Pyrrolizidine alkaloids inDanaus plexippus L. andDanaus chrysippus L.

  title={Pyrrolizidine alkaloids inDanaus plexippus L. andDanaus chrysippus L.},
  author={John A. Edgar and Peter A. Cockrum and J. L. Frahn},
Danaus plexippus L. andDanaus chrysippus L. have been found to store pyrrolizidine alkaloids obtained from adult food plants and it is suggested that the alkaloids contribute to the unpalatability of the butterflies to potential predators. 

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