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10 Cards in this Set
- Front
- Back
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Biological Diversity |
the variabilityamong living organisms from all sourcesincluding terrestrial, marine and other aquaticecosystems and the ecological complexes ofwhich they are a part; this includes diversitywithin species, between species and ofecosystems (UNCED, 1992) |
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Three levels of biodiversity |
genetic- populations and genes organismal- phyla, families, genera, species ecological- biomes, ecosystems, habitats |
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Threats to biodiversity |
1. Exploitation 2. Habitat degradation 3. habitat loss 4. climate change 5. invasive species 6. pollution 7. disease |
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What are rhino horns illegally traded for? |
use as a hangover cure and thoughtto treat terminal illness in Vietnam |
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Utilitarian Reasons to save biodiversity |
1. Food 2. Medicines 3. biological control 4. materials 5. recreation 6. ecotourism |
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Indirect use values |
• Atmosphericregulation• Hydrologicalregulation• Pest control• Pollination• Climateregulation• Coastalprotection• Nutrient cycling• Soil formation |
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Why are some organisms "estimated" to be extinct? |
Some organisms, like the edwardsia ivelli, are believed to be extinct because no one has seen them in a long time. They don't have proof they don't exist, or proof that they do |
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How does biodiversity help flood management in the UK? |
sustainable drainage systems are cheap, natural alternatives to directing water runoff from buildings, car parks, and sewers |
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Coastal protection |
coastal salt marshes act as a land defense freom harsh waves, but with rising sea levels (due to climate change), these are threatened. These can form in multiple ways, such as the hesketh outmarsh in Southport, or the mangroves in Asia that act against tsunamis. |
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Philosophical Values to protect biodiversity |
1. bequeathment for future generations 2. moral responsibility to protect, everything has a right to life 3. cultural values- symbolic values of lions for example |
