Evidence of population-level lateralized behaviour in giant water bugs, Belostoma flumineum Say (Heteroptera: Belostomatidae): T-maze turning is left biased

Scott L. Kight, Laura Steelman, Gena Coffey, Julie Lucente, Marianne Castillo

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

Lateralized behaviour occurs in diverse animals, but relatively few studies examine the phenomenon in invertebrates. Here we report a population-level left turn bias in the giant water bug Belostoma flumineum Say (Heteroptera: Belostomatidae) in an underwater T-maze. Individuals made significantly more left turns than right turns, including when they were naïve and first introduced to the maze. Water bugs also showed significantly longer runs of consecutive left turns than right turns (i.e. LLLLL). The length of these runs, however, did not increase with experience in the maze, suggesting that the effect is not the result of learning. There were also no differences in turning bias between male and female water bugs. The proximate mechanism(s) underlying the left turn bias is unknown, but directional cues in the environment were eliminated by rotating the maze 180° between experiments, suggesting the mechanism(s) is endogenous. To our knowledge this is the first study of lateralized behaviour in the Heteroptera or in a swimming invertebrate animal.

Original languageEnglish
Pages (from-to)66-69
Number of pages4
JournalBehavioural Processes
Volume79
Issue number1
DOIs
StatePublished - 1 Sep 2008

Keywords

  • Belostoma flumineum
  • Handedness
  • Lateralization
  • Maze
  • Water bug

Fingerprint Dive into the research topics of 'Evidence of population-level lateralized behaviour in giant water bugs, Belostoma flumineum Say (Heteroptera: Belostomatidae): T-maze turning is left biased'. Together they form a unique fingerprint.

  • Cite this