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dc.contributor.authorGya, Ragnhild
dc.contributor.authorGeange, Sonya Rita
dc.contributor.authorLynn, Joshua
dc.contributor.authorTöpper, Joachim Paul
dc.contributor.authorWallevik, Øystein
dc.contributor.authorZernichow, Camilla
dc.contributor.authorVandvik, Vigdis
dc.date.accessioned2023-08-18T11:57:11Z
dc.date.available2023-08-18T11:57:11Z
dc.date.created2020-09-28T17:41:19Z
dc.date.issued2023
dc.identifier.citationEcology and Evolution. 2023, 13:e9772 (2), 1-19.en_US
dc.identifier.issn2045-7758
dc.identifier.urihttps://hdl.handle.net/11250/3084825
dc.description.abstractSeed regeneration is a critical stage in the life histories of plants, affecting species' abilities to maintain local populations, evolve, and disperse to new sites. In this study, we test for local adaptations to drought in germination and seedling growth of two alpine forbs with contrasting habitat preferences: the alpine generalist Veronica alpina and the snowbed specialist Sibbaldia procumbens. We sampled seeds of each species from four populations spanning a precipitation gradient from 1200 to 3400 mm/year in western Norway. In a growth chamber experiment, we germinated seeds from each population at 10 different water potentials under controlled light and temperature conditions. Drought led to lower germination percentage in both species, and additionally, slower germination, and more investment in roots for V. alpina. These responses varied along the precipitation gradient. Seeds from the driest populations had higher germination percentage, shorter time to germination, and higher investments in the roots under drought conditions than the seeds from the wettest populations – suggesting local adaption to drought. The snowbed specialist, S. procumbens, had lower germination percentages under drought, but otherwise did not respond to drought in ways that indicate physiological or morphological adaptions to drought. S. procumbens germination also did not vary systematically with precipitation of the source site, but heavier-seeded populations germinated to higher rates and tolerated drought better. Our study is the first to test drought effects on seed regeneration in alpine plants populations from high-precipitation regions. We found evidence that germination and seedling traits may show adaptation to drought even in populations from wet habitats. Our results also indicate that alpine generalists might be more adapted to drought and show more local adaptations in drought responses than snowbed specialists.en_US
dc.description.abstractA test of local adaptation to drought in germination and seedling traits in populations of two alpine forbs across a 2000 mm/year precipitation gradienten_US
dc.language.isoengen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectbiomass allocationen_US
dc.subjectpolyethylene glycolen_US
dc.subjectseed massen_US
dc.subjecttime to 50% germinationen_US
dc.subjecttime to max germinationen_US
dc.titleA test of local adaptation to drought in germination and seedling traits in populations of two alpine forbs across a 2000 mm/year precipitation gradienten_US
dc.title.alternativeA test of local adaptation to drought in germination and seedling traits in populations of two alpine forbs across a 2000 mm/year precipitation gradienten_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2023 The Authorsen_US
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470en_US
dc.source.pagenumber1-19en_US
dc.source.volume13en_US
dc.source.journalEcology and Evolutionen_US
dc.source.issue2en_US
dc.identifier.doi10.1002/ece3.9772
dc.identifier.cristin1834506
dc.relation.projectNorges forskningsråd: 274712en_US
dc.source.articlenumbere9772en_US
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