•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
–Create a growth rate (r) = B-D
•DN / Dt = (r)(No)
–This is the basic exponential growth
equation
