Presentation on Barbier et al. 2011 by Molly Ramsey

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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

7. Ecological Production Function of Coral Reefs in
Seychelles

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Coral Reefs

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Seagrass beds

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Saltmarshes

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Mangroves

13. +Sandbeachesanddunes

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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

17. Document downloaded from: http://www.epa.gov/ged/quantify.pdf

18. QUANTIFYING ECOSYSTEM SERVICE OF CORAL REEF =
SHORELINE PROTECTION

21. +QUANTIFYING ECOSYSTEM SERVICE OF CORAL REEF =
SHORELINE PROTECTION

22. QUANTIFYING ECOSYSTEM SERVICE OF CORAL REEF =
SHORELINE PROTECTION