According to a famous article by Max Kleiber*, the scaling of the metabolic rate or energy consumption for mammals Pₘₑₜₐᵦ (measured in kcal/day) with the body mass Mb (measured in kilograms) is Pₘₑₜₐᵦ = 70 Mb^ (0.75).

What is the scaling exponent (the quantity x in a scaling law A = cMbx) for the specific metabolic rate as a function of the animal's body mass?

Question

Biology

Nicolas Cowan

3 July, 05:04

According to a famous article by Max Kleiber*, the scaling of the metabolic rate or energy consumption for mammals Pₘₑₜₐᵦ (measured in kcal/day) with the body mass Mb (measured in kilograms) is Pₘₑₜₐᵦ = 70 Mb^ (0.75).

What is the scaling exponent (the quantity x in a scaling law A = cMbx) for the specific metabolic rate as a function of the animal's body mass?

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Answers (1)

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Simon Ballard · Answer 1

The scaling exponent will be 0.75

Explanation:

According to a famous article by Max Kleiber*, the scaling of the metabolic rate or energy consumption for mammals Pmetab (measured in kcal/day) with the body mass Mb (measured in kilograms) is P metab = 70 Mb^0.75.

What is the scaling exponent (the quantity x in a scaling law A = cMbx) for the specific metabolic rate as a function of the animal's body mass?

he scaling of the metabolic rate or energy consumption for mammals P=kcal/day

Mb=body mass in kilograms

Comparing

P metab = 70 Mb^0.75.

with A = cMb^x

the scaling exponent will be 0.75

metabolic rate is the energy (in kilojoule) consumed at rest. it accounts for the highest amount of energy a body consumes daily