Evolution of Fur Color in Mice
Name: ______________________
When describing for explaining anything, always use complete sentences.
LAB DATA 1. Take a screen shot of your population graph at 12 months and paste below:
LAB DATA 2. Go back to the simulation and take a screen shot of your pie chart and insert it below.
LAB DATA 3. Field with Hawks. Insert graphs. Label each as Trial 1, Trial 2, and Trial 3.
LAB DATA 4. Beach with Hawks Insert graphs. Label each as Trial 1, Trial 2, and Trial 3.
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Table 1: Example of How to Calculate the Average and Average Percent for Table 2 and 3: |
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Initial Frequency of Colors |
Color of Fur |
Final Number of Mice in Population after 60 months (5 years) |
Average Percent (%)
100 |
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Trial 1 |
Trial 2 |
Trial 3 |
Average Number of Mice
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33.3% Light
33.4% Med.
33.3% Dark |
Light |
60 |
68 |
84 |
(Sum trials 1, 2 & 3 for row and divide the sum by the number of trials. Round to the tenths place |
Divide the average by the total avg number of mice then multiply by 100 to convert the answer to a percentage. Round to the whole number. |
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Medium |
34 |
42 |
62 |
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Dark |
25 |
22 |
15 |
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Total (sum each column) |
60+34+25 = 119 |
68+42+22= 132 |
84+62+15161 |
70.7 + 46.0 + 20.7 = 137.4 |
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LAB DATA 5. Table 2: Population Data for Light, Medium, and Dark Mice in Field and Beach Environments with Hawks
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Initial Frequency of Colors |
Environment |
Final Number of Mice in Population after 60 months (5 years) |
Average Percent (%)
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Fur Color/ Genotype |
Trial 1 |
Trial 2 |
Trial 3 |
Average
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33.3% Light
33.4% Med.
33.3% Dark |
Field |
Light |
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Medium |
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Brown |
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Total (sum) |
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Beach |
Light |
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Medium |
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Brown |
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Total (sum) |
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LAB DATA 6. Page 2, Question 2. Refer to Table 2. Describe how the numbers of dark, medium, and light-colored mice change in the population over a single trial.
LAB DATA 7. Page 2, Question 3. List the final average percentages from Table 2. The population always starts with approximately 33% of each color.
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Field Environment |
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Fur Color |
Initial Average Percentage |
Final Average Percentages |
Compare Initial to Final: (Increase, Decrease, Stayed the Same) |
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Light Brown |
33.3% |
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Medium Brown |
33.4% |
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Dark Brown |
33.3% |
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Describe how the percentage of each fur color changed over time based on your field data above and speculate on why frequencies changed like they did.
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Beach Environment |
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Fur Color |
Initial Average Percentage |
Final Average Percentages |
Compare Initial to Final: (Increase, Decrease, Stayed the Same) |
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Light Brown |
33.3% |
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Medium Brown |
33.4% |
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Dark Brown |
33.3% |
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Describe how the percentage of each fur color changed over time based on your beach data above and speculate on why frequencies changed like they did.
LAB DATA 8. Page 3, Question 4. Before trying the simulation, write a prediction for how the numbers of mice with different colors will change when there is no predator. For example: When the environment is light (beach), the number of dark, medium, and light mice at the end of the trial will be ……
LAB DATA 9. Insert the three graphs for the field environment without hawks. Label them Trail 1, 2, 3:
LAB DATA 10. Insert the three graphs for the beach without hawks. Label them Trail 1, 2, 3:
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LAB DATA 11. Table 3: Population Data for Light, Medium, and Dark Mice in Field and Beach Environments with No Hawks
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Initial Frequency of Colors |
Environment |
Final Number of Mice in Population after 60 months (5 years) |
Average Percent (%)
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Fur Color/ Genotype |
Trial 1 |
Trial 2 |
Trial 3 |
Average
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33.3% Light
33.4% Med.
33.3% Dark |
Field |
Light |
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Medium |
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Brown |
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Total (sum) |
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Beach |
Light |
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Medium |
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Brown |
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Total (sum) |
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LAB DATA 12. Page 3, Queston 5: Refer to Table 3: Compare the average percentages at the end of the trials with the percentages from the beginning for the beach environment. (The population started with approximately 33 percent of each color.) What were the final average percentages in the beach environment for each of the different colors?
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Beach Environment |
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Fur Color |
Initial Average Percentage |
Final Average Percentages |
Compare Initial to Final: (Increase, Decrease, Stayed the Same) |
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Light Brown |
33.3% |
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Medium Brown |
33.4% |
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Dark Brown |
33.3% |
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Did this match your prediction (refer to LDQ 8 for your prediction)? Why?
LAB DATA 13. Page 3, Question 5: Refer to Table 3 In the field environment, what were the final average percentages for each of the different fur colors?
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Field Environment |
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Fur Color |
Initial Average Percentage |
Final Average Percentages |
Compare Initial to Final: (Increase, Decrease, Stayed the Same) |
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Light Brown |
33.3% |
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Medium Brown |
33.4% |
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Dark Brown |
33.3% |
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Did this match your prediction (refer back to LDQ 8 for your prediction)? Why?
LAB DATA 14. Page 5, Question 9: What else do you think influences the deer mouse fur color?
LAB DATA 15. Page 5, Question 10, How could you investigate those factors?
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LAB DATA 16. Take a screen shot of the Summary of Work with check marks. If you are missing any checks, paste your answers into the boxes on pages 1-3. You skipped page 4 and question #7 & #8 in the simulation so it will not have a check mark.
Paste it here: