Ohio Journal of Science: Volume 92, Issue 1 (March, 1992)

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https://kb.osu.edu/handle/1811/22117

Front Matter
pp. 0
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Editorial
Meserve, Lee A. pp. 3-3
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Differential Response of Female Deer Mice to Short Photoperiod
Blank, James L.; Korytko, Andrew I.; Weber, Sabrina pp. 4-7
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The Effect of Deantennation on the Dominant-Subordinate Relationship in the American Cockroach (Periplaneta americana)
Murfin, Brian pp. 8-10
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A Population of Taphromysis louisianae (Banner); (Crustacea: Mysidae) in a Clermont County Ohio River Wetland
Reeder, Brian C.; Hardin, Michael D. pp. 11-13
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The Vascular Flora of a Transect Across the Beaver Creek Wetlands, Greene County, Ohio
Schmalhofer, Victoria R.; Amon, James P.; Runkle, James R. pp. 14-24
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Effect of Land Use Practices on Composition of Woodlot Vegetation in Greene County, Ohio
Ramey-Gassert, Linda K.; Runkle, James R. pp. 25-32
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Estimating Optimal Flow Values From Aggregate Data in Undetermined Spatial Systems
Janson, Richard W.; Krishna, Lala B.; Janson, Daniel W. pp. 33-37
Article description | Article Full Text PDF (363KB)

Brief Note: The 1991 Emergence of the Periodical Cicadas (Homoptera: Cicadidae: Magicicada spp.: Brood XIV) in Ohio
Kritsky, Gene pp. 38-39
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Book Reviews
pp. 40-40
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Reviewers of Manuscripts for the Ohio Journal of Science During 1991
pp. 44-44
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Back Matter
pp. 999
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Now showing 1 - 12 of 12

Back Matter
(1992-03)
Reviewers of Manuscripts for the Ohio Journal of Science During 1991
(1992-03)
Book Reviews
(1992-03)
Brief Note: The 1991 Emergence of the Periodical Cicadas (Homoptera: Cicadidae: Magicicada spp.: Brood XIV) in Ohio
(1992-03) Kritsky, Gene
Periodical cicadas of the 17-year brood XIV emerged in parts of southern Ohio in 1991. The emergence was heaviest in extreme southern Ohio where eastern Hamilton, Clermont, Brown, Adams, Scioto, Lawrence, Highland, and Ross counties reported the heaviest populations. Lighter and scattered emergences were reported in Champaign, eastern Butler, southern Warren, Clinton, Fayette, Greene, Pike, Jackson, Gallia, and Washington counties. The distribution of brood XTV in Ohio has remained relatively constant during the past two centuries.
Estimating Optimal Flow Values From Aggregate Data in Undetermined Spatial Systems
(1992-03) Janson, Richard W.; Krishna, Lala B.; Janson, Daniel W.
A very rapid method to estimate optimal flow values of commodities within and among all regions of a spatial system is shown to be functionally dependent on the number of regions comprising the system. Aggregate data for the regions, such as total shipments from producing establishments are used as rim totals of the unknown spatial matrix. In general, the spatial matrix is an undetermined system, and the solution for the unknown cell values requires an inverse. A formula for the required inverse is derived and is incorporated into a distributor matrix, for which a formula is presented. To compute the unknown cells of the spatial matrix, as a vector, the distributor matrix is post multiplied by the vector of rim totals. The values estimated by this approach are based on least squares method.
Effect of Land Use Practices on Composition of Woodlot Vegetation in Greene County, Ohio
(1992-03) Ramey-Gassert, Linda K.; Runkle, James R.
Woody vegetation in 17 woodlots in Greene County, OH was sampled and the owners of the woodlots surveyed and interviewed to reveal relationships between present species composition and land-use histories. Altogether, 4,080 stems in three size-classes were sampled using the point-centered quarter method. Land-use histories and direct observations were used to devise a human activity index (HAI) to rank the woodlots according to the intensity of human use. The HAI values correlated (P - 0.0072) with the first DECORANA (detrended correspondence analysis) ordination axis supporting the hypothesis that human land-use practices had an effect on present community structure. Woodlot size, the types of disturbance (e.g., timber harvest, firewood cutting, tree planting, livestock grazing, recreation, and so forth) and time (both duration of the disturbance and subsequent recovery) were key factors influencing the species composition of the present vegetation.
The Vascular Flora of a Transect Across the Beaver Creek Wetlands, Greene County, Ohio
(1992-03) Schmalhofer, Victoria R.; Amon, James P.; Runkle, James R.
During the 1989 growing season we surveyed part of the Beaver Creek Wetlands in Greene County, OH, to describe and catalog the vegetation and to determine if a transect oriented through the study site satisfied the mandatory technical criteria for vegetation used by Federal agencies to delineate wetlands. We established 14 plots along the transect and compiled a list of the species occurring within the plots and throughout the rest of the study site. We identified 198 species, including five species on the Ohio list of threatened and endangered species. A majority of species occurring within the study site were classified as hydrophytes. A wetland index was calculated for each plot using weighted percentages of vegetation indicator-categories. Wetland-index values, which expressed changes in wetland character (degree and duration of soil saturation as reflected by proportions of hydrophytes and nonhydrophytes occurring in the plots), were significantly correlated with first-axis scores from a detrended correspondence analysis (DECORANA). This correlation indicated that DECORANA first-axis scores also reflected changes in wetland character along the transect. The wetland index also identified areas that showed a tendency towards seasonal or spatial transition between wetland and nonwetland. According to federal criteria, wetland areas included the 12 interior plots along the transect and part of plot 14, while nonwetland areas included plot 1 and most of plot 14.
A Population of Taphromysis louisianae (Banner); (Crustacea: Mysidae) in a Clermont County Ohio River Wetland
(1992-03) Reeder, Brian C.; Hardin, Michael D.
A reproducing population of Taphromysis louisianae was found in a shallow freshwater tributary of the Ohio River in Clermont County, OH throughout 1990-91. The nearest distribution record is in Louisiana. Therefore, this is the first record of this normally brackish water species in the Ohio River Basin. Analysis of habitat reveals that the population prefers shallow water (< 1 m) with leafy, high organic matter (about 8% of the soil dry weight) substrate. At the Ohio discovery site salinity was below limits of detection; the average pH was 6.5, and the mean dissolved oxygen concentration was 10 mg I1. This is in contrast to the higher salinity habitat of this species in bays and ditches of tidal areas. Because of distance and physiochemical disparities between the Gulf Coast and Ohio habitats, it is suggested that the isolated inland population exhibits characteristics of the early stages of speciation.
The Effect of Deantennation on the Dominant-Subordinate Relationship in the American Cockroach (Periplaneta americana)
(1992-03) Murfin, Brian
The American cockroach has been observed to exhibit complex social behavior. In this study the effect of deantennation on the dominant-subordinate relationship in the American cockroach, Periplaneta americana, was investigated. Ablation of the antennae of a dominant individual caused a reversal in status to occur with a previously subordinate male assuming the dominant position.
Differential Response of Female Deer Mice to Short Photoperiod
(1992-03) Blank, James L.; Korytko, Andrew I.; Weber, Sabrina
Individual male deer mice (Perotnyscus maniculatus} respond to inhibitory (short) photoperiod with gonadal responses that range from azoospermia to normal spermatogenesis. We undertook the present study to determine if female deer mice exhibit similar variation in reproductive response to inhibitory daylength. Following 8 wk exposure to short days, reproductive tract weights of 25% of all individual females did not differ from those displayed by mice housed on stimulatory (long) photoperiod; reproductive tracts of all remaining short day mice weighed significantly less. Short photoperiod also significantly reduced body weight, albeit only in those mice with regressed reproductive tracts. These results demonstrate that female deer mice respond differentially to the inhibitory effects of short photoperiod. Taken together with previous results, the present findings indicate that populations of deer mice are composed of subsets of males and females that differ in reproductive response to short daylength.
Editorial
(1992-03) Meserve, Lee A.
Front Matter
(1992-03)

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