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Table 1.

Body mass, basal metabolic rate, maximum metabolic rate and factorial aerobic scope of field-caught and laboratory acclimated Chilean mouse-opossum Thylamys elegans

FieldAfter acclimation
TreatmentMb (g)BMR (ml O2 h-1)MMR (ml O2 h-1)FASMb (g)BMR (ml O2 h-1)MMR (ml O2 h-1)FAS
Cold 31.1±3.5 (9) 19.9±2.3 (9) 294.2±18.2 (8) 13.5±0.8 (8) 42.5±5.0 (9) 34.5±3.9 (9) 371.9±26.0 (8) 11.5±2.1 (8) 
Warm 31.1±1.9 (6) 20.4±2.1 (6) 263.5±25.8 (8) 13.5±1.0 (6) 38.2±3.8 (6) 26.9±3.4 (6) 333.3±30.4 (8) 11.8±2.0 (6) 
FieldAfter acclimation
TreatmentMb (g)BMR (ml O2 h-1)MMR (ml O2 h-1)FASMb (g)BMR (ml O2 h-1)MMR (ml O2 h-1)FAS
Cold 31.1±3.5 (9) 19.9±2.3 (9) 294.2±18.2 (8) 13.5±0.8 (8) 42.5±5.0 (9) 34.5±3.9 (9) 371.9±26.0 (8) 11.5±2.1 (8) 
Warm 31.1±1.9 (6) 20.4±2.1 (6) 263.5±25.8 (8) 13.5±1.0 (6) 38.2±3.8 (6) 26.9±3.4 (6) 333.3±30.4 (8) 11.8±2.0 (6) 

Values are means ± S.E.M. (N).

Sample sizes are shown in parentheses in each case.

Warm, acclimated to 30 °C; cold, acclimated to 10 °C.

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