Figure 3.

Mussel climatic niche space measured as surface area-specific food assimilation rate (J h⁻¹ V^2/3) for Mytilus edulis physiological parameters (electronic supplementary material, table S1). The assimilation rate is plotted in relation to air temperature and solar radiation for three different wind speeds and two different body sizes. A biophysical model (see electronic supplementary material) was used to calculate body temperature to infer assimilation rate. The grey cloud of points in the background represents hourly observed combinations of air temperature and solar radiation at the study site, Bodega CA, USA. (a,b) wind speed 0.1 m s⁻¹; (c,d) wind speed 1.0 m s⁻¹; (e,f) wind speed 9.0 m s⁻¹.