oceanic islands

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  • oceanic islands
    • ecological features
      • the biodiversity may be low because they are difficult to colonise due to the isolation of the islands
      • lack of mammal predators as it is difficult for mammals to colonise isolated islands
    • importance
      • the high proportion of endemic species increases the possibility of the discovery of unique medicines that could be used in biomimetics
    • threats
      • exploitation of species-usually for food
      • introduced species-introduced plnts may have colonised and out completed the indigenous vegetation
    • conservation efforts
      • introduced species-eg rats and goats-this has worked for nearly 1000 islands
      • flatey (Iceland)-rats and house mouse have been introduced


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