Posted: September 14th, 2017

Estimating the Red Wolf Population

Estimating the Red Wolf Population
TITLE: Estimating the Red Wolf Population

INSTRUCTIONS: Enter the Virtual Lab and gather information from the field. Please type your answers. When your lab report is complete, submit it to the Submitted

Assignments area of the Virtual Classroom.
Part I – Answer the following questions while in the Phase 2 lab environment.

Section 1 (Smaller Population Estimation) – One year ago, you set up your first trap area and caught four red wolves. Each one of the wolves was marked with a white

collar. It is now one year later and you have set up six trap areas. Visit these areas and record your results.

Use the following equation when asked to calculate population estimates for the area:

Population Estimate = (Total number re-captured) X (Number marked initially)
(Total number re-captured with mark)
1. How many red wolves were initially trapped, marked, and then released?

2. During the re-trap, how many red wolves were found in trap #1? How many were marked?

3. During the re-trap, how many red wolves were found in trap #2? How many were marked?

4. During the re-trap, how many red wolves were found in trap #3? How many were marked?

5. During the re-trap, how many red wolves were found in trap #4? How many were marked?

6. During the re-trap, how many red wolves were found in trap #5? How many were marked?

7. During the re-trap, how many red wolves were found in trap #6? How many were marked?

8. What was the total number of captured red wolves during the re-trap?

9. What was the total number of marked red wolves during the re-trap?

10. Using the provided equation, calculate the population estimate for the geographical area:

11. The actual population size is 22 red wolves. How did your sample compare with the actual population size revealed here?
Section 2 (Larger Population Estimation) – One year ago, you set up your first trap area and caught fifteen red wolves. Each one of the wolves was marked with a white

collar. It is now one year later and you have set up ten trap areas. Visit these areas and record your results.

12. How many red wolves were initially trapped, marked, and then released?

13. During the re-trap, how many red wolves were found in trap #1? How many were marked?

14. During the re-trap, how many red wolves were found in trap #2? How many were marked?

15. During the re-trap, how many red wolves were found in trap #3? How many were marked?

16. During the re-trap, how many red wolves were found in trap #4? How many were marked?

17. During the re-trap, how many red wolves were found in trap #5? How many were marked?

18. During the re-trap, how many red wolves were found in trap #6? How many were marked?

19. During the re-trap, how many red wolves were found in trap #7? How many were marked?

20. During the re-trap, how many red wolves were found in trap #8? How many were marked?

21. During the re-trap, how many red wolves were found in trap #9? How many were marked?

22. During the re-trap, how many red wolves were found in trap #10? How many were marked?
23. What was the total number of captured red wolves during the re-trap?

24. What was the total number of marked red wolves during the re-trap?

25. Using the equation provided, calculate the population estimate for the geographical area:

26. The actual population size is 100 wolves. How did your sample compare with the actual population size revealed here?

Part II – For the following questions, provide your response in short answer format (2-3 sentences each). Use this Phase’s activities and resources to assist you in

answering:

27. Define and explain the term ‘population’ from a Biology standpoint.

28. Why is it important to sample populations from an Ecology standpoint?

29. What are the steps involved in the Mark and Recapture Method (Lincoln-Peterson Method) in population sampling?

 
30. Why would it be important that the data collected under the Mark and Recapture Method be gathered at the same time each year?

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