• Front Matter R1-R14

• The Current State of Biological Diversity 1-18

• Part 1: Challenges to the Preservation of Biodiversity 19-76

• Part 2: Human Dependence on Biological Diversity 77-116

• Part 3: Diversity at Risk: Tropical Forests 117-154

• Part 4: Diversity at Risk: The Global Perspective 155-190

• Part 5: The Value of Biodiversity 191-224

• Part 6: How is Biodiversity Monitored and Protected? 225-260

• Part 7: Science and Technology: How Can They Help? 261-308

• Part 8: Restoration Ecology: Can We Recover Lost Ground? 309-352

• Part 9: Alternatives to Destruction 353-390

• Part 10: Policies to Protect Diversity 391-418

• Part 11: Present Problems and Future Prospects 419-462

• Part 12: Ways of Seeing the Biosphere 463-490

• Part 13: Epilogue 491-496

• Index 497-521

Wilson, E.O. " Part 4: Diversity at Risk: The Global Perspective ." Biodiversity . Washington, DC: The National Academies Press, 1988 .

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