David R. Barton

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This paper presents an efficient, effective algorithm for decomposing a polynomial <italic>f(x)</italic> into an irreducible representation of the form <italic>f(x) &equil; g<subscrpt>1</subscrpt>(g<subscrpt>2</subscrpt>( ... g<subscrpt>n</subscrpt>(x) ... ))</italic>. This decomposition is used as an aid in solving high degree metacyclic equations in(More)
Dreissenid mussels are notorious invasive organisms whose establishment is associated with large, ecosystem-scale changes to patterns of productivity in aquatic systems. We investigated how localized impacts of dreissenids affect the potential of littoral substrates to support primary and secondary production using in situ incubations and comparisons of(More)
Note: Affiliations are listed for identification purposes only. OVERVIEW There is widespread agreement that the Great Lakes presently are exhibiting symptoms of extreme stress from a combination of sources that include toxic contaminants, invasive species, nutrient loading, shoreline and upland land use changes, and hydrologic modifications. Many of these(More)
We investigated how establishment of invasive dreissenid mussels impacted the structure and energy sources of the littoral benthic food web of a large temperate lake. We combined information about pre- and postdreissenid abundance, biomass, and secondary production of the littoral benthos with results of carbon and nitrogen stable isotope analysis of(More)
Two adjacent bays in a large oligotrophic lake (Georgian Bay, Lake Huron) were compared to determine how the inputs from relatively pristine, but moderately humic, tributaries may influence phytoplankton, nutrients and system metabolism. Dissolved organic carbon (DOC) concentrations decreased from 4 to 5 gC m−3 at inner sites to 2 gC m−3 or less at outer(More)
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:-Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.-Redistributions in binary form must reproduce the above copyright notice, this list of(More)
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