Payments for environmental services (PES) have been distinguished from the more common integrated conservation and development projects on the grounds that PES are direct, more cost-effective, less complex institutionally, and therefore more likely to produce the desired results.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/campfire-programme-zimbabwe-payments-wildlife-services
[2] http://admin.indiaenvironmentportal.org.in/category/author/peter-gh-frost
[3] http://admin.indiaenvironmentportal.org.in/category/author/ivan-bond
[4] http://admin.indiaenvironmentportal.org.in/category/journal/ecological-economics
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ecotourism
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ecosystem-services
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife-management
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/benefit-sharing
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/public-participation
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/zimbabwe
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment-management