Population Dynamics Flashcards
Name two factors that affect national population change.
Migration: - emigrants (loss) - immigrants (gain) Natural Change: - deaths (loss) - births (gain)
What is extrapolation?
Estimating or predicting what will happen based on previous statistics.
Give 5 reasons for the fall in death rate.
Development of modern vaccines Vaccination + immunisation Better healthcare (doctors,hospitals) Hygienic housing Cleaner drinking water Better sewage disposal Better diet
Give 5 reasons for fall in birth rate.
Working women Preference for smaller families Contraception High expense of having children Children now not seen as asset/status symbol
What is the name of the population change graph?
Demographic Transition Model
Describe Stage 1 including its name and an example country.
Name: High Stationary Low total population High death rate High birth rate Example: Swaziland
Describe Stage 2 including its name and an example country.
Name: Early Expanding Now Increasing total population High birth rate Decreasing death rate Example: Cambodia
Describe Stage 3 including its name and an example country.
Name: Late Expanding Rapidly Increasing total population Now decreasing birth rate Decreasing/stabilising death rate Example: Chile
Describe Stage 4 including its name and an example country.
Name: Low stationary Increasing/stabilising total population Decreasing birth rate Low stable death rate Example: UK
Describe Stage 5 including its name and an example country.
Name: Declining? Extrapolation Now declining total population Low decreasing birth rate Low stable death rate Example: Germany
Why does UK and Germany have higher death rate than Cambodia?
Poorer diet
More car/road accidents
Old/ageing population
What can a population pyramid tell us?
The amount of men and women in a particular age range of a country.
Can also predict stage, economy, healthcare etc.
What are some problems countries face with youthful populations?
Less people working and paying tax therefore government has less money for resources
Strain on public services, health care and education
What is the most important factor for the rising rate of population growth?
Fall in death rate.
Describe present global population trends.
Increasing at a decreasing rate.