2022-05-02T07:30:48+03:00[Europe/Moscow] en true industrial state, K selected organisms, logistic population growth, population momentum, preindustrial state, postindustrial state, r selected organisms, transitional state, type I, type II, type III flashcards
AP ES chapter 5 populations

AP ES chapter 5 populations

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  • industrial state
    third stage of the demographic transition model, in which population growth is still fairly high, but the birth rate drops, becoming similar to the death rate
  • K selected organisms
    organisms that reproduce later in life, produce fewer offspring, and devote significant time and energy to the nurturing of their offspring
  • logistic population growth
    the condition in which a population is well below the size dictated by the carrying capacity of its habitat, so it will grow exponentially; but as it approaches the carrying capacity, its growth rate will decrease and the size of the population will eventually become stable
  • population momentum
    the condition in which a large proportion of women are in child-bearing years, so that a country’s population will continue to grow even if the fertility rate falls to replacement levels
  • preindustrial state
    first stage of the demographic transition model, in which the population exhibits a slow rate of growth and has a high birth rate and high death rate because of harsh living conditions
  • postindustrial state
    the final stage of the demographic transition model, in which the population approaches and reaches a zero growth rate or even drops below it
  • r selected organisms
    organisms that reproduce early in life and often and have a high capacity for reproductive growth
  • transitional state
    second stage of the demographic transition model, in which birth rates are high, but due to better food, water, and health care, death rates are lower, which allows for rapid population growth
  • type I
    survivorship curve with a convex shape, which indicates that most individuals in the population survive into adulthood, with a sharp increase in mortality as the population approaches the species’ maximum age
  • type II
    survivorship curve with a straight-line pattern indicating that mortality and survival rates are fairly constant throughout life
  • type III
    survivorship curve with a concave shape, which indicates that most offspring die young, but if they live to a certain age, they will live a longer life