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NOTE FRAMES

NOTE FRAMES. An alternative method for taking notes. Handout has most of the information on it but is missing key phrases and/or terms. You must pay attention in order to fill in the blanks. TRY IT!!!. BIODIVERSITY and SUSTAINABILITY. Outline. What is biodiversity?

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NOTE FRAMES

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  1. NOTE FRAMES • An alternative method for taking notes. • Handout has most of the information on it but is missing key phrases and/or terms. • You must pay attention in order to fill in the blanks. • TRY IT!!!

  2. BIODIVERSITYandSUSTAINABILITY

  3. Outline • What is biodiversity? • What is sustainability? • How does biodiversity contribute to sustainability?

  4. Biodiversity • The term “biodiversity” is a contraction of the phrase “biological diversity”. • Biodiversity means the richness and variety of life - of genes, species and ecosystems.

  5. Biodiversity • Biodiversity maintains the health of the earth and its people. • It provides us with food and medicine and contributes to our economy. • It tells us a lot about the health of the biosphere. • The greater the variety of species, the healthier the biosphere.

  6. The more links in a food web, the more stable it is.

  7. Sustainability • The ability to maintain ecological processes over long periods of time. • Sustainability of an ecosystem is the ability of that ecosystem to maintain its structure and function over time in the face of external stress.

  8. Sustainability • Is strongly linked to ecosystem health. • The more sustainable an ecosystem is, the healthier it is because it is able to “deal” with external stress better (i.e. limiting factors).

  9. Biodiversity and Sustainability • The biodiversity of an ecosystem contributes to the sustainability of that ecosystem. • Higher/more biodiversity = more sustainable • Lower/less biodiversity = less sustainable • High biodiversity in an ecosystem means that there is a great variety of genes and species in that ecosystem.

  10. Biodiversity and Sustainability • A great variety of genes and species means that the ecosystem is better able to carry out natural processes in the face of external stress. • Thus, the ecosystem is more sustainable.

  11. Biodiversity and Sustainability • The more sustainable an ecosystem is, the better it is for the environment and for people. • People use ecosystems as sources of food, medicine and economy. • Thus, it is in everyone’s best interest to increase the sustainability of ecosystems. • How can we do this?

  12. For Example... • The greater the variety of genes and species of fish, plants and animals in the Lake Winnipeg ecosystem, the more biodiversity. • Higher biodiversity will increase the ecosystem’s sustainability • Why is this important? Walleye Whitefish Northern pike

  13. Lake Winnipeg • We rely on Lake Winnipeg’s ecosystem for many things: • fish for food and commercial use (revenue). • land and plants for food and revenue (agriculture). • nutrients from biogeochemical cycles. • water and landscape for tourism (beaches, etc.).

  14. THE ENDp.s. there is a test next class

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