Terms : Hide Images
| 87378625 | demography | the study of patterns and rates of population change, including birth and death rates, migration trends, and evolving population distribution patterns. | |
| 87378626 | census | a periodic and official count of a country's population | |
| 87378627 | population density | a measurement of the number of people per given unit of land | |
| 87378628 | arithmetic population density | the population of a country or region expressed as an average per unit area. the firgure is derived by dividing the population of the areal unit by the number of square kilometers or miles that make up the unit. | |
| 87378629 | physiologic population density | the number of people per unit area of arable land. | |
| 87378630 | population composition | graphic representation (profile) of a population according to age and sex. | |
| 87378631 | age-sex pyramid | graphic representation (profile) of a population showing the percentages of the total population by age and sex, normally in five-year groups. | |
| 87378632 | crude birth rate (CBR) | Is expressed as the annual number of live births per 1000 individuals within a given population. | |
| 87378633 | crude death rate (CDR) | Is expressed as an annual number of deaths per 1000 individuals within a given population. | |
| 87378634 | Infant mortality | A figure that describes the number of babies that die within the first year of their lives in a given population. | |
| 87378635 | Total Fertility Rate (TFR) | The average number of children born to a woman during her lifetime, as expressed for a total population | |
| 87378636 | Demographic transition (cycle) | high birth rates and death rates are followed by plunging death rates, producing a huge net population gain; this is followed by the convergence of birth rates and death rates at a low overall level. | |
| 87378637 | Doubling Time | the time required for a population to double in size. | |
| 87378638 | Exponential Growth | cumulative or compound growth (of a population) over a givem time period. | |
| 87378639 | Linear Growth | Expansion that increases by the same amount during each time interval. | |
| 87378640 | Natural Increase | Population growth measured as the excess of live births ovevr deaths per 1000 individuals per year. Doesn't reflect with emigrant or immigrant movements. | |
| 87378641 | Population Explosion | the rapid growth of the world's human population during the past century. | |
| 87378642 | Stationary Population Level (SPL) | the level at which a national population ceases to grow. | |
| 87378643 | Absolute Direction | a compass direction such as north or south. | |
| 87378644 | Relative Direction | direction based on a person's perception of places | |
| 87378645 | Absolute Distance | the physical distance between 2 points usually measured in miles or kilometers | |
| 87378646 | Relative Distance | distance measured, not in linear terms such as miles or kilometers, but in terms such as cost and time. | |
| 87378647 | Push Factors | negative conditions and perceptions that include people to leave their abode and migrate to a new locale. | |
| 87378648 | Pull Factor | positive conditions and perceptions that effectively attract people to new locales from other areas. | |
| 87378649 | Activity (action) Space | the space within which daily activity occurs. | |
| 87378650 | Cyclic movement | movement- for example, nomadic migration- that has a closed route repeated annually and seasonally | |
| 87378651 | nomadism | movement among a definite set of places- often cyclical movement. | |
| 87378652 | seasonal movement | type of cyclic movement--based on climate often. i.e. snowbirds to south | |
| 87378653 | migration | a change in residence intended to be permanent. | |
| 87378654 | emigration/ emigrant | a person migrating away from a country or area, an outmigrant. | |
| 87378655 | forced migration | human migration flows in which the movers have no choice but to relocate. | |
| 87378656 | voluntary migration | population movement in which people relocate in response to a perceived opportunity, not because they are forced to move. | |
| 87378657 | internal migration | migration flow within a nation-state, such as ongoing westward and southward movements in the united states. | |
| 87378658 | external migration | migration across an international border. | |
| 87378659 | interregional migration | migration flow involving movement across international boundaries. | |
| 87378660 | Step migration | migration to a distant destination that occurs in stages, for example, from farm to nearby village and later to town and city. | |
| 87378661 | counter migration | the return of migrants to the regions from which they earlier emigrated | |
| 87378662 | intervening opportunity | the presence of a nearer opportunity that greatly diminishes the attractiveness of sites farther away. | |
| 87378663 | Distance Decay | the various degenerative effects of distance on human spatial structures and interactions. | |
| 87378664 | refugee | people who have been dislocated involuntarily from their original place of settlement. | |
| 87378665 | temporary refugees | refugees encamped in a host country or host region whlie waiting for resettlement. | |
| 87378666 | permanent refugees | refugees who have been substantially integrated into the host country or host region and who are thus seen as long-term visitors. | |
| 87378667 | international refugees | refugees who have crossed one or more international boundaries during their dislocation and who now find themselves encamped in a different country. | |
| 87378668 | intranational refugees | refugees who have abandoned their towen or village but not their country. | |
| 87378669 | immigration laws | laws and regulations of a state designed specifically to control immigration into the state | |
| 87378670 | eugenic population policy | government policy designed to favor one racial sector over others. | |
| 87378671 | expansive population policy | government policy that encourages larger families and raises the rate of population growth. | |
| 87378672 | restrictive population policy | government policy designed to reduce the rate of natural increase. | |
| 87378673 | negative population growth | the actual decline in population due to less than replacement births or extensive diseases |
