Evidence for Air Movement Signals in the Agonistic Behaviour of a Nocturnal Arachnid (Order Amblypygi) Whip Spider
2011

Whip Spider Communication Through Air Movement Signals

Sample size: 16 publication 10 minutes Evidence: moderate

Author Information

Author(s): Roger D. Santer, Eileen A. Hebets

Primary Institution: School of Biological Sciences, University of Nebraska Lincoln

Hypothesis

Do whip spiders perceive air particle displacements as signals during agonistic contests?

Conclusion

Whip spiders use air movement signals during contests, and their absence leads to longer contests and more physical fighting.

Supporting Evidence

  • Whip spiders with ablated trichobothria had longer contest durations.
  • Contests without air movement signals were more likely to escalate to physical fighting.
  • Both male and female whip spiders showed significant differences in contest behavior based on trichobothria status.

Takeaway

Whip spiders can feel air movements made by other spiders, which helps them decide whether to fight or back down.

Methodology

The study compared contest behaviors of whip spiders with intact trichobothria to those with ablated trichobothria during agonistic interactions.

Potential Biases

Potential biases due to the small number of contests and the specific conditions under which they were conducted.

Limitations

Small sample size may limit the power of statistical tests.

Participant Demographics

16 adult whip spiders (8 male and 8 female) collected from Big Pine Key, Florida.

Statistical Information

P-Value

0.045 for males, 0.013 for females

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0022473

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