Competitive Mating Success and Attractiveness of Sterile and Fertile Males of Drosophila montana

Authors

  • Anneli Hoikkala,

    Corresponding author
    1. Department of Genetics, University of Oulu, Oulu
      Department of Genetics, University of Oulu, SF 90570 Oulu, Finland.
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    • 3

      Hoikkala, A. & Liimatainen, J. 1992: Competitive mating success and attractiveness of sterile and fertile males of Drosophila montana. Ethology 91, 122–133.

  • Jaana Liimatainen

    1. Department of Genetics, University of Oulu, Oulu
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    • 3

      Hoikkala, A. & Liimatainen, J. 1992: Competitive mating success and attractiveness of sterile and fertile males of Drosophila montana. Ethology 91, 122–133.


Department of Genetics, University of Oulu, SF 90570 Oulu, Finland.

Abstract

The attractiveness and the mating success of fertile (normal and brownie, br) and sterile (rudimentary testis, rt) Drosophila montana males were studied in female-choice experiments (one female + two males). The normal males courted the sterile rt males nearly as much as they courted the females, while they courted other males less frequently. The females required a long courtship with the rt males and accepted them as their mating partner less often than normal males.

The courtship behaviour of normal, br and rt males was recorded in single pair situations with a normal female. The courtships of the males of all types proceeded in a similar manner, but the successful courtships of the rt males included more licking and touching than those of the normal and br males. The licking and touching periods are probably the critical phases at which the females are able to detect differences in male fertility.

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