Biodiversity summary

Brief notes on Biodiversity for Geography 3

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  • Biodiversity
    • Hotspots
      • Continental Hotspots
        • These are the richest in terms of biodiversity. E.g. Cape Floral in South Africa
      • Large Island Hotspots
        • These harbor diverse and distinctive species, which can include relict fauna that has long been extinct from the continents.
      • Small Island Hotspots
        • These are often low in species numbers but contain a high proportion of endemics. Species on these islands are susceptible to extinction due to small populations, physical disturbances, human exploitation and the introduction of alien species.
      • Marine Hotspots have just recently been identified.
    • Results from natural processes and so varies across the world. It is a key resource providing valuable goods and services to people. It is increasingly recognised that human and ecological well being are interlinked. Biodiversity and biological resources therefore need to be carefully managed.
      • Over 50% of the world's flora species and 42% of all terrestrial vertebrate species are endemic to the 34 biodiversity hotspots.
    • Species Diversity
    • Genetic Diversity
    • Ecosystem Diversity


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