Pollution
Pollution
Pollution
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POPULATION DYNAMICS<br />
• Population dynamics - study of changes in the numbers<br />
and composition of individuals in the population and factors<br />
that affect this.<br />
• Important in predicting demands on resources and impacts<br />
on environment and developing pollution management<br />
plans.<br />
• For exponential growth:<br />
where P t is population at time t, P o is the population at time<br />
0, r is the growth rate and t is time<br />
• The growth rate (r) can be determined from the birth rate<br />
(b), death rate (d), immigration rate (i) and emigration rate<br />
(e):
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