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  • 1. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems • What is biodiversity ? •What is biodiversity ? •Why is biodiversity important? •Where is biodiversity greatest ?
  • 2. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Three types of biodiversity
  • 3. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Three types of biodiversity •Species diversity
  • 4. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Three types of biodiversity •Species diversity •Genetic diversity
  • 5. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Three types of biodiversity •Species diversity •Genetic diversity •Ecosystem (habitat) diversity
  • 6. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Species Diversity:
  • 7. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Species Diversity: The variety of species per unit area. This includes both the number of species present and their relative abundance.
  • 8. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Species Diversity:
  • 9. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Species Diversity:
  • 10. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity:
  • 11. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity: The range of genetic material present in a gene pool or population of a species. Domestication and plant breeding lead to a loss of genetic variety, hence the importance of “gene banks”
  • 12. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity:
  • 13. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity:
  • 14. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity:
  • 15. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity:
  • 16. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity: Problems facing cheetahs:
  • 17. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity: Problems facing cheetahs: • Habitat loss and human encroachment
  • 18. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity: Problems facing cheetahs: • Habitat loss and human encroachment • Competition with other predators and predation by lions and hyenas in protected areas
  • 19. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity: Problems facing cheetahs: • Habitat loss and human encroachment • Competition with other predators and predation by lions and hyenas in protected areas • Continued trapping and killing of cheetahs on farmlands
  • 20. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity: Problems facing cheetahs: • Habitat loss and human encroachment • Competition with other predators and predation by lions and hyenas in protected areas • Continued trapping and killing of cheetahs on farmlands • Low genetic variation
  • 21. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity: Problems facing cheetahs: • Habitat loss and human encroachment • Competition with other predators and predation by lions and hyenas in protected areas • Continued trapping and killing of cheetahs on farmlands • Low genetic variation • Abnormal reproductive traits
  • 22. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity: Problems facing cheetahs: • Habitat loss and human encroachment • Competition with other predators and predation by lions and hyenas in protected areas • Continued trapping and killing of cheetahs on farmlands • Low genetic variation • Abnormal reproductive traits • Increased disease susceptibility
  • 23. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity: Problems facing cheetahs: • Habitat loss and human encroachment • Competition with other predators and predation by lions and hyenas in protected areas • Continued trapping and killing of cheetahs on farmlands • Low genetic variation • Abnormal reproductive traits • Increased disease susceptibility • Poor reproductive performance in captivity
  • 24. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity:
  • 25. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity:
  • 26. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity:
  • 27. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Genetic Diversity: Domestication and plant breeding lead to a loss of genetic variety.
  • 28. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Habitat Diversity
  • 29. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Habitat Diversity The range of different habitats in an ecosystem, community or biome associated with the variety of niches that may be exploited by different species. Conservation of habitat diversity usually leads to the conservation of species and genetic diversity.
  • 30. Topic 4: Conservation and biodiversity 4.1 Biodiversity in ecosystems Habitat Diversity