15 Jun BIOLOGY 102 – Reviewing the data and figure above what are two patterns that you
V Question
LESSON 8 SHORT ANSWER DROP BOX
SHORT ANSWER QUESTIONS:
Utilize the following resources to complete this assignment: Krakatau,Mt. St. Helens, bubbl.us,World Population: More Than Just Numbers, and .census.gov/population/international/data/idb/informationGateway.php”>U.S. Census Bureau: International Data Base (IDB).
Save your assignment with your last name and the assignment name. For example “Smith Unit 8 SAQ” and then upload your work by clicking Browse (items should be saved as .doc, .docx or .rtf).
Your goal is to demonstrate your knowledge. Do this by explaining EVERYTHING fully. Some questions require you to complete research and supply evidence including citations and a reference.
All answers should be original and authoredby you.
Answer the questions/prompts using your readings and any other appropriate source.
Ecological Relationships
I. Predator/Prey
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.gif”>One famous ecological relationship is between the Canadian lynx (predator) and the snowshoe hare (prey). Data on these two species was collected by the Hudson Bay Company for their pelt-trading records. Below is a data set and figure from their records. from 1900 – 1920.
TYPE ANSWERS HERE
1. Reviewing the data and figure above what are two patterns that you see?
2. Do the peaks of the predator population ____________ those of the prey population?
a. match
b. lead
c. follow
3. Which of the following figures would be most likely represent the previous 20 years of data?
a..gif”>
b.gif”>
c. .gif”>
4. What is a potential drawback to using the pelt data to represent the population numbers?
5. Hares populations increase until they have consumed all available grazing material. In the short term, a graph of their population may resemble the one below. What type of growth is pictured here?
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6. What are 2 factors that would limit the population of hares resulting in the actual data that is seen? Complete research to answer this question and include internal citation and a reference.
7. Many plants produce secondary compounds — chemicals which make browsable plants less palatable and nutritious in response to browsing. What would be the result of an increase in these compounds on the Hare population? Complete research to answer this question and include internal citation and a reference.
II. Succession: Read about the volcanic explosions of Krakatau (1883) and .wired.com/thisdayintech/2009/05/dayintech_0518″>Mt. St. Helen’s.
TYPE ANSWERS HERE
Name three methods by which plants and animals might reach an entirely barren island such as Krakatau. Complete research to answer this question and include internal citation and a reference.
What is one organism that might use each of the methods you listed in the question above. Complete research to answer this question and include internal citation and a reference.
10. LikeKrakatau, Mount St. Helens in Oregon was completely devoid of life after its eruption in 1980. How would you expect the succession/recolonization of the Island of Krakatau by plants and animals to differ from that of Mount St. Helens?
III. Producers, Consumers, & Food Webs
11. Using the bubbl.us site, create a food web (not a food chain) by following the parameters below.
a. You food web should have 4 tropic levels.
b. Each tropic level should be a different color, list the colors you use below.
Producer:
Primary Consumer:
Secondary Consumer:
Tertiary Consumer:
c. Include example organisms for each level.
INSERT FOOD WEB HERE
TYPE ANSWERS HERE
12. How much energy moves from one level to the next? Complete research to answer this question and include internal citation and a reference.
13. How does this energy flow affect the number of levels a food web can have? Complete research to answer this question and include internal citation and a reference.
14. Because limited energy is available to the top consumers on a food web, how does this affect the territory size of these large consumers? Complete research to answer this question and include internal citation and a reference.
15. What is a specific example of how a conservationist would use their knowledge of ecological topics such as predator/prey relationships, succession and food webs in conservation? Complete research to answer this question and include internal citation and a reference.
You will be utilizing the information in “World Population: More Than Just Numbers” (pgs. 7, 10 – 13 [The titles of these pages are: There have never been so many young people, Women’s lives are changing & More people affect the environment]), the web site, “U.S. Census Bureau: International Data Base (IDB)” and any other appropriate source to answer the questions below.
TYPE ANSWERS HERE
16. Once in the IDB under “Select report” drop down menu, choose the population pyramid graph. Then select (one at a time) Afghanistan, Italy, and the United States and list the shapes of the graphs for these countries in 2011. Possible answers: PYRAMID, COLUMN, UPSIDE-DOWN PYRAMID, COLUMN stacked with a PYRAMID, etc.
Afghanistan: Shape?
Italy: Shape?
United States: Shape?
17. Explain what the shapes of the population pyramid/age structure diagram tell about future population growth for each country. What evidence from the research supports your answer? Complete research to answer this question and include internal citation and a reference.
Afghanistan:
Italy:
United States:
18. Based on your readings, how would you expect a program to increase the education of women within the population to lead to changes in the shape of the population pyramid? Explain your answer. What evidence from the research supports your answer? Complete research to answer this question and include internal citation and a reference.
19. There are multiple methods of population control (contraception, abstinence, limiting number of children, sterilization, education, etc.). What strategy would be most effective (socially and/or biologically) in controlling population growth in undeveloped countries? What evidence from your independent research supports your answer? Complete research to answer this question and include internal citation and a reference.
20. What strategy would be least effective (socially and/or biologically) in controlling population growth in undeveloped countries? What evidence from your research supports your answer? Complete research to answer this question and include internal citation and a reference.
References
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