Human Populations Study Guide

How many people are in the US

340 million

How many people are in the world

8 billion

What is a low growth rate

Less than or equal to 1

What is a high birth rate

Greater than or equal to 2.5

What is the equation to doubling time

70 / growth rate

Difference between J and S curve

J curve is exponential while S tapers off as we move to the right

What is a high teen-pregnancy rate

25

What is a low teen pregnancy rate

4.6

How is birth rate calculated

number of births / 1000 people

How is death rate calculated

# of deaths /1000 people

What is rate of natural increase

Growth rate – death rate, without immigration and emigration

Immigration

Number of people who go into a country

Emigration

Number of people who go out of a country

Doubling time

The amount of time it takes for a country’s population to double

Carrying capacity

How much of a population the ecosystem can handle

What happens when the population size goes over the carrying capacity

The population then decreases below the carrying capacity line

Fecundity

The physical ability to have children

What is fertility in terms of EHS

# of children a woman can have

What is a pronatalist

It is pressures to have children

What are some pronatalist pressures to having children

Population replacement

Religion

Status enhancement

Family pressure

Benefits of birth reduction pressures

Economic benefits

Retirement security

Careers

What does literacy rate and women’s rights correlate

They are inversely correlated, so the higher the literacy rate, the lower fertility rate they have

Where does 68% of the nationalities for US refugees come from

DRC

Myanmar

Ukraine

Afghanistan

Iraq

For the graph with different age ranges, what kind of population growth shows a pyramid-like shape

It shows rapid growth

For the graph with different age ranges, what kind of population growth shows a square-like shape

It shows stable growth

For the graph with different age ranges, what kind of population growth shows a reverse pyramid-like shape

It shows declining growth

What two countries have we talked in depth about in terms of implementing successful population programs

China and Iran

What is the dependency ratio

It is the number of nonworking individuals over the working individual

What does the life expectancy graph show us

As we increase the earnings per capita, the life expectancy tends to increase

What does the curve look like for the life expectancy graph

It looks like a log function

Can a population increase even if the birth and death rate go down?

Yes