soci Flashcards
environmental sustainability
the degree to which a human activity can be sustained without damaging or undermining basic ecological support systems
capital accumulation
refers to the reinvestment of profit in order to increase capital assets
demography
the study of populations
growth rate
the current population - initial population/initial x 100
population composition
changing fertility, mortality and migration rates
sex ratio
number of men for every 100 women
population pyramid
population distribution by sex and age
malthusian theory
three factors would control human population that exceeded the earth’s carrying capacity
three factors of Malthusian theory
war, famine and disease
positive checks
increase mortality rates - keeping the population in check (war, famine and disease)
preventative checks
i.e. birth control and celibacy
reasons people have not died off
technological increases in food production, new medicine, contraception
zero population growth (ZPG)
the number of people entering a population through birth or immigration is = to number of people leaving it via death/emigration
cornucopian theory
human ingenuity can resolve any environmental or social issues that develop
demographic transition theory
future population growth will develop along a predictable four-stage model
stage 1 of demographic transition theory
birth, death, and infant mortality rates are all high, life expectancy is short, i.e. 19th cen North America
stage 2 of demographic transition theory
birth rates are higher while infant mortality and the death rates drop, life expectancy also increases, i.e. Afghanistan