THE DEMOGRAPHIC TRANSITION MODEL Cole Cantrell and Grant

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THE DEMOGRAPHIC TRANSITION MODEL Cole Cantrell and Grant Mc. Nulty 4 th Block

THE DEMOGRAPHIC TRANSITION MODEL Cole Cantrell and Grant Mc. Nulty 4 th Block

WHAT DOES THIS MODEL DO? � This model can be used to show developed

WHAT DOES THIS MODEL DO? � This model can be used to show developed a country is � It contains 4 stages, with a possible 5 th stage � Calculated with the Crude Birth Rate, CBR, and the Crude Death Rate, CDR � Population pyramids have a correlation to each stage

STAGE 1 � In Stage 1, people will be hunters and gathers � Currently,

STAGE 1 � In Stage 1, people will be hunters and gathers � Currently, there are no countries are in Stage 1. � The First Agricultural Revolution has allowed all countries to pass Stage 1. � The CBR and CDR vary widely causing low population growth

STAGE 2 � In Stage 2, the world population has spiked and grows rapidly

STAGE 2 � In Stage 2, the world population has spiked and grows rapidly � The CBR remains high, while the CDR has dropped significantly, causing high growth � The Industrial Revolution and Medical Revolution � Currently, many African, Latin American, and some Asian countries are in Stage 2

STAGE 2 CONT. As shown by the population pyramid, Stage 2’s pyramid, look like

STAGE 2 CONT. As shown by the population pyramid, Stage 2’s pyramid, look like an average pyramid.

STAGE 3 � In Stage 3, the population grows, but more slowly than in

STAGE 3 � In Stage 3, the population grows, but more slowly than in Stage 2 � The CDR continues to lower, but the CBR also lowers but not as fast as the CDR. � Many European and North American countries moved to Stage 3 in the 1950 s, and Latin American, and Asian countries have moved up to Stage 3 recently. � Economic changes has allowed more jobs and women to join the work force, resulting in the lesser chance of having kids

STAGE 3 CONT. The population pyramid in a Stage 3 country has a more

STAGE 3 CONT. The population pyramid in a Stage 3 country has a more box shape to it.

STAGE 4 � In Stage 4, little population occurs, or the country reaches zero

STAGE 4 � In Stage 4, little population occurs, or the country reaches zero population growth � The gap between the CBR and CDR continues to decrease, or the two overlap � Very few countries are in Stage 4, typically European countries � The total fertility rate, the average of how many children a women has, is below the Natural Increase Rate, 2. 1 children

STAGE 4 CONT. Population pyramids in Stage 4 looks like an upside down pyramid.

STAGE 4 CONT. Population pyramids in Stage 4 looks like an upside down pyramid.

STAGE 5? � Some geographers believe that the Demographic Transition Model has a 5

STAGE 5? � Some geographers believe that the Demographic Transition Model has a 5 th stage � In Stage 5, the CBR will be below the CDR, and the population would begin to decline � It is debated on whether few countries, such as Germany, are in Stage 5

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