the areal extent of a person's regularly visited places within a day
CHAIN MIGRATION
migration of people to a specific location because relatives or members of the same nationality previously migrated there
CYCLIC MOVEMENT
a closed route that is repeated annually or seasonally
DISTANCE DECAY
the diminishing in importance and eventual disappearance of a phenomenon with increasing distance from its origin
FORCED MIGRATION
permanent movement compelled usually by cultural factors
GRAVITY MODEL
a model that holds that the potenial use of a service at a particular location is directly related to the number of people in a location and inversely related to the distance people must travel to reach the service
INTERNAL MIGRATION
permanent movement within a particular country
INTERVENING OPPORTUNITY
the existence of a closer, less expensive opportunity for obtaining a good or service, or for a migration destination
MIGRATION PATTERN
the patterns that people tend to move to
MIGRATORY MOVEMENT
denotes any movement by humans from one locality to another, sometimes over long distances or in large groups
PERIODIC MOVEMENT
motion that recurs over and over and the period of time required for each recurrence remains the same
PERSONAL SPACE
the "space bubble" or the kinesphere that one occupies; it includes all levels, planes, and directions both near and far from the body's center
PLACE UTILITY
the desirability and usefulness of a place to the individual or to a group
PUSH-PULL FACTORS
the push factor involves a force which acts to drive people away from a place and the pull factor is what draws them to a new location
REFUGEE
a refugee is a person who is seeking asylum in a foreign country in order to escape persecution, war, terrorism, extreme poverty, famines, and natural disaster
SPACE-TIME PRISM
the volume of space and length of time within which activities must be confined
STEP MIGRATION
a series of small, less extreme locational changes occur in steps
TRANSHUMANCE
the seasonal migration of livestock between mountains and lowland pastures
TRANSMIGRATION
the belief in the successive reincarnation of the soul in different bodies
