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Economic Potential of Wetland Habitats in Europe

Economic Potential of Wetland Habitats in Europe. Yvonne Scheidegger Uwe A. Schneider. Tragedy of Wetlands . Objective . Find socially optimal balance between alternative wetland uses by integrating biological benefits (birds) economic opportunities (agriculture) Large region

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Economic Potential of Wetland Habitats in Europe

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  1. Economic Potential of Wetland Habitats in Europe Yvonne Scheidegger Uwe A. Schneider

  2. Tragedy of Wetlands

  3. Objective Find socially optimal balance between alternative wetland uses by integrating • biological benefits (birds) • economic opportunities (agriculture) • Large region • Majority of endangered birds

  4. Bird directive 1979 Annex I Species 28 species depending on wetlands as breeding/ wintering/ resting grounds Families: herons, raptors, storks Birds Kingfisher Corncrake Great White Egret Black Stork

  5. Wetland Degradation Human exploitation • Agriculture • Drainage • Human Settlements • Preferred location for living • Transportation systems • Industry • Pollution

  6. Wetland Preservation Preservation • Habitat for Species • Ecological Functions • Flood control • Shoreline stabilization • Nutrient retention • Purification of water • Climate

  7. Ramsar Convention 1971 Ramsar, Iran Conservation and wise use of wetlands Ramsar List 2003 137 contracting parties 1369 wetlands of international importance CLASSIFICATION MARINE WETLANDS ESTUARINE WETLANDS WETLANDS ASSOCIATED WITH LAKES WETLANDS ALONG RIVERS MARSHY WETLANDS HUMAN-MADE WETLANDS Ramsar Convention

  8. Lake/Pond Open water surface Transition zone Marsh Frequent flooding/permanent shallow water Reed beds Wetlands

  9. Wet Meadow Humid soils Grassland Extensive cultivation Peatland Anaerobic conditions fen raised bog Wetlands

  10. River/Floodplain Periodic flooding Sand and gravel banks, oxbow lakes Floodplain forest Typical vegetation Wetlands

  11. Model Variables POPr,b,l,w Bird population [N] ADDr,w Added area [ha] DELr,w Lost area [ha] HAB0r,b,l,w Habitat size < minimum habitat size [ha] HAB1r,b,l,w Habitat size > minimum habitat size [ha] r Region w Wetland l living status b Bird

  12. population hmin 0 area HAB1 HAB0 Model nsafe

  13. Model Parameter dr,b,l,w Population density nsafeb,l Safe population level hminr,b,l,w Minimum habitat size [ha] hmaxr,w Maximum convertible area [ha] hexistr,w Existing land allocation [ha] cagr Agricultural opportunity costs [euro] c agwr Conversion costs [euro/ha] r Region w Wetland l living status b Bird

  14. Model Wetland Habitat Demand

  15. Model Wetland Habitat Supply

  16. Model Objective Function • Minimization of cost from land use and lost agricultural revenue summed across all regions and land use change type

  17. Model Economic Potential of Wetland Habitats • Solve repeatedly for different targets (t) • Plot total cost against target

  18. Indicative Results

  19. Future Tasks • Data improvement! • Soil type integration • Modeling of combined uses (low agricultural intensity + habitat) • Habitat linking between regions • Endogenous agricultural opportunity costs • Dynamics

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