Journal of Ethology

, Volume 31, Issue 3, pp 255–259 | Cite as

Seismic communication in demon African mole rat Tachyoryctes daemon from Tanzania

  • Ema Hrouzková
  • Veronika Dvořáková
  • Petr Jedlička
  • Radim Šumbera
Article

Abstract

We describe the production of substrate-borne vibrations in a subterranean mole rat of the genus Tachyoryctes for the first time. These signals with a supposed communication function were recorded using two approaches. Firstly, we recorded the production of spontaneous substrate-borne vibrations of individual test animals in artificial tunnels simulating a mole rat burrow system. Secondly, we recorded substrate-borne vibrations in individuals with interconnected home systems divided by a barrier. We found that Tachyoryctes produces these seismic signals by striking its head against the ceiling of the tunnel. Two types of seismic signals differing in physical parameters were identified. A slow signal (inter-pulse distance 0.12 s, inter-bout distance 3.89 s, number of pulses within each bout 9.53) was produced in both experiments, whereas a fast signal (inter-pulse distance 0.05 s, inter-bout distance 18.44 s, number of pulses within each bout 22.54) was produced mainly in close proximity to another individual. Our results indicate that fast signals are probably individually specific, because the success rate of classification according to discriminant function analysis was 70.4 % for the three tested individuals.

Keywords

Seismic communication Tachyoryctes Substrate-borne vibration Subterranean mammal 

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Copyright information

© Japan Ethological Society and Springer Japan 2013

Authors and Affiliations

  • Ema Hrouzková
    • 1
  • Veronika Dvořáková
    • 1
  • Petr Jedlička
    • 2
  • Radim Šumbera
    • 1
  1. 1.Faculty of ScienceUniversity of South BohemiaČeské BudějoviceCzech Republic
  2. 2.Institute of Geophysics ASCRPrague 4Czech Republic

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