AP Biology Ecology Notes
Name_______________
1. Levels of Organization in Ecological Systems: For each of the following, provide a definition and an example
A. Organism:
B. Population:
C. Community:
D. Ecosystem:
E. Biosphere:
2. Define the difference between biotic and abiotic factors in an ecosystem and give an example of each:
A. Biotic Factors in an ecosystem:
B. Abiotic Factors in an ecosystem:
3. What are biomes?
4. Zones of aquatic ecosystems:
A. Photic Zone
B. Aphotic Zone
C. Benthic Zone
5. For these Aquatic Biomes, identify major characteristics and environmental issues:
Lakes
Wetlands
Streams & Rivers
Estuaries
Intertidal Zones
Ocean Pelagic
Coral Reefs
Marine Benthic
6. Terrestrial Biomes—what is the major environmental factor influencing what lives in that biome?
7. Fill in the following chart of the major land biomes:
Biome
Precipitation
Temperature
Major Plants:
Major Animals:
____________________________________________________________________________________________________________
Tropical Rainforest
Desert
Biome
Savanna
Chaparral
Temperate Grassland
Deciduous Forest
Coniferous Forest
Tundra
Precipitation
Temperature
Major Plants:
Major Animals:
Ecology 2 Notes: Population Ecology
1. Define population again:
2. What is population density?
3. How do biologists measure population density?
4. Define immigration (in terms of ecology):
5. Define emigration (in terms of ecology):
6. What information is contained in life tables?
7. Draw a diagram below of the three main kinds of survivorship curves:
8. What types of organisms exhibit each of the 3 kinds of survivorship curves:
A. Type I Survivorship Curve:
B. Type II Survivorship Curve:
C. Type III Survivorship Curve:
9. Show below a graph indicating exponential growth of a population:
10.What type of curve is seen in exponential growth? (J-shaped or S-shaped)
11.What is the formula for population growth?
12. What is Zero Population Growth?
13.What is occurring in a population that is experiencing exponential growth? Can this be sustained?
14.Define Carrying capacity:
15.Show below a graph indicating logistic growth of a population:
16.What type of curve is seen in logistic growth? (J-shaped or S-shaped)
17.What is K-selection? What traits are seen in organisms that are K-selected?
18.What is r-selection? What traits are seen in organisms that are r-selected?
19.What are density-dependent factors that influence population growth in an ecosystem?
20. Give six examples of density-dependent factors:
a.
b.
c.
d.
e.
f.
21. What are density-independent factors that influence population growth in an ecosystem? Give
examples:
21. What information can be seen in Age-structure pyramids?