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Fig. 4. Relationship between body mass and metabolism during the workload phase.
Triangles represent resting metabolic rate (RMR), and circles represent daily
energy expenditure (DEE). Body mass significantly predicted both DEE (solid
line: F1,16=26.3, P<0.0001,
R2=0.62; y=2.25x–12.41) and RMR
(dotted line: F1,16=8.3, P=0.01,
R2=0.34; y=0.80x+10.21) of mice faced
with low foraging costs (black symbols), high foraging costs (open symbols),
or food restriction without foraging (grey symbols). Sample sizes per group
were L=7, H=6 and R=5.