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dc.contributor.authorMagurran, Anne Elizabeth
dc.contributor.authorDeacon, Amy Elizabeth
dc.contributor.authorMoyes, Faye Helen
dc.contributor.authorShimadzu, Hideyasu
dc.contributor.authorAzeredo de Dornelas, Maria Ana
dc.contributor.authorPhillip, Dawn
dc.contributor.authorRamnarine, Indar
dc.identifier.citationMagurran , A E , Deacon , A E , Moyes , F H , Shimadzu , H , Azeredo de Dornelas , M A , Phillip , D & Ramnarine , I 2018 , ' Divergent biodiversity change within ecosystems ' , Proceedings of the National Academy of Sciences of the United States of America , vol. 115 , no. 8 , pp. 1843-1847 .
dc.identifier.otherORCID: /0000-0002-0036-2795/work/43550267
dc.identifier.otherORCID: /0000-0001-9687-0593/work/41757153
dc.descriptionThis project was funded by the European Research Council (AdG BioTIME 250189 and PoC BioCHANGE 727440). A.E.M. also acknowledges support from the Royal Society and M.D. from the Scottish Funding Council (Marine Alliance for Science and Technology for Scotland Grant HR09011).en
dc.description.abstractThe Earth’s ecosystems are under unprecedented pressure, yet the nature of contemporary biodiversity change is not well understood. Growing evidence that community size is regulated highlights the need for improved understanding of community dynamics. As stability in community size could be underpinned by marked temporal turnover, a key question is the extent to which changes in both biodiversity dimensions (temporal α- and temporal β-diversity) covary within and among the assemblages that comprise natural communities. Here, we draw on a multiassemblage dataset (encompassing vertebrates, invertebrates, and unicellular plants) from a tropical freshwater ecosystem and employ a cyclic shift randomization to assess whether any directional change in temporal α-diversity and temporal β-diversity exceeds baseline levels. In the majority of cases, α-diversity remains stable over the 5-y time frame of our analysis, with little evidence for systematic change at the community level. In contrast, temporal β-diversity changes are more prevalent, and the two diversity dimensions are decoupled at both the within- and among-assemblage level. Consequently, a pressing research challenge is to establish how turnover supports regulation and when elevated temporal β-diversity jeopardizes community integrity.
dc.relation.ispartofProceedings of the National Academy of Sciences of the United States of Americaen
dc.subjectBiodiversity changeen
dc.subjectTropical ecologyen
dc.subjectTemporal turnoveren
dc.subjectCommunity-level regulationen
dc.subjectGE Environmental Sciencesen
dc.subjectQA Mathematicsen
dc.subjectQH301 Biologyen
dc.subjectSDG 15 - Life on Landen
dc.titleDivergent biodiversity change within ecosystemsen
dc.typeJournal articleen
dc.contributor.sponsorEuropean Research Councilen
dc.contributor.sponsorEuropean Research Councilen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Marine Alliance for Science & Technology Scotlanden
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews. Institute of Behavioural and Neural Sciencesen
dc.contributor.institutionUniversity of St Andrews. St Andrews Sustainability Instituteen
dc.contributor.institutionUniversity of St Andrews. Fish Behaviour and Biodiversity Research Groupen
dc.contributor.institutionUniversity of St Andrews. Centre for Research into Ecological & Environmental Modellingen
dc.contributor.institutionUniversity of St Andrews. Centre for Biological Diversityen
dc.description.statusPeer revieweden

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