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Title: Trophic strategy and bleaching resistance in reef-building corals
Authors: Conti-Jerpe, Inga E.
Thompson, Philip D.
Wong, Martin Cheong Wai
Oliveira, Nara L.
Duprey, Nicolas N.
Moynihan, Molly A.
Baker, David M.
Keywords: Science::Geology
Issue Date: 2020
Source: Conti-Jerpe, I. E., Thompson, P. D., Wong, M. C. W., Oliveira, N. L., Duprey, N. N., Moynihan, M. A., & Baker, D. M. (2020). Trophic strategy and bleaching resistance in reef-building corals. Science Advances, 6(15), eaaz5443-. doi:10.1126/sciadv.aaz5443
Journal: Science Advances
Abstract: Ocean warming increases the incidence of coral bleaching, which reduces or eliminates the nutrition corals receive from their algal symbionts, often resulting in widespread mortality. In contrast to extensive knowledge on the thermal tolerance of coral-associated symbionts, the role of the coral host in bleaching patterns across species is poorly understood. Here, we applied a Bayesian analysis of carbon and nitrogen stable isotope data to determine the trophic niche overlap between corals and their symbionts and propose benchmark values that define autotrophy, heterotrophy, and mixotrophy. The amount of overlap between coral and symbiont niche was negatively correlated with polyp size and bleaching resistance. Our results indicated that as oceans warm, autotrophic corals lose their competitive advantage and thus are the first to disappear from coral reefs.
ISSN: 2375-2548
DOI: 10.1126/sciadv.aaz5443
Rights: © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EOS Journal Articles

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