Unit 1: Changing Population Flashcards Preview

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Flashcards in Unit 1: Changing Population Deck (21)
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1

Population Distribution

The "spread" of people across the world (eg. where they live).

2

Voluntary Internal Migration

The movement of people from one place to another within a country involving a permanent change of address.

3

Core-Periphery

The concept of a developed core surrounded by an undeveloped periphery (eg. Brazil).

4

Megacity

A metropolitan area with a population of 10+ million people.

5

Population Change

The balance between Birth Rate (BR), Death Rate (DR) and migration.

6

Birth Rate

# of live births / 1000 people / year

7

Death Rate

# of deaths / 1000 people / year

8

Natural Increase

Calculated by: Crude DR - Crude BR and expressed as a % of population (not taking migration into account).

Natural Increase: When BR is greater than DR
Natural Decrease: When DR is greater than BR

9

Doubling Time

# of years needed for a population to double.

10

General Fertility Rate

# of live births / 1000 women of child bearing age (15-49) / year.

11

Total Fertility Rate

Average # of children born / female, if all females lived to end of childbearing years.

Without migration, population decreases naturally when TFR is less than 2.1 (replacement rate).

12

Life Expectancy

Average # of years a person can be expected to live from birth if demographic factors remain unchanged throughout their life.

13

Infant Mortality Rate

# of deaths of infants ( < 1 yrs old) / 1000 live births / year

14

Child Mortality Rate

# of deaths of children ( < 5 yrs old) / 1000 live births / year

15

Population Momentum

The tendency of a population to grow despite a fall in BR or fertility.

16

Population Projection

Predictions about future population based on trends in fertility, mortality & migration.

17

Migration

Any population movement involving a permanent change of residence of at least 1 year's duration.

18

Internally Displaced Person

Someone forced to flee their home, but who remains within their country's borders.

19

Sex Ratio

The proportion of males to females in a given population, usually expressed as # of males per 100 females.

20

Gender Imbalance

Disparity between males and females in a population.

21

Demographic Dividend

A phenomenon in which the majority of the population is economically active, with a low dependency ratio, as produced by the lag time between falling DR and falling BR (eg. India).