Conservation Abroad

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  • Created by: Aishah.a
  • Created on: 22-12-12 10:33
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  • Conservation Abroad
    • Tropical rainforest
      • Ecological features
        • Large seasonal changes = biological productivity
        • specialized BIOTIC, un specialized ABIOTIC
        • inter-relations
        • high levels of light = dense vegetation
      • importance
        • resources
        • biodiversity
        • economics
        • carbon sequestration - storing of carbon in wood, removal by photosynthesis
      • threats
        • indirect threats
        • Deforestationfor other land uses
        • slash and burn farming
        • unsustainable exploitation of resources
        • commercial farming = unsustainable
      • Conservation
        • Protected areas- species
        • Dept- for- nature fund - MEDC lends money
        • trade controls - cannot be banned by controlled
    • Coral Reef
      • Ecological features
        • Coral nutrition- cilla trap plankton, kill, waft into gut
        • Abiotic conditions - stable temp, bright sunlight, low turbidity, constant salinity
      • Importance
        • 1/4 of all marine species
        • medicine development
        • caco3-  carbon sequestration locks C away , combats climate change
        • Ecotourism
      • Threats
        • climate change - small range of tolerance
        • Sediments settling on reefs kill polyps
        • Pollution - killed by oils/ pesticides, eutrophication
        • Physical damage - exceeds the polyps regeneration rate
        • Fishing- decreased fish= decreased predators
    • Antarctica
      • Ecological features
        • Large
        • 98% covered by up to 4.5 km of ice
        • Average temp -49 C
        • Low diversity due to cold and light
        • Up welling of nutrient rich water= rich algal bloom= large food web
      • Importance
        • Albedo effect red heating by solar radiation
        • Ice sheet regulate sea levels: - sea level +75m
        • Shrimp faeces = carbon rich = carbon sink
      • Threats
        • Over fishing-  affect food chain
        • tourism - transport = waste, pollution
        • mineral extraction- waste extreme env degradtion
        • O3 depletion- inc UV- harm orgs affect food web
        • scientific research- waste, fuel spils
        • global warming - in melt= increased glacial movement
      • Conservation - Antarctic treaty
        • Used for peaceful purposes (no military)
        • Scientific research must be unhindered with free exchange of info
        • Banned: nuclear explosions, radioactive waste, commercial exploitation of minerals
        • conservation of marine life  & env impacts  of tourism - monitered
  • Coral nutrition- cilla trap plankton, kill, waft into gut

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