Table 3.
Change in species cover between the first and last relevé
| Species | N | Diff | T | p |
|---|---|---|---|---|
| Rosa pendulina | 8 | −1.17 | −2.47 | .043 |
| Ranunculus platanifolius | 3 | −0.83 | −5.00 | .038 |
| Ribes alpinum | 12 | −0.72 | −1.91 | .083 |
| Prunus avium | 54 | −0.57 | −1.99 | .052 |
| Crataegus monogyna | 11 | −0.54 | −2.21 | .052 |
| Potentilla erecta | 20 | −0.52 | −2.21 | .040 |
| Lathyrus montanus | 13 | −0.46 | −3.25 | .007 |
| Gymnocarpium dryopteris | 13 | −0.43 | −2.11 | .056 |
| Hippocrepis comosa | 3 | −0.41 | −8.66 | .013 |
| Dryopteris carthusiana | 74 | −0.37 | −1.71 | .091 |
| Polypodium vulgare | 8 | −0.21 | −2.34 | .052 |
| Athyrium distentifolium | 5 | 0.28 | 3.33 | .029 |
| Anemone nemorosa | 47 | 6.75 | 2.82 | .007 |
Only relevés made at intervals of at least 7 years were used. N = number of occurrences (i.e., number of plots with this species in one or both years), Diff = MEAN ([%cover in last relevé]—[%cover in first relevé]), T = t‐value of difference, p = p‐value of difference. The species given are those for which N > 2 and p < .1, in the order of increasing values for Diff.