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IGCSE Population Definitions
Terms in this set (20)
Birth rate (BR)
Number of live births per 1,000 population per year
Death rate (DR)
Number of deaths per 1,000 population per year
Birth rate minus death rate. NI can be a negative figure, eg, BR 9, DR 12 = NI of 9 - 12 = -3 per 1000 (or ‰)
Average number of children born per woman in a population / average number of children born to women aged 15 - 45 in her lifetime
Replacement rate (Replacement level Fertility)
Total fertility rate at which each person replaces themselves with a child. This should be a TFR or 2.0, but due to mortality, and inbalance between boys and girls, the current replacement rate is 2.1
Deaths of children under 12 months old per 1,000 live births per year
Deaths of children under 5 years old per 1,000 live births per year
The average number of years an individual can be expected to live, given current social, economic, and medical conditions. Life expectancy at birth is the average number of years a newborn infant can expect to live.
Initiative to attempt to promote the increase (pro-natal) or decrease (anti-natal) of BR in a country or region
Proportions of people in different age-gender groups in a population, represented usually by a population pyramid
Mirror bar graph of the age-sex cohorts in a population. Used to depict population structure
An increasing proportion of elderly dependents within a countries population structure.
People aged under 15 + those older than 65 (or 60) proportional to the total population, calculated by <15 + >65 / 15 - 65s The higher the dependency ration the greater the potential economic problems
The people living in a place/country
Demographic Transition Model
change in a population from high birth and death rates to low birth and death rates
More economically developed country: a highly industrialized country with high average GNP per capita. Eg. Switzerland
Less economically developed country: a country with low to moderate industrialization and low to moderate average GNP per capita. Eg. Tanzania
Providing information, clinical services, and contraceptives to help people choose the number and spacing of children they want to have.
The number of individuals in an area of a specific size
how population is spread out in an area
THIS SET IS OFTEN IN FOLDERS WITH...
Option D: Geophysical Hazards
IB Geo Paper 1 Key Stats for Case Studies
IB Geo Paper 2 Key Stats for Case Studies
IB Geo Paper 3 Key Stats for Case Studies
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