Discussion on the value of estuarine and coastal ecosystem services
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Transcript of Discussion on the value of estuarine and coastal ecosystem services
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The value of estuarine and coastal
ecosystem services Edward B. Barbier, Sally D. Hacker, Chris Kennedy, Evamaria W. Koch, Adrian C. Stier, and Brian R. Silliman
2011. Ecological Monographs 81(2): 169 – 193.
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+Ecosystem Services
“…interpreted to imply the contribution of nature to a variety
of ‘goods and services’”
Economists describe ecosystem services as either
1. Goods = products, e.g. fish harvest, drinking water
2. Services = benefits, e.g. tourism, erosion control
3. Cultural benefits – e.g. heritage value
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+Ecosystem Services or Benefits
Good or service that person or society is willing to pay for
Good or service increases human welfare
Classifying Ecosystem Services
Intermediate vs. Final
Consumptive vs. Non-consumptive
Direct vs. Indirect
Use vs. Non-Use
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+Three steps of economic valuation
1) Change in ecosystem structure, functions,
and process
2) Effect of change on quality and quantity of
services
3) Change in human welfare from change in
ecosystem service
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+Ecosystem Production Function
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Ecological Production Function of Coral Reefs in
Seychelles
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+Coral Reefs
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+Seagrass beds
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+Problems with Economic Valuation
of Ecological Services
Lack of available data
Spatial and temporal variation
Problems with certain valuation methods such as
replacement cost method
Connectivity and synergy of ECEs
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+Management Action Plan
Require estimates derived by economists, ecologists, and
environmental scientists working together
Recognize and address ‘costs’ of destroying ECEs
Prevent and regulate activities that lead to loss of ECEs
Co-management of ECEs by local communities and
governments; particularly where economy of local
community dependent on delivery of services from ECEs
Increase restoration efforts (while reducing destruction) of
ECEs
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+Valuation of Ecosystem Services of
ECEs in Puerto Rico
Images taken from P. Bradley’s presentation “The Human Component of the
Coral Reef Ecosystem: A Framework for Sustainability. Downloaded pdf of her
ppt at
http://www.conference.ifas.ufl.edu/emecs9/Presentations/Wednesday/Salon%2
07-8/am/0915%
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Document downloaded from: http://www.epa.gov/ged/quantify.pdf
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QUANTIFYING ECOSYSTEM SERVICE OF CORAL REEF =
SHORELINE PROTECTION
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+ QUANTIFYING ECOSYSTEM SERVICE OF CORAL REEF =
SHORELINE PROTECTION
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QUANTIFYING ECOSYSTEM SERVICE OF CORAL REEF =
SHORELINE PROTECTION