Oviposition behavior of the littoral rotifer Euchlanis dilatata

  • Elizabeth J. Walsh
Conference paper
Part of the Developments in Hydrobiology book series (DIHY, volume 52)


Several components of egg-laying behavior in 3 clones of E. dilatata were investigated. Using nearest-neighbor analyses it was shown that individual animals lay their eggs randomly within culture dishes in the absence of an artificial substrate while eggs laid in the presence of a substrate are clumped in 2 of the 3 clones studied. Animals preferentially oviposited on artificial substrates containing eggs when given a choice between artificial substrates with and without eggs of conspecifics. When given a choice of natural substrates, animals consistently laid more eggs on the plant species from which they were collected. This preference persisted for 2 generations after animals had been removed from plants. In addition, observations of neonate hatching behavior demonstrated that neonates often spend relatively long times in the immediate vicinity of hatching.

Key words

oviposition behavior Euchlanis dilatata 


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Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • Elizabeth J. Walsh
    • 1
  1. 1.Department of ZoologyOregon State UniversityCorvallisUSA

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