Impact of free-range pigs on mountain pastures in the Swiss Jura

Details

Serval ID
serval:BIB_9674A182AC65
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Impact of free-range pigs on mountain pastures in the Swiss Jura
Journal
Applied Vegetation Science
Author(s)
Vittoz P., Hainard P.
ISSN
1402-2001
Publication state
Published
Issued date
2002
Peer-reviewed
Oui
Volume
5
Number
2
Pages
247-254
Language
english
Abstract
The consequences of foraging by free-range pigs on the vegetation of mountain pastures was investigated. 25 pigs (15 week-old, mean weight 50 kg) were enclosed from June to mid-September in a 2 ha-enclosure in Jura Mountains (Switzerland), fed with a mixture of lactoserum and cereals. The enclosure contained five different plant communities. Eutrophic pastures on deep soil were strongly overturned, but the recolonisation was quick and dominated by the original species. Mesotrophic pastures were less damaged on stony soil but completely destroyed on deep soil, and the recovery was slow, characterised by a shift of plant species in a more eutrophic direction. Four years were not sufficient for complete recovery. Oligotrophic calcareous pastures on shallow stony soil were not damaged. Extensive breeding of pigs in mountain pastures might be harmful to plant species and vegetation, and ought to be restricted to the less sensitive plant communities, with a rotation on two to three different sites.
Keywords
disturbance, management, permanent plot, pig breeding, plant conservation, recolonization, rooting
Web of science
Create date
10/12/2012 9:34
Last modification date
20/08/2019 14:58
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