Exam 54: Community Ecology

The symbols +, -, and o are to be used to show the results of interactions between individuals and groups of individuals in the examples that follow. The symbol + denotes a positive interaction, - denotes a negative interaction, and o denotes where individuals are not affected by interacting. The first symbol refers to the first organism mentioned. -What interactions exist between a bee and a flower?

Which of the following best describes the consequences of white-band disease in Caribbean coral reefs?

The symbols +, -, and o are to be used to show the results of interactions between individuals and groups of individuals in the examples that follow. The symbol + denotes a positive interaction, - denotes a negative interaction, and o denotes where individuals are not affected by interacting. The first symbol refers to the first organism mentioned. -What interactions exist between a "carrier crab" and "sea urchin hitch-hiker"?

Which term do ecologists use to describe the ability of a community either to resist change or to recover to its original state after change?

The 1988 Yellowstone National Park lodgepole pine forest fires were likely the result of

Use the following diagram of a hypothetical food web to answer the following questions. The arrows represent the transfer of food energy between the various trophic levels. -Which letter represents an organism that could be a producer?

There are more species in tropical areas than in places more distant from the equator. This is probably a result of

How did Eugene Odum describe an ecological niche?

Which of the following best describes resource partitioning?

Evidence shows that some grasses benefit from being grazed. Which of the following terms would best describe this plant-herbivore interaction?

The symbols +, -, and o are to be used to show the results of interactions between individuals and groups of individuals in the examples that follow. The symbol + denotes a positive interaction, - denotes a negative interaction, and o denotes where individuals are not affected by interacting. The first symbol refers to the first organism mentioned. -What interactions exist between a lion pride and a hyena pack?

The next series of questions presumes that you have at least once visited and have some knowledge of the fast-food restaurant McDonald's. Use your knowledge of McDonald's and your understanding of community ecology to answer the following questions about an ecological community, McDonaldland. -According to the McDonaldland scenario, which of the following would best define an ecological community?

Which of the following is a correct statement about the MacArthur/Wilson Island Equilibrium Model?

The symbols +, -, and o are to be used to show the results of interactions between individuals and groups of individuals in the examples that follow. The symbol + denotes a positive interaction, - denotes a negative interaction, and o denotes where individuals are not affected by interacting. The first symbol refers to the first organism mentioned. -What interactions exist between the cattle egret and grazing cattle?

The next series of questions presumes that you have at least once visited and have some knowledge of the fast-food restaurant McDonald's. Use your knowledge of McDonald's and your understanding of community ecology to answer the following questions about an ecological community, McDonaldland. -Which of the following would be considered a keystone species in McDonaldland?

Many zootonic pathogens are highly virulent, can result in high death rates, and can cause world-wide pandemics. One example, the H5N1 avian flu, not only killed millions of domestic poultry, but also caused the deaths of people who came in contact with sick birds. What is the most probable hypothesis or reason as to why the H5N1 flu can be so deadly to people?

The next series of questions presumes that you have at least once visited and have some knowledge of the fast-food restaurant McDonald's. Use your knowledge of McDonald's and your understanding of community ecology to answer the following questions about an ecological community, McDonaldland. -In McDonaldland, which of the following would be an example of an introduced species?

What percentage of all species on Earth are parasites?

Keystone predators can maintain species diversity in a community if they

Which of the following is an example of cryptic colouration?