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Measuring effectiveness, efficiency and equity in an experimental Payments for Ecosystem Services trial
Adrian Martin1, Nicole Gross-Camp1, Bereket Kebede1
1University of East Anglia, School of International Development, Norwich NR4 7TJ, United Kingdom.
Summary
Payments for Ecosystem Services (PES) effectively support biodiversity conservation in African protected areas. While monitoring is cost-effective short-term, PES uniquely shifts conservation motives and improves local perceptions for long-term sustainability.
Area of Science:
- Environmental Management
- Conservation Biology
- Ecological Economics
Background:
- Growing interest in evaluating Payments for Ecosystem Services (PES) as an environmental management tool.
- Need to assess PES effectiveness for biodiversity conservation in African protected areas.
Purpose of the Study:
- To experimentally evaluate PES as a tool for biodiversity conservation.
- To investigate the impacts of PES on effectiveness, efficiency, and equity.
Main Methods:
- Utilized a 'before and after' and 'with and without' experimental design.
- Conducted social and ecological surveys to gather data.
Main Results:
- PES schemes were effective in achieving additional conservation outcomes.
- Increased monitoring proved similarly effective in the short term at a lower cost.
- PES significantly altered conservation motives and improved local perceptions of the protected area and its authority.
Conclusions:
- Conservation efficiency should encompass long-term behavioral motive sustainability, not just short-term cost-effectiveness.
- PES offers a unique contribution by fostering sustainable motives and resolving equity-efficiency trade-offs.
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