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Behavioral Ecology and Sociobiology

, Volume 18, Issue 1, pp 15–18 | Cite as

Sex, cannibalism and sticklebacks

  • F. G. Whoriskey
  • G. J. FitzGerald
Article
  • 100 Downloads

Summary

Two closely related species of sticklebacks (Pisces:Gasterosteidae), breeding in the same site at the same time, showed different patterns of egg cannibalism. In Gasterosteus aculeatus the intensity of cannibalism was density-dependent and females were the most important cannibals. In G. wheatlandi cannibalism was not density-dependent and males ate more eggs than females. This study indicates that sex-specific patterns of cannibalism can differ widely between species despite their similar ecology, and it provides evidence inconsistent with a currently popular explanation for egg cannibalism.

Keywords

Related Species Similar Ecology Popular Explanation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • F. G. Whoriskey
    • 1
  • G. J. FitzGerald
    • 1
  1. 1.Départment de BiologieUniversité LavalSte-FoyCanada

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