the number of babies born per 1,000 people in an area
the geometric center of a country's irregular polygon.
the number of deaths per 1,000 people in an area
The process of change in a society's population from a condition of high crude birth and death rates and low rate of natural increase to a condition of low crude birth and death rates, low rate of natural increase, and a higher total population.
high birth rates (25-50); high death rates (25-40); low life expectancy (33-50), low-moderate RNI (-.01-1.9%)
high birth rates (25-50); decreasing death rates (8-25); increasing life expectancy (<70); highest RNI (1.5-3.5%)
Stage 2.5: Newly Industrialized Countries
decreasing birth rates (12-30); lowering death rates (5-18); increasing life expectancy (<75);higher RNI (1.1-2.7%)
lowering birth rates (12-30); low death rates (5-12); higher life expectancy (<78); lowering RNI (0.5-1.2%)
low birth rates (8-16); low death rates (5-12); highest life expectancy (<82); low to negative RNI (0.8 to -0.6%)
The number of people under the age of 15 and over age 64, compares to the number of people active in the labor force.
the time required for a population to double in size
A form of population movement in which a person regularly moves between two or more countries and forms a new cultural identity transcending a single geopolitical unit.
Permanent movement compelled usually by cultural factors.
migration to a distant destination that occurs in stages, for example, from farm to nearby village and later to a town and city
migration of people to a specific location because relatives or members of the same nationality previously migrated there
movement that has a closed route and is repeated annually or seasonally
infant mortality rate
the number of babies that die per 1,000 babies in one year
This is when the projection population show exponential growth; sometimes shape as a j-curve. This is important because if the population grows exponential our resource use will go up exponential and so will our use as well as a greater demand for food and more.
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.
The difference between the level of immigration and the level of emigration.
A bar graph representing the distribution of population by age and sex. Males on left, Females on right.
factor, such as unemployment or the lack of freedom of speech, that makes people want to leave their country and move to another one
factor such as freedom or employment opportunities that attract a person to a country
rate of national increase
the annual rate of population growth. Birth Rate - Death Rate
people are drawn in to cities for opportunities; driven by poverty and hope to do better
shows the world's population levels during the four stages of the Demographic Transition Model. Population growth starts slow to moderate, then becomes exponential. After a period of exponential growth, population increase eventually slows due to lack of resources and population may even decline.
British economist who believed natural laws governed economic life; populations increased faster than food production; predicted that competition for resources would result in starvation for populations, wrote An Essay on the Principle of Population
Total fertility rate
The number of children born to an average woman in a population during her entire reproductive life