http://hdl.handle.net/1811/22125 Tue, 18 Jun 2013 23:59:56 GMT 2013-06-18T23:59:56Z http://hdl.handle.net/1811/23578 Back Matter Wed, 01 Sep 1993 00:00:00 GMT http://hdl.handle.net/1811/23578 1993-09-01T00:00:00Z http://hdl.handle.net/1811/23577 Book Reviews Wed, 01 Sep 1993 00:00:00 GMT http://hdl.handle.net/1811/23577 1993-09-01T00:00:00Z http://hdl.handle.net/1811/23576 Brief Note: First Report of Lepidodermella squamata (Gastrotricha: Chaetonotida) from Lake Erie Evans, Wayne A. In July 1992 a population of the freshwater chaetonotid gastrotrichLepidodermella squamata was discovered in a protected beach on South Bass Island in Put-in-Bay, Lake Erie, OH. L. squamata is most commonly reported from vegetated substrates in freshwater habitats in Europe and North and South America. This is the first report from Lake Erie and from the lentic interstitial habitat in North America. Author Institution: The Franz Theodore Stone Laboratory, The Ohio State University Wed, 01 Sep 1993 00:00:00 GMT http://hdl.handle.net/1811/23576 1993-09-01T00:00:00Z Evans, Wayne A. http://hdl.handle.net/1811/23575 Brief Note: Odonata Records for Northwest Ohio Moody, Dwight L. Ischnura kellicotti, the lilypad forktail damselfly, was found on 3 July 1992 at the Mud Lake Bog Nature Preserve, Williams County, OH. This is the first recorded collection/identification for this species in Ohio. Additionally, eight dragonfly species collected in four counties and seven damselfly species collected in four counties comprise 18 Odonata county records for northwest Ohio. Author Institution: Biology Department, The University of Findlay Wed, 01 Sep 1993 00:00:00 GMT http://hdl.handle.net/1811/23575 1993-09-01T00:00:00Z Moody, Dwight L. http://hdl.handle.net/1811/23574 An Annotated List of New Seasonal and County Records for Ohio Dragonflies (Odonata) Alrutz, Robert W. This report is a contribution to the Ohio Dragonfly Survey. It includes 147 new county records involving 40 Ohio counties plus 17 new seasonal records together with notes on the ecology and behavior of selected species. These records and observations are based upon specimens collected in 50 Ohio counties during the period May through October, 1991 and 1992. Author Institution: Biology Department, Denison University Wed, 01 Sep 1993 00:00:00 GMT http://hdl.handle.net/1811/23574 1993-09-01T00:00:00Z Alrutz, Robert W. http://hdl.handle.net/1811/23573 Predation by Cats on the Unique Endemic Lizard of Socorro Island (Urosaurus auriculatus), Revillagigedo, Mexico Arnaud, Gustavo; Rodríguez, Antonio; Ortega-Rubio, Alfredo; Alvarez-Cárdenas, Sergio During 1990 the distributions of the endemic lizard (Urosaurus auriculatus^ and the feral cat (Felts catus) of Socorro Island were observed and scats of the last species were collected. A total of 46 cat scats were analyzed, showing that lizards were an important prey item, varying in frequency from 33.33% in February to 66.66% in November. Because of the impact of sheep (Ovis aries) on the natural vegetation and because of the impact of cat predation, we recommend that a plan be developed for the removal of exotic species and the restoration of natural vegetation to Socorro Island. Author Institution: Centro de Investigaciones Biológicas de Baja California Sur, A.C. Wed, 01 Sep 1993 00:00:00 GMT http://hdl.handle.net/1811/23573 1993-09-01T00:00:00Z Arnaud, Gustavo Rodríguez, Antonio Ortega-Rubio, Alfredo Alvarez-Cárdenas, Sergio http://hdl.handle.net/1811/23572 Decline in the Index of Biotic Integrity of Delaware Run, Ohio, over 50 Years Gatz, A. John; Harig, Amy L. The purpose of this study was to compare the present biotic integrity of a central Ohio headwater stream with the conditions in 1940. Major changes in fish faunal composition occurred in Delaware Run over this time period. Only 33% (11 of 33) of the totalspecies collected were present in both years. Indices of biotic integrity (IBI) estimated for the 1940 data indicated that the stream was in good condition then, whereas it is in fair to poor condition now. The primary differences are as follows: 1) an increase in abundance of tolerant species suggesting an increase in general pollution, 2) a decrease in percentage of insectivores together with an increase in percentage of generalists suggesting a reduction of the insect food base, 3) a decrease in the number of simple lithophilic spawners suggesting degradation of reproductive habitat through siltation, and 4) an increase in percentage of pioneering fishes suggesting increased temporal stresses in the stream. Although the stream was not in pristine condition in 1940, it has been degraded further in the past half century. Author Institution: Department of Zoology, Ohio Wesleyan University Wed, 01 Sep 1993 00:00:00 GMT http://hdl.handle.net/1811/23572 1993-09-01T00:00:00Z Gatz, A. John Harig, Amy L. http://hdl.handle.net/1811/23571 Research Review: Evolution of Genetic Concepts for Ohio Soils Smeck, Neil E. The earliest genetic concepts of Ohio soils stressed the occurrence of gray eluvial and brown, Fe and Al rich subsoils. Although Conrey recognized clay eluviation-illuviation as an important genetic process as early as the 1930s, clay translocation was not emphasized and documented until the late 1950s and early 1960s. The genetic role of clay eluviation-illuviation was incorporated into Soil Taxonomy, which was adopted as the official USDA soil classification system in 1965, at the Order level establishing the class of Alfisols. In addition, criteria for the identification of argillic horizons were established. Since then studies have shown that the accumulation of clay in the B horizons of Ohio soils is not solely a result of clay illuviation. Subsoil clay accumulation is also attributable to the concentration of parent material clay from carbonate dissolution andiw situ clay formation. Acreage data generated from the Ohio Cooperative Soil Survey program indicate that 75% of Ohio soils contain B horizons with sufficient illuvial clay to qualify as argillic horizons and 62% of the soils in Ohio classify as Alfisols. Author Institution: Department of Agronomy, The Ohio State University, and The Ohio Agricultural Research and Development Center Wed, 01 Sep 1993 00:00:00 GMT http://hdl.handle.net/1811/23571 1993-09-01T00:00:00Z Smeck, Neil E. http://hdl.handle.net/1811/23570 Depositional Environments of the Pictured Cliffs Sandstone, Late Cretaceous, near Durango, Colorado Tokar, Frank J., Jr.; Evans, James E. The Pictured Cliffs Sandstone was deposited in the northwestern part of the San Juan Basin (Colorado-New Mexico) during the last regression of the Cretaceous Interior Seaway. The unit is generally interpreted as deltaic or marginal marine; however, outcrops near Durango, CO, consist of repetitive sequences of hummocky stratified (HS) sandstone. Each HS sequence consists of a scoured surface overlain by hummocky-stratified, fine-grained sandstone 20-50 cm thick, overlain by ripple- to planarlaminated, bioturbated, very fine-grained sandstone to mudstone. Amalgamated HS sequences are as much as 7 m thick. Author Institution: Department of Geology, Bowling Green State University Wed, 01 Sep 1993 00:00:00 GMT http://hdl.handle.net/1811/23570 1993-09-01T00:00:00Z Tokar, Frank J., Jr. Evans, James E. http://hdl.handle.net/1811/23569 Technology: Tomorrow's Determinate Janson, Richard W. Author Institution: Department of Geography, Kent State University Wed, 01 Sep 1993 00:00:00 GMT http://hdl.handle.net/1811/23569 1993-09-01T00:00:00Z Janson, Richard W. http://hdl.handle.net/1811/23568 Front Matter Wed, 01 Sep 1993 00:00:00 GMT http://hdl.handle.net/1811/23568 1993-09-01T00:00:00Z