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Fig. 2. Typical recording, showing the response of a termite to hyperoxia (switch
to 100% O2; see indicator on graph) with a subsequent return to
normoxia (switch to 21% O2; see indicator on graph) at 15°C.
The oxygen guarding response, resulting in a transient decline of
CO2 emission rates, is clearly visible, as is a compensatory
transient emission of CO2 after re-establishment of normoxia. The
body mass of this termite was 0.0122 g. Baselines are shown at the start and
end of the recording. See text for details.