Population is defined as a group of individuals of the same species living and interbreeding within a given area
Demography is the study of the size, territorial distribution, and composition of population, including changes in natality, mortality, migration, and social mobility
The difference between population and demography is that population refers to people living within a political or geographical boundary, while demography is the study of human populations and how they change
Demographic analysis focuses on studying changes in the size, growth rates, and composition of a population
Factors that affect population distribution:
Physical factors:
Shape and height of land
Resources
Climate
Human factors:
Political stability
Social preferences
Economic opportunities
The major reason for population changes is the change in birth and death rates. When birth rates exceed death rates, the population increases
Demographic Transition Model:
Stage 1: High birth and death rates, population remains fairly constant
Stage 2: Introduction of modern medicine lowers death rates, rapid population growth
Stage 3: Birth rates decrease due to improved economic conditions, population growth continues at a lower rate
Stage 4: Low birth and death rates, stabilizing the population
Possible Stage 5: Fertility rates fall significantly below replacement level, elderly population exceeds the youthful population
Human migration is the movement of people from one place to another, reflecting changing world conditions and impacting cultural landscapes
Types of migration:
Internal migration
External migration
Emigration
Immigration
Return migration
Seasonal migration
Reasons for migrating:
Push factors: negative aspects that make people want to move
Pull factors: positive aspects that attract people to move
Total fertility rate represents the number of children that would be born to a woman if she were to live to the end of her childbearing years and bear children according to age-specific fertility rates
Adolescent birth rate is the annual number of births to women aged 15-19 per 1,000 women in that age group
Life expectancy estimates the average age members of a population group will be when they die
Child mortality rate refers to the probability of dying between birth and exactly five years of age per 1,000 live births
Consequences of population growth include:
Investment
Overuse of resources
Urbanization
Per Capita Income
Standard of Living
Agricultural Development
Employment
Social Infrastructure
Labor Force
Capital Formation
Environmental Damage
Impact on the World Economy
Rankings of the world's ten most populous countries
Population statistics for Southeast Asia and the Philippines