1 / 37

Chapter 53 in Campbell p. 294-297 in Holtzclaw, Qs #3, 21, 22, 23 p. 304

Concept 3: Population Ecology – Analyzing density, dispersion, demographics, growth, and factors that affect growth . Chapter 53 in Campbell p. 294-297 in Holtzclaw, Qs #3, 21, 22, 23 p. 304. Population Ecology. You must know: How density, dispersion, and demographics can describe a population

louvain
Download Presentation

Chapter 53 in Campbell p. 294-297 in Holtzclaw, Qs #3, 21, 22, 23 p. 304

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Concept 3: Population Ecology – Analyzing density, dispersion, demographics, growth, and factors that affect growth. Chapter 53 in Campbellp. 294-297 in Holtzclaw, Qs #3, 21, 22, 23 p. 304

  2. Population Ecology You must know: • How density, dispersion, and demographics can describe a population • The differences between exponential and logistic growth models of population growth • How density-dependent and density-independent factors can control population growth

  3. TRY THIS! • What kind of distribution does the following represent?

  4. TRY THIS! • What kind of distribution does the following represent? CLUMPING 

  5. WORKSHEET: ACT “52.1” • Any Questions? • Let’s go over...

  6. HOW CAN DENSITY, DISPERSION, AND DEMOGRAPHICS CAN DESCRIBE A POPULATION? • Population • Density • Dispersion • Clumped • Uniform • Random • Demography • Type I survivorship • Type II survivorship • Type III survivorship • Demographic transition

  7. TRY THIS! • Describe the Canadian human population in terms of density, dispersion, and demographics...

  8. TRY THIS! • Describe the Canadian human population in terms of density, dispersion, and demographics... • Overall low density • Clumped Dispersion • Type I Survivorship

  9. WHAT ARE THE DIFFERENCES BETWEEN EXPONENTIAL AND LOGISTIC GROWTH MODELS OF POPULATION GROWTH? • Life History • Age of reproduction • Frequency of reproduction • Number of offspring per reproduction • How do the life histories of the dandelion and the coconut palm compare?

  10. WHAT ARE THE DIFFERENCES BETWEEN EXPONENTIAL AND LOGISTIC GROWTH MODELS OF POPULATION GROWTH? • Exponential Growth Model

  11. WHAT ARE THE DIFFERENCES BETWEEN EXPONENTIAL AND LOGISTIC GROWTH MODELS OF POPULATION GROWTH? • Logistic Growth Model • K=carrying capacity

  12. WHAT ARE THE DIFFERENCES BETWEEN EXPONENTIAL AND LOGISTIC GROWTH MODELS OF POPULATION GROWTH? • What type of growth model does this Daphnia show?

  13. WHAT ARE THE DIFFERENCES BETWEEN EXPONENTIAL AND LOGISTIC GROWTH MODELS OF POPULATION GROWTH? • r-selection – density independent selection • vs • K-selection – density dependent selection • Density dependent factors include” • Competition • Territoriality • Disease • predation

  14. TRY THIS! 1) Which of the following best describes opportunistic, or r-strategy, organisms? (a) They reach sexual maturity rapidly (b) They reach their adult size slowly (c) They attain a large body size (d) They live for a long time (e) The size of their population remains fairly constant

  15. TRY THIS! 1) Which of the following best describes opportunistic, or r-strategy, organisms? (a) They reach sexual maturity rapidly (b) They reach their adult size slowly (c) They attain a large body size (d) They live for a long time (e) The size of their population remains fairly constant

  16. TRY THIS! a)What is the type of growth from 1-7 days? b) What does the dashed line represent? c) After 9 days, is the population regulated by density dependant or independent factors?

  17. TRY THIS! a)What is the type of growth from 1-7 days?Exponential b) What does the dashed line represent?Carrying capacity (K) c) After 9 days, is the population regulated by density dependant or independent factors?Density dependent

  18. NOW… • Do questions #3, 21, 22, 23 p. 304 in Holtzclaw • Answer the AP free response question (handed out in class) on a separate piece of paper – DUE next class • We will be peer assessing your answers, you MUST bring it to class! • Checkpoint next class covering Concept 2 (Biomes) and Concept 3 (Population Ecology)

More Related