Table 1 GEE model testing species (mouse or zebra finch) and treatment (Glu-mal, amytal or succinate) effects on mitochondrial respiration rate (VO ₂ )

(Intercept)

297.1

1

< 0.001

Species

261.6

1

< 0.001

Treatment

548.8

2

< 0.001

Species x Treatment

503.9

2

< 0.001