Fig. 3. Model sensitivity analysis comparing (A) central circulation, (B) muscle,
(C) brain and (D) fat PN2 levels against
surface tissue time constant (
tiss1/2). Results shown are
predicted compartment values at the time the bird reaches the surface after
the last dive in a dive bout (black circle) or after deep (>50 m, red
triangle) or shallow (
50 m, green square) dives.