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Comanagement of coral reef social-ecological systems
Edited by Elinor Ostrom, Indiana University, Bloomington, IN, and approved February 28, 2012 (received for review December 21, 2011)

Abstract
In an effort to deliver better outcomes for people and the ecosystems they depend on, many governments and civil society groups are engaging natural resource users in collaborative management arrangements (frequently called comanagement). However, there are few empirical studies demonstrating the social and institutional conditions conducive to successful comanagement outcomes, especially in small-scale fisheries. Here, we evaluate 42 comanagement arrangements across five countries and show that: (i) comanagement is largely successful at meeting social and ecological goals; (ii) comanagement tends to benefit wealthier resource users; (iii) resource overexploitation is most strongly influenced by market access and users’ dependence on resources; and (iv) institutional characteristics strongly influence livelihood and compliance outcomes, yet have little effect on ecological conditions.
- common property
- governance
- human–environment interaction
- institutional design principles
- common-pool resources
Footnotes
- ↵1To whom correspondence should be addressed. E-mail: Joshua.Cinner{at}jcu.edu.au.
Author contributions: J.E.C., T.R.M., T.M.D., and A.W. designed research; J.E.C., T.R.M., N.A.J.G., T.M.D., A.M., D.A.F., A.L.R., A.W., N.J., S.J.C., A.H.B., F.A.J.-H., S.H., R.L., T.M., and J.K. performed research; J.E.C., T.R.M., M.A.M., N.A.J.G., and A.H.B. analyzed data; and J.E.C., T.R.M., M.A.M., N.A.J.G., T.M.D., A.M., D.A.F., A.L.R., A.W., N.J., S.J.C., A.H.B., F.A.J.-H., S.H., R.L., T.M., and J.K. wrote the paper.
The authors declare no conflict of interest.
This article is a PNAS Direct Submission.
This article contains supporting information online at www.pnas.org/lookup/suppl/doi:10.1073/pnas.1121215109/-/DCSupplemental.
Freely available online through the PNAS open access option.