Population Studies

Population Growth

• Current population

Population Explotion

• A very rapid growth in population.

                                                          

Population Cycle

                                                       

Key terms to help understanding

• Natural increase – means the population is growing because there are more people being born than are dying.

Fantasy Island has a population of 5.

What is the natural increase?

When the birth rate line is above the death rate line the population

is growing.

Stage 1

• Birth rate and death rate are high - low natural increase - low total population

Stage 2

• Birth rate is high - death rate is falling - high natural increase (population growth)

Stage 3

• Falling birth rate - low death rate - high natural increase (population growth)

Stage 4

• Birth rate and death rate is low - low natural increase - high total population

What causes change in populations?

- food supply - war - technological development - health - education - place of women in society

Population distribution (how we spread out over the world) varies

over time.

• What this really means is that people may have gathered in certain areas for certain reasons in the past and now they have moved because the circumstances have changed.

Why is population distribution uneven?

• We don’t like– Too wet– Too dry– Too high– Too humid– Too steep

So we tend to all gather in the nice places.

According to the Syllabus

Social

Historical

Resources

Terrain

We will mention these in case studies.

Population densityHow many people per square

kilometer?

                                                          

Population Case Study - Brazil

Brazil

Brazil population

• Web• 193 nations • Brazil comes 5th in population• projected population for the year 2015 at

201,970,000• Made up of white (mainly portugese),

native or indigenous Amerindians, black Africans and Japanese.

Amerindians

•

1500s Portuguese colonies

• Set up trading towns on coast and brought slaves from Africa for their plantations

German immigration to Brazilfrom 1824 to repopulate uninhabited

areas.

Immigration AgreementJapan and Brazil

•

Population distribution

within Brazil.

Why a higher density on the coast?

• Portuguese trading towns started here.

• Employment and enjoyment in these cities as they grew – Rio de Janeiro – Sao Paolo

Why a higher density on the coast?

• Portuguese trading towns started here.

• Employment and enjoyment in these cities as they grew – Rio de Janeiro – Sao Paolo

• Climate more suitable

• Dense rainforests called “ Green Hell”

Apply syllabus reasons to case study.

• Portuguese trading towns started here. -Social / Historical

• Employment and enjoyment in these cities as they grew – Rio de Janeiro – Sao Paolo– Social

• Climate more suitable• Dense rainforests called “ Green Hell”

- Terrain

Homework

• Read 218 and 219 and 220– Answer questions 1,4,5,6