http://hdl.handle.net/1811/25079 2013-05-26T03:15:53Z http://hdl.handle.net/1811/25176 Back Matter 2004-12-01T00:00:00Z http://hdl.handle.net/1811/25175 The Ohio Journal of Science - Table of Contents - Volume 104 2004-12-01T00:00:00Z http://hdl.handle.net/1811/25174 Ohio Academy of Science Board of Trustees 2004-12-01T00:00:00Z http://hdl.handle.net/1811/25173 Author and Subject Index to Volume 104 2004-12-01T00:00:00Z http://hdl.handle.net/1811/25170 Obituaries of the Members of the Ohio Academy of Science Report of the Necrology Committee, 2004 2004-12-01T00:00:00Z http://hdl.handle.net/1811/25169 Response of Roosting Turkey Vultures to a Vulture Effigy Seamans, Thomas W. Increasing populations of turkey vultures (Cathartes aura) and black vultures (Coragyps atratus) cause concerns for human health and safety in areas where large roosting concentrations occur. Dead bird effigies are one proposed method of dispersing roosting vultures. In 1999 and 2000, tests were conducted using a supine and hanging turkey vulture effigy (a taxidermy mount) to disperse a vulture roost in a tower in northern Ohio. In all tests, fewer (P ≤0.04) vultures were observed in the roost during the treatment period when compared to the pretreatment period. In tests ending in fall migration the posttreatment period differed (P <0.01) from the pretreatment period. In tests ending in summer the pre- and posttreatment periods did not differ (P >0.23). Vulture effigies are promising tools that may be used as part of integrated programs to disperse vultures from problem roosting sites. Author Institution: USDA, Wildlife Services, National Wildlife Research Center 2004-12-01T00:00:00Z Seamans, Thomas W. http://hdl.handle.net/1811/25168 Monitoring Slump-Earthflow Complex Movement: A Southeastern Ohio Case Study Van de Grift, Jon W.; Sack, Dorothy In the nonglaciated region of southeastern Ohio, slope failures are among the most prominent natural hazards. Slumps are the most common form of slope movement in this area. These rotational earthslides move downslope with minimal deformation along a concave failure plane. Although they are relatively slow moving, slumps can develop with little warning, causing damage to buildings, roads, and other features. Earthflows, also common on this landscape, move downslope on the surface with a high amount of mixing. Characterizing the behavior of slope failures is an essential step in mitigating their effects. Using an electronic total station, the movement of a slump-earthflow complex located near Athens, OH, was monitored over a 5-month period. The study area is approximately 100 m × 130 m. A grid of 90 points was located on the surface of the slope. Each point was surveyed 10 times. These data are plotted and correlated with precipitation and temperature data collected by the Scalia Laboratory for Atmospheric Analysis at Ohio University. Movement on the foot of the slump was significantly greater than movement on the toe and crown. Regression analysis indicates that precipitation was a statistically significant factor influencing slope movement, but only accounted for 7% of the movement. Temperature was a statistically significant factor as well, also accounting for only 7% of the movement. Empirical evidence suggests that antecedent precipitation plays an important role in slope movement in this area. Author Institution: Dept of Geography, Ohio University 2004-12-01T00:00:00Z Van de Grift, Jon W. Sack, Dorothy http://hdl.handle.net/1811/25167 Ohio Educators Respond to Governor Taft’s Initiative for the Third Frontier: A Call for Action Karkowski, Andrea M.; Vakalis, Ignatios E. The new science frontier requires training students who have the knowledge and skills to work on scientific problems that transcend specific scientific disciplines. A computational studies curriculum integrated into undergraduate science majors can provide the experiences that students need to succeed in the new science frontier. Computational studies is the use of mathematical modeling and computer visualization to solve problems in biological, physical, medical, and behavioral sciences as well as economics, finance, and engineering. A computational studies curriculum is characterized by: 1) the use of computer visualization techniques and mathematical modeling to answer contemporary questions in science, 2) participation in undergraduate research experiences that includes real-world problemsolving with industry partners, 3) engagement in interdisciplinary conversations within cross-functional teams, 4) development of a computational studies thought process, 5) exploration of the creative nature of science, mathematics, and computer science, and 6) communication of science problems and solutions to a variety of audiences. Opportunities for integrating computational studies into science curricula are explored. Author Institution: Capital University 2004-12-01T00:00:00Z Karkowski, Andrea M. Vakalis, Ignatios E. http://hdl.handle.net/1811/25166 Trends in Reproductive Performance and Condition of White-tailed Deer in Ohio Tonkovich, Michael J.; Reynolds, Michael C.; Culbertson, William L.; Stoll, Robert J., Jr. We compared the reproductive performance and condition of white-tailed deer (Odocoileus virginianus) collected in two regions of Ohio in 1996-99 with previous studies in 1962-67 (Nixon and others 1970; Nixon 1971) and 1981-83 (Stoll and Parker 1986). Statistical comparisons were limited to the 1981-83 and 1996-99 datasets because only summary data were available for 1962-67. We used uterine analysis to estimate reproductive parameters of roadkilled deer during 1982-83 and 1997-99, but ovarian analysis was used on deer obtained during fall hunting seasons in 1962-67. Pregnancy rates of fawns and yearlings declined in the farmland and hill country regions between 1982-83 and 1997-99, but no changes occurred in pregnancy rates of adult does. Fetal rates (fetuses/pregnant doe) of fawns and reproductive rates (fetuses/doe) of fawn and yearlings declined between 1982-83 and 1997-99. Body mass was collected at check stations in fall hunting seasons in the 1960s, 1981-82, and 1996-98, but antler beam and point characteristics were only measured in the 1981-82 and 1996-98 sampling periods. Mean body mass of all sex and age classes declined in the hill country, but fewer changes occurred in the farmland region. Mean antler beam diameter of yearling males declined in the hill country, but no differences were apparent in the farmland region. Reproductive performance and condition parameters were greater for deer in the farmland than in the hill country during both time periods. Declines in reproductive rates and in body condition have occurred as deer populations have increased in Ohio. Based on published sustained-yield tables (McCullough 1979; Downing and Guynn 1985), deer populations in the farmland region may currently exist at 35-40% of ecological carrying capacity, while the deer herd in the hill country may be near maximum sustained yield (MSY; 56% of ecological carrying capacity). Increased antlerless deer harvests may be required in the future to stabilize the population at MSY and maintain body condition and antler quality of deer because of a diminishing carrying capacity in southeastern Ohio. Author Institution: Ohio Department of Natural Resources, Division of Wildlife 2004-12-01T00:00:00Z Tonkovich, Michael J. Reynolds, Michael C. Culbertson, William L. Stoll, Robert J., Jr. http://hdl.handle.net/1811/25165 Pirouetting Pigs and the Charade of Junk Science Heath, Robert T. OAS Presidential Address, April 2004 Author Institution: Dept of Biological Sciences, Kent State University 2004-12-01T00:00:00Z Heath, Robert T. http://hdl.handle.net/1811/25164 Front Matter 2004-12-01T00:00:00Z