Electronic Supplementary Material

Table 1 Climate data from the stations closest to the Rondane area. The station Fokstua was moved in 1968 and the new station situated close to the old station is called Fokstugu. Normalized data from 1961–1990 (from Norwegian Meteorological Institute).

Station name / Latitude / Longitude / Elevation
[ma.s.l.] / Temperature [°C] / Precipitation [mm]
Jan / July / Ann / Jan / July / Ann
Atnsjøen / 61.8902 / 10.1417 / 749 / – / – / – / 29 / 78 / 524
Høvringen / 61.8902 / 9.4738 / 935 / – / – / – / 23 / 68 / 440
Folldalen / 62.13 / 9.98 / 710 / −10.2 / 11.3 / 0.7 / 17 / 70 / 365
Fokstua / 62.1167 / 9.2833 / 952 / −10.3 / 10 / −0.7 / 34 / 61 / 450
Fokstugu / 62.1145 / 9.2873 / 972 / −8.8 / 9.8 / −0.1 / 28 / 68 / 435

Jan – January, Ann – Annual

Fig. 1 Growing degree days (GDD), i.e. the number of days with an average temperature higher than 5°C, measured at station Fokstua and Fokstugu (data from the Norwegian Meteorological Institute).

Table 2 Species’ occurrence asthe number of plots sampled in the 1950s and in 2004. Plant nomenclature follows Lid and Lid (1994).

1950s / 2004 / 1950s / 2004
Agrostismertensii / 1 / 0 / Loiseleuriaprocumbens / 33 / 37
Alchemillaalpina / 2 / 3 / Luzulaarctica/arcuata/confusa / 3 / 5
Alchemilla glabra / 1 / 1 / Luzulamultiflora / 5 / 4
Angelica archangelica / 4 / 1 / Luzulaspicata / 9 / 5
Antennaria dioica / 4 / 0 / Lycopodium annotinum / 1 / 0
Anthoxanthumodoratumsubsp. alpinum / 15 / 13 / Miliumeffusum / 2 / 0
Arabis alpina / 3 / 0 / Minuartiabiflora / 1 / 1
Arctostaphylosalpina / 1 / 3 / Myosotis decumbens / 0 / 1
Athyriumdistentifolium / 1 / 0 / Myosotis sylvatica / 1 / 0
Avenellaflexuosa / 82 / 111 / Nardus stricta / 4 / 6
Bartsiaalpina / 0 / 1 / Omalothecanorvegica / 3 / 2
Betula nana / 55 / 72 / Omalothecasupina / 6 / 3
Betula pubescens / 1 / 3 / Oxyriadigyna / 2 / 1
Bistortavivipara / 14 / 4 / Pedicularislapponica / 13 / 2
Calamagrostis purpurea / 2 / 1 / Phleumalpinum / 4 / 2
Calluna vulgaris / 10 / 11 / Phyllodocecaerulea / 17 / 48
Carex bigelowii / 88 / 93 / Poaalpina / 2 / 1
Carex canescens/brunnescens / 17 / 9 / Poaflexuosa / 0 / 1
Carex lachenalii / 7 / 0 / Poa pratensis / 1 / 2
Carex nigra / 0 / 6 / Potentillacrantzii / 4 / 0
Cerastiumalpinum / 6 / 0 / Potentillapalustris / 2 / 0
Cerastiumcerastoides / 3 / 2 / Pyrola minor / 1 / 3
Coeloglossum viride / 0 / 1 / Ranunculusacris / 11 / 4
Deschampsiaalpina / 0 / 1 / Ranunculuspygmaeus / 0 / 1
Deschampsiacespitosa / 8 / 1 / Rhodiola rosea / 5 / 1
Diapensialapponica / 1 / 0 / Rubus chamaemorus / 20 / 17
Diphasiastrumalpinum / 6 / 11 / Rumexacetosa / 18 / 17
Dryopterisexpansa / 2 / 1 / Salix glauca / 3 / 9
Empetrum nigrum spp. hermaphroditum / 56 / 120 / Salix herbacea / 33 / 29
Epilobiumanagallidifolium / 0 / 1 / Salix lanata / 1 / 2
Epilobiumangustifolium / 8 / 2 / Salix lapponum / 20 / 7
Epilobiumspp. / 4 / 1 / Salix phylicifolia / 2 / 0
Equisetum arvense / 1 / 0 / Saussureaalpina / 5 / 0
Equisetum sylvaticum / 4 / 1 / Saxifragastellaris / 1 / 0
Erigeron uniflorus / 2 / 0 / Sibbaldiaprocumbens / 4 / 3
Eriophorumangustifolium / 3 / 0 / Silene acaulis / 3 / 3
Eriophorumscheuchzeri / 1 / 0 / Silene dioica / 6 / 3
Eriophorumvaginatum / 3 / 4 / Solidagovirgaurea / 24 / 12
Euphrasiafrigida / 3 / 0 / Stellaria borealis / 4 / 2
Festuca ovina / 25 / 9 / Stellaria media / 1 / 0
Festuca vivipara / 0 / 2 / Stellarianemorum / 2 / 0
Geranium sylvaticum / 3 / 3 / Taraxacumspp. / 4 / 3
Geumrivale / 1 / 0 / Trientaliseuropaea / 15 / 11
Gymnocarpiumdryopteris / 3 / 2 / Trisetumspicatum / 2 / 0
Harrimanellahypnoides / 3 / 3 / Vacciniummyrtillus / 28 / 64
Hieraciumalpinumcoll. / 19 / 18 / Vacciniumuliginosum / 25 / 36
Huperziaselago / 5 / 9 / Vacciniumvitis-idaea / 48 / 82
Juncustrifidus / 32 / 73 / Veronica alpina / 3 / 1
Juniperus communis / 2 / 4 / Viola biflora / 1 / 0
Leontodonautumnalis / 1 / 0 / Viscariaalpina / 1 / 0

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