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Ohio Journal of Science: Volume 108, Issue 3 (June, 2008)

Mostrando recursos 1 - 7 de 7

  1. Back Matter


  2. Methicillin-Resistant Staphylococcus aureus Among Younger Population in Northeastern Ohio

    Nasr, Payman; Delorme, Thierry; Rose, Stacy; Senita, Julie; Callahan, Cynthia
    The Ashtabula County Medical Center (ACMC), a 241-bed medical center in Ashtabula County, Ohio, has been providing inpatient and outpatient services for a portion of Northeastern Ohio for over a century. In the current report, we have investigated the rate of Methicillin-resistant Staphylococcus aureus (MRSA) occurrence among the younger population (less than 25 years of age) who sought medical attention at ACMC emergency room or one of its outpatient-affiliates (e.g. physician’s office or clinics) from January 2006 to December 2007. Here, we report a significant increase in incidence of MRSA among patients six to 25 years of age during this time...

  3. Variation in Resistance of Experienced and Naïve Seedlings of Jewelweed (Impatiens capensis) to Invasive Garlic Mustard (Alliaria petiolata)

    Cipollini, Kendra A.; Hurley, Sophie L.
    The invasive species garlic mustard, Alliaria petiolata, has negative impacts on understory forest species in the Midwest. Plants that coexist with A. petiolata in the field may show resistance to its negative effects as a result of natural selection. In a growth room experiment, we investigated if naïve and experienced seedlings of impatiens capensis vary in their response to the presence of A. petiolata. Impatiens capensis individuals from areas without A. petiolata (i.e., naïve plants) and from nearby areas with A. petiolata (i.e., experienced plants) were collected from the field and were then grown with A. petiolata in pots for...

  4. Discovery of a Population of Cyclonaias tuberculata (Rafinesque), the Purple Wartyback Mussel (Bivalvia: Unionidae), in the Olentangy River, Delaware County, Ohio

    Bolton, Michael J.
    Freshwater mussels (Unionidae) were collected from the Olentangy River upstream from the city of Delaware, Delaware County, Ohio to verify the existence of a population of Cyclonaias tuberculata (Rafinesque), the Purple Wartyback Mussel. Eleven live specimens of C. tuberculata were found, including two juveniles, in the second and third riffle complexes downstream from the Panhandle Road dam (40°19’21.03”N, 83°4’13.68”W). This is the first time that this species has been found alive in the Olentangy River basin since the 1800s.

  5. Patterns of Dissolved Oxygen, Productivity and Respiration in Old Woman Creek Estuary, Erie County, Ohio during Low and High Water Conditions

    Cornell, Linda P.; Klarer, David M.
    Old Woman Creek wetland is composed of a stream and freshwater estuary and may act as a sink or transformer of nutrients entering Lake Erie. Primary productivity and respiration are indicators of ecosystem level trophic conditions and may be linked to the estuary’s effectiveness as a nutrient sink or transformer. Old Woman Creek National Estuarine Research Reserve has been collecting water chemistry data at 15 minute intervals using data loggers since 1995. Both diel and seasonal trends in water temperature, dissolved oxygen, and water depth at selected sites in the creek and estuary were related to physical and biological processes. Daily...

  6. Population Status and Trends of Northern Bobwhite (Colinus virginianus) in Ohio: 1984- 2004

    Spinola, Romeo M.; Gates, Robert
    We assessed the status and trends of northern bobwhite (Colinus virginianus) populations in Ohio from 1984-2004 (21 years). Bobwhite abundance indices were obtained from surveys conducted on secondary roads. The number of roads surveyed per year ranged from 69 to 209 (with 12 stops each). We used Poisson regression with generalized estimating equations and a Generalized Additive Model to analyze bobwhite population trends. Bobwhite populations in Ohio declined 9.3% / year (95% CI=7.3%-11.2%). Overall, populations declined 76% (95% CI=68-82%) over the 21-year period. We also compared annual trends during the same period among 10 weather regions in the state. At least...

  7. Front Matter


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