jvs1395-sup-0001-FigureS1.docWord document83KFigure S1. Last century climate chart for Jan Mayen.
jvs1395-sup-0002-FigureS2.docWord document25KFigure S2. Changes in species co-occurrence in plots containing each of the species found (a) in Lid's synedria from 1930 to 2010 and (b) at Mt. Beerenberg from 1991 to 2010.
jvs1395-sup-0003-TableS1-S2-FigS1-S2.docWord document270KTable S1. Geographic positions of the meteorological station number 99950 on Jan Mayen since 1921 (Steffensen 1969).
jvs1395-sup-0004-TableS2.docWord document25KTable S2. Average changes in species co-occurrences.

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