http://hdl.handle.net/1811/22104 Fri, 24 May 2013 12:54:31 GMT 2013-05-24T12:54:31Z http://hdl.handle.net/1811/23331 Back Matter Fri, 01 Sep 1989 00:00:00 GMT http://hdl.handle.net/1811/23331 1989-09-01T00:00:00Z http://hdl.handle.net/1811/23330 Book Reviews Fri, 01 Sep 1989 00:00:00 GMT http://hdl.handle.net/1811/23330 1989-09-01T00:00:00Z http://hdl.handle.net/1811/23329 Climatic Summary of Snowfall and Snow Depth in the Ohio Snowbelt at Chardon Schmidlin, Thomas W. Snowfall records were examined for the period 1945-85 at Chardon, OH, the only station with a long climatic record in the snowbelt. Average seasonal snowfall was 269 cm (106 in) with a seasonal maximum of 410 cm (161 in). Seasonal snowfall was positively correlated with other sites in the lower Great Lakes snowbelts and along the western slope of the Appalachians from Tennessee to Quebec, but was not correlated with snowfall in the snowbelts of the upper Lakes. The time series of seasonal snowfall was not random but showed weak year-to-year persistence. The average number of days with 2.5 cm (1 in) of snowfall was 35. The average dates of the first and last 2.5 cm snowfalls of the winter were 10 November and 4 April. The largest two-day snowfall of the winter averaged 33 cm. The average number of days with 2.5 cm of snow cover was 82. Daily probability of snow cover reached the seasonal maximum of 86% in mid-January and early February. These results may be reasonably extrapolated throughout the Ohio snowbelt for applications in vegetation studies, animal ecology, hydrology, soil science, recreation, and transportation studies. Author Institution: Geography Department and Water Resources Research Institute, Kent State University Fri, 01 Sep 1989 00:00:00 GMT http://hdl.handle.net/1811/23329 1989-09-01T00:00:00Z Schmidlin, Thomas W. http://hdl.handle.net/1811/23328 Environmental Education Efforts in Ohio High Schools in the 1980s Taylor, Timothy A.; Fortner, Rosanne W. Educators in randomly selected high schools in Ohio were questioned to determine the treatment of environmental education in their curricula. Environmental efforts identified were examined for relationships with curriculum placement of the efforts, school size, type of school district, and location of district. Author Institution: Franklin Local Schools and OSU School of Natural Resources Fri, 01 Sep 1989 00:00:00 GMT http://hdl.handle.net/1811/23328 1989-09-01T00:00:00Z Taylor, Timothy A. Fortner, Rosanne W. http://hdl.handle.net/1811/23327 Kainic Acid Induced Seizures and the GABA System in the Substantia Nigra Shaffer, Lillian M.; Meserve, Lee A. Gamma-aminobutyric acid (GABA) is an inhibitory neurotransmitter implicated in the control of generalized seizures induced by various convulsants. A specific anatomical site of action, the substantia nigra (SN), has been shown to be involved in the GABA mediation of seizures. It was the objective of this study to investigate the GABA system in the SN and its response to seizures induced by the neuroexcitant kainic acid (KA). Since there have been conflicting reports of the effects of convulsants on GABA-related measures in some brain regions, with some reporting increases and others showing decreases, one purpose of this investigation was to examine the directionality of changes in GABA content of the SN, along with the magnitude of the effects of KA and the time course over which these effects were manifested. Rats were injected intraperitoneally with either 12.5 mg/kg KA or saline. GABA and protein contents of the SN were measured at 2, 16, 24 and 48 hrs subsequent to injection. The levels of GABA in the SN were found to increase in KA-injected animals over control levels for all time intervals except the 16 hr condition. These results are generally in conflict with those obtained by many researchers using the activity of the GABA synthetic enzyme glutamic acid decarboxylase (GAD) as a measure of GABA levels. It is suggested that GABA levels may actually increase in response to convulsants and serve to negatively feed back to its synthetic enzyme. Therefore, a decrease in GAD activity would not necessarily reflect a decrease in GABA levels. Future research directions include enzyme studies of both GAD and GABA transaminase and their regulation by products and substrates. Author Institution: Department of Biological Sciences, Bowling Green State University Fri, 01 Sep 1989 00:00:00 GMT http://hdl.handle.net/1811/23327 1989-09-01T00:00:00Z Shaffer, Lillian M. Meserve, Lee A. http://hdl.handle.net/1811/23326 Effect of Oil Well Brine on Germination and Seedling Growth of Several Crops Munn, David A.; Stewart, Raymond Large quantities of oil and gas well brines are produced annually in Ohio. This paper presents chemical parameters measured for a Wayne County, Ohio, oil well brine and reports the effects of several incremental brine concentrations on the germination and seedling development of soft red winter wheat (Triticum aestivum), soybeans (Glycine max), tall fescue (Festuca arundinacea), garden peas (Pisum sativum), and oats (Avena sativa). Chemical tests of two brine samples collected at the same well site showed large quantities of total solids (83 and 96 g/L), very high electrical conductivity (124 and 145 dS/m), and the presence of several elements at levels reported in the literature to be capable of causing crop injury or toxicity (Cl ~ 55 and 57 g/L, Na+ 14.8 and 15.8 g/L, B 11 and 9 mg/L). The dominant ions present were Na+ and Cl . Germination studies indicated that increasing the volume percentage of brine reduced the germination of tall fescue and soybeans more than wheat or garden peas. Increasing the volume percentage of brine caused the greatest reduction in plumule/hypocotyl enlargement in the following order: tall fescue > peas > wheat. In a 21-day greenhouse study, soybean dry matter yields were reduced more than those of oats by increasing the levels of brine in the water used to water the plants without leaching. Author Institution: The Ohio State University, Agricultural Technical Institute Fri, 01 Sep 1989 00:00:00 GMT http://hdl.handle.net/1811/23326 1989-09-01T00:00:00Z Munn, David A. Stewart, Raymond http://hdl.handle.net/1811/23325 Differences in Web-Spider Communities Associated With Three Old-Field Communities in Southwest Ohio Cangialosi, Karen R. Plant architecture is known to have an impact on web-building spider communities. Web-spider abundance and distribution were monitored in September 1986 and 1987 on three types of plots with distinct plant communities. Differences were seen in spider abundance, family composition, and dispersion patterns between spider communities in control plots of old-field vegetation and plots treated with fertilizer or sludge. These differences were apparently related to changes in plant species composition, height, and density associated with nutrient enrichment. Differences in family representation and overall spider abundance were seen in the fertilizer and sludge plots as a result of decreases in plant density and increases in plant height. Spiders in fertilizer and sludge plots were distributed in a clumped pattern; spiders in control plots were distributed either uniformly or randomly. Low web site availability because of low plant density in nutrient enriched plots and high plant density in control plots was most likely responsible for these dispersion patterns. Author Institution: Department of Zoology, Miami University Fri, 01 Sep 1989 00:00:00 GMT http://hdl.handle.net/1811/23325 1989-09-01T00:00:00Z Cangialosi, Karen R. http://hdl.handle.net/1811/23324 A Preliminary Checklist of the Lepidoptera of Mohican State Forest and Mohican State Park, Ashland County, Ohio Rings, Roy W.; Metzler, Eric H. A comprehensive survey of the Lepidoptera occurring at a state forest and recreational area in Ashland County, Ohio was conducted from 1985 to 1988. Sampling was done using the following techniques: ultraviolet light traps, mercury vapor lights plus ultraviolet lights and collecting sheet, bait traps, sugaring and netting. A total of 466 species and forms were identified and tabulated. It was estimated that the actual number of species at this site was 676. None of the species collected is known to be endangered, threatened, or of special concern. Representative specimens were deposited in the Insect Reference Collection at the Ohio Agricultural Research and Development Center (OARDC), The Ohio State University, Wooster, Ohio. The current status of the abundance of each species was described. Author Institution: Ohio Agricultural Research and Development Center, The Ohio State University and Ohio Department of Natural Resources Fri, 01 Sep 1989 00:00:00 GMT http://hdl.handle.net/1811/23324 1989-09-01T00:00:00Z Rings, Roy W. Metzler, Eric H. http://hdl.handle.net/1811/23323 Front Matter Fri, 01 Sep 1989 00:00:00 GMT http://hdl.handle.net/1811/23323 1989-09-01T00:00:00Z