Metacommunity ecology of Symbiodiniaceae hosted by the coral Galaxea fascicularis

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dc.contributor.authorWepfer, Patricia H.
dc.contributor.authorNakajima, Yuichi
dc.contributor.authorHui, Francis
dc.contributor.authorMitarai, Satoshi
dc.contributor.authorEconomo, Evan P.
dc.date.accessioned2021-02-07T22:35:07Z
dc.date.available2021-02-07T22:35:07Z
dc.date.issued2020
dc.date.updated2020-11-02T04:27:48Z
dc.description.abstractCoral-algae symbiosis represents the trophic and structural basis of coral reef ecosystems. However, despite global threats to coral reefs and the dependence of coral health and stress resistance upon such mutualisms, little is known about the community ecology of endosymbiotic Symbiodiniaceae. Concepts and methods from metacommunity ecology may be used to help us understand the assembly and stability of symbiont communities and the mutualisms they comprise. In this study, we sampled colonies of the symbiont-generalist coral Galaxea fascicularis in southwestern Japan and assessed the effects of environmental and host factors on Symbiodiniaceae community composition, while simultaneously exploring residual correlations among symbiont types that may reflect non-random assembly processes such as species interactions. We metabarcoded the Symbiodiniaceae ribosomal internal transcribed spacer 2 (ITS2) region and characterized the endosymbiotic community using 2 different OTU identity cut-offs, and analyzed them with generalized dissimilarity modeling and joint species distribution modeling. We found that Symbiodiniaceae form discrete communities characterized by the dominance of ITS2 types C1, C21a, or D1, that are each associated with a different suite of co-occurring background types and tend to exclude each other in an endosymbiotic community. The communities showed modest responses to temperature, water depth, host genotype, polyp size, and bleaching status, and there was local sequence variation within the ITS2 types. After accounting for the effects of those variables, residual correlations remained in community composition, pointing to the possibility that Symbiodiniaceae community assembly in corals may be structured by interspecific competitive or facilitating interactions rather than only exogenous variables.en_AU
dc.description.sponsorshipThis work was supported by JSPS KAKENHI Grant Numbers 17J00366 to P.H.W. and 16H05621 to Y.N. All authors except F.K.C.H. were supported by subsidy funding to the Okinawa Institute of Science and Technology. F.K.C.H. was supported by an ANU Cross-Disciplinary Grant.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0171-8630en_AU
dc.identifier.urihttp://hdl.handle.net/1885/222365
dc.language.isoen_AUen_AU
dc.provenanceOpen Access under Creative Commons by Attribution Licence. Use, distribution and reproduction are unrestricted. Authors and original publication must be credited.en_AU
dc.publisherInter-Researchen_AU
dc.rights© The authors 2020.en_AU
dc.rights.licenseCreative Commons by Attribution Licenceen_AU
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_AU
dc.sourceMarine Ecology Progress Seriesen_AU
dc.subjectSymbiodiniaceaeen_AU
dc.subjectMetacommunityen_AU
dc.subjectJoint species distribution modelen_AU
dc.subjectITS2en_AU
dc.subjectMetabarcodingen_AU
dc.subjectMinimum entropy decompositionen_AU
dc.subjectGalaxea fascicularisen_AU
dc.titleMetacommunity ecology of Symbiodiniaceae hosted by the coral Galaxea fascicularisen_AU
dc.typeJournal articleen_AU
dcterms.accessRightsOpen Accessen_AU
local.bibliographicCitation.issue0171-8630en_AU
local.bibliographicCitation.lastpage87en_AU
local.bibliographicCitation.startpage71en_AU
local.contributor.affiliationWepfer, Patricia H., Okinawa Institute of Science and Technology Graduate Universityen_AU
local.contributor.affiliationNakajima, Yuichi, Okinawa Institute of Science and Technology Graduate Universityen_AU
local.contributor.affiliationHui, Francis, College of Business and Economics, ANUen_AU
local.contributor.affiliationMitarai, Satoshi, Okinawa Institute of Science and Technology Graduate Universityen_AU
local.contributor.affiliationEconomo, Evan P., Okinawa Institute of Science and Technology Graduate Universityen_AU
local.contributor.authoremailu1001205@anu.edu.auen_AU
local.contributor.authoruidHui, Francis, u1001205en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor060202 - Community Ecologyen_AU
local.identifier.ariespublicationu6269649xPUB772en_AU
local.identifier.citationvolume633en_AU
local.identifier.doi10.3354/meps13177en_AU
local.identifier.scopusID2-s2.0-85077933224
local.identifier.uidSubmittedByu6269649en_AU
local.publisher.urlhttps://www.int-res.com/home/en_AU
local.type.statusPublished Versionen_AU

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