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Population Dynamics
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  • 1. Population Dynamics SQA HIGHER BIOLOGY Unit 3: Control and Regulation
  • 2. What affects population size?
  • 3. How do we monitor populations?
  • 4. What population changes can be seen here?
  • 5. Learning Content
    • Regulation of plant and animal populations:
      • Population fluctuations: the relative stability of populations, despite short-term oscillations in number.
      • Factors influencing population change.
        • Density-independent factors to include temperature and rainfall.
        • Density-dependent factors to include disease, food supply, predation and competition.
      • Monitoring populations.
        • The need to monitor wild populations.
      • Succession and climax in plant communities.
  • 6. Regulation of Populations
    • What is a population?
    • What is meant by…
      • birth rate
      • death rate
      • population dynamics
      • population density
      • carrying capacity
      • dynamic equilibrium
  • 7. Factors
    • What is meant by reproductive potential and environmental resistance?
    • Explain the difference between ‘density-independent’ and ‘density-dependent’ factors.
      • Outline examples of each type of factor.
    • Complete the Density Worksheet.
    • What is the link between population dynamics and homeostasis?
  • 8. Monitoring Populations
    • Why do we need to monitor wild populations?
      • Outline one example for each of these purposes.
  • 9. Succession
  • 10. Succession
    • What is plant succession?
      • What is a pioneer community?
        • Can you think of examples of these?
      • What is the climax community?
      • What is primary succession?
      • What is secondary succession?
      • What causes succession?
    • What are the characteristics of a climax community?
      • How do these differ in a pioneer community?
  • 11. Succession
    • What is the difference between ‘climatic’ and ‘edaphic’ climax communities?
    • How do humans affect succession?
    • How does intensive grazing affect succession?
  • 12. Congratulations You've reached the end of the Higher course!!