4.3 monitoring human populations and changing growth rates

economic development

transitional

industrial

preindustrial

postindustrial

high birth and death rate

high birth rates death rates little lower than preindustrial

drop in both birth and death rates

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

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

wide base= large young pop (rapid growth)

pre-reproductive: ages 0-14

less developed countries

reproductive: ages 15-44

post reproductvie: ages 45+

small base= slow pop growth (more elders)

usually in developed countries

I actually hate mind maps