The Fish And The Forest Questions
Answer the following questions in complete sentences.
- Under what false premise was a bear cull proposed?
- Diagram the Oncorhynchus life cycle.
- Convert the amounts of nitrogen and phosphorus received a month by 250 meters of SE Alaskan stream to English units.
- What are the common and scientific names of the bears discussed?
- Why or why not are bears true hibernators?
- What two behaviors do bears exhibit to maximize their nourishment from the fish?
- What do the salmon eat as they migrate up the freshwater streams and rivers?
- What three things do bears do that make marine-derived nutrients available to stream-side plants and animals?
- List at least twelve animals (aside from bears) that directly use the salmon carcasses.
- Why would there be a greater number of insectivorous birds at salmon streams?
- True or False: Plant growth in northern forests is limited by the cold winters. Explain your answer.
- How could a researcher determine that "up to 70 percent of the nitrogen in the foliage of streamside shrubs and trees is of salmon origin." ?
- Sitka spruce trees are used to make pianos, guitars and violins. Why would musicians care about salmon or bears?
- Diagram the traditional idea of nutrient flow in riparian ecosystems.
- Now add the new understanding of nutrient flow to your diagram.
- What does "viability of the population" mean when setting commercial fishing rates?
- How long will salmon carcass transport by state agencies continue?
- Why would subordinate bears spend time away from the rich salmon streams?
- Based on the 30 hours a week you spend in school, how many weeks did the researchers spend in the platforms watching bears?
- Complete table as indicated below:
Comparison Dominant bears Subordinate bears Winning or losing confrontations Gender Size Age Time spent foraging No. of salmon captured Distance salmon carried Amount of salmon carcass consumed