Mating Behavior and Male Territoriality in Enallagma vesperum (Odonata: Coenagrionidae) on Ponds in Ohio and Northern Michigan

Author Institution: Biology Department, The University of FindlayThe crepuscular damselfly Enallagma vesperum Calvert, was studied to document and clarify mating behavior. This paper is a descriptive synthesis of observations which answer basic questions regarding mating behavior of E. vesperum. Beginning in July 2004 and continuing in the summers through September 2009, approximately 140 hours of direct observation on a lake in Northern Michigan and a lake and two ponds in Ohio were logged to support the results and conclusions. The literature regarding mating behavior in E. vesperum provides little information about male territoriality. The results from this six-year study offer strong evidence of male territory selection and territory defense. Copulatory behavior and ovipositional behavior were also recorded. In most coenagrionid species, males remain in tandem with ovipositing females unless the females submerge. In this study, however, females were observed ovipositing in tandem or individually into surface vegetation

August Carl Mahr (1886-1970)

Author Institution: Department of History, Miami University, Oxford, Ohio 4505

BASE REVENUE PROTECTION AND REVENUE COUNTERCYCLICAL PROGRAMS FOR SPRING WHEAT IN NORTH DAKOTA

The National Corn Growers Association Public Policy Team’s Base Revenue Projection Program (BRP) and the Revenue Countercyclical Program (RCCP) were analyzed. The analysis was done for spring wheat using the BRP-RCCP calculator, as developed by the National Corn Growers Association. Three representative counties (Hettinger, Ward and Cavalier) were chosen in North Dakota. Historic and projected data were used to analyze 2002 to 2010 crop years. A comparison of the BRP-RCCP programs to the current farm program was done. From 2002 to 2005, Ward County would have received nearly identical payments under the BRP-RCCP program and the current farm program. The Hettinger County farm would have received considerably more under the BRP-RCCP program - $76.87 per acre, compared with$38.99 under the existing farm program. This amounts to $9.22 per acre per year. For the Cavalier County farm, the advantage to the BRP-RCCP program was only$7.56 per acre for the four-year period.farm bill, wheat, countercyclical payments, revenue, Agricultural Finance, Crop Production/Industries,

BASE REVENUE PROTECTION AND REVENUE COUNTERCYCLICAL PROGRAMS FOR CORN IN NORTH DAKOTA

The National Corn Growers Association Public Policy Team’s Base Revenue Projection Program (BRP) and the Revenue Countercyclical Program (RCCP) were analyzed. The analysis was done for corn using the BRP-RCCP calculator, as developed by the National Corn Growers Association. Three representative counties (Richland, Barnes and Foster) were chosen in North Dakota. Historic and projected data were used to analyze 2002 to 2010 crop years. A comparison of the BRP-RCCP programs to the current farm program was done. For 2002 to 2005, Barnes County would have received more total payments under the BRP-RCCP program than with the current farm program. The gain would have been $24.12 per acre during the four years. Richland and Foster counties would have received more payments with the current farm program than with the BRP-RCCP program. The Richland County farm would have received considerably more under the existing program -$78.03 per acre for the four-year period, or about $19.50 per acre per year. For Foster County, the advantage to the current program was only$10.05 for the four-year period.farm bill, corn, countercyclical payments, revenue, Agricultural Finance, Crop Production/Industries,

Cross-Hedging Fishmeal: Exploring Corn and Soybean Meal Futures Contracts

During 2006 the fishmeal price nearly doubled from $500MT to over$900MT. The objective of this research is to determine the optimal cross-hedge ratio between fishmeal and soybean meal and corn, and corresponding hedging weight between corn and soybean. Results indicate all hedging weight should be placed on the corn futures contract. This is an interesting result since prior fishmeal cross-hedging research has not analyzed the corn futures contract as a risk management mechanism.Crop Production/Industries, Risk and Uncertainty,

The Vaporization of B2O3(l) to B2O3(g) and B2O2(g)

The vaporization of B2O3 in a reducing environment leads to formation of both B2O3(g) and B2O2(g). While formation of B2O3(g) is well understood, many questions about the formation of B2O2(g) remain. Previous studies using B(s) + B2O3(l) have led to inconsistent thermodynamic data. In this study, it was found that after heating, B(s) and B2O3(l) appear to separate and variations in contact area likely led to the inconsistent vapor pressures of B2O2(g). To circumvent this problem, an activity of boron is fixed with a two-phase mixture of FeB and Fe2B. Both second and third law enthalpies of formation were measured for B2O2(g) and B2O3(g). From these the enthalpies of formation at 298.15 K are calculated to be -479.9 +/- 41.5 kJ/mol for B2O2(g) and -833.4 +/- 13.1 kJ/mol for B2O3(g). Ab initio calculations to determine the enthalpies of formation of B2O2(g) and B2O3(g) were conducted using the W1BD composite method and show good agreement with the experimental values

Aquatic Macroinvertebrate Communities from the Portage River Watershed Headwater Streams (Wood County, Ohio)

Author Institution: University of FindlayMacroinvertebrate communities in a transect of the Portage River watershed were quantitatively and qualitatively assessed. The emphasis was on identification and community structure of the macroinvertebrate biota resident in its smallest order streams and ditches. Hester-Dendy multi-plate samplers were used to assess the macroinvertebrate communities at 10 sites across the watershed in the summer of 2001. Dominant macroinvertebrates collected at greater than 70% of the sites were: Caenis sp., Stenonema femoratum, Lirceus lineatus, Physella integra 54 species from 11 major taxa were collected overall, with highest diversity in the smallest order tributaries. The central area of the transect yielded lower numbers of species and densities than the eastern or western drainage areas, and Shannon-Wiener Diversity Indices (SDI) illustrate this depressed community structure. Of the study sites, Rader Creek and the South Branch of the Portage were the most diverse, while Bull Creek was the least diverse. As was predicted from the physical appearance of the majority of the sites, the Portage River watershed macroinvertebrate communities were both depauperate and trophically simplistic. The Invertebrate Community Index (ICI is the principal assessment tool used by the Ohio EPA to monitor all free-flowing waters in Ohio) of the macroinvertebrate communities’ resident suggest only poor to fair water quality at all locations throughout the summer. The impoverished state of the communities present in what is the most active time of the year suggests that steps to increase the health and complexity of the habitat would offer greater natural services to the watershed and drainage