Lecture8EcosystemServices

Lecture8EcosystemServices - Exam grades 50-60 4 61-70 6...

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Unformatted text preview: Exam grades 50-60 4 61-70 6 71-80 14 81-90 15 91-100 4 the processes and conditions provided by ecosystems that are beneficial to humans and other organisms Ecosystem Services the processes and conditions provided by ecosystems that are beneficial to humans and other organisms Natures capital Stock of materials or information: • trees, minerals, ecosystems, atmosphere • species and ecosystem information 1. maintain biodiversity 2. pollinate crops 3. purify air and water 4. provide UV protection 5. detoxify and decompose waste 6. moderate extreme weather 7. control agricultural pests 8. protect stream, rivers, and coasts from erosion 9. generate and preserve soil fertility 10. maintain recreational areas 11. raw materials (food, fiber, fuel) Ecosystem Services provide processes that: Ecosystem Services Biodiversity 80% of people rely on natural medicinal products Top 150 prescription drugs in the US: 118 from natural sources 74% from plants 18% from fungi 5% from bacteria 3% from vertebrates Rosy Periwinkle Used to treat lymphoma & leukemia Biodiversity Ecosystem Services Pollination Over 100,000 animal species freely pollinate plants bats, bees, flies, moths, beetles, birds,butterflies What would be the cost to perform this service ourselves? = EVALUATION One third of human food comes from plants pollinated by wild pollinators Ecosystem Services...
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Lecture8EcosystemServices - Exam grades 50-60 4 61-70 6...

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