Overpopulation (Leaving Cert Geography): Flashcards
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Definition of overpopulation
Definition of overpopulation
Population exceeds carrying capacity of natural resources
Definition of carrying capacity
Definition of carrying capacity
Max number of people a region's natural resources can support
Definition of underpopulation
Definition of underpopulation
Not enough people to fully exploit available natural resources
Definition of optimum population
Definition of optimum population
Exact number needed for highest standard of living from resources
Common mistake about overpopulation
Common mistake about overpopulation
Confusing it with high population density
Netherlands: density & overpopulation status
Netherlands: density & overpopulation status
501/km², NOT overpopulated (high resources available)
Mali: density & overpopulation status
Mali: density & overpopulation status
14.5/km², overpopulated (lacks resources)
When was Ireland overpopulated?
When was Ireland overpopulated?
Great Famine (1845-9) until the 1950s
Three most important natural resources under strain
Three most important natural resources under strain
Water, arable land, and fossil fuels
Percentage of China's arable land polluted
Percentage of China's arable land polluted
80 per cent
Urban slum examples showing overpopulation impacts
Urban slum examples showing overpopulation impacts
Kolkata and São Paulo
Where does underpopulation frequently occur?
Where does underpopulation frequently occur?
Developed, highly industrialised countries with low birth rates
What does underpopulation lead to?
What does underpopulation lead to?
Labour shortages
Why is optimum population theoretical?
Why is optimum population theoretical?
Variables like population change, markets, migration prevent it
Factors that increase carrying capacity
Factors that increase carrying capacity
Technology, resource management, economic development