Click on the “Population Growth” button at the top of the map and look at each of the six featured organisms by clicking on the green magnifying glass icons (as you zoom in deeper, you’ll see more magnifying glass icons to zoom in on) or using the thumbnail shortcuts in the menu.
What type of growth is shown for each of the organisms?
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Students, this question only allows a single try to answer correctly.
Growth of each of the species shown in the different zoom levels is limited by
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Click on the “Species Interactions” button at the top of the map. Click on the “Trophic Level” button on the menu and scroll over each organism to see its trophic level.
What would you expect to be limiting the growth of each species’ population in relation to the trophic level each species occupies?
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With the “Trophic Level” button pushed, click on any animal’s orange flag once to zoom in on it, and again to see that animal’s position in the trophic pyramid.
Which of the trophic levels has the least amount of energy available for exploitation?
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Turn off the buttons on the Species Interaction menu, and click on the “Human Impacts” button at the top of the map. Click on the “Runoff” button in the menu and read the box. Then scroll over each of the green magnifying glasses to see what organisms they represent, and click on the one labeled “Mosquitoes.”
Consider the statement that changes in primary production can influence the outcome of the competition. Which of the following statements best reflects how primary production could influence the competitive interactions of mosquitos?
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Complete the following statement: During succession where sediments eventually fill the lake and terrestrial communities develop ____________.
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Click on the “Succession” button at the top of the map, and compare the opening scene to what you saw when you clicked on the “Human Impact” button at the top of the map.
Human impacts such as nutrient input into a lake can create the conditions necessary to change the area into one that looks more like the scene in the succession tab. Human impacts could also slow the process of succession. Which of the following human impact events would tend to impede or slow succession toward the community pictured when you click on the succession button? (mark "true" for all that apply)
a. Increased heavy metal runoff kills all the plants on the land away from the lake.
b. Increased nutrient input causes an explosion of algal growth.
c. Increased nutrient input causes explosive growth of bacteria.
d. Increased numbers of tertiary consumers (such as hawks) depletes prey items in the lake.
Students, this question only allows a single try to answer correctly.
Click on the “Population Growth” button at the top of the map.
Consider the population growth of fish in the lake. If there is a change in conditions such that beetle population (the fish’s prey) grows exponentially, how might this change the growth curve of the fish?
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Which of the following is the most important in early successional communities forming in and around a pond?
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