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Birth Rates Melissa Schreiber. Human Population Growth The world’s human population has risen steadily Exponential growth ▫Growth curve slope steeply.

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Presentation on theme: "Birth Rates Melissa Schreiber. Human Population Growth The world’s human population has risen steadily Exponential growth ▫Growth curve slope steeply."— Presentation transcript:

1 Birth Rates Melissa Schreiber

2 Human Population Growth The world’s human population has risen steadily Exponential growth ▫Growth curve slope steeply upward Growth rate ▫Determined by considering the difference between the number of persons born per year (birthrate) and the number of persons who die per year (death rate) 2

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4 4 Human Population Growth Biotic potential ▫Maximum growth rate under ideal conditions Environmental resistance ▫Includes limiting factors such as food and space Carrying capacity ▫Maximum population that the environment can support for an indefinite period ▫Some believe the Earth is capable of supporting 50 to 100 billion people ▫Others think we have too many people to support

5 5 Age-Structure Diagrams MDCs North America and Europe LDCs Asia, Africa, Latin America

6 Fig c Improved Women’s Rights and Increase Usage of Contraceptives Could Change the Scenario of LDCs Increase in Population


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