zero population growth (ZPG)

1. (noun) When birth rates equal death rates either locally or globally.

2. (noun) When the people entering a given population through birth or immigration are the same as people leaving the population through death or emigration.

Audio Pronunciation: (zero population growth)

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Usage Notes:

  • Plural: zero population growths
  • Some definitions of zero population growth only consider a balance of death rates to birth rate but not emigration or immigration.
  • Also called:
    • population equilibrium
    • replacement level fertility

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