Original paper

A laboratory study of functional response of Leptodora kindtii to some cladoceran species and copepod nauplii

Pichlová, Radka; Vijverberg, Jacobus

Archiv für Hydrobiologie - Hauptbände Volume 150 Number 4 (2001), p. 529 - 544

35 references

published: Feb 15, 2001

DOI: 10.1127/archiv-hydrobiol/150/2001/529

BibTeX file

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Feeding of the predatory cladoceran Leptodora kindtii was studied under laboratory conditions. Functional responses for two size classes of the predator to five prey taxa (Daphnia galeata, Diaphanosoma brachyurum, Ceriodaphnia pulchella, Bosmina coregoni and copepod nauplii) in five prey concentrations were determined and further analysed. Small juvenile Leptodora showed a Hollings' type I functional response in all five experiments, whereas large adult Leptodora showed in 3 out of 5 cases a Hollings' type II functional response. The possible significance of these differences is discussed. For all prey categories, the ratio of the basket length of Leptodora to the prey body length considerably influenced maximum predation rates. Prey taxa show different vulnerabilities for predation by Leptodora, hence, during periods of abundance this predator may have a significant structuring effect on the zooplankton community.


Predation ratespredator-sizeprey-size