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Adaptive complexity of interactions between feeding and escape in crayfish.

Authors
  • Bellman, K L
  • Krasne, F B
Type
Published Article
Journal
Science (New York, N.Y.)
Publication Date
Aug 19, 1983
Volume
221
Issue
4612
Pages
779–781
Identifiers
PMID: 17829535
Source
Medline
License
Unknown

Abstract

If crayfish (Procambarus clarkii) are presented with food or threat stimuli, or both, their feeding behavior and escape from threat by tail flips show flexible patterns of interaction. If they are engaged in eating large, relatively immovable pieces of food, escape is inhibited, whereas if small pieces of food are being eaten, the probability of escape is enhanced. If escape occurs during a feeding bout, large pieces of food are usually released, but small ones are not. These observations suggest that the neural circuitry responsible for coordination of behavior in invertebrates may not be as simple as usually assumed.

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