Behavioral Ecology and Sociobiology

, Volume 52, Issue 1, pp 59–65 | Cite as

Worker rank, reproductive status and cuticular hydrocarbon signature in the ant, Pachycondyla cf. inversa

  • Jürgen Heinze
  • Bernhard Stengl
  • Matthew F. Sledge
Original Article

Abstract.

Workers in de-queened colonies of the neotropical ant, Pachycondyla cf. inversa, form linear or near-linear dominance hierarchies by violent antennation and biting. In these rank orders, social status and ovarian activity are on average highly correlated. Whereas the presence of a fertile queen appears to be sufficient to prevent workers from laying eggs, fertile workers do not completely control reproduction by their nestmates, suggesting that workers are able to differentiate between an egg-laying queen and an egg-laying worker. Here we show that the composition of cuticular hydrocarbons of egg-laying workers is quantitatively and qualitatively different from that of non-laying workers and resembles the hydrocarbon blend of the queen but does not completely match it. Furthermore, using discriminant analysis, it was possible to distinguish workers with four different classes of ovarian development based only on their cuticular hydrocarbon profiles. Fertility-associated changes in cuticular hydrocarbons may play an important role in the behavioural regulation of reproduction in this ant.

Reproductive conflict Dominance hierarchy Fertility signal Cuticular hydrocarbons Formicidae 

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  • Jürgen Heinze
    • 1
  • Bernhard Stengl
    • 2
  • Matthew F. Sledge
    • 3
  1. 1.Biologie I, Universität Regensburg, 93040 Regensburg, Germany
  2. 2.Zoologie I, Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
  3. 3.Dipartimento di Biologia Animale e Genetica, Università di Firenze, Via Romana 17, 50125, Florence, Italy

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