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The role of infochemicals in lake plankton crustacean behavior and predator-prey relations
Ringelberg, J. (1999). The role of infochemicals in lake plankton crustacean behavior and predator-prey relations, in: von Pauwel Klein, J.C. et al. (Ed.) (2000). The biodiversity crisis and Crustacea: Proceedings of the 4th International Crustacean Congress, Amsterdam, Netherlands, 20-24 July, 1998, volume 2. pp. 161-175
In: von Vaupel Klein, J. Carel; Schram, F.R. (Ed.) (2000). The Biodiversity Crisis and Crustacea: Proceedings of the Fourth International Crustacean Congress, Amsterdam, Netherlands, 20-24 July 1998, volume 2. Crustacean Issues, 12. A.A. Balkema: Rotterdam, Brookfield. ISBN 90-5410-478-3. XIV, 848 pp., more
In: Schram, F.R. (Ed.) Crustacean Issues. Balkema/CRC Press/Taylor & Francis: Rotterdam. ISSN 0168-6356, more

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    Marine

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  • Ringelberg, J.

Abstract
    Defenses in Daphnia (Cladocera) against invertebrate and vertebrate predation are predominantly conditionally induced. Chemical substances or kairomones, associated with the predators, suffice to cause changes in morphology, life history or behavior. The extent of these adaptations is variable and genotype specific. Trade-offs and a variable environment are important to understand why induced behavior is common. An example of diel vertical migration (DVM) and the underlying photobehavior is discussed. In the given example, DVM occurs during a short period of heavy predation by juvenile fish. Costs are high and explain why it is conditionally induced. The Daphnia population complex consists of many clones of which dominance changes rapidly. Infochemicals, like kairomones, are important factors that determine food web relations and community composition.

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