Biotic Potential Organisms reproducing at their maximum rate All organisms survive to age of reproduction Succeeding generations reproduce at their maximum.

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Presentation transcript:

Biotic Potential Organisms reproducing at their maximum rate All organisms survive to age of reproduction Succeeding generations reproduce at their maximum rate

Birth Rate Number of births per individual per year Example : If there are 52 births per 1,000 individuals, the per capita birth rate would be: 52/1000 or.052 births per person

World Birth Rates

Death Rate The number of deaths per individual per year Example: If there are 14 deaths per 1,000 individuals per year, the per capita death rate would be 14/ deaths /individual/year

World Death Rates

Growth Rate Births per capita – Deaths per capita.052 (births per capita) (deaths per capita) = (growth per capita)

To Calculate New Individuals per Year Multiply the per capita growth rate by the number of individuals in the population If the population is 50, (per capita growth rate) X 50,000 = 1,900 additional individuals

Survivorship Curves

Typical Population Growth curve

Carrying Capacity

Age Distribution - Kenya

Age Distribution - Pakistan

Age Distribution - USA

Age Distribution - Canada

World Population By Continent

Carrying Capacity

World Population