Unit 2 Flashcards
(64 cards)
What is Demography?
The scientific study of population characteristics
Why Study Population?
- There are over 8 billion people living on Earth today
- The Earth’s population grew more between 1950 and 2000 than it did at any other point in history
- Almost all growth is happening in LDCs
How much of the Earth’s population is clustered in 4 main regions?
2/3
What are the 4 main population clusters?
- East Asia
- South Asia
- Europe
- Southeast Asia
- Possible 5th in North America
What is Carrying Capacity?
The ability of the land to sustain a certain number of people
What is Overpopulation?
The lack of resources to meet the needs of the population
What is an Ecumene?
An area of permanent human settlement
Areas considered too harsh to live in:
- Wetlands
- Dry Lands
- High Lands
- Cold Lands
What is Arithmetic Density?
Total number of objects in an area (Total number of people divided by the total land area)
What is Physiological Density?
Number of people supported by a unit of arable (farmable) land
What is Agricultural Density?
Ratio of the number of farmers to the amount of arable land
What is a good example of underpopulation?
US Great Plains (Good conditions to support a population, but sparsely populated due to agriculture)
What is the Crude Birth Rate?
The total number of live births in a year for every 1,000 people alive
What is the Crude Death Rate?
The total number of deaths in a year for every 1,000 people alive
What is the Natural Increase Rate?
The percentage by which a population grows in a year
What is Doubling Time?
The number of years needed to double a population
What is the Total Fertility Rate?
Average number of children a woman will have throughout her childbearing years
What is the Infant Mortality Rate?
Annual number of deaths of infants under one year of age, compared with total live births (Deaths per 1,000)
What is Life Expectancy?
Average number of years an infant can expect to live at current mortality levels
Population Increase Factors:
- Medical Advances
- Quantity and Quality of Food
- Ethnic and Religious Issues
- Economic Issues
- Gender Issues
Population Decrease Factors:
- Natural Hazards and Disasters
- War or Political Turmoil
- Economic Issues
What is Demographic Transition?
A process of change in a society’s population from high crude birth rate and death rates and low rate of natural increase to a condition of low crude birth and death rates, low rate of natural increase, and higher total population
Characteristics of Demographic Transition:
- 5 Stages
- Irreversible
- Every country is in a stage
- Doesn’t take migration into account
Stage 1:
Hunting and Gathering Societies (High CDR and CBR, Low Population)