Indicators from the global and sub-global Millennium Ecosystem Assessments: An analysis and next steps

There is growing interests among policy-makers in applying ecosystem services concepts to inform strategies that provide for peoples' needs while sustaining ecosystems and maintaining biodiversity. Since many policy dialogs and decisions rely on metrics and indicators to communicate concise and relevant information, an assessment of ecosystem service indicators can help identify gaps hindering policy-makers from more fully adopting ecosystem service approaches. In this study, we present an evaluation of ecosystem service indicators compiled from over 20 ecosystem assessments conducted at multiple scales and many countries. Based on criteria used to assess the compiled indicators, the strengths and weaknesses of indicators for different ecosystem services are explored, and possible reasons for these patterns examined. We then outline some priority steps for identifying and applying indicators to improve the ability of policy-makers to more fully mainstream ecosystem service approaches. (C) 2011 Elsevier Ltd. All rights reserved.