1. Test Review What to study: Assessment Statements (2.1-2.3)
Command Terms
Reading Guide
Dichotomous Key
Lincoln Index
Simpson’s Index

2. Command Terms Define Explain Describe Evaluate State Construct Suggest
Predict
Calculate
Outline
Estimate
List

3. Estimating Population
In a survey of deer population, 100 deer were marked and released. Two weeks later, a second sample was captured, of which 18 deer were found unmarked and 12 were marked. What would be the estimated population size?

4. Estimating Population
Which method was used to estimate the population? How was the data collected? What assumptions are made?
What are other methods to estimating population?
What are the strengths and limitations to these methods?
Why might we want to know the population?

5. Identifying Organisms
What methods can we use to identify unfamiliar organisms?
What are the two types of keys? How are they constructed?

6. Diveristy What is diversity?
How can we compare the diversity of two different ecosystems?
Why do we want to do this?
What does a high diversity tell us about an ecosystem?
What does a low diversity tell us about an ecosystem? What could be the causes?

7. Food Webs Construct a food web that meets the following criteria:
A is a primary producer
B, C, D, and E are primary consumers
F and G eat B
H eats C
I eats H and D
J eats D and E
K eat G

8. Food Webs Answer the following questions:
Which organism is found at multiple trophic levels? What are those levels?
How would you describe organism G? organism K?
What will happen to organisms B and K if G declines?
Assume this is tropical river that is polluted with a pesticide. In which organism is the highest concentration of pollutant most likely to be found after several years?
If 20 kJ m-2 y-1, is available to I, how much is available to C? How do you know?

9. Pyramids What three pyramids can we use to represent a food chain?
What is the significance of each?

10. Biomass What is biomass? How do we measure it?
What are the strengths and limitations to this type of measurement?
Why do we measure it?

11. Relationships
Describe the following relationships and give an example of each:
Parasitism
Mutualism
Commensalism
Predation
Herbivory
Competition

12. Theory of Island Biogeography
What is it?
Which would have a higher diversity index, a small or large island? Why?
Which would have a higher extinction rate? Why?
How would seabirds affect plant diversity of an island?

13. Limiting Factors What are limiting factors?
What are limiting factors for terrestrial ecosystems? Aquatic ecosystems?
Terrestrial ecosystems: precipitation, soil nutrients
Aquatic ecosystems: temperature, sunlight, dissolved oxygen, nutrient availability, salinity
What is range of tolerance?
minimum and maximum conditions under which a species can survive

14. Limiting Factors
What is the limiting factor of the diagram? Range of tolerance?

15. Abiotic/Biotic Factors
What are examples of abiotic factors in an aquatic ecosystem? In a biotic ecosystem?
What methods are used for measuring these factors?
What are the limitations to each method?
What biotic factors can we measure in an ecosystem?
What methods are used for measuring those factors?