# Survival, rarity, and extinction in tropical stony corals

**Authors:** Bryan Wilson, Peter J. Edmunds

PMC · DOI: 10.1111/cobi.70200 · Conservation Biology · 2025-12-27

## TL;DR

This paper discusses the increasing rarity of tropical stony corals and the challenges in studying and conserving them.

## Contribution

The paper emphasizes the need for revised scientific approaches to better understand and protect rare tropical corals.

## Key findings

- Tropical stony corals are becoming increasingly rare in recent decades.
- Traditional ecological methods struggle to quantify rare corals due to marine environment challenges.
- New approaches are needed to address the conservation needs of rare coral species.

## Abstract

Many reef‐building tropical corals are becoming rare. We considered the meaning of rarity in corals and highlighted taxa that have reached low abundances in the last few decades. The difficulties of quantifying rarity in the marine environment arise from the sheer scale and 3‐dimensional nature of the biome and the inherent challenges therein of ecological surveys with scuba. To meet the demands of coral conservation biology in the 21st century, we suggest that contemporary studies of coral communities will require enhanced capacity to identify species and a species‐specific focus on corals occurring at low abundances, which traditional ecological approaches to quantifying populations of benthic marine organisms have a limited capacity to address. Now is the time to revise scientific approaches to respond to the challenges posed by the need to understand and protect rare tropical corals.

## Full-text entities

- **Diseases:** white band disease (MESH:D058745), stony coral tissue loss disease (MESH:D003240), RARE CORALS (OMIM:136570), RESEARCH NEEDS (MESH:D014947)
- **Chemicals:** carbon dioxide (MESH:D002245), INDIAN (-)
- **Species:** Homo sapiens (human, species) [taxon 9606], Orbicella annularis (boulder star coral, species) [taxon 48500], Stylasteridae (hydrocorals, family) [taxon 51112], Scleractinia (stony corals, order) [taxon 6125], PX clade (clade) [taxon 569578], Ctenella chagius (species) [taxon 541206], Seriatopora hystrix (bird's nest coral, species) [taxon 51070], Ctenella (genus) [taxon 541205], Dendrogyra cylindrus (species) [taxon 214965], Acropora palmata (elkhorn coral, species) [taxon 6131]

## Full text

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## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12856799/full.md

## References

170 references — full list in the complete paper: https://tomesphere.com/paper/PMC12856799/full.md

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Source: https://tomesphere.com/paper/PMC12856799