http://hdl.handle.net/1811/1182 Wed, 22 May 2013 19:47:14 GMT 2013-05-22T19:47:14Z http://hdl.handle.net/1811/5713 Back Matter Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5713 1972-07-01T00:00:00Z http://hdl.handle.net/1811/5712 Book Reviews Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5712 1972-07-01T00:00:00Z http://hdl.handle.net/1811/5711 Necrology Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5711 1972-07-01T00:00:00Z http://hdl.handle.net/1811/5710 The Ohio Academy of Science : Officers, Committees, and Academy Representatives for 1972-73 Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5710 1972-07-01T00:00:00Z http://hdl.handle.net/1811/5709 Book Reviews Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5709 1972-07-01T00:00:00Z http://hdl.handle.net/1811/5708 A Distribution-Free Discrimination Technique Applied to Typical Cincinnatian (Upper Ordovician) Limestones Osborne, Robert H. Multivariate discrimination procedures have been developed by which a given sample may be assigned to its correct population of origin on the basis of values it exhibits for the p variables observed. A discrimination method (Kendall, 1966) based on order-statistics is illustrated for possible use whenever the mathematical requisites for discriminant function analysis cannot be satisfied. The method described is distribution free, involves only counting, may be applied to variables measured on or above an ordinal scale, shows which variables are most important in the discrimination, and provides for a region of statistical indecision. The method was applied to petrographic measurements taken from 25 class 1-2 and 25 class 3 limestones collected from the Kope and Fairview Formations, exposed eastern Hamilton County, Ohio. Of eleven primary and derived variables observed, 68 percent of these limestones can be correctly assigned by the percentages of micrite, sparite, broken brachiopods, and crinoids, whereas the remaining 32 percent are included within a region of indecision. In this case, the discriminatory efficiency is not significantly increased by using more than the four variables listed above. Author Institution: Department of Geological Sciences, University of Southern California, Los Angeles, California 90007 Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5708 1972-07-01T00:00:00Z Osborne, Robert H. http://hdl.handle.net/1811/5707 Book Review Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5707 1972-07-01T00:00:00Z http://hdl.handle.net/1811/5706 The Forest-Field Ecotone of Dysart Woods, Belmont County, Ohio Toye, Ezekiel A.; Wistendahl, Warren A. The two tracts of forest constituting Dysart Woods, a mature oak forest, are bordered by secondary-growth forests and by fields which have been removed from agricultural use at different times. The vegetation along the margins of the mature forest and along the adjacent fields was studied to determine the existing vegetation and the trend of the migration of trees into the fields. Quadrat data for herbs, shrubs, and trees show vegetational trends characteristic of oldfield succession, but which vary from field to field. The arborescent vegetation indicates that the forest should become dominated by Fagus grandifolia and Acer saccharum as it expands into the fields. Quercus alba, a dominant in the forest, appears to lose that status within the expanding margins. Author Institution: Department of Botany, Ohio University, Athens, Ohio 45701 Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5706 1972-07-01T00:00:00Z Toye, Ezekiel A. Wistendahl, Warren A. http://hdl.handle.net/1811/5705 Book Reviews Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5705 1972-07-01T00:00:00Z http://hdl.handle.net/1811/5704 Forest Communities of South Bass Island, Ohio Hamilton, Ernest S.; Forsyth, Jane L. Distribution of the tree species in present-day woodlots on South Bass Island appears to be related mainly to the stage in succession, which apparently correlates directly with the length of time available for reforestation since the initial extensive cutting. Such reforestation has occurred primarily in places where bedrock is so shallow that the land has been rejected for vineyard use or for human development. Substrate apparently does not control the distribution of the tree species, as bedrock throughout the forested areas of the Island, with one exception, is uniformly Silurian Put-in-Bay Dolomite, which is very shallow and locally exposed, and in which Romeo (Randolph) soils have been developed. The exception is the Box Elder-Green Ash woods, located on the northeast end of the Island, where bedrock is unusually deep (17 1/2 feet) and is covered by till, in which Hoytville (Catawba loam) soils have been formed. Six arborescent community types are recognized in the Island's remaining woodlots, the distributions of which have been mapped. Earliest in successional development of the communities is Young Hackberry, represented by Miller's Woods, followed by Hackberry- Blue Ash, represented by woodlots north of the lighthouse. Also early in succesion are the Box Elder-Green Ash community, as found on the northeast end of the Island, and the Cedar woods, represented by Heineman's Woods, which owes its great abundance of cedar to intensive grazing during the mid-1940's. A more mature type is the Sugar Maple-Hackberry-Basswood community, represented by Victory Woods and Cooper's Woods, and most mature of all is the Maple-Oak-Hickory type, as found in Duff's Woods. The more mature woodlots on the Island, where the dark, organic-rich Romeo soils are relatively thick, are characterized by a predominance of Acer saccharum in all size classes. Next in importance is Celtic occidentalis, which is present in most woods, but which predominates only in submature woods with abundant dolomite bedrock outcrops, where the Romeo soils are thinner. Tilia americana is usually third in importance, although its values are normally much lower than are those of the two dominant species, and it is generally represented by only a few large trees and no saplings. Other species, such as Prunus serotina, Morus alba, Juniperus virginiana, Fraxinus quadrangulata, Ostrya virginiana, Ulmus rubra, and Quercus muehlenbergii, have far lower importance values. Of these, the first four are regarded as successional, the first-named species being the earliest in the successional sequence, and the last four are considered to be minor members of the mature community. The scattered individuals of oaks (Quercus alba and Q. rubra) and hickories (Carya sp.) which occur in the Maple-Oak-Hickory community are the most difficult to explain, because of their limited distribution and because of the lack of any apparent correlation between their occurrence and either the substrate or the successional sequence which appears to control the distribution of the rest of the tree species. These oaks and hickories are believed to represent the normal climax associates of such stands, interpreted to occur in such restricted numbers only because of the extreme favorableness of the dark, organicrich soil on the shallow dolomite bedrock for Acer saccharum. Author Institution: Department of Biology and Geology, Bowling Green State University, Bowling Green, Ohio 43403 Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5704 1972-07-01T00:00:00Z Hamilton, Ernest S. Forsyth, Jane L. http://hdl.handle.net/1811/5703 Aeshna Tuberculifera Walker, a New Ohio Record Restifo, Robert A. Author Institution: Department of Entomology, The Ohio State University, Columbus, Ohio 43210 Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5703 1972-07-01T00:00:00Z Restifo, Robert A. http://hdl.handle.net/1811/5702 Body Form and Gait in Terrestrial Vertebrates Walker, Warren F., Jr. Author Institution: Department of Biology, Oberlin College, Oberlin, Ohio 44074 Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5702 1972-07-01T00:00:00Z Walker, Warren F., Jr. http://hdl.handle.net/1811/5701 Front Matter Sat, 01 Jul 1972 00:00:00 GMT http://hdl.handle.net/1811/5701 1972-07-01T00:00:00Z