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Understanding Community Ecology: Structure, Interactions, and Sustainability

Explore the intricate web of community ecology, delving into species interactions, ecological succession, and sustainability. Learn about community structure, roles of species, and changes in ecosystems for a deeper understanding of our natural world's dynamics.

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Understanding Community Ecology: Structure, Interactions, and Sustainability

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  1. Community Ecology: Structure, Species Interactions, Succession, and Sustainability G. Tyler Miller’s Living in the Environment 13th Edition Chapter 8 Dr. Richard Clements Chattanooga State Technical Community College

  2. Key Concepts • Community structure • Roles of species • Species interactions • Changes in ecosystems • Stability of ecosystems

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

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

  5. General Types of Species • Native • Non-native (exotic or alien) • Indicator • Keystone

  6. Species Interactions: Competition • Intraspecific competition • Interspecific competition • Interference competition • Exploitation competition • Competitive exclusion principle • Resource partitioning

  7. Resource Partitioning Fig. 8-9 p. 175; Refer to Fig. 7-13 p. 152 & Fig. 8-10 p. 175

  8. Species Interactions: Predation • Predator • Prey • Prey acquisition • Predator Avoidance Refer to Fig. 8-11 p. 177

  9. Symbiotic Species Interactions: Parasitism • Parasite • Host • Endoparasites • Ectoparasites

  10. Symbiotic Species Interactions: Mutualism • Reproductive mutualism: pollination • Nutritional mutualism • Nutritional/protection mutualism Fig. 8-12 p. 179

  11. 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

  12. Ecological Succession: Communities in Transition • Primary succession • Secondary succession • Pioneer species • Successional species

  13. Primary Succession Fig. 8-14 p. 180

  14. Secondary Succession Fig. 8-15 p. 181

  15. Succession and Wildlife Fig. 8-16 p. 182

  16. The Rate of Succession • Facilitation • Inhibition • Tolerance Refer to Table 8-1 p. 182

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

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