Pleiotropic antipredator strategies, fleeing and feigning death, correlated with dopamine levels in Tribolium castaneum

Takahisa Miyatake, Ken Tabuchi, Ken Sasaki, Kensuke Okada, Kohji Katayama, Seiichi Moriya

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

A prey animal has the alternative of fleeing or feigning death to survive when it encounters predators. We found that fleeing by an artificial threat, locomotion and feigning death are pleiotropically correlated with a genetic factor related to a biogenic amine in the red flour beetle, Tribolium castaneum. Walking distance of adults was significantly lower in strains artificially selected for longer (L strains) than shorter duration (S strains) of death-feigning. Crosses showed that S-strain adults were dominant in the frequency and duration of death-feigning and locomotor activity compared to those of L strains, suggesting that death-feigning and activity have the same genetic basis. S-strain adults fled, but L-strain adults feigned death, when they encounter artificial threat. Not only adults that were directly selected for the duration of death-feigning, but also the larvae of L strains frequently showed tonic immobility, when they were dropped onto the ground: the larvae of S strains showed this behaviour less often. This suggests that chemical modulators of behaviour present in these insects before and after metamorphosis control both general locomotor activity and death-feigning. Brain levels of the candidate neuromodulator dopamine were, in fact, found to be significantly higher in S strains compared to L strains in the two selection replications. Thus, we suggest that two alternative behaviours related to antipredator strategies, fleeing or feigning death, are associated with the pleiotropic effects of a neuroactive substance in T. castaneum.

Original languageEnglish
Pages (from-to)113-121
Number of pages9
JournalAnimal Behaviour
Volume75
Issue number1
DOIs
Publication statusPublished - Jan 2008

Fingerprint

Tribolium castaneum
dopamine
death
locomotion
larva
walking
metamorphosis
duration
brain
beetle
predator
insect
larvae
biogenic amines
animal
neurotransmitters
predators
insects

Keywords

  • animal hypnosis
  • artificial selection
  • biogenic amine
  • death-feigning
  • defence
  • genetic correlation
  • locomotion
  • thanatosis
  • tonic immobility
  • Tribolium castaneum

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Pleiotropic antipredator strategies, fleeing and feigning death, correlated with dopamine levels in Tribolium castaneum. / Miyatake, Takahisa; Tabuchi, Ken; Sasaki, Ken; Okada, Kensuke; Katayama, Kohji; Moriya, Seiichi.

In: Animal Behaviour, Vol. 75, No. 1, 01.2008, p. 113-121.

Research output: Contribution to journalArticle

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