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1 December 2002 Species introduction through seeds from an old, species-rich hay meadow: Effects of management
M. H. Losvik, I. Austad
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A local seed mixture from plants growing in a species-rich, traditionally managed hay meadow site at Varaldsøy, Hardanger, western Norway, where many endangered hay meadow species of the region are growing, was sown in a newly harrowed experimental field 1 km from the source meadow in order to increase the habitat area for the endangered species. Of 25 endangered species recorded in the source meadow, only one (Holcus lanatus) was present in the target meadow. After sowing, 16 of the endangered species in addition to Holcus lanatus were recorded in the new site. Six species were only present in sown plots and seven others were more frequent there, while three species might have arrived by chance or originated from the seed bank. Replacing the traditional management regime, including one late cut and grazing in spring and in autumn, with three cutting times and the creation of gaps in the sward, resulted in a higher number of endangered species in plots which were only cut, possibly because the grazing was too intensive in the small enclosures.

Nomenclature: Lid & Lid (1994).

M. H. Losvik and I. Austad "Species introduction through seeds from an old, species-rich hay meadow: Effects of management," Applied Vegetation Science 5(2), 185-194, (1 December 2002).[0185:SITSFA]2.0.CO;2
Received: 7 May 2001; Accepted: 1 December 2001; Published: 1 December 2002

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Local seed
Seed mixture
semi-natural grassland
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