Table 1.
Summary of environmental data and thermal sensitivity of limpets from Rothera (Nacella concinna), Dunedin New Zealand (Cellana ornata), Melbourne Australia (C. tramoserica) and Singapore (C. radiata).
Figure 1.
Thermal reaction norm of duration tenacity in Nacellid limpets.
Fitted curves are shown. A) Antarctic (N. concinna), B) New Zealand (C. ornata), C) Melbourne (C. tramoserica) and D) Singapore (C. radiata). (Mean ±95%CI). Linear regressions are shown with break points calculated using the R-package strucchange (Zeileis et al., 2002).
Table 2.
Geographic range and thermal limits for limpets from Rothera (Nacella concinna), Dunedin New Zealand (Cellana ornata), Melbourne Australia (C. tramoserica) and Singapore (C. radiata).
Table 3.
The co-efficients of linear regressions fitted between breakpoints in the relationship between duration tenacity and temperature for limpets from Antarctica (N. concinna), Melbourne (C. tramoserica), New Zealand (C. ornata) and Singapore (C. radiata).
Figure 2.
Temperature limits for survival (functional mortality) of A) Antarctic (intertidal N. concinna; upper limit from Morley et al, 2009) B) New Zealand (C. ornata), C) Melbourne (C. tramoserica) and D) Singapore (C. radiata) Nacellid limpets (Mean ±95%CI).
Table 4.
The temperature limits for tenacity and upper lethal limits correlated with environmental temperatures of the four subtidal limpet species.