The Challenge of Measuring Global Change in Wild Nature: Are Things Getting Better or Worse?
作者： Martin Jenkins , Rhys E. Green , Joah Madden
DOI: 10.1046/J.1523-1739.2003.01719.X
关键词:
摘要: The Ministerial Declaration made at the World Summit on Sustainable Development in Johannesburg agreed to protection and restoration of integrity our planet's ecological systems identified as a major priority significant reduction rate current biodiversity loss national global levels. This goal is essentially reformulation that Convention Biological Diversity Rio de Janeiro 10 years ago. For us have any idea where we are relation this goal, need information trends status natural systems. By 2005 it envisaged Millennium Ecosystem Assessment (MA) will provided comprehensive account from compilation existing data, but long time wait. What can say now about state wild nature since United Nations' 1992 Conference Environment Janeiro? Here, briefly review recent habitat area many broadly defined habitats possible indices animal populations characteristic those habitats. available indicates continuing declines species, data extremely sparse.
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