Welcome! Please read the board!. Monarchs! Are these worth protecting?
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Transcript of Welcome! Please read the board!. Monarchs! Are these worth protecting?
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Welcome!Please read the board!
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Monarchs!
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Are these worth protecting?
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Why should we protect biodiversity? (all the species on the planet)
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5 Reasons to protect biodiversity
• 1. Medicinal• 2. Commercial• 3. Agricultural• 4. Ecological• 5. Ethical/Aesthetic
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Reason #1:Medicinal
Rosy Periwinkle: Hodgkin’s disease and lymphocytic leukemia
If a species disappears, it could
have been an important cure for a
serious disease!
• 40% of modern medicines come from plants/animals/fungi
• 95% of known plant species have never been tested for medicinal value
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Vampire Bat saliva • Used to create an
anticoagulant to prevent clotting during surgery
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Pacific Yew – Taxol cancer medicine
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Reason #2: Commercial – We should protect species because we can make money from them.
Harvesting: Shrimp industry Harvesting: Recreational hunting
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Commercial: Ecotourism – spending money to visit an ecosystem or a species
Visiting Nature Preserves Whale Watching
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Ecotourism
Austin’s bat colony Snorkling
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Ecotourism
Mountain biking Whitewater Rafting
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Biomimicry - engineering designs based on natural systems
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Biomimicry – engineering designs based on natural systems
Whale fins – better wind turbinesUnderwater plants – floating
energy harvesters
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Reason #3: Agricultural – we should protect species because they could strengthen our crops
• Of 80,000 known edible plants on the planet, we depend on 20 species to provide 90% of global food supply.• Corn, rice and wheat are
50% alone!• So . . . What if a disease
strikes one of these important crops?
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Relying too heavily on one variety of a species can be risky
1841-1851
• http://ngm.nationalgeographic.com/2011/07/food-ark/potato-variety
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Maybe these could be new food sources
Winged Bean of New Guinea Katemfe berry
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Agricultural – We should protect species
because they might be pollinating our food.
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Reason #4: Ecological – We should protect species because they all play a role in their ecosystem.
Food webs
• Food webs• Symbiotic relationships• Indicator species• US Fish and Wildlife
Service estimates that losing one plant can trigger the loss of 30 other species
Simba says it’s all connected!
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Ecological• Ecosystem services!• Air purification• Water filtration• Climate control
(absorbing CO2)• Gene bank• Soil building
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Reason #5: Aesthetics/Recreation/Spiritual/Moral – We should protect species because it’s the right thing to do and a diverse world is more interesting!
We are ONE species
• 1.5 million KNOWN species• More are discovered
every year
Biodiversity enriches our lives!
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“Endangered means there’s still time!”
• Threatened• Endangered• Extinct
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Which reasons apply to our friend the Monarch?