Virtual Special Issue: JPR Articles of Karl E. Havens III
In this virtual issue, we have gathered a collection of articles authored or co-authored by Karl Havens in JPR. It is our tribute to an outstanding scientist and, especially, his dedicated service to JPR as an Associate Editor from 2015, until his sudden passing in April 2019. The career and accomplishments of Karl Havens have been kindly summarized in the Obituary by Edward J. Phlips.
The collection of 15 articles, published from 1989 to 2016, represents a sample of his research that focused on factors governing the community composition and activities of planktonic communities of lakes. We trust that these articles will continue to be of value and interest in the years to come.
Karl Havens, 1958–2019
How important is bacterial carbon to planktonic grazers in a turbid, subtropical lake?
Kirsten Work, Karl Havens, Bruce Sharfstein, and Therese East
Relationships between phytoplankton dynamics and the availability of light and nutrients in a shallow sub-tropical lake
Edward J. Philips, Mary Cichra, Karl Havens, Charles Hanton, Susan Badylak, Beate Rueter, Mike Randall, and Phyllis Hansen
Effects of climate variability on cladoceran zooplankton and cyanobacteria in a shallow subtropical lake
Karl E. Havens, Rolland S. Fulton, III, John R. Beaver, Erin E. Samples, and James Colee
Hurricane effects on the planktonic food web of a large subtropical lake
Karl E. Havens, John R. Beaver, Dale A. Casamatta, Therese L. East, R. Thomas James, Paul Mccormick, Edward J. Phlips, and Andrew J. Rodusky
Plankton biomass partitioning in a eutrophic subtropical lake: comparison with results from temperate lake ecosystems
Karl E. Havens, John R. Beaver, and Therese L. East
Zooplankton grazing on bacteria and cyanobacteria in a eutrophic lake
Kirsten A. Work and Karl Havens
Relative efficiencies of carbon transfer from bacteria and algae to zooplankton in a subtropical lake
Karl E. Havens, Kirsten A. Work, and Therese L. East
Carbon dynamics in the 'grazing food chain' of a subtropical lake
Karl E. Havens and Therese L. East
Phytoplankton and periphyton responses to in situ experimental nutrient enrichment in a shallow subtropical lake
Karl E. Havens, Therese L. East, Richard H. Meeker, William P. Davis, and Alan D. Steinman
Uptake of dissolved nitrogen by phytoplankton in a eutrophic subtropical lake
Binhe Gu, Karl E. Havens, Claire L. Schelske, and Barry H. Rosen
Increased transparency due to changes in the algal size spectrum during experimental acidification in mesocosms
Karl E. Havens and Robert T. Heath
Seasonal succession in the plankton of a naturally acidic, highly humic lake in Northeastern Ohio, USA
Karl E. Havens, III
Acid and aluminum effects on osmoregulation and survival of the freshwater copepod Skistodiaptomus oregonensis
Karl E. Havens
Acidification effects on the plankton size spectrum: an in situ mesocosm experiment
Karl E. Havens
Fish-induced sediment resuspension: effects on phytoplankton biomass and community structure in a shallow hypereutrophic lake
Karl E. Havens
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