Biogeographic Patterns and Conservation in the South American Cerrado: A Tropical Savanna Hotspot

摘要: )ofthe land surface in SouthAmerica,Africa,and Asia.Most people know these savannasbecause oftheir unique assemblages ofabundant and exquisitewildlife;however,they have only recently begun to receive thekind ofattention from a conservation viewpoint that hasbeen given tropical rain forests (Myers et al.2000).Thelargest,richest,and possibly most threatened sa-vanna the world is Cerrado,a large region occu-pies center ofSouth America.In an effort identify theworld’s important biodiversity hotspots,Myers andcolleagues (2000) ranked Cerrado among 25 im-portant terrestrial hotspots.It on their listdominated by savannas.The ofthe Cer-rado impressive;in area of1.86 million km