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Fig. 5. Effects of preventing male abdominal and cephalothorax contact on the power
spectra of different seismic signals. (A) Buzz signal; (B) scrape signal; (C)
thump signal. Panels i-iii represent mean power spectra for one individual
during the control, experimental and recovery treatments, respectively.
Experimental treatment consisted of waxing a piece of flexible foil to the
cephalothorax and placing one end of the foil between the cephalothorax and
abdomen. Recovery treatment consisted of removing the foil from between the
cephalothorax and abdomen.