| Term | Definition |
|---|
| Population Composition | structure of a population in terms of age, sex and other properties such as marital status and education |
| Age-Sex Pyramid | Graph of the sex and age-group distribution of the population. |
| Crude Birth Rate (CBR) | the number of live births yearly per thousand people in a population |
| Crude Death Rate (CDR) | The number of deaths yearly per thousand people in a population |
| Infant Mortality | the death rate during the first year of life |
| Total Fertility Rate (TFR) | The number of children born to an average woman in a population during her entire reproductive life |
| Demographic Transition (cycle) | change in a population from high birth and death rates to low birth and death rates |
| Doubling Time | the time required for a population to double in size |
| Exponential Growth | growth pattern in which the individuals in a population reproduce at a constant rate |
| Linear Growth | arithmetic growth; increases at a constant amount per unit time (1, 2, 3, 4, ...) |
| Natural Increase | population growth measured as the excess of live births over deaths; does not reflect either emigrant or immigrant movements |
| Population Explosion | the rapid growth of teh world's human population during the past century |
| Stationary Population Level (SPL) | the world's population would stabalize, and problems would affect the aged rather then the young |
| Absolute Direction | a compass direction such as north or south |
| Relative Direction | Directions such as left, right, forward, backward, up, and down |
| Absolute Distance | Exact measurement of the physical space between two places. |
| Relative Distance | distance measured, not in linear terms such as miles or kilometers, but in terms such as cost and time. |
| Push Factors | a factor that causes people to leave their homelands and migrate to another region |
| Pull Factors | a factor that draws or attracts people to another location |
| Activity space | the space where everyday activities occur |
| Cyclic Movement | Movement that is repeated after a certain period ot time |
| Nomadism | movement among a definite set of places |
| Seasonal Movement | Movements that are taken based on a seasonal basis. |
| Migration | the movement of persons from one country or locality to another |
| Emigration | movement of individuals out of a population |
| Forced Migration | human migration flows in which the movers have not choice but to relocate |
| Voluntary Migration | Permanent movement undertaken by choice. |
| Internal Migration | Permanent movement within a particular country. |
| External Migration | migration across an international border |
| Interregional Migration | Permanent movement from one region of a country to another. |
| Step Migration | a migration in which an eventual long distance relocation is undertaken in stages as, for example, from farm to village to small town to city |
| Counter Migration | the return of migrants to the regions from which they earlier emigrated |
| Intervening Opportunity | The presence of a nearer opportunity that greatly diminishes the attractiveness of sites farther away. |
| Distance Decay | the effects of distance on interaction, generally the greater the distance the less interaction |
| Refugee | an exile who flees for safety |
| Temporary Refugees | refugees encamped in a host country or host region while waiting for resettlement |
| Permanent Refugees | person or persons who have been permanently displaced from their home |
| International Refugees | refugees who have crossed 1 or more international boundaries during their dislocation |
| Intranational Refugees | Refugees who have abandoned their town or village but not their country. |
Combine with other sets
Share on Facebook
Share on MySpace
!