Experimental evidence for a magnetic sense in Neotropical migrating butterflies (Lepidoptera: Pieridae)

  title={Experimental evidence for a magnetic sense in Neotropical migrating butterflies (Lepidoptera: Pieridae)},
  author={R. Srygley and R. Dudley and E. G. Oliveira and A. J. Riveros},
  journal={Animal Behaviour},
  • R. Srygley, R. Dudley, +1 author A. J. Riveros
  • Published 2006
  • Geography
  • Animal Behaviour
  • We tested whether migrating Aphrissa statira butterflies orient with a magnetic compass. We captured migrants flying over Lake Gatun, Panama, and exposed experimental butterflies to a strong magnetic field. These and unmanipulated control butterflies were released back over the lake. Experimental butterflies had a more dispersed pattern of orientation than control butterflies. The average direction adopted was northeast, 160° anticlockwise to the natural migratory direction. Unmanipulated… CONTINUE READING
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