lifecycle-kit / bio-laws / populationDensity

Function: populationDensity()

populationDensity(massKg): number

Population density from body mass.

Source: Damuth, J. (1981). "Population density and body size in mammals." Nature, 290(5808), 699-700.

log10(D) = 4.23 - 0.75 × log10(M)

Large animals are rare because each one needs more resources. This is what makes a big creature's world feel empty and a small one's crowded, without anyone tuning a spawn rate.

Parameters

massKg

number

Returns

number