.... However, oxygen supply capacity has evolved to match demand across temperatures and body sizes and so does not constrain thermal tolerance or cause the well-known reduction in mass-specific metabolic rate with increasing body mass. The critical oxygen pressure for resting metabolic rate, typically viewed...

... and these animals, therefore, do not experience a gradual decrease in aerobic performance at high temperatures. We therefore propose a modification to the OCLTT model for the relationship between oxygen supply capacity, animal fitness and thermal tolerance in tropical species ( Fig. 5B ). Here aerobic...