Search Results - "Benndorf, Jürgen"

Top‐down and bottom‐up control of periphyton by benthivorous fish and light supply in two streams by Winkelmann, Carola, Schneider, Jana, Mewes, Daniela, Schmidt, Susanne I, Worischka, Susanne, Hellmann, Claudia, Benndorf, Jürgen

“…We conducted a paired large‐scale predation experiment over 32 months in two streams being seasonally shaded by deciduous riparian trees, using the…”
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Food-web-mediated effects of climate warming: consequences for the seasonal Daphnia dynamics by WAGNER, ANNEKATRIN, HÜLSMANN, STEPHAN, HORN, WOLFGANG, SCHILLER, THOMAS, SCHULZE, TORSTEN, VOLKMANN, SVEN, BENNDORF, JÜRGEN

“…Summary 1. In an extensive field study, we tested the hypothesis that warming during a sensitive period alters trophic interactions in pelagic food webs of…”
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Impact of Inorganic Carbon Availability on Microcystin Production by Microcystis aeruginosa PCC 7806 by Jähnichen, Sabine, Ihle, Tilo, Petzoldt, Thomas, Benndorf, Jürgen

“…Batch culture experiments with the cyanobacterium Microcystis aeruginosa PCC 7806 were performed in order to test the hypothesis that microcystins (MCYSTs) are…”
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Biomanipulation of lake ecosystems: successful applications and expanding complexity in the underlying science by Mehner, Thomas, Benndorf, Jürgen, Kasprzak, Peter, Koschel, Rainer

“…SUMMARY 1. To illustrate advances made in biomanipulation research during the last decade, seven main topics that emerged after the first biomanipulation…”
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Top-down control of phytoplankton: the role of time scale, lake depth and trophic state by Benndorf, JÜrgen, Böing, Wiebke, Koop, Jochen, Neubauer, Ivonne

“…SUMMARY 1. One of the most controversial issues in biomanipulation research relates to the conditions required for top‐down control to cascade down from…”
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Reduced drift activity of two benthic invertebrate species is mediated by infochemicals of benthic fish by Schäffer, Michael, Winkelmann, Carola, Hellmann, Claudia, Benndorf, Jürgen

“…Regulating mobility by actively entering the drift under imminent predation risk is an avoidance strategy employed by aquatic macroinvertebrate species that is…”
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Phosphorus reduction in a shallow hypereutrophic reservoir by in-lake dosage of ferrous iron by Deppe, Thomas, Benndorf, Jürgen

“…In Bautzen Reservoir (Germany), a technique of internally dosing iron compounds in combination with a local water column destratification was developed in…”
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Ecotechnology and Emission Control: Alternative or Mutually Promoting Strategies in Water Resources Management? by Benndorf, Jürgen

“…Beyond the traditional paradigm of reducing the loading of water‐bodies by pollutants, during the last four decades the new paradigm of ecotechnology developed…”
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A phenomenological approach shows a high coherence of warming patterns in dimictic aquatic systems across latitude by Wagner, Annekatrin, Hülsmann, Stephan, Paul, Lothar, Paul, Rüdiger J., Petzoldt, Thomas, Sachse, René, Schiller, Thomas, Zeis, Bettina, Benndorf, Jürgen, Berendonk, Thomas U.

“…To predict the coherence in local responses to large-scale climatic forcing among aquatic systems, we developed a generalized approach to compare long-term…”
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Arriving in better shape: Benthic Microcystis as inoculum for pelagic growth by Schöne, Katja, Jähnichen, Sabine, Ihle, Tilo, Ludwig, Frank, Benndorf, Jürgen

“…Changes of the benthic Microcystis community during the time of reinvasion and its influence on the planktonic inoculum were investigated in a laboratory…”
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Temperature impact on the midsummer decline of Daphnia galeata: an analysis of long-term data from the biomanipulated Bautzen Reservoir (Germany) by Benndorf, JÜrgen, Kranich, Johannes, Mehner, Thomas, Wagner, Annekatrin

“…1. The influence of water temperature on occurrence and duration of a midsummer decline (MSD) of Daphnia galeata was studied in the biomanipulated Bautzen…”
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Reduction of nutrient loading and biomanipulation as tools in water quality management: Long-term observations on Bautzen Reservoir and Feldberger Haussee (Germany) by Kasprzak, Peter, Benndorf, Jürgen, Gonsiorczyk, Thomas, Koschel, Rainer, Krienitz, Lothar, Mehner, Thomas, Hülsmann, Stephan, Schultz, Heinz, Wagner, Annekatrin

“…Long-term (1976-1999) biomanipulation in Bautzen Reservoir (BR) revealed that a combination of piscivore stocking and catch restrictions for piscivores led to…”
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Conditions for effective biomanipulation; conclusions derived from whole-lake experiments in Europe by Benndorf, Jürgen

“…Since indirect effects, feedback mechanisms and time lag play an important role in top-down manipulated food webs, conclusions regarding the reliability of…”
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Finding appropriate reference sites in large-scale aquatic field experiments by Schmidt, Susanne I, König-Rinke, Marie, Kornek, Katja, Winkelmann, Carola, Wetzel, Markus A, Koop, Jochen H. E, Benndorf, Jürgen

“…Defining the reference condition is one of the most critical aspects of ecosystem investigations since it describes the baseline against which the experimental…”
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Predation effects of benthivorous fish on grazing and shredding macroinvertebrates in a detritus-based stream food web by Winkelmann, Carola, Worischka, Susanne, Koop, Jochen H.E., Benndorf, Jürgen

“…We investigated lethal and sublethal predation effects of the benthivorous gudgeon ( Gobio gobio) on the grazing mayfly Rhithrogena semicolorata and the…”
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WAX AND WANE OF MICROCYSTIS (CYANOPHYCEAE) AND MICROCYSTINS IN LAKE SEDIMENTS: A CASE STUDY IN QUITZDORF RESERVOIR (GERMANY)1 by Ihle, Tilo, Jähnichen, Sabine, Benndorf, Jürgen

“…Benthic stages of the annual life cycle of the meroplanktonic cyanobacterium Microcystis spp. in relation to microcystin (MCYST) dynamics in sediments of a…”
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The importance of pre-reservoirs for the control of eutrophication of reservoirs by PÜTZ, K, BENNDORF, J

“…Pre-reservoirs are small reservoirs, with a water-retention time of a few days, that reduce the phosphorus input in main reservoirs. The process of phosphorus…”
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Influence of diet shifts in underyearling fish on phosphorus recycling in a hypertrophic biomanipulated reservoir by Mehner, Thomas, Mattukat, Frank, Bauer, Dirk, Voigt, Hanno, Benndorf, Jürgen

“…Summary 1. In addition to effects of direct predation by planktivorous fish, nutrient recycling by fish may also contribute to structuring foodwebs in lakes…”
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Climate-driven warming during spring destabilises a Daphnia population: a mechanistic food web approach by Wagner, Annekatrin, Benndorf, Jürgen

“…Temperature-driven changes in interactions between populations are crucial to the estimation of the impact of global warming on aquatic food webs. We analysed…”
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Reduction of Microcystis blooms in a hypertrophic reservoir by a combined ecotechnological strategy by Deppe, Thomas, Ockenfeld, Klaus, Meybohm, Andreas, Opitz, Michael, Benndorf, Jürgen

“…In Bautzen reservoir, a shallow, hypertrophic water in Eastern Saxony, biomanipulation led to structural changes in the phytoplankton community but did not…”
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