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4.3 monitoring human populations and changing growth rates (economic…
4.3 monitoring human populations and changing growth rates
economic development
transitional
high birth rates death rates little lower than preindustrial
industrial
drop in both birth and death rates
preindustrial
high birth and death rate
postindustrial
birth equal death rates= declining population growth
improvement in healthcare, pensions, job availability cause better economic development
pop growth
A population pyramid, also called an "age-sex-pyramid", is a graphical illustration that shows the distribution of various age groups in a population, which forms the shape of a pyramid when the population is growing
number of people in different age groups determine how fast a pop is growing (pop pyramids)
affected by births, deaths and migration
wide base= large young pop (rapid growth)
less developed countries
pre-reproductive: ages 0-14
reproductive: ages 15-44
post reproductvie: ages 45+
small base= slow pop growth (more elders)
usually in developed countries
slowing it down by economic development
more jobs for womens
planned parenthood
anti-natalist policies (encourage fewer people having births)
why should we slow it?
we can sustain life with our current lifestyles
I actually hate mind maps