Biogeography and the Geography of Extinctions

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The road to extinction. Vulnerable ? Endangered ? Critically ? ? ?. . The road to extinction. Vulnerable ? Endangered ? Critically ? ? ?. Fig. 16.1 A,B. . The road to extinction. Vulnerable ? Endangered ? Critically ? ? ?. . threatened freshwater fish. Fig. 16.1 C. The road to ex

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Biogeography and the Geography of Extinctions

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1. Biogeography and the Geography of Extinctions Chapter 16

2. The road to extinction Vulnerable ? Endangered ? Critically ? ? ?

3. The road to extinction Vulnerable ? Endangered ? Critically ? ? ?

4. The road to extinction Vulnerable ? Endangered ? Critically ? ? ?

5. The road to extinction Vulnerable ? Endangered ? Critically ? ? ?

6. The Linnaean shortfall number species ? vs. number species ?

7. The Linnaean shortfall number species vs. taxonomists

8. Centinelan extinctions species that go ? before being ?

9. Human dominance and exploitation of Earth’s life support systems challenges to Earth’s biodiversity

10. Can we use biogeography to recognize areas that are particularly important for sustaining Biodiversity?

11. Geographic variation in Biodiversity some important general patterns: ? in species diversity towards ?

12. Geographic variation in Biodiversity some important general patterns: Island effect (any isolated system): * Diversity ? with area * Diversity ? with isolation

13. Geographic variation in Biodiversity some important general patterns: 3. Endemicity higher in ? and more ? regions

14. Biodiversity Hotspots two perspectives: 1. geographic co-occurrence of many ?

15. Biodiversity Hotspots two perspectives: 2. region with many local ?* * restricted area species

16. Is the Distribution of Biodiversity Hotspots Predictable? 1. endemic bird areas parallel the ? gradient

17. Is the Distribution of Biodiversity Hotspots Predictable? 2. endemic bird areas common on ?

18. Do Biodiversity Hotspots overlap in different taxa? If they do, then protecting a region will protect many restricted-area species

19. Do Biodiversity Hotspots overlap in different taxa? Central American birds, herps, and butterflies

20. Do Biodiversity Hotspots overlap in different taxa? African birds, amphibians, mammals, plants

21. fish

22. lobsters

23. The Geography of Extinctions

24. The Geography of Extinctions

25. The Geography of Extinctions

26. The Geography of Extinctions

27. Historical Extinctions vs. Current Threats Hunting, collecting, etc. Habitat destruction Introduced species Other causes

28. Historical Extinctions vs. Current Threats Birds

29. Mammals Historical Extinctions vs. Current Threats

30. Mollusks Historical Extinctions vs. Current Threats

31. Animals Historical Extinctions vs. Current Threats

32. The Geography of Introduced Species native vs. introduced plants

33. The Geography of Introduced Species native vs. introduced plants

34. Hawaiian endemic vs. introduced

35. New Zealand native vs. introduced

36. Introduced species: Do they matter? effect of introduced ? on island ?

37. Introduced species: Do they matter? effect of introduced ? on island ?

38. Habitat loss and Habitat fragmentation Continuous and larger habitats Isolated and smaller habitats

39. Habitat loss and Habitat fragmentation how much has been lost and fragmented? continental scale United States

41. Habitat loss and Habitat fragmentation

42. Habitat loss and Habitat fragmentation predicted changes: Stage 1. Initial ? of species restricted-range species most vulnerable

43. Habitat loss and Habitat fragmentation predicted changes: Stage 2. Extirpation from ? big species go first

44. Habitat loss and Habitat fragmentation predicted changes: Stage 3. Perils with ? genetic ? ? demographic ? ?

45. Habitat loss and Habitat fragmentation predicted changes: Stage 4. Isolation local ? without colonization

46. Biogeography of Global Climate Change greenhouse gasses and average global temperature

47. Biogeography of Global Climate Change Range shifting

48. Biogeography of Global Climate Change Extinction

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