{"dcterms:modified":"2026-02-04","dcterms:creator":"DataverseNO","@type":"ore:ResourceMap","schema:additionalType":"Dataverse OREMap Format v1.0.1","dvcore:generatedBy":{"@type":"schema:SoftwareApplication","schema:name":"Dataverse","schema:version":"6.6","schema:url":"https://github.com/iqss/dataverse"},"@id":"https://dataverse.no/api/datasets/export?exporter=OAI_ORE&persistentId=https://doi.org/10.18710/VYQFPK","ore:describes":{"citation:keyword":[{"citation:keywordValue":"biodiversity change"},{"citation:keywordValue":"vegetation resurvey"},{"citation:keywordValue":"heathlands"},{"citation:keywordValue":"tundra"},{"citation:keywordValue":"Empetrum nigrum"},{"citation:keywordValue":"crowberry"},{"citation:keywordValue":"biotic homogenisation"}],"author":[{"citation:authorName":"Maliniemi, Tuija","citation:authorAffiliation":"University of Oulu","authorIdentifierScheme":"ORCID","authorIdentifier":"0000-0003-1218-6554"},{"citation:authorName":"Kiilunen, Petteri","citation:authorAffiliation":"University of Oulu","authorIdentifierScheme":"ORCID","authorIdentifier":"0000-0002-1326-2291"},{"citation:authorName":"Bråthen, Kari Anne","citation:authorAffiliation":"UiT The Arctic University of Norway","authorIdentifierScheme":"ORCID","authorIdentifier":"0000-0003-0942-1074"},{"citation:authorName":"Kapfer, Jutta","citation:authorAffiliation":"Norwegian Institute of Bioeconomy Research","authorIdentifierScheme":"ORCID","authorIdentifier":"0000-0002-8077-8917"},{"citation:authorName":"Bockelie Rosendal, Torunn","citation:authorAffiliation":"UiT The Arctic University of Norway"},{"citation:authorName":"Grytnes, John-Arvid","citation:authorAffiliation":"Norwegian University of Life Sciences","authorIdentifierScheme":"ORCID","authorIdentifier":"0000-0002-6365-9676"},{"citation:authorName":"Saccone, Patrick","citation:authorAffiliation":"Institute of Botany of the Czech Academy of Sciences","authorIdentifierScheme":"ORCID","authorIdentifier":"0000-0001-8820-593X"},{"citation:authorName":"Virtanen, Risto","citation:authorAffiliation":"University of Oulu","authorIdentifierScheme":"ORCID","authorIdentifier":"0000-0002-8295-8217"}],"grantNumber":[{"citation:grantNumberAgency":"Research Council of Finland","citation:grantNumberValue":"259072"},{"citation:grantNumberAgency":"Norwegian Research Council","citation:grantNumberValue":"302749"},{"citation:grantNumberAgency":"Foundations Post Doc pool","citation:grantNumberValue":"Finnish Cultural Foundation"},{"citation:grantNumberAgency":"Research Council of Finland","citation:grantNumberValue":"Profi6, 336449, Biodiverse Anthropocenes"},{"citation:grantNumberAgency":"Kvantum Institute","citation:grantNumberValue":"University of Oulu"},{"citation:grantNumberAgency":"INTERACT","citation:grantNumberValue":"262693, 730938"}],"citation:datasetContact":[{"citation:datasetContactName":"Maliniemi, Tuija","citation:datasetContactAffiliation":"University of Oulu","citation:datasetContactEmail":"tuija.maliniemi@oulu.fi"},{"citation:datasetContactName":"Bråthen, Kari Anne","citation:datasetContactAffiliation":"UiT The Arctic University of Norway","citation:datasetContactEmail":"kari.brathen@uit.no"}],"publication":{"publicationCitation":"Maliniemi, T., Kiilunen, P., Bråthen, K.A., Kapfer, J., Bockelie Rosendal, T., Grytnes, J.-A., Saccone, P. & Virtanen, R. (2025). Long-term homogenization of Fennoscandian heathland and tundra vegetation is connected to the expansion of an allelopathic dwarf shrub. Ecography. https://doi.org/10.1002/ecog.07921","publicationIDType":"doi","publicationIDNumber":"10.1002/ecog.07921","publicationURL":"https://doi.org/10.1002/ecog.07921"},"geospatial:geographicCoverage":[{"geospatial:country":"Finland"},{"geospatial:country":"Norway"}],"contributor":[{"citation:contributorType":"Data Collector","citation:contributorName":"Tuija Maliniemi"},{"citation:contributorType":"Data Curator","citation:contributorName":"Tuija Maliniemi"},{"citation:contributorType":"Other","citation:contributorName":"Petteri Kiilunen"},{"citation:contributorType":"Data Collector","citation:contributorName":"Kari Anne Bråthen"},{"citation:contributorType":"Data Collector","citation:contributorName":"Jutta Kapfer"},{"citation:contributorType":"Data Collector","citation:contributorName":"Torunn Bockelie Rosendal"},{"citation:contributorType":"Data Collector","citation:contributorName":"Risto Virtanen"}],"citation:dsDescription":{"citation:dsDescriptionValue":"This dataset contain plant community data (including vascular plants, bryophytes and lichens) from 275 vegetation plots from northern Fennoscandia (northern Finland and northern Norway). Values for each species are percentage cover estimates from 2 x 2 meter plot. Each plot has been surveyed twice, i.e., species have old and new percentage cover from 1964-75 and from 2013-23.\n\nWe analyzed temporal changes in community composition and diversity across the study area and in different biogeographic zones, continentality-humidity classes and habitat types. We found a strong homogenization trend across the study area, with plant communities becoming more similar in composition over the decades when all taxa were treated together. The observed homogenization was driven especially by the increased similarity of vascular plant and lichen communities and was largely independent of biogeographic zones or continentality-humidity gradient. Homogenization was particularly associated with the drastic encroachment of the evergreen dwarf shrub Empetrum nigrum in habitat types originally dominated by other species, and with the decrease in lichen cover. In general, our findings suggest that Fennoscandian heathland and tundra vegetation is transforming towards a more homogeneous evergreen dwarf shrub-dominated system, which may threaten ecosystem multifunctionality. Our results highlight the importance of exploring biodiversity among different metrics and growth forms to understand the overall changes in heathland and tundra biodiversity.","citation:dsDescriptionDate":"2025-08-01"},"citation:dateOfCollection":[{"citation:dateOfCollectionStart":"1964","citation:dateOfCollectionEnd":"1975"},{"citation:dateOfCollectionStart":"2013","citation:dateOfCollectionEnd":"2023"}],"geospatial:geographicBoundingBox":{"geospatial:westLongitude":"17","geospatial:eastLongitude":"31","geospatial:northLatitude":"71","geospatial:southLatitude":"66"},"citation:distributor":{"citation:distributorName":"UiT The Arctic University of Norway","citation:distributorAbbreviation":"UiT","citation:distributorURL":"https://dataverse.no/dataverse/uit"},"citation:producer":[{"citation:producerName":"University of Oulu","citation:producerURL":"https://www.oulu.fi/en"},{"citation:producerName":"UiT The Arctic University of Norway","citation:producerURL":"https://en.uit.no/"}],"software":{"citation:softwareName":"R statistical environment","citation:softwareVersion":"4.4.1"},"subject":"Earth and Environmental Sciences","dataSources":"Data from the original survey were extracted from Haapasaari, M. 1988. The oligotrophic heath vegetation of northern Fennoscandia and its zonation. - In: Acta Botanica Fennica 135. Finnish Botanical Publishing Board.","relatedDatasets":"A  third survey round and monitoring is ongoing for this dataset (not included in this dataset or in the related publication). 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