Pod Review Guide: Species Interactions Self Study

AP Biology: Unit 8: Interactions

Species Interactions

Pod Review Guide: Species Interactions ? Self Study

To Think About: In what ways do interactions between and within populations influence patterns of species distribution over time? In what ways do interactions between and within populations influence the amount of local and global ecosystem changes over time? What results from the interactions of populations within a community? What are the consequences of human actions on both local and global ecosystems? In what ways do interactions between and within populations influence patterns of species distribution over time? In what ways do interactions between and within populations influence the amount of local and global ecosystem changes over time?

Watch and Take Notes:

or

Read and Take Notes:

or Read & Take Notes:

DETAILED NOTES ARE REQUIRED

First: Bozeman Science Animal Behavior video Second: Bozeman Science Populations video Third: Bozeman Science r and K Selection video Fourth: Bozeman Science Exponential Growth video Fifth: Bozeman Science Logistic Growth video Sixth: Bozeman Science Communities video Seventh: Bozeman Science Niche video Then: Bozeman Science Ecological Succession video Last: Bozeman Science Ecosystem Change video

First: Chapter 39.3-39.6 pgs. 803 ? 815 Next: Chapter 40 pgs. 817 ? 844 Then: Chapter 41 pgs. 845 ? 863 Last: Chapter 43 pgs. 882 ? 905

First: Ecology Section of your Review Book

Supplementary Resources: Click the links below for more information to help you learn more about this lesson. Crash Course Biology: The Texas Mosquito Mystery--Population Ecology Glencoe/McGraw-Hill: How Does Competition Affect Population Growth? : Population Dynamics (simulations of various population growth situations) : Exponential Growth Simulator Kimball's Biology Pages: Human Population Growth TED Talks--Hans Rosling: Global Population Growth, Box by Box Science Daily: Competitive Exclusion Principle (Gause's Principle) : Forest Succession Animation National Geographic: Keystone Species Steve Hammack, Los Gatos HS, California: Community Ecology

Listen and Look: Here is a list of key terms and concepts you will hear about and see during these podcasts and chapter readings. Get to know them! Be able to connect them to one another using a concept map.

KEY TERMS: DEFINE ALL

symbiosis

parasitism

amensalism

invasive species

Population

Population density

Density dependent Boom and bust

Logistic growth

Exponential growth

Negative feedback Demographics

Life history

Doubling time

Community

species composition

Niche

Parasitism

Primary succession Fundamental niche

Succession

Climax community

commensalism r-selection Carrying capacity Population dispersion Multiplicative growth Age structure diagram Per capita growth rate Species abundance Secondary succession Commensalism Mutualism

mutualism K-selection Density independent Survivorship curve (type I, II, III) Additive growth BD model Symbiosis Species diversity Realized niche Competitive exclusion principle

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AP Biology: Unit 8: Interactions

Species Interactions

Recall and Review: Use the lectures in the videos and your textbook reading to help you answer these questions in your BILL.

1. Explain how the relationship between the clownfish and anemone demonstrates that ecological interactions between organisms are often quite complex.

2. Create a graphic organizer that illustrates the differences between the various types of interspecies interactions. Describe how these interactions affect population densities of the species involved.

3. Describe how ecosystems employ feedback mechanisms in order to maintain system homeostasis. Explain how a predator-prey interaction acts as an example of a negative feedback loop.

4. The plant kudzu is considered to be an invasive species. Explain how the population of kudzu in the United States has been brought under control in the Southeast. Describe what other effects the introduction of a new predator could have on other organisms in the ecosystems where kudzu lives.

5. Using a non-verbal representation (no words), illustrate the difference between population density and population size.

6. Explain how limiting factors in a population lead to natural selection. 7. Describe at least two conditions that might cause a population to undergo exponential growth. 8. In the "Exponential Growth" video, Mr. Andersen uses a spreadsheet to model the population growth of a group

of rabbits. Explain what happens to the population size when he increases the growth rate and why. What happens to the population size when he makes the growth rate negative, and why? 9. Describe the limiting factors that prevent many populations from reaching their carrying capacities.

10. Explain the difference between density-dependent and density-independent limiting factors. Discuss which of the two have the greatest immediate impact on a population and why.

11. Explain the difference between k-selected species and r-selected species and, using what you know about them, describe how they are adapted to the environments in which they live.

12. Explain how the environment influences an organism's life history strategy.

13. Explain what Mr. Andersen means when he uses the acronym BBECPO. Which is the most inclusive? Which is the most exclusive?

14. Explain how species composition and species diversity affect the makeup of an ecological community.

15. Create a chart that compares and contrasts the biological, economic and social issues faced by the following populations:

a. Third world rapidly growing populations

b. First world slowly growing populations

c. First world rapidly aging populations

16. Discuss why two organisms that are in direct competition with one another cannot occupy the same niche. If two organisms attempt to occupy the same niche, what does this lead to?

17. The competitive exclusion principle states that two species cannot coexist in the same niche with all other ecological factors held constant. Describe a non-biological example of this principle.

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AP Biology: Unit 8: Interactions

18. Examine the graphs below and answer the questions that follow:

Species Interactions

(a) State a claim about the effect of P. aurelia on P. caudatum. (b) State a claim about the effect of P. caudatum on P. bursaria. (c) Predict what you think would happen if P. aurelia and P. bursaria were placed in the same environment. 19. Explain why a niche can be described as an "n-dimensional hypervolume," per George Hutchinson's definition. How does this account for all possible environmental factors in an ecosystem that could affect an organism? 20. Describe the order in which new life will appear in a community undergoing primary succession. What is the importance of decomposers in establishing a new ecological community? Why does the community not begin with large plants such as trees, and large animals such as bears and deer? 21. Using a graphic organizer, describe the similarities and differences between primary and secondary succession.

Learn More: For more examples of ecology principles, use the links below: : Mark and Recapture Simulation Global Footprint Network: Carbon Footprint Calculator US Census Bureau: US and World Population Clocks McGraw-Hill: Primary Succession Animation Greenriver Community College: Competitive Exclusion Animation McGraw-Hill: Niches for Wading Birds

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