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Published byFay West Modified over 9 years ago
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Biodiversity: Who cares?
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AB Which do you like better?
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AB
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What do you think biodiversity means?
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Bio = Bio diversity What does “ Bio ” mean?
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Diversity = Variety What does “ Diversity ” mean?
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Biodiversity is the variety of life on Earth and the essential interdependence of all living things Scientists have identified more than 2 million species. Tens of millions -- remain unknown The tremendous variety of life on Earth is made possible by complex interactions among all living things including microscopic species like algae and mites.
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There are 3 components of biodiversity 1. Diversity of genes Chihuahuas, beagles, and rottweilers are all dogs—but they're not the same because their genes are different. Chihuahua Beagle Rottweilers
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Diversity of species For example, monkeys, dragonflies, and meadow beauties are all different species. Saki Monkey Golden SkimmerMeadow Beauty There are 3 components of biodiversity
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Variety of ecosystems Prairies, Ponds, and tropical rain forests are all ecosystems. Each one is different, with its own set of species living in it. Paines Prairie Hoh Rain Forest Florida Sand hill Pond There are 3 components of biodiversity
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Which has more biodiversity? AB
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AB
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Biodiversity has Intrinsic Value Intrinsic Value = Something that has value in and of itself
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Why Biodiversity is Important Protects the Atmosphere Protects the Atmosphere Greenhouse effect and amounts of O2 and CO2 in the atmosphere are regulated by the diversity of plant life. Greenhouse effect and amounts of O2 and CO2 in the atmosphere are regulated by the diversity of plant life. Agricultural Production Agricultural Production Need the many different species of insects and birds to pollinate crops. Need the many different species of insects and birds to pollinate crops.
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Why Biodiversity is Important Stable Ecosystems Stable Ecosystems Life processes on earth are intricately connected; damage to one could mean damage to another. Some species are codependent on each other. Life processes on earth are intricately connected; damage to one could mean damage to another. Some species are codependent on each other. Ex. 20 different species of fig trees in Panama have a different wasp to pollinate each one. Ex. 20 different species of fig trees in Panama have a different wasp to pollinate each one.
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What do we get from biodiversity? OxygenFood Clean Water MedicineAestheticsIdeas
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Should we be concerned about biodiversity? What we know: The Earth is losing species at an alarming rate Some scientists estimate that as many as 3 species per hour are going extinct and 20,000 extinctions occur each year. Some scientists estimate that as many as 3 species per hour are going extinct and 20,000 extinctions occur each year. when species of plants and animals go extinct, many other species are affected. when species of plants and animals go extinct, many other species are affected.
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How Biodiversity is Lost Destruction of Ecosystems Destruction of Ecosystems Deforestation Deforestation -loss in living space and culture for certain aboriginal groups -increase global warming -flooding, landslides, soil erosion, wildfires Desertification Desertification over-cultivation, overgrazing, deforestation, and inappropriate irrigation techniques
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How Biodiversity is Lost Introduction of New Species Introduction of New Species Ex. 1960’s elm trees rapidly died in North America as a result of a fungus disease that was brought here by beetles on a load of European lumber. Ex. 1960’s elm trees rapidly died in North America as a result of a fungus disease that was brought here by beetles on a load of European lumber.
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Other Threats to Biodiversity Habitat destruction Pollution Species Introductions Global Climate Change Exploitation
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