Table 2 Total green cover mid-season and at the end of the season and the contribution of the most abundant species (mean ± SE)
From: Growth of alpine grassland will start and stop earlier under climate warming
+4 m | +2 m | Field plots | All groups | |||||
|---|---|---|---|---|---|---|---|---|
Mid-season | End-season | Mid-season | End-season | Mid-season | End-season | Δ(end - mid) | P value | |
Total green cover (%) | 60.8 ± 2.8 | 13.3 ± 0.8 | 58.6 ± 4.2 | 11.0 ± 1.2 | 69.6 ± 2.6 | 8.1 ± 0.4 | −52.2 ± 2.2 | <0.001 |
Relative contribution (% of total) | ||||||||
Anthoxanthum alpinum Á. & D. Löve | 8.4 ± 2.1 | 18.8 ± 4.6 | 10.2 ± 3.7 | 14.9 ± 3.9 | 3.7 ± 0.9 | 2.2 ± 0.2 | 4.6 ± 2.9 | 0.130 |
Carex curvula All. s.str. | 28.3 ± 3.7 | 1.4 ± 0.4 | 37.1 ± 5.0 | 3.8 ± 1.8 | 31.6 ± 1.3 | 12.7 ± 6.0 | −26.4 ± 3.0 | <0.001 |
Helictotrichon versicolor Vill. | 4.0 ± 1.5 | 10.0 ± 3.5 | 4.1 ± 2.3 | 8.1 ± 4.3 | 10.2 ± 3.3 | 21.5 ± 7.1 | 7.1 ± 3.0 | 0.020 |
Leontodon helveticus Mérat | 12.6 ± 2.6 | 8.3 ± 2.4 | 12.3 ± 1.6 | 11.0 ± 1.9 | 12.0 ± 2.2 | 3.7 ± 1.0 | −4.6 ± 1.8 | 0.010 |
Ligusticum mutellina (L.) Crantz | 7.7 ± 2.1 | 0.0 ± 0.0 | 5.9 ± 1.6 | 0.0 ± 0.0 | 5.5 ± 3.0 | 0.0 ± 0.0 | −6.3 ± 1.3 | <0.001 |
Potentilla aurea L. | 11.9 ± 4.9 | 14.0 ± 4.3 | 5.2 ± 2.7 | 9.1 ± 3.8 | 9.1 ± 4.8 | 13.4 ± 5.7 | 3.4 ± 3.6 | 0.350 |
Soldanella pusilla Baumg. | 1.7 ± 0.1 | 7.8 ± 0.6 | 2.4 ± 0.4 | 10.1 ± 1.4 | 1.2 ± 0.3 | 9.6 ± 2.4 | 7.4 ± 0.8 | <0.001 |
Other species* | 25.5 ± 3.6 | 39.7 ± 6.1 | 22.8 ± 5.4 | 43.0 ± 7.4 | 26.8 ± 4.9 | 37.0 ± 4.5 | 14.9 ± 4.8 | 0.004 |
Graminoids | 45.7 ± 4.4 | 44.2 ± 5.6 | 61.8 ± 3.0 | 51.2 ± 6.1 | 47.2 ± 2.7 | 39.0 ± 5.2 | −6.8 ± 4.1 | 0.109 |
Forbs | 54.3 ± 4.4 | 55.8 ± 5.6 | 38.2 ± 3.0 | 48.9 ± 6.1 | 52.8 ± 2.7 | 61.0 ± 5.2 | 6.8 ± 4.1 | 0.107 |
