research sought to locate autoradiographically DDT-C136 in tissues of leeches, amphipods, and copepods three months after their marsh habitat was treated with the amount of insecticide routinely used for mosquito control. Isotope DDT or its metabolite was found in cytoplasm of nerve cell bodies, gut mucosa, and vascular tissue of leeches. No isotope DDT was detected in the tissue of amphipods and copepods.
Tegmen Roof of Plaxocrinus Mooresi (Whitfield)
(1967-09) Burke, J. J.
Preparation and study of a crinoid specimen in the Orton Museum collection reveal for the first time the tegmen roof of Plaxocrinus mooresi (Whitfield). The roof is flat and composed of 14 small polygonal plates encircled by 10 large spines which project laterally and abut along their sides proximally. The tegmen roof comprises part of the crown of a young individual showing the dorsal cup, plates of the posterior interradius, and adjacent arms. A portion of the tegmen roof of a mature crinoid is also referred to Plaxocrinus mooresi. Both specimens were collected near the base of the Allegheny Group, of Pennsylvanian age, at Carbon Hill, Hocking County, Ohio.
Book Review
(1967-09)
A Devonian Brachiopod with Epifauna
(1967-09) Hoare, Richard D.; Steller, Dorothy La Londe
Recognition of epifauna-host relationships are difficult to ascertain in fossil material. Distribution and orientation of epifaunal elements, repair of the host shell, deformation of the host by the epifauna, and continued growth of the host provides evidence of the type of relationship. Brachiopods in the Devonian Silica Formation of northwestern Ohio commonly have abundant epifauna. A specimen of Paraspirifer bownockeri Stewart, collected from this formation shows evidence of a parasitic, in part antagonistic, relationship with the boring sponge Clionoides thomasi Fenton and Fenton and commensal relationships with the worm Cornulites cingulatus? Hall, the inarticulate brachiopod Lingulodiscina marginalis Whitfield, and possibly the bryozoans Hederella canadensis (Nicholson) and H. cirrhosa (Hall). Distribution of the epifaunal elements indicate the life position of the host to be vertical, with the beaks down, or possibly lying on the posterior portion of the pedicle valve after atrophy of the pedicle had taken place.
Book Review
(1967-09)
A Computer Program to Calculate Expected Frequencies and to Estimate Per Cent Recombination in a Dihybrid F2 with Linkage in the Coupling Phase and Various Types of Lethal Inheritance
(1967-09) Skavaril, Russell V.; Paddock, Elton F.
Spatial and Seasonal Distribution of Planktonic Cladocera in a Small Reservoir
(1967-09) Winner, Robert W.; Haney, James F.
A planktonic cladoceran community composed of 4 species (Bosmina longirostris, Daphnia parvula, Diaphanosoma leuchtenbergianum, and Ceriodaphia quadrangula) was studied over a 3-year period in a small man-made lake in southwestern Ohio. Plankton samples were collected from 3 stations and 4 depths (surface, 3-, 6-, and 9-meters). B. longirostris was the numerically dominant species at all stations and in all seasons, except for a short period in the spring, when D. parvula was dominant. D. parvula was a vernal species, persisting only in small numbers during the summer and autumn. D. leuchtenbergianum was classed as a polythermic species, being present in significant numbers, only during the warmest periods. C. quadrangula appeared as a significant member of the community only during the final year of the study. Diaphanosoma leuchtenbergianum was consistently most abundant at the shallowest of the 3 stations; the other 3 species did not exhibit any consistent pattern of horizontal distribution. B. longirostris was very erratic in its vertical distribution from sampling period to sampling period, exhibiting population maxima at 3 of the 4 sampling depths with considerable frequency. Attempts to relate changes in its vertical distribution to environmental conditions were not successful. D. parvula populations concentrated with considerable regularity at the 6-meter depth. This was especially true during the 1962 season, in contrast to 1961 and 1963. Data are presented which suggest that, during 1961 and 1963, the species was more frequently prevented from localizing at its preferred depth by vertical turbulence in the water column. Both D. leuchtenbergianum and C. quadrangula were midwater forms, population maxima most frequently occuring at 3- and 6-meter depths.
Geographical Aspects of the Agriculture of Santa Catarina State, Brazil
(1967-09) Noble, Allen G.
Agriculture is the most important economic activity in Santa Catarina, in spite of rapidly developing timber and light manufacturing industries. The agricultural industry of Santa Catarina differs from that of the rest of Brazil in being small scale and almost entirely owner-operated. In general, field crops are far more important than livestock, with corn as the dominant crop of the state. Wheat, manioc, black beans, and rice are other staples. Brazilian agricultural statistics are presented on the basis of "physiographic zones," on which basis all government statistics are collected, even though this may result in quite erroneous impressions.
Front Matter
(1967-09)

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