1. Ecology and Productivity Review

2. Identify the following relationship and explain why
The cattle egret eats insects that have been disturbed when the cattle forage.
A hermit crab taking up residence in an empty seashell.  
Fleas and mosquitoes feed on blood from other organisms
Aphids eat sap from plants.
In the ocean, certain species, like shrimps and gobies, will clean fish. They remove parasites, dead tissue, and mucous.

3. Abiotic vs. Biotic
Thinking of our Skyline forest, name 3 abiotic factors and name 3 biotic factors

4. Definitions
What is the difference between a population and a community?
What is the difference between a habitat and an ecosystem?
What is a niche? Give an example.

5. Draw a food chain that has 5 trophic levels
Draw a food chain that has 5 trophic levels. Label each trophic level with the following terms: autotroph, heterotroph, producer, primary consumer, secondary consumer, tertiary consumer, quaternary consumer, carnivore, herbivore.

6. Take your food chain and convert it into a into a biomass pyramid
Take your food chain and convert it into a into a biomass pyramid. Label the trophic levels with the quantity of biomass as each level. Start with 632, 980 kg.

7. Draw a Florida Everglades food chain that consists of 5 trophic levels.
Say you start with 467,239 kj m-2 y-1 in the autotroph level. How much biomass will you have by the 5th trophic level?
What rule did you follow to get this number?

8. Identify the different types of pyramids

9. Productivity Write the formula for Gross primary productivity.
Draw a picture that demonstrates GPP.
Write the formula for gross secondary productivity
Draw a picture that represents GSP.

10. Productivity Write the formula for net primary productivity.
Draw a picture that represents NPP
Write the formula for net secondary productivity
Draw a picture that represents NSP

11. Law of Thermodynamics
How does GPP represent the 1st law of thermodynamics?
How does NPP represent the 2nd law of thermodynamics?