Exponential Population Growth Equation
Derivation
•The
equation for population change over a unit t (time)
•DN / Dt = No + B + I - D – E
•Simplify
the equation
–Assume
a closed population
–Eliminate
migration (I, E)
•DN / Dt = No + B - D
–Growth
rate r = (B/N) – (D/N)
•DN / Dt = (r)(No)
–This
is the basic exponential growth equation
