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dc.contributor.authorWam, Hilde Karine
dc.contributor.authorStolter, Caroline
dc.contributor.authorNybakken, Line
dc.date.accessioned2018-03-13T13:15:13Z
dc.date.available2018-03-13T13:15:13Z
dc.date.created2017-11-02T14:05:22Z
dc.date.issued2017-09
dc.identifier.citationJournal of Chemical Ecology. 2017, 43 (9), 920-928.nb_NO
dc.identifier.issn0098-0331
dc.identifier.urihttp://hdl.handle.net/11250/2490323
dc.description.abstractThe composition of plant secondary metabolites (PSMs) extensively impacts ecosystem functioning. It is vital that we understand temporal patterns in the plants’ allocation of resources to PSMs, particularly those influenced by human activity. Existing data are insufficient in the long-term perspective of perennial plants (age or ontogeny). We analysed phenolic concentrations in foliage from birch (Betula pubescens Ehr.) considered to be undamaged and growing on 5, 10 and 15 years old clear-cuts in two boreal forest landscapes in Norway, sampled at the peak of the growing season. In sum, low molecular weight phenolic concentrations decreased with age. Apart from one apigenin glycoside, the low molecular weight phenolics co-varied similarly at all ages, suggesting a lack of temporal compound-specific prioritisation of this group. In contrast, the concentration of MeOH-soluble condensed tannins increased with age. The compositional shift fits well with several hypotheses that may provide proximate explanations for age patterns in PSM allocations, including both resource constraints and external pressures. Regardless of these explanations, our study adds an important perennial perspective (plant age) to temporal PSM patterns already well-known in boreal plant phenology (foliage age).nb_NO
dc.language.isoengnb_NO
dc.publisherSpringer USnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectApparencynb_NO
dc.subjectAssartnb_NO
dc.subjectC: N rationb_NO
dc.subjectClearcutnb_NO
dc.subjectDefencenb_NO
dc.subjectHerbivorynb_NO
dc.subjectPlant secondary metabolitesnb_NO
dc.subjectPlant: Animalnb_NO
dc.titleCompositional Changes in Foliage Phenolics with Plant Age, a Natural Experiment in Boreal Forestsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.rights.holder© The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.nb_NO
dc.source.pagenumber920-928nb_NO
dc.source.volume43nb_NO
dc.source.journalJournal of Chemical Ecologynb_NO
dc.source.issue9nb_NO
dc.identifier.doi10.1007/s10886-017-0881-5
dc.identifier.cristin1510342
dc.relation.projectNorges forskningsråd: 215647nb_NO
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal