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Zorluk: OrtaPopulation Concepts and Growth Dynamics

During a demographic study of a developing nation, researchers recorded a rapid decline in the crude death rate due to improved medical services, while the crude birth rate remained consistently high. Which stage of the Demographic Transition Model does this scenario describe, and what is its effect on population growth?

  1. A
    Stage 1 (High Stationary), producing a stagnant population with high fluctuation.
  2. Stage 2 (Early Expanding), producing rapid population growth due to a high rate of natural increase.Cevap
  3. C
    Stage 3 (Late Expanding), producing moderate growth driven mainly by rural push factors.
  4. D
    Stage 4 (Low Stationary), producing a declining population due to an inverted dependency ratio.

Cevap

Stage 2 (Early Expanding), producing rapid population growth due to a high rate of natural increase.
Stage 2 (Early Expanding) of the Demographic Transition Model is defined by a significant drop in mortality rates—brought about by improvements in public health, healthcare, and food supply—while birth rates remain high. This wide divergence between births and deaths creates a high rate of natural increase, causing rapid population growth.

Adım Adım Çözüm

1
Analyze the given demographic indicators
Crude death rate is falling rapidly while crude birth rate remains high.
Identifying birth and death rate trends is essential for determining the correct Demographic Transition Model stage.
2
Map the birth and death rate trends to the Demographic Transition Model stages
The combination of high birth rate and rapidly falling death rate corresponds to Stage 2 (Early Expanding).
Stage 2 occurs when sanitation and healthcare lower mortality before socio-economic changes lower fertility.
3
Determine the impact on overall population growth
The wide gap between high birth rates and low death rates yields a high rate of natural increase (CBR - CDR).
Natural increase measures population growth excluding net migration.

Anahtar Kavram

Demographic Transition Model - Stage 2 (Early Expanding Stage)
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Konular

Population Concepts and Growth Dynamics

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