The predatory response of a stalking spider, Plexippus paykulli , to camouflage and prey type

@article{Bear1997ThePR,
  title={The predatory response of a stalking spider,
 Plexippus paykulli
 , to camouflage and prey type},
  author={Allon Bear and Oren Hasson},
  journal={Animal Behaviour},
  year={1997},
  volume={54},
  pages={993-998}
}
When approaching prey, a stalking predator should consider trade-offs between the probabilities of early detection (by the prey, before the strike), spontaneous departure (of prey, before the strike), prey escape (following the strike) and interference (by rivals or predators). In this study we tested the response of a jumping spider, Plexippus paykullito a background with two different camouflaging properties, and two different prey types (maggots versus adult house flies). Spiders jumped… 
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Distance of approach to prey is adjusted to the prey ’ s ability to escape in Yllenus arenarius Menge ( Araneae , Salticidae )
The aim of the study was to investigate, whether Yllenus arenarius, a dune dwelling salticid, can adjust its jumping distance when hunting prey of high or low escapability risk. It was found that the
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