Human population growth models, demographic transition, and carrying capacity concepts tested on AP Environmental Science.
35 cards · basic cards · AI-written, checked twice. Edit anything.
- What type of population growth occurs when resources are unlimited and the population increases by a constant percentage each time period?
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Exponential growth- What type of population growth slows as the population approaches the carrying capacity of the environment?
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Logistic growth- What does a J-shaped population curve indicate?
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Unlimited exponential growth with no environmental resistance- What does an S-shaped population curve indicate?
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Logistic growth that levels off as it reaches carrying capacity- What is the demographic transition model?
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A model describing how populations shift from high birth and death rates to low birth and death rates as a society develops- What characterizes Stage 1 of the demographic transition model?
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High birth rates and high death rates, resulting in low population growth- What characterizes Stage 2 of the demographic transition model?
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High birth rates but declining death rates, resulting in rapid population growth- What characterizes Stage 3 of the demographic transition model?
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Declining birth rates and low death rates, resulting in slowing population growth- What characterizes Stage 4 of the demographic transition model?
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Low birth rates and low death rates, resulting in stable or very slow population growth- What is birth rate?
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The number of live births per 1,000 people in a population per year- What is death rate?
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The number of deaths per 1,000 people in a population per year- How is the natural increase rate calculated?
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Birth rate minus death rate- What is population doubling time?
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The number of years it takes for a population to double in size- According to the Rule of 70, how do you estimate population doubling time?
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Divide 70 by the annual growth rate percentage- At a population growth rate of 2 percent per year, approximately how many years will it take for the population to double?
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35 years
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