Community Ecology: Structure, Species Interactions, Succession, and Sustainability

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Community Ecology Structure, Species
Interactions, Succession, and Sustainability
Chapter 8 Mrs Gullickson Science
Dr. Richard Clements Chattanooga State Technical
Community College
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Community Structure Appearance and Species
Diversity

• Stratification

Fig. 8-2p. 166

• Species diversity

• Species richness

• Niche structure

• Edge effects

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Biodiversity

• Latitude

• Depth

• Pollution

• Theory of island biogeography

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General Types of Species

• Native

• Non-native (exotic or alien)

• Indicator

• Keystone

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Species Interactions Competition

• Intraspecific competition

• Interspecific competition

• Interference competition

• Exploitation competition

• Competitive exclusion principle

• Resource partitioning

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Resource Partitioning
Fig. 8-9 p. 175 Refer to Fig. 7-13 p. 152 Fig.
8-10 p. 175
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Species Interactions Predation

• Predator

• Prey

• Prey acquisition

• Predator Avoidance

Refer to Fig. 8-11 p. 177
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Symbiotic Species Interactions Parasitism

• Parasite

• Host

• Endoparasites

• Ectoparasites

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Symbiotic Species Interactions Mutualism

• Reproductive mutualism pollination

• Nutritional mutualism

• Nutritional/protection mutualism

Fig. 8-12 p. 179
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Symbiotic Species Interactions Commensalism

• Indirect i.e., small plants growing in shade of
  larger plants

• Direct i.e., epiphytes, remoras

Fig. 8-13 p. 180
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Ecological Succession Communities in Transition

• Primary succession

• Secondary succession

• Pioneer species

• Successional species

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Primary Succession
Fig. 8-14 p. 180
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Secondary Succession
Fig. 8-15 p. 181
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Succession and Wildlife
Fig. 8-16 p. 182
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Ecological Stability and Sustainability

• Disturbance

• Climax community

• Inertia

Refer to Table 8-2 p. 193

• Constancy

• Resilience

• Precautionary principle