3.1 Generalist and Specialist Species

  • 3.1a Explain why specialists have an advantage in habitats that remain constant, while generalist species tend to have the advantage in habitats that are changing.
  • Textbook correlation Chapter 5, Module 17 

3.2 K-Selected and r-Selected Species

  • 3.2a Describe characteristics of K-selected species that produce few offspring, and r-selected species whose populations are determined by their biotic potential. 
  • 3.2b Examine species that are not uniquely r-selected or K-selected and the impact of invasive species on populations with different reproductive strategies. 
  • Textbook correlation Chapter 6, Module 19

3.3 Survivorship Curves

  • 3.3a Examine survivorship curves to explain the differences in survival rate between K-selected and r-selected species.
  • Textbook correlation Chapter 6, Module 19

3.4 Carrying Capacity

  • 3.4a Interpret a graph of population growth to explain how resources are depleted when a population overshoots the carrying capacity. 
  • Textbook correlation Chapter 6, Module 18

3.5 Population Growth and Resource Availability

  • 3.5a Illustrate how the unequal distribution of resources can result in changes in population. 
  • Textbook correlation Chapter 6, Module 18

3.6 Age Structure Diagrams

  • 3.6a Interpret the parts and vocabulary involved in an age structure diagram.
  • 3.6b Examine trends in age structure diagrams in various economic and societal situations
  • Textbook correlation Chapter 7, Module 22

3.7 Total Fertility Rate

  • 3.7a Explain total fertility rate (TFR) and discuss the social and cultural factors that can affect it. 
  • Textbook correlation Chapter 7, Module 22; Chapter 11, Module 31

3.8 Human Population Dynamics

  • 3.8a Discuss how human populations change in reaction to a variety of factors, including social and cultural factors.
  • 3.8b Analyze environmental problems through graphs and trends to determine factors affecting population growth and decline.
  • 3.8c Discuss the rule of 70, used to approximate doubling time of human populations. Calculation practice will also be provided.
  • Textbook correlation Chapter 7, Modules 22 and 23; Chapter 11, Module 31

3.9 Demographic Transition

  • 3.9a Discuss the concept of demographic transition and the different social and cultural aspects of a country’s population growth.
  • Textbook correlation Chapter 7, Module 23


Unit 3 - Populations

Timeline (per College Board): 8 block periods - 10-15% AP Exam Weighting

AP Central Videos: A single point is assigned for each video (Lab & Classwork category). Students earn this point if they have watched the videos at 80% completion before the review presentation.

It is an expectation that students take their own notes during the lessons.