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Fig. 2. Values for the different parameters of precision of thermoregulation with
exposures to different levels of oxygen. Upper and lower escape ambient
temperatures (UETa and LETa, respectively), high and low
limits of the Tb range (HTbL and
LTbL) and preferred Tb are plotted as
the mean of the 7.5 h median values of 12 lizards (P. vitticeps)
±s.e.m. (for visual clarity) instead of s.d. Values for s.d. are
reported in Table 1. Animals
were tested for 7.5 h in an electronic shuttle box at each of the experimental
conditions. *Significant effect compared with normoxic values with
the Holm–Sidak post-hoc test (P<0.05).