UNIT 4: POPULATION IN SPAIN AND EUROPE
DEMOGRAPHY
Is the study of human populations
There are four factor than can change the size of population
nº of birth
nº of death
immigration (people who arrive a country)
emmigration ( people who leave the country)
The absolute population
Is the total number of inhabitants in an area
To calculate the population changes, you need to consider:
NATURAL INCREASE = Nº OF BIRTH - Nº DEATH
natural increase can be
POSITIVE natural increase
NEGATIVE natural increase
There are more birth than death
There are more death than birth
ACTUAL INCREASE= natural increase + nº of immigrants - nº of emigrants = actual increase
positive actual increase
negative actual increase
The total population has increased
The total population has increased
POPULATION DENSITY
Describes the average nº of people in an area. Population / square kilometres=population density
FACTORS AFFECTING POPULATION DENSITY
Natural causes: like floods, earthquakes and droughts
Social causes, like access to good education and medical services
Political causes, like wars
Economic causes, like job opportunities and better wages
CHARACTERISTIC OF THE POPULATION OF SPAIN
NEGATIVE NATURAL INCREASE
POSITIVE ACTUAL INCREASE
LIFE EXPECTANCY
- spain population has increase a negative natural increase
- People live longer, Which means it has an ageing population
-have fewer children than in the past
- The median age of the population of Spain is about 43,5
- Immigration is helping the country to grow
- The absolute population of Spain decreased from 2012 - 2016
Is the average nº of years a person is expected to live. Now is about 83 years.
MIGRATION TRENDS IN SPAIN
INMIGRATION
Is when people move to a new country
EMMIGRATION
People leave their country To move somewhere else
INTERNAL MIGRATION
Internal migration is when people move from one area to another area within their own country
RURAL EXODUS
people move from rural areas to cities to find work or work in factories
RURAL EXODUS CAN CAUSE OVERPOPULATION IN URBAN AREAS: this can cause:
- Environmental problems (air or water pollution)
- unemployments among rural migrants
- lack of food supplies
-more demand of public services