University of Oulu

Jarmo Laitinen, Jari Oksanen, Eero Kaakinen, Tomáš Peterka, Asbjørn Moen, and Teemu Tahvanainen "Gradients, Species Richness and Communities in Eastern Finnish Sloping Fens," Annales Botanici Fennici 58(4-6), 289-312, (21 June 2021).

Gradients, species richness and communities in eastern Finnish sloping fens

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Author: Laitinen, Jarmo1; Oksanen, Jari2; Kaakinen, Eero3;
Organizations: 1Department of Ecology and Genetics, P.O. Box 3000, FI-90014 University of Oulu, Finland
2Finnish Museum of Natural History, P.O. Box 7, FI-00014 University of Helsinki, Finland
3Kurkelantie 1 D 38, FI-90230 Oulu, Finland
4Department of Botany and Zoology, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic
5Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
6Department of Environmental and Biological Sciences, Faculty of Science and Forestry, University of Eastern Finland, P.O. Box 111, FI-80101 Joensuu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.4 MB)
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Language: English
Published: Finnish Zoological and Botanical Publishing Board, 2021
Publish Date: 2022-02-24


In Scandinavia, three gradients (poor–rich, water table, margin–expanse) are considered in vegetation classification of mires. We re-analysed the data of Paavo Havas from 1961 on sloping fens in eastern Finland using NMDS ordination analysis, which also revealed a three-dimensional structure of the classic gradients, with the poor–rich gradient associated with pH. Water table level, and the unstable–stable water regime gradient were also of importance. Our analysis confirmed the interpretation by Havas but further stressed the role of the poor–rich gradient as the main direction of variation in sloping fens. Species richness increased with pH, and from mire expanse to margin vegetation, but decreased towards too wet or seasonally too dry conditions. Eastern Finnish sloping-fen plant communities resemble those in sloping fens elsewhere in Scandinavia, but also those in montane-subalpine-alpine fens in central and southeastern Europe.

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Series: Annales botanici Fennici
ISSN: 0003-3847
ISSN-E: 1797-2442
ISSN-L: 0003-3847
Volume: 58
Issue: 4-6
Pages: 289 - 312
DOI: 10.5735/085.058.0415
Type of Publication: A1 Journal article – refereed
Field of Science: 1183 Plant biology, microbiology, virology
Funding: Tomáš Peterka was supported by the Czech Science Foundation (GX19-28491X), Teemu Tahvanainen by the Academy of Finland (project 311655, SHIFTMIRE), and Jarmo Laitinen by the Ministry of Environment, Finland (project LETTO-PUTTE).
Copyright information: © Finnish Zoological and Botanical Publishing Board.