Welcome! Please read the board! Monarchs! Are these worth protecting? Why should we protect biodiversity? (all the species on the planet) 5 Reasons to protect biodiversity • • • • • 1. Medicinal 2. Commercial 3. Agricultural 4. Ecological 5. Ethical/Aesthetic 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 Vampire Bat saliva • Used to create an anticoagulant to prevent clotting during surgery Pacific Yew – Taxol cancer medicine Reason #2: Commercial – We should protect species because we can make money from them. Harvesting: Shrimp industry Harvesting: Recreational hunting Commercial: Ecotourism – spending money to visit an ecosystem or a species Visiting Nature Preserves Whale Watching Ecotourism Austin’s bat colony Snorkling Ecotourism Mountain biking Whitewater Rafting Biomimicry - engineering designs based on natural systems Biomimicry – engineering designs based on natural systems Whale fins – better wind turbines Underwater plants – floating energy harvesters 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? Relying too heavily on one variety of a species can be risky 1841-1851 • http://ngm.nationalgeographic.com/2011/07/foodark/potato-variety Maybe these could be new food sources Winged Bean of New Guinea Katemfe berry Agricultural – We should protect species because they might be pollinating our food. 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! Ecological • Ecosystem services! • Air purification • Water filtration • Climate control (absorbing CO2) • Gene bank • Soil building 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! “Endangered means there’s still time!” • Threatened • Endangered • Extinct Which reasons apply to our friend the Monarch?
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