Resilience assessment of Puerto Rico’s coral reefs to inform reef management

Autoři: David A. Gibbs aff001;  Jordan M. West aff002
Působiště autorů: Oak Ridge Institute for Science Education fellow at U.S. Environmental Protection Agency, Washington, D.C., United States of America aff001;  U.S. Environmental Protection Agency, Office of Research and Development, Washington, D.C., United States of America aff002
Vyšlo v časopise: PLoS ONE 14(11)
Kategorie: Research Article
doi: 10.1371/journal.pone.0224360


Globally increasing sea surface temperatures threaten coral reefs, both directly and through interactions with local stressors. More resilient reefs have a higher likelihood of returning to a coral-dominated state following a disturbance, such as a mass bleaching event. To advance practical approaches to reef resilience assessments and aid resilience-based management of coral reefs, we conducted a resilience assessment for Puerto Rico’s coral reefs, modified from methods used in other U.S. jurisdictions. We calculated relative resilience scores for 103 sites from an existing commonwealth-wide survey using eight resilience indicators—such as coral diversity, macroalgae percent cover, and herbivorous fish biomass—and assessed which indicators most drove resilience. We found that sites of very different relative resilience were generally highly spatially intermixed, underscoring the importance and necessity of decision making and management at fine scales. In combination with information on levels of two localized stressors (fishing pressure and pollution exposure), we used the resilience indicators to assess which of seven potential management actions could be used at each site to maintain or improve resilience. Fishery management was the management action that applied to the most sites. Furthermore, we combined sites’ resilience scores with projected ocean warming to assign sites to vulnerability categories. Island-wide or community-level managers can use the actions and vulnerability information as a starting point for resilience-based management of their reefs. This assessment differs from many previous ones because we tested how much information could be yielded by a “desktop” assessment using freely-available, existing data rather than from a customized, resilience-focused field survey. The available data still permitted analyses comparable to previous assessments, demonstrating that desktop resilience assessments can substitute for assessments with field components under some circumstances.

Klíčová slova:

Coral reefs – Corals – Herbivory – Islands – Pollution – Simpson index – Puerto Rico – Bleaching


1. Intergovernmental Panel on Climate Change (IPCC). Climate Change 2007: Working Group II: Impacts, Adaptation and Vulnerability. Contribution of Working Group II to the Fourth Assessment of the Intergovernmental Panel on Climate Change. UK: Cambridge University Press; 2007.

2. Maynard JA, Marshall PA, Parker B, McLeod E, Ahmadia G, van Hooidonk R, et al. Guide to Assessing Coral Reef Resilience for Decision Support. 2017.

3. Mumby PJ, Wolff NH, Bozec Y-M, Chollett I, Halloran P. Operationalizing the Resilience of Coral Reefs in an Era of Climate Change. Conservation Letters. 2014;7: 176–187. doi: 10.1111/conl.12047

4. Obura D. Coral Reef Resilience Assessment of the Nosy Hara Marine Protected Area, Northwest Madagascar. Gland, Switzerland: IUCN; 2009 p. 35.

5. IUCN. Coral Reef Resilience Assessment of the Bonaire National Marine Park, Netherlands Antilles. Gland, Switzerland: IUCN; 2011 p. 51.

6. Obura D, Grimsditch G. Resilience Assessment of Coral Reefs: Assesment protocol for coral reefs, focusing on coral bleaching and thermal stress. Gland, Switzerland: IUCN; 2009 p. 70.

7. Maynard JA, McLeod E. How-to-guide for conducting resilience assessments. The Nature Conservancy; 2012.

8. Maynard JA, McKagan S, Raymundo L, Johnson S, Ahmadia GN, Johnston L, et al. Assessing relative resilience potential of coral reefs to inform management. Biological Conservation. 2015;192: 109–119.

9. Maynard JA, McKagan S, Raymundo L, Johnson S, Ahmadia G, Johnston L, et al. Assessing relative resilience potential of coral reefs to inform management in the Commonwealth of the Northern Mariana Islands. 2015 p. 153.

10. Chung AE, Wedding LM, Green AL, Friedlander AM, Goldberg G, Meadows A, et al. Building Coral Reef Resilience Through Spatial Herbivore Management. Frontiers in Marine Science. 2019;6: 98. doi: 10.3389/fmars.2019.00098

11. Maynard JA, Marshall PA, Johnson JE, Harman S. Building resilience into practical conservation: identifying local management responses to global climate change in the southern Great Barrier Reef. Coral Reefs. 2010;29: 381–391. doi: 10.1007/s00338-010-0603-8

12. McClanahan TR, Donner SD, Maynard JA, MacNeil MA, Graham NAJ, Maina J, et al. Prioritizing Key Resilience Indicators to Support Coral Reef Management in a Changing Climate. PLoS One. 2012;7: e42884. doi: 10.1371/journal.pone.0042884 22952618

13. Maynard JA, Lewis K, Brown J, Ahmadia G. Assessing the relative resilience of the coral reefs of St. Croix, USVI. The Nature Conservancy and NOAA Coral Reef Conservation Program; 2014.

14. Maynard JA, Conklin E, Minton D, Most R, Couch C, Williams GJ, et al. Relative resilience potential and bleaching severity in the West Hawai’i Habitat Focus Area in 2015. 2016 p. 53.

15. Maynard JA, Byrne J, Kerrigan K, Tracey D, Bohnsack K, Pagan F, et al. Coral reef resilience to climate change in the Florida Reef Tract. 2017 p. 30.

16. NOAA, NOAA Coral Reef Conservation Program. National Coral Reef Monitoring Plan. 2014.

17. NOAA, NOAA Coral Reef Conservation Program. Belt Transect Fish Survey Protocol for the U.S. Caribbean and Flower Garden Banks National Marine Sanctuary. 2015.

18. NOAA, NOAA Coral Reef Conservation Program. Topographic Complexity Survey Protocol for the U.S. Caribbean and Flower Garden Banks National Marine Sanctuary. 2015.

19. NOAA, NOAA Coral Reef Conservation Program. Line Point-Intercept (LPI) Survey Protocol for the U.S. Caribbean and Flower Garden Banks National Marine Sanctuary. 2015.

20. NOAA, NOAA Coral Reef Conservation Program. Coral Demographics Survey Protocol for the U.S. Caribbean and Flower Garden Banks National Marine Sanctuary. 2015.

21. Maynard JA, Wilson J, Campbell S, Mangubhai S, Setiasih N, Sartin J, et al. Assessing coral resilience and bleaching impacts in the Indonesian archipelago. 62; 2012. Report No.: Technical Report to The Nature Conservancy with contributions from Wildlife Conservation Society and Reef Check Foundation Indonesia.

22. USEPA. A Practitioner’s Guide to the Biological Condition Gradient: A Framework to Describe Incremental Change in Aquatic Ecosystems, Appendix B. EPA-842-R-16-001. 2016 p. Table B3–6.

23. Safaie A, Silbiger NJ, McClanahan TR, Pawlak G, Barshis DJ, Hench JL, et al. High frequency temperature variability reduces the risk of coral bleaching. Nature Communications. 2018;9: 1671. doi: 10.1038/s41467-018-04074-2 29700296

24. Simpson EH. Measurement of Diversity. Nature. 1949;163: 688–688. doi: 10.1038/163688a0

25. Heron SF, Maynard JA, van Hooidonk R, Eakin CM. Warming Trends and Bleaching Stress of the World’s Coral Reefs 1985–2012. Scientific Reports. 2016;6: 38402. doi: 10.1038/srep38402 27922080

26. Guest JR, Edmunds PJ, Gates RD, Kuffner IB, Andersson AJ, Barnes BB, et al. A framework for identifying and characterising coral reef “oases” against a backdrop of degradation. Journal of Applied Ecology. 2018;55: 2865–2875. doi: 10.1111/1365-2664.13179

27. R Core Team. R: A language and environment for statistical computing. R Foundation for Statistical Computing; 2014.

28. Hoegh-Guldberg O, Mumby PJ, Hooten AJ, Steneck RS, Greenfield P, Gomez E, et al. Coral Reefs Under Rapid Climate Change and Ocean Acidification. Science. 2007;318: 1737. doi: 10.1126/science.1152509 18079392

29. Grimsditch G, Tamelander J, Mwaura J, Zavagli M, Takata Y, Gomez T. Coral Reef Resilience Assessment of the Pemba Channel Conservation Area, Tanzania. Gland, Switzerland: IUCN; 2009 p. 40.

30. Shivlani M, Koeneke R. Spatial characterization of artisanal fisheries in Puerto Rico: Geographic Information Systems (GIS) approach for assessing the regional effort and landings. 2011. pp. 61–66.

31. Koeneke R. Spatial Characterization of Puerto Rican Commercial Fisheries: Gear Usage Across Habitat Classes and Bathymetry Ranges. University of Miami. 2011.

32. Eslinger DL, Carter HJ, Pendleton M, Burkhalter S, Allen M. OpenNSPECT: The Open-source Nonpoint Source Pollution and Erosion Comparison Tool. 2012.

33. NOAA. Puerto Rico- Coastal Change Analysis Program (C-CAP) Regional Land Cover. 2017.

34. van Hooidonk R, Maynard J, Tamelander J, Gove J, Ahmadia G, Raymundo L, et al. Local-scale projections of coral reef futures and implications of the Paris Agreement. Scientific Reports. 2016;6: 39666. doi: 10.1038/srep39666 28000782

35. West JM, Courtney CA, Hamilton AT, Parker BA, Julius SH, Hoffman J, et al. Climate-Smart Design for Ecosystem Management: A Test Application for Coral Reefs. Environmental Management. 2017;59: 102–117. doi: 10.1007/s00267-016-0774-3 27734086

36. Stein BA, Glick P, Edelson N, Staudt A. Climate-Smart Conservation: Putting Adaptation Principles into Practice. Washington, D.C.: National Wildlife Federation; 2014.

37. West JM, Courtney CA, Hamilton AT, Parker BA, Gibbs DA, Bradley P, et al. Adaptation Design Tool for Climate-Smart Management of Coral Reefs and Other Natural Resources. Environmental Management. 2018;62: 644–664. doi: 10.1007/s00267-018-1065-y 29934650

Článek vyšel v časopise


2019 Číslo 11