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Author (up) Nakayama, S.; Miyatake, T. url  doi
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  Title Positive genetic correlations between life-history traits and death-feigning behavior in adzuki bean beetle (Callosobruchus chinensis) Type Journal Article
  Year 2009 Publication Evolutionary Ecology Abbreviated Journal Evol Ecol  
  Volume 23 Issue 5 Pages 711-722  
  Keywords Death feigning – Anti-predator strategy – Adzuki bean beetle – Genetic correlation – Life-history traits  
  Abstract Usually, several traits in organisms are genetically linked with each other; thus, correlated responses to selection are generally observed. Anti-predator behaviors may be genetically correlated with other traits such as life-history. We compared the life-history traits of individuals derived from two regimes artificially selected for the duration of death feigning in the adzuki bean beetle, Callosobruchus chinensis. The two-way selected regimes include the L-lines with stronger intensity (longer duration and higher frequency) and the S-lines with weaker intensity (shorter duration and lower frequency) of death feigning. L-lines exhibited greater longevity, higher rates of emergence, laid bigger eggs and greater reproductive effort, and also had a tendency of faster development. Fecundity was not significantly different between L- and S-lines. These results provide the novel possibility that death feigning is a potentially advantageous anti-predator behavior that, through a positive genetic correlation with some life-history traits, can bring a higher fitness to an individual adopting this behavior. This novel aspect might explain why death-feigning behavior is prevalent in various taxonomic animal groups.  
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  Language Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0269-7653 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Lone Star @ elizabeth.r.morgan @ Serial 59  
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