Douglas A. Leeper

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Predation on nanoflagellates by metazoan zooplankton was investigated using a radioactively labeled flagellate, Poterioochromonas malhamensis, as a tracer cell in laboratory incubations of freshly collected plankton assemblages. Experiments conducted in the fall, winter and spring indicated that rotifers dominated the grazing on nanoflagellates by metazoans(More)
Elevations of six biological indicators of historic water levels and hydric soils at twelve isolated Taxodium ascendens dominated wetlands in west-central Florida, USA were compared with long-term surface-water elevations to evaluate use of the indicators for inferring wetland hydrology when adequate water-level data are unavailable. Indicators included the(More)
This study tested the hypothesis that lake augmentation with well water impacts the distribution and abundance of aquatic plants in lakes. Water chemistry was measured from 14 wells, 14 augmented lakes, and 14 lakes without augmentation. Nine in-lake aquatic macrophyte abundance and species distribution metrics were measured in all lakes. Net photosynthetic(More)
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