CONTINGENT VALUATION OF MARINE PROTECTED AREAS: SOUTHERN CALIFORNIA ROCKY INTERTIDAL ECOSYSTEMS
Identifieur interne : 002142 ( Main/Merge ); précédent : 002141; suivant : 002143CONTINGENT VALUATION OF MARINE PROTECTED AREAS: SOUTHERN CALIFORNIA ROCKY INTERTIDAL ECOSYSTEMS
Auteurs : RBID : ISTEX:DB4659676DAD3EF88B6FEF67A46B003CBA1889AADescripteurs français
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- topic : Biodiversité, Espèce marine.
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Abstract
ABSTRACT. Designation as Marine Protected Areas (MPAs) can protect coastal ecosystems, but apparently has not effectively protected the rocky intertidal zone in urban Southern California. Here, illegal collecting and habitat disturbance harm coastal marine life. We surveyed day visitors to sandy beaches or adjacent rocky habitats in Orange County. Using the close‐ended, double‐bounded contingent valuation method, we estimate the benefit of more effective enforcement and management of MPAs designed to avoid coastal ecosystem decay. We solve the problem of sample selection bias, introduced by the likelihood that the sample disproportionately includes respondents who visit more frequently and who may have a higher willingness to pay (WTP). We estimate the WTP for enacting policies to reduce illegal collecting and on‐site habitat disturbance to average $6 per family‐visit. Our estimate is consistent with other studies that estimate consumer surplus at $15 per person‐trip for nearby, lower quality beaches, and extrapolates from other studies to $3.6 $4.8 million per mile of coastline.
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DOI: 10.1111/j.1939-7445.2002.tb00093.x
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<record><TEI><teiHeader><fileDesc><titleStmt><title>CONTINGENT VALUATION OF MARINE PROTECTED AREAS: SOUTHERN CALIFORNIA ROCKY INTERTIDAL ECOSYSTEMS</title><author><name sortKey="Hall, Darwin C" uniqKey="Hall D">DARWIN C. HALL</name><affiliation wicri:level="1"><mods:affiliation>Department of Economics California State University, Long Beach Long Beach, CA 90840‐4607 E‐mail: dhall@csulb.edu</mods:affiliation><country wicri:rule="url">États-Unis</country><wicri:regionArea>Department of Economics California State University, Long Beach Long Beach</wicri:regionArea><wicri:noRegion>Long Beach Long Beach</wicri:noRegion></affiliation></author><author><name sortKey="Hall, Jane V" uniqKey="Hall J">JANE V. HALL</name><affiliation wicri:level="1"><mods:affiliation>Department of Economics California State University, Fullerton Fullerton, CA 92834 E‐mail:jhall@fullerton.edu</mods:affiliation><country wicri:rule="url">États-Unis</country><wicri:regionArea>Department of Economics California State University, Fullerton Fullerton</wicri:regionArea><wicri:noRegion>Fullerton Fullerton</wicri:noRegion></affiliation></author><author><name sortKey="Murray, Steven N" uniqKey="Murray S">STEVEN N. MURRAY</name><affiliation wicri:level="1"><mods:affiliation>Department of Biological Science California State University, Fullerton Fullerton, CA 92834 E‐mail:smurray@fullerton.edu</mods:affiliation><country wicri:rule="url">États-Unis</country><wicri:regionArea>Department of Biological Science California State University, Fullerton Fullerton</wicri:regionArea><wicri:noRegion>Fullerton Fullerton</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="RBID">ISTEX:DB4659676DAD3EF88B6FEF67A46B003CBA1889AA</idno><date when="2002">2002</date><idno type="doi">10.1111/j.1939-7445.2002.tb00093.x</idno><idno type="url">https://api.istex.fr/document/DB4659676DAD3EF88B6FEF67A46B003CBA1889AA/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">003539</idno><idno type="wicri:Area/Istex/Curation">003539</idno><idno type="wicri:Area/Istex/Checkpoint">001C66</idno><idno type="MainMerge">001C66</idno><idno type="wicri:Area/Main/Merge">002142</idno></publicationStmt><seriesStmt><idno type="ISSN">0890-8575</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biodiversity</term><term>Coastal ecosystems</term><term>Contingent valuation</term><term>Marine Protected Areas</term><term>Marine life</term><term>Rocky intertidal zone</term><term>Sample selection bias</term><term>Willingness‐to‐pay</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Biodiversité</term><term>Espèce marine</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="eng">ABSTRACT. Designation as Marine Protected Areas (MPAs) can protect coastal ecosystems, but apparently has not effectively protected the rocky intertidal zone in urban Southern California. Here, illegal collecting and habitat disturbance harm coastal marine life. We surveyed day visitors to sandy beaches or adjacent rocky habitats in Orange County. Using the close‐ended, double‐bounded contingent valuation method, we estimate the benefit of more effective enforcement and management of MPAs designed to avoid coastal ecosystem decay. We solve the problem of sample selection bias, introduced by the likelihood that the sample disproportionately includes respondents who visit more frequently and who may have a higher willingness to pay (WTP). We estimate the WTP for enacting policies to reduce illegal collecting and on‐site habitat disturbance to average $6 per family‐visit. Our estimate is consistent with other studies that estimate consumer surplus at $15 per person‐trip for nearby, lower quality beaches, and extrapolates from other studies to $3.6 $4.8 million per mile of coastline.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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