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Community Structure: Appearance and Species Diversity

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Presentation on theme: "Community Structure: Appearance and Species Diversity"— Presentation transcript:

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

2 Community Structure: Appearance and Species Diversity
Stratification Fig. 8-2 p. 166 Species diversity Species richness Niche structure Edge effects

3 Biodiversity Latitude Depth Pollution Theory of island biogeography
Fig. 8-3 p. 167 Ants Birds Depth Pollution Theory of island biogeography

4 General Types of Species
Native Non-native (exotic or alien) Indicator Keystone

5 Species Interactions: Competition
Intraspecific competition Interspecific competition Interference competition Exploitation competition Competitive exclusion principle Resource partitioning

6 Resource Partitioning
Fig. 8-9 p. 175; Refer to Fig p. 152 & Fig p. 175

7 Species Interactions: Predation
Predator Prey Prey acquisition Predator Avoidance Refer to Fig p. 177

8 Symbiotic Species Interactions: Parasitism
Parasite Host Endoparasites Ectoparasites

9 Symbiotic Species Interactions: Mutualism
Reproductive mutualism: pollination Nutritional mutualism Nutritional/protection mutualism Fig p. 179

10 Symbiotic Species Interactions: Commensalism
Indirect: i.e., small plants growing in shade of larger plants Direct: i.e., epiphytes, remoras Fig p. 180

11 Ecological Succession: Communities in Transition
Primary succession Secondary succession Pioneer species Successional species

12 Primary Succession Fig p. 180

13 Secondary Succession Fig p. 181

14 Succession and Wildlife
Fig p. 182

15 Ecological Stability and Sustainability
Disturbance Climax community Inertia Refer to Table 8-2 p. 193 Constancy Resilience Precautionary principle


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