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Title: | Old Juniper Troll stand - The oldest shrub population from Scandinavia | ||||||||||
Author: | Lehejček, Jiří; Roman, Matěj; Lexa, Martin; Aspholm, Paul Eric; Mašek, Jiří | ||||||||||
Document type: | Peer-reviewed article (English) | ||||||||||
Source document: | Journal of Forest Science. 2024, vol. 70, issue 4, p. 176-184 | ||||||||||
ISSN: | 1212-4834 (Sherpa/RoMEO, JCR) | ||||||||||
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DOI: | https://doi.org/10.17221/118/2023-JFS | ||||||||||
Abstract: | Old plant communities are of utmost importance for nature conservation, carbon sequestration, as well as gene pool maintenance. Shrub populations occurring in extreme environments beyond abiotic tree-lines provide diverse ecosystem services and have potential as proxy archives because they often inhabit areas with scarce and short instrumental records. We provide dendrochronological insight into one such population made up of prostrate Juniperus communis shrubs in the northern Scandinavian tundra (Norway), growing on a competition-free boulder field. We dated and provided a growth chronology of the oldest living shrub population (190 ± 148 years) from Scandinavia with the oldest individual being 683 years old. This is a conservative estimate, as shrubs in extreme environments do not form even a single row of cells in some years. The cross-dating issues of poorly growing shrubs do not fully allow to rely on climate sensitivity of the juniper population studied, although the species' potential for dendroclimatological reconstructions is generally considered high, also because the common juniper is an abundant woody species distributed globally. Old populations present an important gene source in plant recruitment, particularly in the context of the present environmental change. | ||||||||||
Full text: | https://jfs.agriculturejournals.cz/artkey/jfs-202404-0002_old-juniper-troll-stand-8211-the-oldest-shrub-population-from-scandinavia.php | ||||||||||
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