Geography- Population 5.0 / 5 based on 1 ratingTeacher recommended ? GeographyPopulation change and migrationASAQA Created by: Ellie HawkinsCreated on: 01-05-13 08:36 Population Structure The breakdown of a country's population into groups defined by age and sex 1 of 27 Death Rate (DR) The number of deaths per 1000 per year 2 of 27 Birth Rate (BR) The number of live births per 1000 per year 3 of 27 Infant Mortality A measure of the number of infants dying under the age of 1, number of deaths per 1000 births 4 of 27 Natural Increase When the number of births exceed the number of deaths so there is an increase in the population 5 of 27 Natural Decrease When the death rate exceeds the birth rate causing the population to go down 6 of 27 Dependency Ratio Shows how many young people (u16) and older people (+64) depend on people of a working age 7 of 27 Life expenctancy The average age the population is expected to live to 8 of 27 Optimum Population The population at which the quality of life of the peopleof a country is the highest possible at a given level of technological development 9 of 27 Overpopulation When any increase in population reduces the average quality of the life of the population 10 of 27 Underpopulation When an increase in population could increase the average quality of life 11 of 27 Famine A time when there is so little food that many people starve 12 of 27 Starvation The state of extreme hunger resulting from a lack of essential nutrients over a prolonged period 13 of 27 Studenification When large family houses become too expensive to run so the houses are subdivided and let out to students 14 of 27 Gentrification Spontaneous and unplanned change by which individual families buy run down properties and improve them 15 of 27 Conourbation A continuos area that grows and spreads and absorbs other towns and cities 16 of 27 Infilling The use of open space to build houses within a conourbation that is often close to where a green belt restricts 17 of 27 Brownfield Sites sites that have been built on before but have come avaliable for new building because of demolition 18 of 27 Social Welfare The wellbeing of communities, the acess people have to opportunities, housing, services 19 of 27 Fertility Rate The average number of children will have between the ages of 15-44 20 of 27 Migration Rate The difference between the number of people who migrate in and the number of people who migrate out per 100 000 per year 21 of 27 Population density The number of people per kilometre squared 22 of 27 Characteristics of Stage 1 in the DTM Low population, High Birth Rate, High Death Rate 23 of 27 Characteristics of Stage 2 in the DTM Rising population, High Birth Rate, lowering Death rates 24 of 27 Characteristics of Stage 3 in the DTM Rising population, Deacresing Birth Rate, Plateau Death Rate 25 of 27 Characteristics of Stage 4 in the DTM High population, low Birth and Death rates 26 of 27 Characteristics of Stage 5 in the DTM Declining population, Birth rate lower than Death rate 27 of 27
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