All Flashcards
How does access to family planning influence population?
Contraception and reproductive health services can lower birth rates.
How does nutrition affect population dynamics?
Adequate food supply is crucial for healthy development and can affect death rates.
What is the link between education and birth rates?
Education, especially for women, is linked to lower birth rates.
How do job opportunities impact family size decisions?
Economic stability can affect family size decisions.
What is the impact of industrialization on population?
Improved sanitation, increased food production, and medical advances lead to exponential population growth.
Explain the Rule of 70.
A quick way to estimate how fast a population is growing by dividing 70 by the percentage growth rate.
Give examples of density-independent factors.
Natural disasters (tsunamis, earthquakes, wildfires) and extreme weather events.
Give examples of density-dependent factors.
Resource availability, disease, and competition.
How does human population growth affect the environment?
It is directly linked to resource depletion, pollution, and habitat loss.
Why is understanding population dynamics crucial for sustainability?
It's essential for developing sustainable practices and managing resources effectively.
What is birth rate?
Number of births per 1000 people.
What is death rate?
Number of deaths per 1000 people.
Define infant mortality.
Number of deaths per 1000 live births.
What is immigration?
Movement into a population.
What is emigration?
Movement out of a population.
Define doubling time.
The time it takes for a population to double in size.
What are density-independent factors?
Factors that limit population growth regardless of population size.
What are density-dependent factors?
Factors that limit population growth based on population size.
What is population growth rate?
The rate at which a population is growing or declining.
Define annual percent change.
The net change in population size as a percentage.
What is birth rate?
Number of births per 1000 people.
What is infant mortality rate?
Number of deaths per 1000 live births.
What is immigration?
Movement into a population.
What is emigration?
Movement out of a population.
What is doubling time?
The time it takes for a population to double in size.
Define density-independent factor.
Factor limiting population growth regardless of population size.
Define density-dependent factor.
Factor limiting population growth based on population size.