Show simple item record

dc.contributor.authorRoth, Florian
dc.contributor.authorRädecker, Nils
dc.contributor.authorCarvalho, Susana
dc.contributor.authorDuarte, Carlos M.
dc.contributor.authorSaderne, Vincent
dc.contributor.authorAnton Gamazo, Andrea
dc.contributor.authorSilva, Luis
dc.contributor.authorCalleja Cortes, Maria de Lluch
dc.contributor.authorMoran, Xose Anxelu G.
dc.contributor.authorVoolstra, Christian R.
dc.contributor.authorKürten, Benjamin
dc.contributor.authorJones, Burton
dc.contributor.authorWild, Christian
dc.date.accessioned2020-10-18T07:19:18Z
dc.date.available2020-10-18T07:19:18Z
dc.date.issued2020-10-17
dc.identifier.citationRoth, F., Rädecker, N., Carvalho, S., Duarte, C. M., Saderne, V., Anton, A., … Wild, C. (2020). High summer temperatures amplify functional differences between coral- and algae-dominated reef communities. Ecology. doi:10.1002/ecy.3226
dc.identifier.issn0012-9658
dc.identifier.issn1939-9170
dc.identifier.doi10.1002/ecy.3226
dc.identifier.doi10.1002/bes2.1822
dc.identifier.urihttp://hdl.handle.net/10754/665606
dc.description.abstractShifts from coral to algal dominance are expected to increase in tropical coral reefs as a result of anthropogenic disturbances. The consequences for key ecosystem functions such as primary productivity, calcification, and nutrient recycling are poorly understood, particularly under changing environmental conditions. We used a novel in situ incubation approach to compare functions of coral- and algae-dominated communities in the central Red Sea bi-monthly over an entire year. In situ gross and net community primary productivity, calcification, dissolved organic carbon fluxes, dissolved inorganic nitrogen fluxes, and their respective activation energies were quantified to describe the effects of seasonal changes. Overall, coral-dominated communities exhibited 30% lower net productivity and 10 times higher calcification than algae-dominated communities. Estimated activation energies indicated a higher thermal sensitivity of coral-dominated communities. In these communities, net productivity and calcification were negatively correlated with temperature (>40% and >65% reduction, respectively, with +5°C increase from winter to summer), while carbon losses via respiration and dissolved organic carbon release were more than doubled at higher temperatures. In contrast, algae-dominated communities doubled net productivity in summer, while calcification and dissolved organic carbon fluxes were unaffected. These results suggest pronounced changes in community functioning associated with phase shifts. Algae-dominated communities may outcompete coral-dominated communities due to their higher productivity and carbon retention to support fast biomass accumulation while compromising the formation of important reef framework structures. Higher temperatures likely amplify these functional differences, indicating a high vulnerability of ecosystem functions of coral-dominated communities to temperatures even below coral bleaching thresholds. Our results suggest that ocean warming may not only cause but also amplify coral-algal phase shifts in coral reefs.
dc.description.sponsorshipWe are grateful to the personnel from the King Abdullah University of Science and Technology (KAUST) Coastal and Marine Resources Core (CMOR) Laboratory for logistical support. The authors would also like to acknowledge Rodrigo Villalobos and João Cúrdia who helped during fieldwork. Figure 5 was produced by Xavier Pita, scientific illustrator at KAUST. We would liketo thank the two anonymous reviewers and the editor for their helpful suggestions and comments. The research was supported by KAUST baseline funding to BHJ and by grant Wi 2677/9-1 from the German Research Foundation (DFG) to CW. Author contributions:FR, CW and SC conceptualized and designed research. FR, LS, MLC, and VS performed research. FR, NR, VS, AA, LS, BK, and MLC analyzed data. CMD, XAGM, CRV, and BHJ contributed to research materials, logistics and to interpreting data. FR wrote original draft of the manuscript with support by CW. All authors read and approved the final manuscript
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/10.1002/ecy.3226
dc.rightsArchived with thanks to Ecology
dc.titleHigh summer temperatures amplify functional differences between coral- and algae-dominated reef communities
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentMarine Science Program
dc.contributor.departmentMicrobial oceanography Research Group
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.contributor.departmentReef Genomics Lab
dc.identifier.journalEcology
dc.eprint.versionPost-print
dc.contributor.institutionBaltic Sea Centre Stockholm University Stockholm Sweden
dc.contributor.institutionFaculty of Biological and Environmental Sciences Tvärminne Zoological Station University of Helsinki Helsinki Finland
dc.contributor.institutionDepartment of Biology University of Konstanz Konstanz Germany
dc.contributor.institutionLaboratory for Biological Geochemistry School of Architecture Civil and Environmental Engineering Ecole Polytechnique Fédérale de Lausanne (EPFL) Lausanne Switzerland
dc.contributor.institutionDepartment of Climate Geochemistry Max Planck Institute for Chemistry (MPIC) Mainz Germany
dc.contributor.institutionJülich Research Centre GmbH Project Management Jülich Rostock Germany
dc.contributor.institutionMarine Ecology Faculty of Biology and Chemistry University of Bremen Bremen Germany
kaust.personRoth, Florian
kaust.personRadecker, Nils
kaust.personCarvalho, Susana
kaust.personDuarte, Carlos M.
kaust.personDuarte, Carlos M.
kaust.personSaderne, Vincent
kaust.personAnton Gamazo, Andrea
kaust.personAnton Gamazo, Andrea
kaust.personSilva, Luis
kaust.personCalleja Cortes, Maria de Lluch
kaust.personMoran, Xose Anxelu G.
kaust.personVoolstra, Christian R.
kaust.personKürten, Benjamin
kaust.personJones, Burton
dc.date.accepted2020-10-17
dc.relation.issupplementedbyDOI:10.25781/KAUST-D41Q0
refterms.dateFOA2020-10-18T07:20:17Z
display.relations<b>Is Supplemented By:</b><br/> <ul><li><i>[Dataset]</i> <br/> Roth, F., Rädecker, N., Carvalho, S., Duarte, C. M., Saderne, V., Anton, A., Silva, L., Calleja, M., Voolstra, C. R., Kürten, B., Jones, B., &amp; Wild, C. (2020). Data for: "High summer temperatures amplify functional differences between coral- and algae-dominated reef communities" [Data set]. KAUST Research Repository. https://doi.org/10.25781/KAUST-D41Q0. DOI: <a href="https://doi.org/10.25781/KAUST-D41Q0" >10.25781/KAUST-D41Q0</a> Handle: <a href="http://hdl.handle.net/10754/664852" >10754/664852</a></a></li></ul>
kaust.acknowledged.supportUnitCMOR
kaust.acknowledged.supportUnitKAUST baseline fund
kaust.acknowledged.supportUnitscientific illustrator


Files in this item

Thumbnail
Name:
ecy.3226.pdf
Size:
17.27Mb
Format:
PDF
Description:
Accepted Article

This item appears in the following Collection(s)

Show simple item record