ArticleBMC biology2026
Evaluating the role of coral trophic strategies in driving community shifts in response to heat stress via stable isotopes-based modeling.
Article in BMC biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
backgroundCorals are increasingly threatened by global climate change, which may lead to shifts in their community on geographic scales. Reef-building corals are mixotrophic and may increase heterotrophy to bolster their resilience to environmental stress. However, many studies only focus on trophic strategies at the species or genus level, overlooking whether the change in these strategies may cause community shifts.
resultsPrior to potential summer thermal events, we collected coral samples and classified them into different groups based on the shortest distance from the inner edge of the corallite wall (SDI), life history strategy (competitive vs. non-competitive), and evolutionary trajectory (complex vs. robust). Physiological measurements showed that the corals with small polyps, a competitive life history strategy, and membership in the complex clade had higher symbiotic density and greater chlorophyll content, indicating enhanced photosynthetic capacity. By integrating stable isotope analysis (δ
conclusionsOur findings suggest that trophic strategies, inferred from summer states, may play a role in coral resilience and provide new insights into how coral reefs may respond to climate change.
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