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Long-term effects of scrub clearance and litter removal on the re-establishment of dry alvar grassland species
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Plant Ecology and Evolution.
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2012 (English)In: Annales Botanici Fennici, ISSN 0003-3847, Vol. 49, no 1-2, 21-30 p.Article in journal (Refereed) Published
Abstract [en]

Many characteristic dry alvar grassland species disappear after cessation of livestock grazing as a result of encroachment by Juniperus communis. We studied the re-establishment of these species after scrub clearance with and without the removal of the layer of litter and mosses in long-term (14 years) permanent plots. Most of the species belonging to the community species pool of dry alvar grassland species before clearance were found in permanent plots between 2 and 14 years after the clearance. A large part originated from vegetative spread of already occurring species in the established vegetation in the surroundings. Only a small part of the long-term persistent soil seed bank resulted in the re-establishment of alvar species. There was no significant difference in the traits soil seed bank, seed weight and long-distance dispersal by wind, dung or fur of animals of established and non-established species. Removal of litter and mosses positively affected the re-establishment of alvar species.

Place, publisher, year, edition, pages
2012. Vol. 49, no 1-2, 21-30 p.
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-174721ISI: 000303272200004OAI: oai:DiVA.org:uu-174721DiVA: diva2:528676
Available from: 2012-05-28 Created: 2012-05-25 Last updated: 2012-05-28Bibliographically approved

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Rosén, Eje
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Plant Ecology and Evolution
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