Coral reef annihilation, persistence and recovery at Earth’s youngest volcanic island

Abstract
The structure and function of coral reef ecosystems is increasingly compromised by multiple stressors, even in the most remote locations. Severe, acute disturbances such as volcanic eruptions represent extreme events that can annihilate entire reef ecosystems, but also provide unique opportunities to examine ecosystem resilience and recovery. Here, we examine the destruction, persistence and initial recovery of reefs associated with the hydro-magmatic eruption that created Earth’s newest landmass, the Hunga Tonga–Hunga Ha’apai volcanic island. Despite extreme conditions associated with the eruption, impacts on nearby reefs were spatially variable. Importantly, even heavily affected reefs showed signs of rapid recovery driven by high recruitment, likely from local refuges. The remote location and corresponding lack of additional stressors likely contribute to the resilience of Hunga’s reefs, suggesting that in the absence of chronic anthropogenic stressors, coral reefs can be resilient to one of the largest physical disturbances on Earth.

Citation
Smallhorn-West, P. F., Garvin, J. B., Slayback, D. A., DeCarlo, T. M., Gordon, S. E., Fitzgerald, S. H., … Bridge, T. C. L. (2019). Coral reef annihilation, persistence and recovery at Earth’s youngest volcanic island. Coral Reefs. doi:10.1007/s00338-019-01868-8

Acknowledgements
We thank Whale Discoveries, Jason Sheehan and Chancey MacDonald for field support and Robert Pressey for funding. This work was supported by the Australian Research Council Centre for Excellence in Coral Reef Studies and the National Geographic Society.

Publisher
Springer Nature

Journal
Coral Reefs

DOI
10.1007/s00338-019-01868-8

Additional Links
http://link.springer.com/10.1007/s00338-019-01868-8

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