Modelling Population Growth

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Lab11DataSheetPopulationBiology.docx

Post Lab 11 Data Sheet. Name: _______________

Answer the following questions as you go through the African Lions Modeling Activity. Note: The question prompts correlate with the page numbers on the simulation so you can follow it easily.

To submit this activity

· At the end of the lab protocol, there is a list of multiple-choice and lab data questions.

· Transfer the Lab Data questions to this Lab Data Sheet

· Transfer the answers from the multiple-choice/multiple answer questions to the post lab quiz.

· Save as a PDF and upload to the last question on Post-Lab 11 Quiz.

·

LAB DATA QUESTION 1.

Page 5: Take a screenshot of your graph with your prediction, delete the graph below, then paste your graph. If you are not sure how to do this, watch the tutorial: Video Tutorial.

How to draw your prediction on the graph in the simulation: There are directions to the left of the graph about the middle of the text. Read them. I recommend positioning your mouse, click, move slightly, then click mouse again. Repeatedly clicking and moving allows you to properly shape the graph in small steps.

What do you predict will happen to the lion population after 1963? Explain.

LAB DATA QUESTION 2.

Page 6: Take a screenshot of your graph with your prediction, delete the graph below, then paste your graph. If you are not sure how to do this, watch the tutorial: Video Tutorial. There is no right or wrong answer for your prediction.

LAB DATA QUESTION 12. Page 12:

Take a screenshot of your graph with your prediction, delete the graph below, then paste your graph.

How to draw your prediction on the graph in the simulation: Position your mouse, click, move slightly, then click mouse again. Repeatedly clicking and moving allows you to properly shape the graph in small steps.

LAB DATA QUESTION 13. Page 13

Take a screenshot of your graph with line showing the carrying capacity, delete the graph below, then paste your graph.

How to Draw Carrying Capacity Line in the Simulation: Click once near the y-axis on the left side of the graph and an orange dot will appear. Click again on the right side of the graph and the line will be drawn. You can then move it up and down if you click on the dots to align it properly. Reference Figure 19.5 in Concepts of Biology Textbook for explanation on how to draw carrying capacity.

Based on where you drew your line, what is your estimated carrying capacity? The carrying capacity is where your line intersects the y-axis?

LAB DATA QUESTION 14. Page 14.

Take a screenshot of your graph with line showing the carrying capacity of the hypothesis, delete the graph below, then paste your graph.

What was the environment’s carrying capacity before the disease outbreak? (Hint: Where does the line for carrying capacity intersect the y-axis in the middle of the graph)

Continue to the next page

LAB DATA QUESTION 15. Page 15

Take a screenshot of your graph with your prediction, delete the graph below, then paste your graph. If you are not sure how to do this, watch the tutorial: Video Tutorial.

Do not repeatedly click to draw your prediction: Position the mouse, click, then hold the button down and draw your prediction.

LAB DATA QUESTION 16. Page 16 Compare your prediction to the real data. Is your prediction correct? If there are differences, suggest at least 2 causes.

LAB DATA QUESTION 18. Page 18.

Review the graph on Page 18 and then do some research before answering the questions below. Cite three references or you will be given a zero for plagiarism.

a. Given the shape of these graphs, do you think Earth’s population will reach carrying capacity?

b. What might be some limiting factors?

c. What do you think will happen if we do reach carrying capacity?

References:

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LAB DATA QUESTION 19. Page 19. Answer these questions and 1 or 2 sentences using what you have learned in the lab. It’s

a) What factors can influence how populations change over time?

b) What is the difference between exponential logistical growth?

c) How can we apply population models to real-world data?

d) What inferences can we make about the human population?

Activity II: Modeling Population Assessment.

Introduction:

When Yellowstone National Park was created in the late 1800s, wolves were on the decline.

· In the 1800s, the wolf population hovered between 100- 160 wolves in the park.

· The last wolves in Yellowstone were killed in 1926.

· In 1995, gray wolves were reintroduced to the park.

LAB DATA QUESTION 20. Using what you learned about population growth in Activity I, predict the growth of the wolves by drawing a growth curve on the graph. Hint: Read the introduction to the activity before you draw the graph.

· You may draw either an exponential or logistical growth curve on the graph.

· If you predict logistical growth, label the carrying capacity. Example of graph with carrying capacity (K) labeled.

Instructions on How to Draw the Graph

Choose one of the following methods:

· Open on a tablet and use a digital pen, delete the blank graph, and insert completed graph. Initialize and date graph.

· Print this page, draw a line by hand, take a picture, delete the blank graph, and insert. Initialize and date graph.

· Copy the graph into a drawing program, draw the line, delete the blank graph, and insert. Initialize and date graph.

How to Submit:

· Save as a PDF file.

· Upload to the last question on the Post Lab 11 Quiz.

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