Figure 7.
Comparison of core temperatures. (a) Behavioural pressure is set by the temperature slightly below the surface of the cluster, and sensitivity to total bee volume is mitigated. (b) Behavioural pressure is set by ambient temperature, and sensitivity of core temperature to total bee volume is considerably higher. Ta is also plotted in each to guide the eye. Note that (b) is very similar to figure 3b, as it results from the same equations except for convection. (Online version in colour.)