Acta Biologica Hungarica

, Volume 63, Supplement 2, pp 80–82 | Cite as

Behavioral Evidence for Internal Factors Affecting Duration of Conglobation in Pill Bugs (Armadillidium vulgare, Isopoda, Crustacea)

Short Communication
  • Hiroe Matsuno
  • T. MoriyamaEmail author


Pill bugs individually walked an experimental pathway, then were induced to conglobate with a puff of air. After recovering, they were stimulated again. Sixty of 80 pill bugs conglobated both times, first moving either antennae (A) or legs (L) during recovery. Both AA and LL groups showed a significant positive correlation between first (t1) and second (t2) conglobation times. In the AL group, pathway locomotion time (t0) was significantly positively correlated to both t1 and t2. We conclude that pill bugs determine conglobation time based partly on their previous states.


Conglobation internal factor isopod pill bug self-reference 


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Copyright information

© Akadémiai Kiadó, Budapest 2012

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Department of Complex Systems ScienceFuture University-HakodateJapan
  2. 2.Young Researchers Empowerment CenterShinshu UniversityJapan

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