Karteikarten
Population Key Words
Karten in diesem Stapel (33)
- 1Carrying capacitythe number of people that an environment can support
- 2Under populationoccurs when there are not enough people to fully utilise resources provided by the environment
- 3Optimum populationwhen the population fully utilises the resources of an area, providing the highest standard of living. This is a balance between pop density, resource availability and technological development
- 4Over populationstandards of living decline and output of resources is reduced because the demand out weighs the supply of resources the environment can provide
- 5Ecological footprintamount of resources used by a population
- 6Birth RateA measure of an areas fertility.
Expressed as the number of live births per 1000 people per year - 7Death RateThe number of deaths of people per 1000 people per year
- 8Life expectancyThe average number of years from birth that a person can expect to live
- 9LongevityThe increase of life expectancy over a period of time.
A direct result of improved medical provision and increased economic development - 10Natural changeThe change in the size of a population due to the interrelationship between birth and death rates
- 11Natural increaseBirth rates > death rates
- 12Natural decreaseDeath rates > birth rates
- 13Fertility rateThe number of live births per 1000 women aged 15-49 in one year
It is also defined as the average number of children each woman will bear in her lifetime. If this is >2.1 then the population will replace itself - 14infant mortality rateThe number of deaths of children under the age of 1 year expressed per 1000 live births per year
- 15Demographic transition modelshows changes in birth and death rates in various levels of development
- 16DTM - Stage 1High fluctuating
- 17DTM - stage 2Early expanding
- 18DTM - stage 3Late expanding
- 19DTM - stage 4low fluctuating
- 20DTM - stage 5decline
- 21forced migrationThe migrant has to migrate because of specific circumstances
- 22International MigrationThe UN defines this as the movement of people across national frontiers, for a minimum of 1 year
- 23MigrationA permanent/semi-permanent change of residence for a group of people or an individual
- 24Net MigrationThe difference between numbers of in-migrants and out-migrants in an area
- 25Net migrational gainin migrants > out-migrants
- 26Net migrational lossout-migrants > in-migrants
- 27Rural to urban migrationIn LEDCs the net migrational gain of urban areas at the expense of rural areas results in urbanisation
- 28Urban to rural migrationIn MEDCs movements from urban areas to rural areas has led to counter-urbanisation
- 29Voluntary MigrationThe migrant makes the decision to migrate
- 30Distance-decaythe number of migrants declines as the distance between the origin and destination country increases
- 31Refugeespage160
- 32Population DensityThe number of people living in a given area, usually measured per square kilometer
- 33Exponential RiseThe J curve - thought to turn into the S curve as pop growth slows down
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- Karteikarten am Population Key Words, erstellt von Zoe Beeny01 am 31/03/2015.
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- Zoe Beeny01
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