Work Package 8, Valuation of Ecosystem Products and Services

Work Package 8, Valuation of Ecosystem Products and Services

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Meta Analysis of Coastal Ecosystems

Abbie Cruz-TrinidadPRIMEX, Philippines

Non Market Values

Existence ValueBequest ValueIndirect Value

• Non Market Valuation Techniques

• Travel Cost (TC)• Contingent Valuation

(CV)• Hedonic pricing• Damage Assessment• Conjoint Experiments

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What non-market valuation applications can tell us

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What kind of meta-analysis was applied

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Meta-analysis for coastal resources: what have we got?

Meta-analysis for coastal resources: what have we got?

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Meta Analysis Database StructureMeta Analysis Database Structure

Scope of study

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Listing of Non-market Valuation Reports

Author Country / Site Ecosystem / Service or Species Studied

(1) M.E. Kragt et. al. Australia / Great Barrier Reef coral reefs

(2) G. Dharmaratne Belize coral reefs

(3) J.E. Wilen et. al. Ecuador / Galapagos coastal waters

(4) J. Edward Taylor et al. Honduras / Bay Islands coral reefs

(5) Seung-Jun Kwak et al. Korea / Woopo Wetlands wetland

(6) B.H. Yeo Malaysia / Pulau Payar coral reefs

(7) R. Naylor and M. Drew Micronesia, Kosrae Mangroves

(8) P.A.L.D. Nunes Netherlands / Zandvoort marine ecosystem

(9) S. Thur Netherlands Antilles / Bonaire marine park

(10) T. Arin and R.A. Kramer Philippines / Batangas, Cebu and Bohol coral reef

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Listing of Non-market Valuation Reports (cont.)Author Country / Site Ecosystem / Service or Species

Studied

(11) M. Ahmed et. al. Philippines / Bolinao coral reefs

(12) R.F Subade Philippines / Tubbataha Reef coral reefs

(13) J. Padilla et al.Philippines/ Hundred Islands

National parkcoral reefs

(14) H.O Mohd-Shahwahid and R. McNally

Samoa / Palolo Deep marine reserve

(15) L. Mathieu et. al. Seychelles coral reefs

(16) N. Barker and C.M. Roberts. St. Lucia / Soufriere coral reefs

(17) Z. Ngazy et. al. Tanzania / Unguja Island coral reefs

(18) R. ChuenpagdeeThailand / Gulf of Thailand and

Phang Nga Baycoastal ecosystems

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Listing of Non-market Valuation Reports (cont.)Author Country / Site Ecosystem / Service or Species

Studied

(19) B.D. Solomon et. al. USA / Florida marine species (manatee)

(20) R.T. Carson et. al. USA / Alaska marine ecosystem

(21) Bin and Polasky USA / North Carolina wetlands

(22) D.C. Hall et. al. USA / South California rocky intertidal zone

(23) Pham Khanh Nam and Tran Vo Hung Son

Vietnam / Nha Trang coral reefs

(24) U. Seenprachawong Thailand / Phi Phi Islands coral reefs

(25) J. Alder et. al. USAcoral reefs, estuaries and

seamounts

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Average for domestic tourists: US$ 8

Average for foreign tourists: US$ 28

Determinants of Willingness to Pay (WTP)

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WTP functional relationship

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WTP functional relationship

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Conclusion statistics look encouraging but model not robust enough for forecasting --- plugged in values result in high WTP values samples/number of papers should be expandedneed to formulate hypothesis applicable to tropical coastal ecosystemsExercise should contribute to setting “best practices” for CV/TC studies

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