Sound off.In "Turkey Time" (p. 12), you learned about how conservation measures--like stricter hunting guidelines--helped wild-turkey populations grow. How do scientists figure out if there is an increase of wild turkeys? By counting the number of gobbles they hear! Each April, scientists in Indiana Indiana, state, United States Indiana, midwestern state in the N central United States. It is bordered by Lake Michigan and the state of Michigan (N), Ohio (E), Kentucky, across the Ohio R. (S), and Illinois (W). travel to different counties in the state to listen for turkey gobbles. They stop at several different locations within a county to count the number of turkey gobbles they hear. Then, they calculate to find the average number of turkey calls for that county. (For example: Scientists stop at two locations in one county. If they hear no turkey calls at one spot and one call at the other spot, the average wild turkey-gobbling count for that county will be 0.5.) If the average number of gobbles increases over the years, that means the population is exhibiting an upward (growing) trend. If fewer gobbles are heard, that means the population is showing a downward (decreasing) trend. Study the data table below to complete the activities that follow. Part 1: Graph It! Directions: On a separate piece of paper, construct a line graph In graph theory, the line graph L(G) of an undirected graph G is a graph such that
HINT - Hierarchical Information NeTs. A language for the CDC 3600. ["HINT: A Graph Processing Language", R.D. Hart, Michigan State U, Apr 1970]. : Use a different-color pencil to represent each different county.) Part 2: Analyze an·a·lyze v. 1. To examine methodically by separating into parts and studying their interrelations. 2. To separate a chemical substance into its constituent elements to determine their nature or proportions. 3. It! Directions: Use the data table and your line graph to answer the following questions in complete sentences. 1. In the selected years, which county had the largest increase of wild turkeys? 2. In the given years, which county has shown only an upward trend in its turkey population? 3. Estimate the average number of turkey calls in Morgan County Morgan County is the name of a number of counties in the United States of America, generally named for Daniel Morgan, Revolutionary War General:
4. Which year had the greatest number of wild turkey calls? What does this trend suggest about the success of the wild-turkey populations in Indiana? Take It Further Research and report: Why do turkeys gobble 1. gobble - To consume, usually used with "up". "The output spy gobbles characters out of a tty output buffer." 2. gobble - To obtain, usually used with "down". "I guess I'll gobble down a copy of the documentation tomorrow." See also snarf. ? Also, compare the sounds of the adult male and the adult female turkey.
Average Wild-Turkey Gobbling Counts
in Selected Indiana CountiesYear/County
Hickory Morgan Greene Jefferson
1987 1.10 0.27 0.00 1.00
1991 0.33 0.33 0.07 1.07
1995 0.67 0.00 0.13 1.53
1999 0.80 0.67 0.40 1.20
2003 0.53 0.80 0.60 2.13
SOURCE: www.in.gov/dnr/fishwild/publications/notes/gobble.pdf
1. Jefferson County Jefferson County is the name of 25 counties and one parish in the United States. The following are named for Thomas Jefferson, third President of the United States:
2. Greene County Greene County is the name of fourteen counties in the United States of America, each named in honor of American Revolutionary War general Nathanael Greene:
3. The average number of turkey calls in Morgan County in 1997 is approximately ap·prox·i·mate adj. 1. Almost exact or correct: the approximate time of the accident. 2. 0.34. 4. The greatest number of wild-turkey calls was heard in 2003. Since the population is greatest in the most recent year, the wild-turkey populations throughout Indiana likely are growing, Take It Further For an interesting story about turkey gobbling, visit http://dsc.discovery.com/news/briefs/ 20031124/turkey.html |
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