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Fig. 7. Effect of intraindividual variability on the bias in estimating locomotor
performance parameters in the lizard Sceloporus occidentalis.
Original data were adjusted to achieve different degrees of intraindividual
variability, then used in computer sampling experiments like those illustrated
in Figs 5 and
6. (A) Mean proportion of
maximum sprint speed at 35°C plotted against number of trials per
individual (each point is the mean of 1000 independent samples). Data were
adjusted to achieve average CV of 10% (filled squares), 20% (open circles) and
30% (filled circles). (B) Correlation coefficient between average individual
speeds at 20°C and 35°C plotted against number of trials per
individual (each point is the mean from 1000 independent samples). Data were
adjusted to achieve repeatability (intraclass correlation coefficients) for
both traits of 0.75 (filled squares), 0.50 (open circles) and 0.25 (filled
circles).
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