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Updated: Jul 1, 2026

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Confronting the coral reef crisis.

D R Bellwood1, T P Hughes, C Folke

  • 1Centre for Coral Reef Biodiversity, Dept. of Marine Biology, James Cook University, Townsville, Queensland 4811, Australia. david.bellwood@jcu.edu.au

Nature
|June 25, 2004
PubMed
Summary

Coral reef decline necessitates better management. Understanding key fish and coral groups reveals Caribbean ecosystem vulnerabilities, informing conservation and restoration efforts for reef resilience.

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Area of Science:

  • Marine biology
  • Ecology
  • Conservation science

Background:

  • Global coral reefs face significant decline, threatening marine biodiversity and ecosystem services.
  • Current management strategies are insufficient to address large-scale reef crises effectively.

Purpose of the Study:

  • To review the ecological roles of critical coral and reef fish functional groups essential for reef resilience.
  • To identify biogeographic variations in functional group composition and their implications for ecosystem management.

Main Methods:

  • Literature review of ecological roles of key functional groups in coral reef ecosystems.
  • Analysis of species richness and composition across different biogeographic regions.

Main Results:

  • Functional groups play fundamental roles in maintaining coral dominance and preventing ecosystem phase shifts.
  • Significant differences in functional group richness and composition were observed between regions, with the Caribbean showing particular vulnerability.

Conclusions:

  • Integrating human impacts into resilience-based management is crucial for navigating uncertainty and ecological surprises.
  • Findings underscore the need for targeted conservation, fisheries management, and marine protected area strategies, especially in vulnerable regions like the Caribbean.