Changes Versus Homeostasis in Alpine and Sub-Alpine Vegetation Over Three Decades in the Sub-Arctic

Henrik Hedenas, Bengt A. Carlsson, Urban Emanuelsson, Alistair D. Headley, Christer Jonasson, Brita M. Svensson, Terry V. Callaghan

Forskningsoutput: TidskriftsbidragArtikelPeer review

9 Citeringar (Scopus)

Sammanfattning

Plant species distributions are expected to shift and diversity is expected to decline as a result of global climate change, particularly in the Arctic where climate warming is amplified. We have recorded the changes in richness and abundance of vascular plants at Abisko, sub-Arctic Sweden, by re-sampling five studies consisting of seven datasets; one in the mountain birch forest and six at open sites. The oldest study was initiated in 1977–1979 and the latest in 1992. Total species number increased at all sites except for the birch forest site where richness decreased. We found no general pattern in how composition of vascular plants has changed over time. Three species, Calamagrostis lapponica, Carex vaginata and Salix reticulata, showed an overall increase in cover/frequency, while two Equisetum taxa decreased. Instead, we showed that the magnitude and direction of changes in species richness and composition differ among sites.

OriginalspråkEngelska
Sidor (från-till)187-196
Antal sidor9
TidskriftAmbio
Volym41
DOI
StatusPublicerad - 2012
Externt publiceradJa

Nationell ämneskategori

  • Ekologi (10611)
  • Klimatforskning (10501)

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