Correlated responses in death-feigning behavior, activity, and brain biogenic amine expression in red flour beetle Tribolium castaneum strains selected for walking distance

Kentarou Matsumura, Ken Sasaki, Takahisa Miyatake

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Dispersal ability may influence antipredator and mating strategies. A previous study showed a trade-off between predation avoidance and mating success in strains of the red flour beetle Tribolium castaneum selected for walking distance. Specifically, beetles derived from strains selected for longer walking distance suffered higher predation pressure and had higher male mating success than their counterparts derived from strains selected for shorter walking distance. In the study reported here, we compared the locomotor activity, biogenic amine expression in the brain, and death-feigning behavior of the red flour beetle strains selected for walking distance. The results indicated that individuals genetically predisposed to longer walking distance had higher locomotor activity and lower intensity of death-feigning behavior than those genetically predisposed to shorter walking distance. However, no significant differences were found in the expression of biogenic amines in the brain among strains selected for walking distance, although the level of dopamine in the brain differed from that of the strains divergently selected for duration of death-feigning behavior. The relationships between walking speed, activity, death-feigning behavior, and brain biogenic amines in T. castaneum are discussed.

Original languageEnglish
Pages (from-to)97-105
Number of pages9
JournalJournal of Ethology
Volume34
Issue number2
DOIs
Publication statusPublished - May 1 2016

Keywords

  • Artificial selection
  • Biogenic amine
  • Death-feigning behavior
  • Dispersal ability
  • Genetic correlation
  • Locomotor activity

ASJC Scopus subject areas

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

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