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Understanding Population Dynamics and Conservation Biology: Human Impact on Ecosystems

Explore the intricate relationship between population dynamics, carrying capacity, and conservation biology. Learn about factors influencing population size, reproductive and survivorship patterns, and the impacts of human activities on ecosystems. Gain insights into zero population growth, biotic potential, environmental resistance, and carrying capacity. Discover the importance of maintaining minimum viable populations and the role of predation in population control. Delve into conservation biology strategies, endangered species management, ecosystem sustainability, and the consequences of human actions on biodiversity. Gain valuable lessons from nature on interdependence, resilience, and diversity.

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Understanding Population Dynamics and Conservation Biology: Human Impact on Ecosystems

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  1. Population Dynamics, Carrying Capacity, and Conservation Biology G. Tyler Miller’s Living in the Environment 13th Edition Chapter 9 Dr. Richard Clements Chattanooga State Technical Community College

  2. Key Concepts • Factors affecting population size • Species reproductive patterns • Species survivorship patterns • Conservation biology and human impacts on ecosystems

  3. Population Dynamics and Carrying Capacity • Population dynamics • Zero population growth (ZPG) • Biotic potential (intrinsic rat of increase [r]) • Environmental resistance • Carrying capacity • Minimum viable population (MVP)

  4. Population Dispersion Fig. 9-2 p. 191

  5. Factors Affecting Population Size Fig. 9-3 p. 192

  6. Exponential and Logistic Growth Fig. 9-4 p. 192 Fig. 9-6 p. 193 Fig. 9-5 p. 193

  7. Population Density Effects • Density-independent controls • Density-dependent controls

  8. Natural Population Curves Fig. 9-7 p. 194

  9. The Role of Predation in Controlling Population Size • Predator-prey cycles • Top-down control • Bottom-up control Fig. 9-8 p. 195

  10. Reproductive Patterns and Survival Fig. 9-10p. 196 • r-selected species • Asexual reproduction • K-selected species • Sexual reproduction

  11. Survivorship Curves Fig. 9-11 p. 198

  12. Conservation Biology: Sustaining Wildlife Populations • Investigate human impacts on biodiversity • Ideas for maintaining biodiversity • Endangered species management • Wildlife reserves and ecological restoration • Ecological economics • Environmental ethics • Wildlife management

  13. Human Impacts on Ecosystems • Habitat degradation and fragmentation • Ecosystem simplification • Genetic resistance • Predator elimination • Introduction of non-native species • Overharvesting renewable resources • Interference with ecological systems

  14. Learning from Nature • Interdependence • Diversity • Resilience See Connections p. 200 • Adaptability • Unpredictability • Limits

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