Population change. What does this map tell us?

Population Dynamics 1.1 How and why is population changing in different parts of the world? a) The world’s population was increasing exponentially, but future growth rates are uncertain Lesson 3: How does development affect population? What were the differences between the different countries? High Income countries have low population growth, population balance or even population decline. Low and middle income countries have higher levels of population increase. Population change is related to a countries development

Learning Objectives: To describe how birth rate, death rate and total population change as a country develops To explain why these changes take place To describe and explain the stages of the Demographic Transition Model Population Dynamics Lesson 3: How does development affect population?

Demographic Transition Model (DTM) This model shows how population changes as countries become more developed. The world’s countries are at different stages of this model.

Mix and match exercise What you need to be able to do: Describe the birth rate, death rate and total population at each stage of the model. Explain the factors that affect the BR and DR at each stage. Use the task sheet to help you with this exercise Lesson 3: How does development affect population?

Reasons for high birth rate: Little or no birth control High infant mortality Children seen as an asset and status symbol Reasons for high death rate: High infant mortality High incidence of disease Poor nutrition and famine Poor housing and hygiene Little or no healthcare Birth Rate and Death rate is high and fluctuating The population has periods of increase and decrease Lesson 3: How does development affect population?

Reasons for rapid fall in death rate: Lower infant mortality Improved healthcare and hygiene Better nutrition Safer water and better waste disposal High Birth Rate Rapidly falling Death Rate Rapid population rise Lesson 3: How does development affect population?

Reasons for rapid falling birth rates: Widespread birth control Preference for smaller families Expense of bringing up children Low infant mortality rates Falling death rate Falling birth rate Population growth slows Lesson 3: How does development affect population?

Reasons for rapid falling birth rates: Effective birth control Working women having children later Birth rate and Death rate are low and Fluctuating The population has periods of increase and decrease Lesson 3: How does development affect population?

Reasons: Life expectancy is high Less people in the reproductive age range (15-50) Death rate rises slightly above birth rate Natural decrease Population decline Lesson 3: How does development affect population?

Learning Objectives: To describe how birth rate, death rate and total population change as a country develops To explain why these changes take place To describe and explain the stages of the Demographic Transition Model What are the problems with using this model? Lesson 3: How does development affect population?