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Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
Introduction to Biodiversity
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Introduction to Biodiversity

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Unit 3 VCE Environmental Science; Area of Study 2: Biodiversity looks at the benefits of biodiversity, the threats and conservation of the different levels - genetic, species and ecosystem.

Unit 3 VCE Environmental Science; Area of Study 2: Biodiversity looks at the benefits of biodiversity, the threats and conservation of the different levels - genetic, species and ecosystem.

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  • 1. Unit 3 Environmental Science
    Area of Study 2: Biodiversity
    Britt Gow, 2011
  • 2. Definition:
    Biodiversity (biological diversity) is the total sum of all the living organisms that exist on our earth.
    This living wealth is the product of hundreds of millions of years of evolutionary history.
    “The variability among living organisms from all sources including terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are a part; this includes diversity within species, between species and of ecosystems” International Convention on Biological Diversity.
  • 3. Three Levels:
    Genetic Diversity – genes on chromosomes determine the specific characteristics (physical, emotional) of individual organisms.
    Species Diversity – variety of different types (species) of organisms
    Ecosystem Diversity – variety of different ecosystems from marineto desert to tropical rainforest to temperate Eucalypt forest to wetlands etc.
  • 4. Australian Biodiversity
    Australia has an incredibly diverse range of life due to it’s isolation from other continents.
    Australia is recognised as one of the most mega-diverse countries on the planet, with many endemic species, such as our iconic marsupials and monotremes, banksias, eucalypts and grevilleas.
  • 5.
  • 6.
  • 7. Why Conserve Biodiversity?
    Ecosystem services
    Biological resources
    Social benefits
  • 8.
  • 9. Conservation of Biodiversity
    Genetic – variety of breeding pairs in captive programs, different groups in separate locations
    Population – conserving a particular population within a precise geographic area
    Species – preserving different species of organisms (management plans)
    Ecosystem – National parks and conservation reserves
  • 10. Assessment of Biodiversity
    Species richness (no. of different species)
    Species diversity (abundance of each different species)
    Simpson’s Index
    Shannon-Weiner Diversity Index
  • 11. Threats to Biodiversity
    Climate Change
    Habitat destruction
    Introduced animals
    Pollution
    Pest plants
    Over-harvesting
  • 12.
  • 13. Conservation Categories
    Extinct
    Extinct in the wild
    Critically endangered
    Endangered
    Vulnerable
    Conservation dependent
    Data deficient
    Low risk
    Not evaluated
  • 14. Strategies for protecting Biodiversity
    Action plans
    Captive breeding programs
    Conservation reserves
    Revegetation and habitat restoration
    Feral species control
    Ecotourism
    Education
  • 15. Project Eden: Shark Bay, WA
  • 16.
  • 17.
  • 18. Keeping Feral Species Out

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