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The KnowledgeBank at OSU (80.208 recursos)

Knowledge Bank contains collections of presentations, publications and reports related to Ohio State University.

Ohio Journal of Science: Volume 108, Issue 5 (December, 2008)

Mostrando recursos 1 - 7 de 7

  1. Back Matter

  2. Book Reviews

  3. Long-term Spread and Control of Invasive, Common Reed (Phragmites australis) in Sheldon Marsh, Lake Erie

    Back, Christina L.; Holomuzki, Joseph R.
    In 2001 the Ohio Department of Natural Resources (ODNR) initiated a long-term, herbicide-spraying control program of Phragmites australis (common reed), a highly invasive perennial grass, in Sheldon Marsh on Lake Erie’s south shoreline. Controlling reed is a priority of many wetland managers because habitat homogenization from reed expansion may adversely affect wildlife habitat and waterfowl. Reed has historically been a minor part of wetland plant communities of the Laurentian Great Lakes but has spread rapidly since 2000 when lake water levels dropped. Here we examined ODNR records and aerial photographs using ArcGIS software and planimetry from 2000 to 2007 to...

  4. Parvodinium gen. nov. for the Umbonatum Group of Peridinium (Dinophyceae)

    Carty, Susan
    Peridinium is a genus of freshwater thecate dinoflagellate. Because it was one of the earliest named genera (Ehrenberg 1832), many species placed in it were later removed to other genera. Genera continue to be extracted and Peridinium, while more closely defined, still harbors groups of species unlike the type species, P. cinctum. It is the goal of this paper to remove one of the most dissimilar groups, the Umbonatum Group. Peridinium cinctum has no apical pore, three apical intercalary plates and five cingular plates. Species in the Umbonatum Group have an apical pore, two apical intercalary plates and six cingular plates warranting...

  5. Algal Community Habitat Preferences in Old Woman Creek Wetland, Erie County, Ohio

    Reeder, Brian C.; Binion, Brian M.
    Algal communities were examined from May through August 1993 in Old Woman Creek National Estuarine Research Reserve and State Natural Area and Preserve, a shallow (<0.5 meter deep) 56 ha hypereutrophic wetland, located in Erie County along the south-central shore of Lake Erie. Most of the wetland is open water; the dominant macrophyte, Nelumbo lutea, covers about 30% of the surface area. Therefore, open water algae can be the primary autotroph contributing to the wetland’s energy flow. Inflow regions are the primary collector of watershed agricultural runoff, and therefore have greater concentrations of nutrients than waters closer to Lake Erie. We...

  6. Benthic Algae of Lake Erie (1865-2006): A Review of Assemblage Composition, Ecology, and Causes and Consequences of Changing Abundance

    Stewart, Timothy W.; Lowe, Rex L.
    Peer-reviewed literature and published reports were used to summarize knowledge of benthic algal assemblage composition and ecology in Lake Erie, and causes and consequences of temporal variation in algal abundance. Macroalgal assemblages in rocky littoral and soft substrate habitats have been reasonably well described and studied, as has the epiphyte/metaphyte assemblage associated with rocky littoral macroalgae. In contrast, little information exists for non-epiphytic microalgae in littoral habitat. During the period when algal records were reported (1865-2006), the rocky littoral macroalgal assemblage was often dominated by the chlorophyte genera Cladophora and Ulothrix and the rhodophyte Bangia, whereas the charophytes Chara and Nitella were...

  7. Front Matter

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