Ambio

, Volume 46, Issue 2, pp 227–236

Grazing and abandonment determine different tree dynamics in wood-pastures

  • Anna Oldén
  • Atte Komonen
  • Kaisa Tervonen
  • Panu Halme
Report
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Abstract

Wood-pastures are threatened biotopes in which trees and livestock grazing maintain high conservation values. However, browsing may threaten tree regeneration, whereas abandonment leads to tree encroachment. We studied the regeneration of trees in a grazed and abandoned boreal wood-pastures. In grazed sites, the density of young spruces (Picea abies) was high, while the density of young birches (Betula spp.) was very low. Sprucification can be prevented only by removing spruces. The number of young birches and pines (Pinus sylvestris) was correlated with the number of junipers (Juniperus communis), probably because thorny junipers protect palatable seedlings from browsing. In abandoned sites, deciduous trees and spruces regenerated abundantly. In the long term, both grazing and abandonment lead to changes in tree species compositions and low diversity wood-pastures. Landscape scale planning and disturbance dynamics are needed for the creation of new wood-pastures and the maintenance of all pasture types within the landscape.

Keywords

Browsing Forest pasture Herbivores Regeneration Silvopasture Wooded pasture 

Supplementary material

13280_2016_821_MOESM1_ESM.pdf (639 kb)
Supplementary material 1 (PDF 538 kb)

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Copyright information

© Royal Swedish Academy of Sciences 2016

Authors and Affiliations

  • Anna Oldén
    • 1
  • Atte Komonen
    • 1
  • Kaisa Tervonen
    • 1
  • Panu Halme
    • 2
  1. 1.Department of Biological and Environmental ScienceUniversity of JyvaskylaJyväskyläFinland
  2. 2.University of Jyvaskyla, Jyvaskyla University MuseumJyväskyläFinland

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