Prolonged copulations as an alternative to male nuptial gift investment in the bushcricket Letana inflata (Orthoptera: Tettigoniidae)

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• 作者：Gerlind U. C. Lehmann ; Klaus-Gerhard Heller ; René Mai
• 关键词：Prolonged copulation ; Mating tactics ; Nuptial gifts ; Nuptial feeding ; Spermatophore ; Sperm ; Insemination
• 刊名：Journal of Ethology
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：34
• 期：2
• 页码：191-194
• 全文大小：695 KB
• 参考文献：Gwynne DT (1997) The evolution of edible ‘sperm sacs’ and other forms of courtship feeding in crickets, katydids and their kin (Orthoptera: Ensifera). In: Choe J, Crespie BJ (eds) The evolution of mating systems in insects and arachnids. Cambridge University Press, Cambridge, pp 110–129CrossRef
  Heller K-G, Liu C (2015) Mating behavior of Letana inflata, a duetting phaneropterine bush-cricket species with unusual male genitalic organs (Orthoptera: Tettigonioidea: Phaneropteridae). J Insect Behav 28:513–524. doi:10.​1007/​s10905-015-9520-6 CrossRef
  Lehmann GUC (2012) Weighing costs and benefits of mating in bushcrickets (Insecta: Orthoptera: Tettigoniidae), with an emphasis on nuptial gifts, protandry and mate density. Front Zool 9:19. doi:10.​1186/​1742-9994-9-19 CrossRef PubMed PubMedCentral
  Lewis SM, Vahed K, Koene JM, Engqvist L, Bussiére LF, Perry JC, Gwynne D, Lehmann GUC (2014) Emerging issues in the evolution of animal nuptial gifts. Biol Lett 10:20140336. doi:10.​1098/​rsbl.​2014.​0336 CrossRef PubMed PubMedCentral
  Vahed K, Lehmann AW, Gilbert JDJ, Lehmann GUC (2011) Increased copulation duration before ejaculate transfer is associated with larger spermatophores, and male genital titillators, across bushcricket taxa. J Evol Biol 24:1960–1968. doi:10.​1111/​j.​1420-9101.​2011.​02325.​x CrossRef PubMed
  Vahed K, Gilbert JDJ, Weissman DB, Barrientos-Lozano L (2014) Functional equivalence of grasping cerci and nuptial food gifts in promoting ejaculate transfer in katydids. Evolution 68:2052–2065. doi:10.​1111/​evo.​12421 CrossRef PubMed
  Wedell N (1998) Sperm protection and mate assessment in the bushcricket Coptaspis sp. 2. Anim Behav 56:357–363CrossRef PubMed
  Wulff NC, Lehmann GUC (2016) Function of male genital titillators in mating and spermatophore transfer in the tettigoniid bushcricket Metrioptera roeselii. Biol J Linn Soc 117: 206–216. doi:10.​1111/​bij.​12661 CrossRef
  Wulff NC, Lehmann AW, Hipsley CA, Lehmann GUC (2015) Copulatory courtship by bushcricket genital titillators: functional morphology, µCT scanning for 3D reconstruction and female sense structures. Arthropod Struct Dev 44:388–397. doi:10.​1016/​j.​asd.​2015.​05.​001 CrossRef PubMed
  
• 作者单位：Gerlind U. C. Lehmann (1)
  Klaus-Gerhard Heller (2)
  René Mai (1)
  
  1. Department of Biology, Behavioural Physiology, Humboldt-University Berlin, Invalidenstraße 43, 10115, Berlin, Germany
  2. Grillenstieg18, 39120, Magdeburg, Germany
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Zoology
  Behavioural Sciences
  Animal Ecology
  Evolutionary Biology
  Neurosciences
  
• 出版者：Springer Japan
• ISSN：1439-5444

文摘

In most bushcricket species, the male transfers a nuptial gift to the female during mating, consisting of a gelatinous spermatophylax attached to the paired ampulla with the sperm. The spermatophylax acts as a sperm protection device; during its consumption, the sperm are transferred into the female’s spermatheca. Males of the bushcricket Letana inflata (Brunner von Wattenwyl, 1878) show strongly extended copulation duration. When the pair finally separates, only an ampulla is visible at the females’ genital opening, but no spermatophylax. To better understand copulation dynamics in the absence of a spermatophylax, we studied copula duration and sperm transfer pattern. Our results show that in Letana inflata the missing spermatophylax is replaced by extended copulation, securing the transfer of sperm into the spermatheca.