. 2008 Oct 22;8:17. doi: 10.1186/1472-6785-8-17

Table 3.

Mean changes in biomass (g/m²) of major plant functional groups in low shrub tundra, Kangerlussuaq, Greenland

		δ_p		δ_s		δ_c

Functional groups	Treatment combinations	Mean change (g/m²)	95% CI [min, max]	Mean change (g/m²)	95% CI [min, max]	Mean change (g/m²)	95% CI [min, max]
B. nana leaf	Ungrazed Ambient	-10.03	[-28.86, 8.80]	74.85^a	[46.32, 103.38]	35.03^a	[2.14, 67.91]

	Ungrazed Warmed	6.69	[-12.14, 25.52]	56.61^a	[28.08, 85.13]	35.75^a	[2.87, 68.64]

	Grazed Ambient	14.63	[-2.86, 32.11]	31.55^a	[5.06, 58.03]	20.02	[-10.51, 50.55]

	Grazed Warmed	0.96	[-16.50, 18.47]	46.37^a	[19.88, 72.86]	9.49	[-21.04, 40.02]

B. nana stem	Ungrazed Ambient	214.67^a	[124.71, 304.54]	103.41	[-34.61, 241.42]	159.29^a	[55.84, 262.75]

	Ungrazed Warmed	264.98^a	[175.07, 354.89]	86.81	[-51.21, 224.82]	142.69^a	[39.24, 246.15]

	Grazed Ambient	163.75^a	[80.28, 274.22]	102.722	[-25.41, 230.85]	165.45^a	[69.41, 261.50]

	Grazed Warmed	168.97^a	[85.49, 252.44]	69.05	[-59.08, 197.18]	132.25^a	[36.21, 228.30]

Graminoids	Ungrazed Ambient	0.83	[-1.02, 2.69]	8.04^a	[4.20, 11.89]	6.46^a	[2.40, 10.53]

	Ungrazed Warmed	0.29	[-1.56, 2.14]	7.25^a	[3.40, 11.09]	6.00^a	[1.93, 10.07]

	Grazed Ambient	-2.48^a	[-4.20, -0.76)]	7.94^a	[4.37, 11.51]	6.28^a	[2.50, 10.05]

	Grazed Warmed	-0.69	[-2.41, 1.03]	7.33^a	[3.76, 10.89]	5.78^a	[2.01, 9.56]

Forbs	Ungrazed Ambient	-0.51	[-2.66, 1.64]	2.17^a	[0.19, 4.14]	0.67	[-1.67, 3.00]

	Ungrazed Warmed	-1.72	[-3.87, 0.43]	2.80^a	[0.83, 4.77]	-0.66	[-2.99, 1.67]

	Grazed Ambient	-0.88	[-2.87, 1.12]	1.88^a	[0.04, 3.71]	0.86	[-1.30, 3.03]

	Grazed Warmed	0.06	[-1.93, 2.06]	1.86^a	[0.03, 3.69]	-0.12	[-2.28, 2.05]

CI: confidence intervals of the means for each treatment combination. ^aindicates that the mean is statistically different from 0 at p ≤ 0.05. δ_p: primary change (2003–2004), δ_s: secondary change (2005–2006), δ_c: cumulative change (2003–2006).