Demographic Transition Model Explained: Stages, Characteristics, and Examples (AP Environmental Science)

📚 Quick Study Guide

• 📈 Definition: The Demographic Transition Model (DTM) illustrates the shift in birth and death rates in a population over time.
• stages: There are typically considered to be 5 stages.
• 🌍 Stage 1 (High Stationary): High birth and death rates; population is relatively stable.
• ⚕️ Stage 2 (Early Expanding): High birth rates, declining death rates; rapid population growth.
• 🏭 Stage 3 (Late Expanding): Declining birth rates, low death rates; population growth slows.
• 🏢 Stage 4 (Low Stationary): Low birth and death rates; population stabilizes at a high level.
• 🌍 Stage 5 (Declining): Death rate is higher than birth rate, leading to a population decline.
• 💡 Key Factors: Economic development, healthcare improvements, and education influence the DTM.

Practice Quiz

1. Which stage of the Demographic Transition Model is characterized by high birth rates and declining death rates?
   1. Stage 1
   2. Stage 2
   3. Stage 3
   4. Stage 4
2. In which stage of the DTM is a country likely to experience the highest rate of population growth?
   1. Stage 1
   2. Stage 2
   3. Stage 3
   4. Stage 4
3. What is a primary factor that contributes to the decline in death rates during Stage 2 of the DTM?
   1. Increased birth rates
   2. Improved healthcare and sanitation
   3. Decreased food production
   4. Increased warfare
4. Which of the following is a characteristic of Stage 4 of the Demographic Transition Model?
   1. High birth and death rates
   2. Low birth and death rates
   3. Declining birth rates and high death rates
   4. High birth rates and declining death rates
5. Which stage of the Demographic Transition Model is characterized by a population decline?
   1. Stage 1
   2. Stage 3
   3. Stage 4
   4. Stage 5
6. Which of the following factors typically leads to a decline in birth rates as a country moves from Stage 2 to Stage 3 of the DTM?
   1. Increased infant mortality
   2. Increased access to education and contraception
   3. Decreased economic opportunities
   4. Decreased urbanization
7. Which of the following countries is most likely in Stage 4 of the Demographic Transition Model?
   1. Afghanistan
   2. Niger
   3. Japan
   4. Guatemala