1. Age Distribution: Used to understand similarities and differences among countries. The most important factor is dependency ratio which is the number of people who are too young or too old to work compared to the number of people in their productive years. We divide the population into 3 groups- 0-14, 15-64, and 65 and older.
2. Agricultural Density: The ratio of the number of farmers to the total amount of land suitable for agriculture. This density helps account for economic differences. MDCs have lower agriculture densities because technology and finance allow a few people to farm extensive land areas and feed many people.
3. Arithmetic Density: The total number of people divided by the total land area. Geographers use this …show more content…
Demography: The scientific study of population characteristics. Demographers look statistically at how people are distributed spatially and by age, gender, occupation, fertility, health, and so on.
15. Dependency Ratio: The number of people under the age of 15 and over age 64 compared to the number of people active in the labor force.
16. Doubling Time: The number of years needed to double a population, assuming a constant rate of natural increase.
17. Ecumene: The portion of earth’s surface occupied by permanent human settlement. The areas of Earth that humans consider too harsh for occupancy have diminished over time, whereas the ecumene has increased.
18. Epidemiologic Transition: Distinctive causes of death in each stage of the demographic transition. A branch of medical science concerned with incidence, distribution, and control of diseases that are prevalent among a population at a special time and are produced by some special causes not generally present in the affected locality.
19. Infant Mortality Rate: The total number of deaths in a year among infants under 1 year old for every 1000 live births in a society. The highest rates are in the sub-Saharan Africa. The IMR reflects the country’s health-care …show more content…
23. Natalism: Belief that promotes human reproduction. It limits access to abortion and contraception.
24. Natural Increase Rate: The percentage growth of a population in a year, computer as the crude birth rate minus the crude death rate.
25: Neomalthusians: Neo-Malthusianism argues that two characteristics of recent population growth make Malthus’s thesis more frightening. 1. In Malthus’s time only a few relatively wealthy countries had entered stage 2 characterized by rapid population increase. Malthus failed to anticipate that relatively poor countries would have the most rapid population growth. 2. World population growth is outstripping a wide variety of resources, not just food production.
26. Overpopulation: The number of people in an area exceeds the capacity of the environment to support life at a decent standard of