Conference Agenda
Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
Please note that all times are shown in the time zone of the conference. The current conference time is: 24th Aug 2026, 01:51:11am WEST
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Daily Overview |
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Valuing Ecosystem Services Location: B131 Session Chair: Michael Omonitan, University of Warsaw | |
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Mapping Matters: Marine Ecosystem Extent Accounts Shape Ecosystem Service Valuations 1: University of Galway, Ireland; 2: Marine Institute, Ireland; 3: Central Statistics Office, Ireland The UN System of Environmental-Economic Accounting – Ecosystem Accounting (SEEA EA) offers a framework for integrating ecosystem services into national statistics, but its economic service account outputs depend on the spatial resolution and ecological detail of the underlying extent accounts. This study examines how ecosystem extent accounting methods and ecosystem typology choices influence economic valuation, using Ireland as a diagnostic case study. Four accounting scenarios were compared, combining coarse and more refined ecosystem maps with two alternative classification schemes to assess their effects on service estimates. Uncertainty was incorporated through a probabilistic Monte Carlo simulation. Results show that differences in spatial resolution and typological aggregation systematically alter how ecosystem service values are allocated across ecosystem types and space, with changes in aggregate magnitude reflecting secondary accounting effects rather than the primary object of analysis. The direction and magnitude of valuation differences depend on how ecosystem extent is delineated and aggregated. This demonstrates that marine ecosystem valuation fundamentally relies on how ecosystems are defined and classified at the extent-account stage, with direct implications for transparency, comparability, and policy relevance under SEEA EA. | |