• Why do ladybirds (Coleoptera: Coccinellidae) cannibalize?

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jbsc/016/03/0103-0109

    • Keywords

       

      Ladybirds; aphidophagous coccinellids; cannibalism

    • Abstract

       

      Cannibalism of eggs by larvae ofAdalia bipunctata, an aphidophagous species of ladybirds, is important for survival when aphids are scarce. Ladybirds survive longer by eating eggs of their own species rather than aphids. Since it costs less, in terms of larval growth, to eat eggs rather than aphids, cannibalism has a strong advantage under conditions of prey scarcity.

    • Author Affiliations

       

      B K Agarwala1 2

      1. Department of Biological Sciences, University of East Anglia, Norwich - NR4 7TJ, England
      2. Department of Life Science, Tripura University, Agartala - 799 004, India
    • Dates

       
  • Journal of Biosciences | News

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