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dc.contributor.authorNystuen, Kristin Odden
dc.contributor.authorSundsdal, Kristine
dc.contributor.authorOpedal, Øystein Hjorthol
dc.contributor.authorHolien, Håkon
dc.contributor.authorStrimbeck, Richard
dc.contributor.authorGraae, Bente Jessen
dc.date.accessioned2020-04-07T13:10:57Z
dc.date.available2020-04-07T13:10:57Z
dc.date.created2019-11-12T11:36:08Z
dc.date.issued2019
dc.identifier.citationJournal of Vegetation Science. 2019, 30 (5), 868-880.en_US
dc.identifier.issn1100-9233
dc.identifier.urihttps://hdl.handle.net/11250/2650669
dc.description.abstractQuestions How do mat thickness, physical structure and allelopathic properties of terricolous mat‐forming lichens affect recruitment of vascular plants in dwarf‐shrub and lichen heath vegetation? Location The mountains of Dovrefjell, central Norway. Methods In autumn, seeds of ten vascular plant species were collected and sown in a common garden experiment with mats of six lichen species and bare soil controls as experimental treatments. We recorded growing season soil temperature and moisture, and seedling recruitment and growth after one year. The effect of lichen secondary compounds on germination was tested in a growth chamber experiment and compared to the lichen–plant interactions detected under field conditions. Results The lichen mats buffered extreme soil temperatures and soil drying in dry weather, with soils below the thickest mats (Cladonia stellaris and C. rangiferina) experiencing the lowest temperature fluctuations. Seedling recruitment and seedling growth in the field and seed germination in the lab were species‐specific. Seedling recruitment rates were overall higher within lichen mats than on bare soil, but the c. 6.5‐cm‐thick mats of C. stellaris reduced recruitment of many species. The lab experiment suggested no overall strong effect of lichen allelopathy on seed germination, and effects on seed germination were only moderately correlated with the lichen–plant interactions observed for seedling recruitment in the field. Conclusions In harsh environments like alpine dwarf‐shrub and lichen heaths, the presence of lichens and the resulting amelioration of the microclimate seem more important for vascular plant recruitment than are allelopathic effects often reported in lab experiments. We might therefore expect most terricolous lichens, depending on the plant species in focus, to facilitate rather than hamper the early stages of plant recruitment into lichen‐dominated arctic‐alpine heath vegetation.en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.titleLichens facilitate seedling recruitment in alpine heathen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.source.pagenumber868-880en_US
dc.source.volume30en_US
dc.source.journalJournal of Vegetation Scienceen_US
dc.source.issue5en_US
dc.identifier.doi10.1111/jvs.12773
dc.identifier.cristin1746432
dc.description.localcodeLocked until 28.5.2020 due to copyright restrictions. This is the peer reviewed version of an article, which has been published in final form at [https://doi.org/10.1111/jvs.12773]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.en_US
cristin.unitcode194,66,10,0
cristin.unitnameInstitutt for biologi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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