Fig. 2
From: Short- and long-distance avian migrants differ in exercise endurance but not aerobic capacity
Aerobic performance of short-distance and long-distance migrants characterised by maximum metabolic rate (mass-specific MMR, V̇O2 ml min− 1, A), resting metabolic rate (mass-specific RMRmin, B), time until exhaustion (min, C). European robins (EriRub) and black redstarts (PhoOch) are short-distance migrants as well as common redstart (PhoPho) and whinchats (SaxRub) are long-distance migrants. Black and red bars and dots indicate males and females, respectively. All data are means ± SD