Table 2 Data dictionary for vascular plant community composition (dataset i-a) from an ITEX warming experiment in Endalen, Svalbard.
Variable name | Description | Variable type | Variable range or levels | Units | How measured |
|---|---|---|---|---|---|
Year | Year of sampling | numeric | 2003–2015 | yyyy | recorded |
Site | Site as the habitat; DH = Dryas heath, CH = Cassiope heath, SB = snowbed | categorical | CH - SB | defined | |
Treatment | Warming treatment; CTL = ambient conditions, OTC = warmed by Open top chamber (OTC) | categorical | CTL - OTC | defined | |
PlotID | Unique ID as the combination of Site and number; SB-1 | categorical | CH-1 - SB-9 | defined | |
Taxon | Species name including genus and species | categorical | alectoria nigricans - unidentified pleurocarp moss sp | identified | |
Abundance | Estimated species abundance | numeric | 1–191 | recorded | |
FunctionalGroup | Plant functional group; graminoid, forb, dshrub (deciduous shrub), eshrub (evergreen shrub), moss, liverwort, lichen and fungi | categorical | dshrub - moss | recorded | |
Elevation_m | Elevation of site | numeric | 80–80 | m a.s.l. | recorded |
Latitude_N | Latitude of site | numeric | 78.183 - 78.183 | Degree north | recorded |
Longitude_E | Longitude of site | numeric | 15.75 - 15.75 | Degree east | recorded |
Flag | Flagging problems in the data | categorical | Iced - Iced | recorded |
