2018
DOI: 10.1002/lom3.10269
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One man's trash is another man's treasure—the effect of bacteria on phytoplankton–zooplankton interactions in chemostat systems

Abstract: Chemostat experiments are employed to study predator–prey and other trophic interactions, frequently using phytoplankton–zooplankton systems. These experiments often use population dynamics as fingerprints of ecological and evolutionary processes, assuming that the contributions of all major actors to these dynamics are known. However, bacteria are often neglected although they are frequently present. We argue that even without external carbon input bacteria may affect the experimental outcomes depending on ex… Show more

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Cited by 13 publications
(21 citation statements)
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“…Taking a more comprehensive approach, we proposed the average warping distance AWD and the maximum warping distance MWD to measure the distance between the pre‐ and post‐perturbation attractors and quantify the resistance of the system against press perturbations. These account also for more complex changes in the shape of the attractor, which otherwise could unnoticedly become highly complex, for example, multiple local maxima of one species within one population cycle could arise (as e.g., in Raatz, Schälicke, Sieber, Wacker, & Gaedke, ).…”
Section: Discussionmentioning
confidence: 99%
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“…Taking a more comprehensive approach, we proposed the average warping distance AWD and the maximum warping distance MWD to measure the distance between the pre‐ and post‐perturbation attractors and quantify the resistance of the system against press perturbations. These account also for more complex changes in the shape of the attractor, which otherwise could unnoticedly become highly complex, for example, multiple local maxima of one species within one population cycle could arise (as e.g., in Raatz, Schälicke, Sieber, Wacker, & Gaedke, ).…”
Section: Discussionmentioning
confidence: 99%
“…These account also for more complex changes in the shape of the attractor, which otherwise could unnoticedly become highly complex, for example, multiple local maxima of one species within one population cycle could arise (as e.g., in Raatz, Schälicke, Sieber, Wacker, & Gaedke, 2018).…”
Section: Discussionmentioning
confidence: 99%
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“…It is known from previous studies that the diet of B. calyciflorus includes not only algae but also bacteria to some extent. Bacteria may be utilized as food (Raatz et al, 2018) and, moreover, it seems likely that Brachionus can also ingest larger detrital particles and bacterial aggregates, deriving nutritional benefit from those cells as well (Starkweather et al, 1979).…”
Section: Ingestion Of Ms Aggregated With Biogenic Particlesmentioning
confidence: 99%
“…It seems possible that these positive effects are due to the ability of zooplankton to feed on bacteria (Starkweather, Gilbert, & Frost, ); enzyme secretion by bacteria (Marques et al, ); nutrient recycling by bacteria (Raatz, Schaelicke, Sieber, Wacker, & Gaedke, ); antagonism against pathogenic organisms (Grotkjær et al, ); and water quality improvement by removal of toxic substances (Loka et al, ; Verschuere et al, ). Previous studies tested both bacterial isolates (Harzevili et al, ; Mejias et al, ) and commercially available probiotics (Loka et al, ; Zink et al, ).…”
Section: Introductionmentioning
confidence: 99%