1. Mathematics of Population Growth
Using Growth Equations
Calculating the population size under ideal growth conditions and under the influence of limiting factors

2. I. Variables N = population size B = # of births D = # of deaths
b = per capita “birth rate”
m = per capita “death rate”
r = per capita rate of increase or decrease
G = population growth = how many individuals to be added or subtracted to N

3. II. Exponential Growth – no limiting factors G = rN

4. III. Logistic Growth – Limiting Factors G = rN (K-N/K)

5. Things to Remember