Geographic range and thermal limits for limpets from Rothera (Nacella concinna), Dunedin New Zealand (Cellana ornata), Melbourne Australia (C. tramoserica) and Singapore (C. radiata).

The temperature of 50% upper (CTmax) and lower (CTmin) bounds and maximum tenacity (Topt) are calculated from the break point and regression fits (Table 2). Topt for C. tramoserica was an average value for the temperature range over which tenacity did not change. Geographic ranges taken from http://www.gbif.org/.