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Transcript
Chapter 11 Reading Questions: 1. Explain what happened to passenger pigeons. 23. Why are island species especially vulnerable. 2. Describe three types of extinction. 24. What is HIPPO? 3. Explain difference between an endangered species and a threatened species. 25. Why is habitat fragmentation a cause of species extinction? 4. What characteristics make organisms vulnerable to extinction? 26. What are the key issues related to the loss of bird species? 5. What make organisms vulnerable to extinction? 27. What is the #1 killer of birds? 6. How many organisms in the U.S are vulnerable? 28. What are the key ecological roles that birds play in their ecosystems? 7. What are three problems with cataloging extinction? 29. How did the loss of a bird species in India cause the death of many humans? 8. What is the IUCN & Red List? 30. How are introduced species beneficial? 9. What is wrong with the Red List? 31. How much do introduced species cost the U.S.? 10. How do scientists predict future extinction rates? 11. How have extinction rates changed because of humans? 12. Why is an extinction rate of 0.1 to 1 % conservative? 32. Do the advantages of kudzu in reducing erosion and perhaps as a source of tree-free paper outweigh its disadvantages? 33. How do introduced species cause the extinction of wildlife? 34. How are organisms introduced accidentally? 13. Why is a loss of biodiversity an issue? 14. Why are bats prone to extinction? 15. What important roles do bats play? 16. How long does it take to recover from mass extinction? 17. How do we benefit from a diverse # of species? 18. What are the disadvantages of ecotourism? What are some solutions to these disadvantages? 19. Explain the concepts of biophilia and biophobia. 20. What is the greatest threat to wildlife? 21. Which activity is the greatest eliminator? 22. What other activities eliminate species? 35. What happened to fire ants when we tried to limit their spread with pesticides? 36. How can we prevent the introduction of nonnative species END of ASSIGNMENT 1! 37. How are pesticides threatening extinction of some species? 49. What improvements could be made to the ESA? 38. Describe the story of DDT use in U.S. 50. Describe the potential ecosystem protection act. 39. What % of terrestrial species are threatened by global warming? 51. What 4 reasons describe the ESA as being successful? 40. Why do people smuggle animals illegally? 52. Why was the first wildlife refuge established? 41. Why are most bird species endangered? 53. What is causing the degradation of wildlife refugees (describe all of them) 42. List several species who’s populations are depleted because of the pet trade. 54. What is the purpose of gene banks, botanical gardens and wildlife farms? 43. How are most tropical fish caught? 44. Explain the effect of bushmeat on wildlife populations. 45. Describe CITES, CBD & ESA & explain how each is limited. 55. How can zoos & aquariums help endangered wildlife? 56. What is the ultimate goal of captive breeding programs? 57. How are zoos and aquariums limited? 46. Describe two methods to encourage private landowners to protect endangered wildlife. 58. What is reconciliation ecology? 47. Why do people appose the ESA? 59. How can we implement reconciliation ecology? 48. How has the ESA been limited? 60. What can you do to protect species?