ecology keystone predator questions!

1. Which species do Whelk feed on in the Keystone Predator simulation model? (Check all that apply.)
a. Acorn Barnacle
b.Black Pine
c. Chiton
d. Coral Weed
e. Goose Neck Barnacle
f. Nori Seaweed
g. Starfish

2. In the competitive dominance hierarchy among stationary consumers in the simulated intertidal zone, which of the following is true?
a. Acorn Barnacle is dominant over Mussel.
b. Goose Neck Barnacle is dominant over Acorn Barnacle.
c.Acorn Barnacle is dominant over Goose Neck Barnacle.
d. All of the above.

3. What dramatically changes when Whelk are removed from the simulated system?
a. Acorn and Goose Neck Barnacles increase in population size.
b. Mussels increase in population size.
c. Coral Weed increases in population size.
d.The system remains pretty much unchanged.

4. Which species is the most competitively dominant out of the following?
a. Coral Weed
b. Black Pine
c. Nori Seaweed
d. Acorn Barnacle

5. Which species eats Nori Seaweed in the Keystone Predator simulation model?
a. Acorn Barnacle
b. Starfish
c. Whelk
d. Chiton

6. In the simulation, what was the approximate number of Mussels on the rock face a few years (200 weeks) after Starfish were removed?


7. In the simulation, approximately what percentage of the gut contents of Starfish is made up of Coral Weed?
? %

8. In ecology, what is "community structure?"
a. The study of interactions among species.
b. The feeding relationships among species in a community.
c. The number of species in a community.
d. The composition and relative abundance of species in a community.

9. The competitive dominance hierarchy in the simulated intertidal zone focuses on competition for which of the following resources?
a. Food
b. Space
c. Sunlight
d. Water

10. Which of the following is NOT necessary for a species to be a keystone species?
a. A high impact on the rest of the community.
b. Consumption of most other species in the community.
c. A small population size relative to some other species in the community.
d. Removal of the species leads to a large change in the community.