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dc.contributor.authorde Villemereuil, P.
dc.contributor.authorCharmantier, A.
dc.contributor.authorArlt, D.
dc.contributor.authorBize, P.
dc.contributor.authorBrekke, P.
dc.contributor.authorBrouwer, L.
dc.contributor.authorCockburn, A.
dc.contributor.authorCôté, S.D.
dc.contributor.authorStephen Dobson, F.
dc.contributor.authorEvans, S.R.
dc.contributor.authorFesta-Bianchet, M.
dc.contributor.authorGamelon, M.
dc.contributor.authorHamel, S.
dc.contributor.authorHegelbach, J.
dc.contributor.authorJerstad, K.
dc.contributor.authorKempenaers, B.
dc.contributor.authorKruuk, L.E.B.
dc.contributor.authorKumpula, J.
dc.contributor.authorKvalnes, T.
dc.contributor.authorMcAdam, A.G.
dc.contributor.authorEryn McFarlane, S.
dc.contributor.authorMorrissey, M.B.
dc.contributor.authorPärt, T.
dc.contributor.authorPemberton, J.M.
dc.contributor.authorQvarnström, A.
dc.contributor.authorRøstad, O.W.
dc.contributor.authorSchroeder, J.
dc.contributor.authorSenar, J.C.
dc.contributor.authorSheldon, B.C.
dc.contributor.authorvan de Pol, M.
dc.contributor.authorVisser, M.E.
dc.contributor.authorWheelwright, N.T.
dc.contributor.authorTufto, J.
dc.contributor.authorChevin, L.-M.
dc.identifier.citationde Villemereuil , P , Charmantier , A , Arlt , D , Bize , P , Brekke , P , Brouwer , L , Cockburn , A , Côté , S D , Stephen Dobson , F , Evans , S R , Festa-Bianchet , M , Gamelon , M , Hamel , S , Hegelbach , J , Jerstad , K , Kempenaers , B , Kruuk , L E B , Kumpula , J , Kvalnes , T , McAdam , A G , Eryn McFarlane , S , Morrissey , M B , Pärt , T , Pemberton , J M , Qvarnström , A , Røstad , O W , Schroeder , J , Senar , J C , Sheldon , B C , van de Pol , M , Visser , M E , Wheelwright , N T , Tufto , J & Chevin , L-M 2020 , ' Fluctuating optimum and temporally variable selection on breeding date in birds and mammals ' , Proceedings of the National Academy of Sciences of the United States of America , vol. 117 , no. 50 , pp. 31969-31978 .
dc.identifier.otherPURE: 273736049
dc.identifier.otherPURE UUID: a7e60d8d-9eec-43aa-b5fd-cf3ed5cc1bd3
dc.identifier.otherRIS: urn:4DA05BED2F76863600D67CD8C08D51FB
dc.identifier.otherScopus: 85098459450
dc.identifier.otherWOS: 000600608300055
dc.descriptionL-M.C. and P.d.V. acknowledge support from the European Research Council (ERC) (Grant 678140-FluctEvol). The Montpellier tit group acknowledges the long-term support of the Observatoire des Sciences de l’Univers – Obser-vatoire de REcherche Montpelliérain de l’Environnement (OSU-OREME). The bighorn, mountain goat, and eastern gray kangaroo studies were supported by Natural Sciences and Engineering Research Council (NSERC) of Canada. Recent data collection for Wytham has been provided by grants from Biotechnology and Biological Sciences Research Council (BB/L006081/1), ERC (AdG250164), and the UK Natural Environment Research Council (NERC) (NE/K006274/1, NE/S010335/1). The Columbian ground squirrel study was supported by the National Science Foundation (Grant DEB-0089473). Trait and fitness data for hihi were collected/managed by John Ewen under New Zealand Department of Conservation hihi management contracts and research permits AK/15073/RES, AK-24128-FAU, 36186-FAU, and 44300-FAU and with additional financial support via NERC UK, The Leverhulme Trust UK, Marsden Fund New Zealand, and the Hihi Conservation Charitable Trust. The data on reindeer were made available through the Reindeer husbandry in a Globalizing North Nordic Center of Excellence, and the crew at Kutuharju Experimental Reindeer Research Station in the Reindeer Herder’s Association are thanked for their valuable assistance and logistic support in data collection. The red deer, Silwood blue tit, and Soay sheep datasets were supported by UK NERC. Lundy sparrow data were supported by NERC, a Marie Skłodowska-Curie Action, and Volkswagenstiftung. The red squirrel project was funded by NSERC of Canada and the National Science Foundation. J.C.S. was supported by a grant from the Ministry of Economy and Competitivity, Spanish Research Council (CGL-2016-79568-C3-3-P). J.T., T.K., and M.G. were supported by the Research Council of Norway through its Centers for Excellence funding scheme, Project 223257. Research on fairy wrens has been supported by the Australian Research Council. The Northern wheatear and the flycatcher studies were supported by grants from the Swedish Research Council VR.en
dc.description.abstractTemporal variation in natural selection is predicted to strongly impact the evolution and demography of natural populations, with consequences for the rate of adaptation, evolution of plasticity, and extinction risk. Most of the theory underlying these predictions assumes a moving optimum phenotype, with predictions expressed in terms of the temporal variance and autocorrelation of this optimum. However, empirical studies seldom estimate patterns of fluctuations of an optimum phenotype, precluding further progress in connecting theory with observations. To bridge this gap, we assess the evidence for temporal variation in selection on breeding date by modeling a fitness function with a fluctuating optimum, across 39 populations of 21 wild animals, one of the largest compilations of long-term datasets with individual measurements of trait and fitness components. We find compelling evidence for fluctuations in the fitness function, causing temporal variation in the magnitude, but not the direction of selection. However, fluctuations of the optimum phenotype need not directly translate into variation in selection gradients, because their impact can be buffered by partial tracking of the optimum by the mean phenotype. Analyzing individuals that reproduce in consecutive years, we find that plastic changes track movements of the optimum phenotype across years, especially in bird species, reducing temporal variation in directional selection. This suggests that phenological plasticity has evolved to cope with fluctuations in the optimum, despite their currently modest contribution to variation in selection.
dc.relation.ispartofProceedings of the National Academy of Sciences of the United States of Americaen
dc.rightsCopyright © 2020 the Author(s). This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectFluctuating environmenten
dc.subjectFitness landscapeen
dc.subjectPhenotypic plasticityen
dc.subjectQH301 Biologyen
dc.subjectZA4450 Databasesen
dc.titleFluctuating optimum and temporally variable selection on breeding date in birds and mammalsen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Centre for Biological Diversityen
dc.description.statusPeer revieweden

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