Download Food web

Standard 2 - Interdependence
Course Level Expectations:
CLE 3210.2.1
Investigate how the dynamic equilibrium of an ecological
community is associated with interactions among its
organisms.
SPI 3210.2.1 Predict how population changes of organisms at different
trophic levels affect an ecosystem.
Textbook pages: Chapter 18 sec1-3 p359-370, Chapter 20 sec. 1 p399-404,
Chapter 20 sec 2 405-407
Define the following terms
Ecology
Interdependence Biosphere
Ecosystem
Community
Population
Habitat
Biotic
Abiotic
Acclimation
Dormancy
Migration
Niche
Producer
Chemosynthesis
Biomass
Consumer
Herbivore
Carnivore
Omnivore
Detritivore
Decomposer
Trophic level
Food chain
Food web
Predation
Interspecific
competition
Symbiosis
Parasitism
Mutualism
Commensalism
Species richness Species
eveness
Disturbances
Stability
Questions
1. How does a food chain differ from a food web?
2. Explain why food chains do not exceed 3-4 levels.
3. Differentiate between parasitism, commensalism and mutualism. Give examples
of each.
4. How does the increase of organisms in one part of the food web affect others in
the web?
5. What is the ultimate energy source for most food webs?
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CLE 3210.2.2
Analyze and interpret population data, graphs, or diagrams.
SPI 3210.2.2 Interpret the relationship between environmental factors
and fluctuations in population size.
SPI 3210.2.3 Determine how the carrying capacity of an ecosystem is
affected by interactions among organisms.
Textbook pages: Chapter 19 sec 1-3 p 381-391
Define the following terms
Population
Population
density
Dispersion
Birth rate
Death rate
Life expectancy Growth rate
Exponential
model
Logistic model
Limiting factor
Carrying
capacity
Densitydependent
factor
Inbreeding
Densityindependent
factor
Questions
1. Differentiate between random, uniform, and clumped dispersion.
2. Draw and compare the three types of survivorship curves. What types of
populations would have each type of curve?
3. Be able to interpret population fluctuation charts like the one in Figure 19-10 on
page 388.
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CLE 3210.2.3
Predict how global climate change, human activity,
geologic events, and the introduction of non-native species
impact an ecosystem.

SPI 3210.2.4 Predict how various types of human activities affect the
environment.
SPI 3210.2.5 Make inferences about how a specific environmental
change can affect the amount of biodiversity.
SPI 3210.2.6 Predict how a specific environmental change may lead to
the extinction of a particular species.
Textbook pages Chapt 22 sec. 1-3 p. 434-452
Define the following terms
Biosphere
Smog
Keystone
species
Ecoterrorism
Questions
Ozone layer
Greenhouse
effect
Chloroflourocarbons Biological
magnification
Sustainability
Conservation
biology
1. How does the greenhouse effect occur?
2. Explain how CFCs affect the ozone layer.
3. Describe biological magnification.
Biodiversity
Pollution
Acid
Extinction
precipitation
Restoration Bioindicator
biology
4. Identify primary reasons for modern species extinction.
5. What is an ecological footprint?
6. What is the importance of a bioindicator species?
7. What is the importance of a keystone species?
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CLE 3210.2.4
Describe the sequence of events associated with biological
succession.
SPI 3210.2.7 Analyze factors responsible for the changes associated with
biological succession.
Textbook pages: Chapter 20 p 408-409
Define the following terms
Ecological
Primary
Secondary
Pioneer species Climax
succession
succession
succession
community
Questions
1. Differentiate between primary and secondary succession. List situations that
might cause each to occur.
2. What types of organisms are the typical pioneer species in primary
succession? Secondary?