Advertisement

Behavioral Ecology and Sociobiology

, Volume 28, Issue 6, pp 391–396 | Cite as

Pre-mating sperm removal in the bushcricket Metaplastes ornatus Ramme 1931 (Orthoptera, Tettigonoidea, Phaneropteridae)

  • Dagmar von Helversen
  • Otto von Helversen
Article

Summary

Mating in the bushcricket Metaplastes ornatus Ramme 1931 entails a number of peculiar genital couplings that precede the transfer of the large spermatophore. During these “phase-I couplings,” the male introduces his specially structured subgenital plate into the female's genital chamber, performs back-and-forth movements, and turns her genital chamber inside out when he withdraws, whereupon the female carefully cleans her everted genital chamber with her mouthparts. During the last coupling (phase II) the male's subgenital plate is not introduced but the large spermatophore, which averages 22% of a male's body weight, is transferred. Counts of sperm in the spermathecae of females suggested that the phase-I couplings, which occur prior to spermatophore transfer, function to remove, or at least to reduce, the sperm of a female's previous mates. The form of the keel of the male's subgenital plate, its position within the female's genital tract during phase-I couplings, and the back-and-forth movements suggest that the male may stimulate release of sperm from the female's spermatheca by a mechanism similar to fertilization as eggs pass through the genital chamber during oviposition.

Keywords

Sperm Competition Genital Plate Genital Region Behav Ecol Subgenital Plate 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bowen BC, Codd CG, Gwynne DT (1984) The katydid spermatophore (Orthoptera: Tettigonidae): male nutritional investment and its fate in the mated female. Aust J Zool 32:23–31CrossRefGoogle Scholar
  2. Gerhardt U (1913) Copulation and Spermatophoren von Grylliden und Locustiden I/II. Zool Jahrb (Syst) 35:415–532Google Scholar
  3. Gerhardt U (1921) Neue Studien über Copulation und Spermatophoren bei Grylliden und Locustiden. Acta Zool (Stockholm) 2:1–35CrossRefGoogle Scholar
  4. Gwynne DT (1984) Male mating effort, confidence of paternity, and insect sperm competition. In: Smith RL (ed) Sperm competition and the evolution of animal mating systems. Academic Press, New York, pp 117–149CrossRefGoogle Scholar
  5. Gwynne DT (1986) Reply to: stepfathers in insects and their pseudo-parental investment. Ethology 71:74–77CrossRefGoogle Scholar
  6. Gwynne DT (1988) Courtship feeding in katydids benefits the mating male's offspring. Behav Ecol Sociobiol 23:373–377CrossRefGoogle Scholar
  7. Gwynne DT, Bowen BF, Codd CG (1984) The function of the katydid spermatophore and its role in fecundity and insemination (Orthoptera: Tettigonidae). Aust J Zool 32:15–22CrossRefGoogle Scholar
  8. Hartley JC, Robinson DJ (1976) Acoustic behaviour of both sexes of the speckled bush cricket Leptophyes punctatissima. Physiol Entomol 1:21–25CrossRefGoogle Scholar
  9. Harz K (1969) Die Orthopteren Europas I. Dr. W Junk BV Publ; The HagueCrossRefGoogle Scholar
  10. Heller KG, Helversen D v (1986) Acoustic communication in phaneropterid bushcrickets: species-specific delay of female stridulatory response and matching male sensory time window. Behav Ecol Sociobiol 18:189–198CrossRefGoogle Scholar
  11. Miller PL (1987) An examination of the prolonged copulations of Ischnura elegans (Van der Linden) (Zygoptera: Coenagrionidae). Odonatologica 16:37–56Google Scholar
  12. Ono T, Siva-Jothy MT, Kato A (1989) Removal and subsequent ingestion of rival's semen during copulation in a tree cricket. Physiol Entomol 14:195–202CrossRefGoogle Scholar
  13. Parker GA (1970) Sperm competition and its evolutionary consequences in the insects. Biol Rev 45:525–567CrossRefGoogle Scholar
  14. Parker GA (1984) Sperm competition and the evolution of animal mating strategies. In: Smith RL (ed) Sperm competition and the evolution of animal mating systems. Academic Press, New York, pp 1–60Google Scholar
  15. Robinson DH (1980) Acoustic communication between the sexes of the bushcricket Leptophyes punctatissima. Physiol Entomol 5:183–189CrossRefGoogle Scholar
  16. Sakaluk SK (1986) Is courtship feeding male insects parental investment? Ethology 73:161–166CrossRefGoogle Scholar
  17. Simmons LW (1990) Nuptial feeding in tettigoniids: male costs and the rates of fecundity increase. Behav Ecol Sociobiol 27:43–47CrossRefGoogle Scholar
  18. Siva-Jothy MT (1987) Variation in copulation duration and the resultant degree of sperm removal in Orthetrum cancellatum (L.) (Libellulidae: Odonata). Behav Ecol Sociobiol 20:147–151CrossRefGoogle Scholar
  19. Waage JK (1979) Dual function of the damselfly penis: sperm removal and transfer. Science 203:916–918CrossRefPubMedGoogle Scholar
  20. Waage JK (1984) Sperm competition and the evolution of odonate mating systems. In: Smith RL (ed) Sperm competition and the evolution of animal mating systems. Academic Press, New York, pp 251–290CrossRefGoogle Scholar
  21. Waage JK (1986) Evidence for widespread sperm displacement ability among Zygoptera (Odonata) and the means for predicting its presence. Biol J Linn Soc 28:285–300CrossRefGoogle Scholar
  22. Walker WF (1980) Sperm utilization strategies in nonsocial insects. Am Nat 115:780–799CrossRefGoogle Scholar
  23. Wedell LN, Arak A (1989) The Wartbiter spermatophore and its effect on female reproductive output (Orthoptera: Tettingoniidae, Decticus verrucivorus). Behav Ecol Sociobiol 24:117–125CrossRefGoogle Scholar
  24. Wickler W (1985) Stepfathers in insects and their pseudoparental investment. Z Tierphsychol 69:72–78CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • Dagmar von Helversen
    • 1
  • Otto von Helversen
    • 1
  1. 1.Zoologisches Institut der UniversitätErlangenFederal Republic of Germany

Personalised recommendations