Download Chapter 6 Study Guide Population and Community Ecology Key

Chapter 6 Study Guide
Population and Community Ecology
Key Terms:
Population
Exponential Growth Model
Resource Partitioning
Community
J-shaped
Predation
Population Ecology
Logistic Growth Model
Pathogens
Population Size
S-shaped
Mutualism
Population Density
Overshoot
Commensalism
Population Distribution
Die-off
Symbiotic
Sex Ratio
K-selected Species
Keystone Species
Age Structure
R-selected Species
Pioneer Species
Density-dependent
Survivorship Curves
Predator-mediated
Factors
Competition
Limiting Resource
Corridors
Ecosystem Engineers
Carrying Capacity
Metapopulation
Ecological Succession
Density-independent
Community Ecology
Primary Succession
Growth Rate
Competition
Secondary Succession
Intrinsic Growth Rate
Competitive Exclusion
Theory of Island
Principle
Biogeography
factors
1. Be familiar with Population Case Studies (Articles): CA Sea Otter and Easter
Island.
2. What levels of complexity make up the biosphere?
3. How do populations and communities differ?
4. What factors regulate the size of a population?
5. Explain Gause’s findings in his experiments
6. What is the difference between density-dependent and density-independent
factors that influence population size? Give example of each.
7. Compare and contrast the exponential growth model and the logistic growth
model.
8. Define metapopulation. How do metapopulations contribute to the
preservation of biodiversity?
9. What are the various ways in which species interact with each other?
10. What are the four types of predators?
11. What roles might keystone species play in an ecosystem?
12. How are species distributed globally, and what processes are responsible for
these patterns?
13. What are the four factors that determine the number of species found in a
community?
14. What does the theory of island biogeography describe?
15. What is the process of ecological succession?
16. Explain how does latitude, time, area, and distance affect the species
richness of a community.
FRQ’s
1. The California Department of Fish and Game is developing a plan to
connect mountain “habitat islands” that are separated by open areas of
flat, arid land in the deserts of southeastern California. These mountain
areas are habitats for desert bighorn sheep, which move extensively
among the islands through habitat corridors. Habitat corridors provide
opportunities for recolonization, seasonal migration, and maintenance of
genetic variation among the metapopulation of desert bighorn sheep.
a. Explain what is meant by a metapopulation and how it relates to the
desert bighorn sheep.
b. Indentify two density-dependent factors and one densityindependent factor that could affect the populations of desert
bighorn sheep.
c. Explain the consequences of the desert bighorn sheep population if
the plan to connect the mountain habitat islands is not
implemented.
d. Explain how the theory of island biogeography applies to the
mountainous areas of southeastern California.