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|Material Type:||Clipart/images/graphics, Internet resource, Videorecording|
|Document Type:||Internet Resource, Computer File, Visual material|
|All Authors / Contributors:||
Alec Murphy; Alphonse Keasley; Ronald C Meyer; Ambrose Video Publishing.; Centre Communications.
|Language Note:||Closed captioned.|
|Performer(s):||Narrated by Alphonse Keasley.|
|Description:||1 streaming video (30 min.) : digital, sound, color.|
|Details:||Mode of access: World Wide Web ; Flash streaming.|
|Contents:||Population distribution --
History of population growth --
Demographic transition model --
Thomas Robert Malthus prediction --
Three types of migration --
Push and pull factors of migration --
Migratory counterflows --
Future population growth.
|Series Title:||Human geography : making sense of planet earth.|
|Responsibility:||produced by Centre Communications Inc. for Ambrose Video Publishing ; producer, Ron Meyer ; director/writer, Ron Meyer.|
In the second program, population geographers introduce the factors that influence population distribution, the growth of cities, and the stages of transition from an agricultural to an industrial society. When world population reached 1 billion people, Malthus predicted that planet Earth's resources would not support future growth; that people would starve. Later, patterns of human migration were defined by geographers and the push and pull reasons for migration, observed. Migrations of the Sioux nation exemplify the push and pull reasons for human migration. Conversely, the movement of people to and from California illustrates the tendency of population systems to equalize over time. The "brain drain" and "brain gain" of students who migrate to obtain a good education, are another example of the diffusion process that occurs in migratory counterflows. The program closes with statistics and predictions of world population growth and a leveling off that geographers expect will occur by 2050.