Female hunger can explain variation in cannibalistic behavior despite male sacrifice in redback spiders

  title={Female hunger can explain variation in cannibalistic behavior despite male sacrifice in redback spiders},
  author={Maydianne C. B. Andrade},
  journal={Behavioral Ecology},
  • M. Andrade
  • Published 1998
  • Psychology, Biology
  • Behavioral Ecology
Male Australian redback spiders (Latrodtctus hassetti ThorelL Tberidiidae) place their abdomens directly over their mate's mouthparts during copulation, increasing the likelihood of sexual cannibalism. Male sacrifice may be adaptive because cannibalized males increase their paternity relative to those that are not eaten. Despite male sacrifice behavior, however, up to 50% of laboratory matings may end without sexual ranni^alinn Here, I report a similar pattern in the field, where males were not… 
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