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dc.contributor.authorAuld, Stuarten_UK
dc.contributor.authorBrand, Juneen_UK
dc.description.abstractEpidemics are engines for host-parasite coevolution, where parasite adaptation to hosts drives reciprocal adaptation in host populations. A key challenge is to understand whether parasite adaptation and any underlying evolution and coevolution is repeatable across ecologically realistic populations that experience different environmental conditions, or if each population follows a completely unique evolutionary path. We established twenty replicate pond populations comprising an identical suite of genotypes of crustacean host, Daphnia magna, and inoculum of their parasite, Pasteuria ramosa. Using a time-shift experiment, we compared parasite infection traits before and after epidemics and linked patterns of parasite evolution with shifts in host genotype frequencies. Parasite adaptation to the sympatric suite of host genotypes came at a cost of poorer performance on foreign genotypes across populations and environments. However, this consistent pattern of parasite adaptation was driven by different types of frequency-dependent selection that was contingent on an ecologically relevant environmental treatment (whether or not there was physical mixing of water within ponds). In unmixed ponds, large epidemics drove rapid and strong host-parasite coevolution. In mixed ponds, epidemics were smaller and host evolution was driven mainly by the mixing treatment itself; here, host evolution and parasite evolution were clear, but coevolution was absent. Population mixing breaks an otherwise robust coevolutionary cycle. These findings advance our understanding of the repeatability of (co)evolution across noisy, ecologically realistic populations.en_UK
dc.relationAuld S & Brand J (2017) Environmental variation causes different (co)evolutionary routes to the same adaptive destination across parasite populations [Adaptation and coevolution across environments]. Evolution Letters, 1 (5), pp. 245-254.
dc.rights© 2017 The Author(s). Evolution Letters published by Wiley Periodicals, Inc. on behalf of Society for the Study of Evolution (SSE) and European Society for Evolutionary Biology (ESEB). This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en_UK
dc.subjectexperimental evolutionen_UK
dc.subjecthost-parasite interactionsen_UK
dc.titleEnvironmental variation causes different (co)evolutionary routes to the same adaptive destination across parasite populationsen_UK
dc.title.alternativeAdaptation and coevolution across environmentsen_UK
dc.typeJournal Articleen_UK
dc.citation.jtitleEvolution Lettersen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.funderNatural Environment Research Councilen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.relation.funderprojectPast epidemics as predictors of disease evolution over space and timeen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorAuld, Stuart|0000-0001-6691-7442en_UK
local.rioxx.authorBrand, June|en_UK
local.rioxx.projectNE/L011549/1|Natural Environment Research Council|
local.rioxx.filenameAuld_et_al-2017-Evolution_Letters (1).pdfen_UK
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