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dc.contributor.authorPenny, Amelia
dc.contributor.authorDornelas , Maria
dc.contributor.authorMagurran, Anne
dc.identifier.citationPenny , A , Dornelas , M & Magurran , A 2023 , ' Comparing temporal dynamics of compositional reorganization in long-term studies of birds and fish ' , Ecology Letters , vol. 26 , no. 7 , 14214 , pp. 1071-1083 .
dc.identifier.otherORCID: /0000-0002-0036-2795/work/135454693
dc.identifier.otherORCID: /0000-0002-4392-8090/work/135454743
dc.descriptionFunding: Leverhulme Trust - RPG-2019-402.en
dc.description.abstractThe composition of ecological assemblages has changed rapidly over the past century. Compositional reorganization rates are high relative to rates of alpha diversity change, creating an urgent need to understand how this compositional reorganization is progressing. We developed a quantitative framework for comparing temporal trajectories of compositional reorganization and applied it to two long-term bird and marine fish datasets. We then evaluated how the number and magnitude of short-term changes relate to overall rates of change. We found varied trajectories of turnover across birds and fish, with linear directional change predominating in birds and non-directional change more common in fish. The number of changes away from the baseline was a more consistent correlate of the overall rate of change than the magnitude of such changes, but large unreversed changes were found in both fish and birds, as were time series with accelerating compositional change. Compositional reorganization is progressing through a complex mix of temporal trajectories, including both threshold-like behaviour and the accumulation of repeated, linear change.
dc.relation.ispartofEcology Lettersen
dc.subjectBiodiversity changeen
dc.subjectCompositional reorganizationen
dc.subjectJaccard dissimilarityen
dc.subjectTemporal beta diversityen
dc.subjectTrajectory analysisen
dc.subjectQH301 Biologyen
dc.subjectQL Zoologyen
dc.titleComparing temporal dynamics of compositional reorganization in long-term studies of birds and fishen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Centre for Biological Diversityen
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.description.statusPeer revieweden

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