Total Fertility Rate
Kate Anderson
6 min read
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Study Guide Overview
This study guide covers population dynamics, focusing on Total Fertility Rate (TFR), Infant Mortality Rate (IMR), Crude Birth Rate (CBR), Crude Death Rate (CDR), and migration. It explains how these factors influence population growth and are affected by healthcare, education, economic conditions, and cultural norms. The guide also includes the demographic transition model and practice questions covering population pyramids, trends, and the relationship between population and resources.
#AP Environmental Science: Population Dynamics - Night Before Review
Hey there, future AP Environmental Science rockstar! Let's get you prepped and confident for tomorrow's exam. We're going to break down population dynamics into bite-sized pieces, connect the dots, and make sure you're ready to ace it! 🚀
#Population Basics
#Total Fertility Rate (TFR)
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Definition: The average number of children a woman has during her reproductive years.
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Impact: TFR significantly influences a community's age structure and overall population size.
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Trends:
- Generally declining worldwide.
- Higher in developing countries compared to developed countries.
- Still above the replacement fertility rate in many places.
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Replacement Fertility Rate: 2.1 children per woman. This is the magic number to keep the population stable (no growth or decline, without migration).
Remember: TFR is about averages and potential births. It's a key indicator of future population trends.
#Factors Affecting Population Growth
- TFR is just one piece of the puzzle. External factors play a huge role:
- Healthcare access: Impacts infant mortality and lifespan.
- Education: Especially for women, linked to lower TFRs.
- Economic conditions: Can influence family size decisions.
- Cultural norms: Affect attitudes towards family size and contraception.
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