Unit 3 Populations

Reproductive Strategies

100

How can population size increase?

Birth rates and immigration rates

200

Explain how populations can be dispersed. Hint: There are 3 ways.

Clumped, Uniformed, Random

300

Compare and contrast the three types of survivorship curves.

Type 1: Few offspring, high parental care

Type 2: 3-6 offspring, average parental care

Type 3: many offspring, low parental care

400

Describe the niche strategy, reproductive strategy and survivorship curve of a tiger.

Niche: Specialist

Reproductive: K-selected

Survivorship: 1

500

Describe the niche strategy, reproductive strategy and survivorship curve of a human.

Niche: Specialist

Reproductive: K-selected

Survivorship: 1

Growth Curves

100

Give an example of density-dependent factors and density-independent factors.

Dependent: Predation, Space, Resources

Independent: Tornado, Flooding, Drought

200

Rabbits should what type of growth? Exponential or Logistic?

Exponential

300

What is the main difference between exponential and logistic growth?

Logistic is more realistic as there are normally limiting factors in a population.

400

Draw exponential and logistic growth with the appropriate axis titles.

Answers will vary.

500

What is k on a logistic graph?

Carrying capacity

Developed vs. Developing Countries

100

What are some effects of overpopulation?

hunter, poverty, disease

200

Compare and contrast the populations and lifestyles in developed and developing countries.

Developed: high industrialization, low infant mortality, high life expectancy

Developing: low industrialization, high infant mortality, low life expectancy

300

In 2020, 3,605,201 babies were born in the United States. What is the crude birth rate? Hint: Population of US is 330,000,000

10.9 

400

In 2011, China had a population of 1.357 billion people. In 2011, 9.8 million people died. What is the CDR?

72.218

500

Why (in general) are people having less babies?

Answers may vary

Population Pyramids

100

Sketch a rapid growth diagram

Larger base

200

What are the three categories of a population pyramid?

Post-reproductive, reproductive, and pre-reproductive

300

Name 1 countries that has stalled or zero growth? 

Japan, Italy, Greece

400

When did the baby boom happen?

After WW2

500

Name a country experiencing negative growth.

Germany, South Korea

Demographic Transition

100

How many stages of demographic transition are there?

5

200

What is demographic transition?

The transition from high to low birth rates and death rates (going from developing to developed)

300

Describe stage 1 of the demographic transition.

CBR and CDR high, short life expectancies

400

Describe stage 4 of the demographic transition.

CBR=CDR, stalled growth, high affluence

500

What are negative impacts of population decline?

Threatens economic growth, labor shortages