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  1. Transgenerational effects of nutrition are different for sons and daughters
  2. Male-male competition leads to less abundant but more attractive sperm
  3. The ultrastructure of the ejaculatory duct in the springtail Orchesella villosa (Geoffroy) (Hexapoda, Collembola) and the formation of the spermatophore
  4. Effects of exposure to short-term heat stress on male reproductive fitness in a soil arthropod
  5. Female preference and fitness benefits of mate choice in a species with dissociated sperm transfer
  6. Sperm ultrastructure and spermiogenesis of Coniopterygidae (Neuroptera, Insecta)
  7. The ultrastructure of the spermathecae in the Collembola Symphypleona (Hexapoda)
  8. Fine structure of the spermatheca and of the accessory glands inOrchesella villosa(Collembola, Hexapoda)