BIO 240 Disruption of a Marine Food Web Worksheet
BIO 240 Disruption of a Marine Food Web Worksheet Recent
Examine the graphs in the Lab Book, and describe any trends you observe among kelp, purple sea urchin, and sea otter populations.
- What happened to all three populations when catastrophe struck the sea otters? Which populations were wiped out, and in what order?
- Why do you think the removal of the otters caused the other two populations to crash as well?
- Examine the graphs in the Lab Book. What happened to the populations’ growth patterns when 100 individuals of each species were reintroduced to the habitat?
- What would have happened if you had only reintroduced the kelp and the urchin? Explain.
- What if you had only reintroduced five individuals of each species? Would that have worked to restore the populations? Explain your hypothesis.
- Describe the results of the simulation. Was your hypothesis supported?
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