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Table 4 Differences in individual height, biomass and its allocation between fruiting and non-fruiting plants in ancient and recent forests, assessed using linear models (n = 100 per variant)

From: Forest land use discontinuity and northern red oak Quercus rubra introduction change biomass allocation and life strategy of lingonberry Vaccinium vitis-idaea

Response

Variable

Estimate

SE

t

Pr(>|t|)

Mean height (cm)

(Intercept)

10.1095

0.2406

42.0183

< 0.0001

Adj. R2 = 0.122

Land use: recent forest

0.9530

0.2778

3.4303

0.0007

Fruiting: yes

−1.8780

0.2778

−6.7598

< 0.0001

Dry stem biomass (g)

(Intercept)

0.1147

0.0049

23.5465

< 0.0001

Adj. R2 = 0.071

Land use: recent forest

−0.0088

0.0056

−1.5659

0.1182

Fruiting: yes

−0.0309

0.0056

−5.4852

< 0.0001

Dry foliage biomass (g)

(Intercept)

0.1854

0.0081

22.7968

< 0.0001

Adj. R2 = 0.141

Land use: recent forest

−0.0762

0.0094

−8.1100

< 0.0001

Fruiting: yes

0.0114

0.0094

1.2151

0.2251

Dry aboveground biomass (g)

(Intercept)

0.3953

0.0118

33.4828

< 0.0001

Adj. R2 = 0.241

Land use: recent forest

−0.1209

0.0136

−8.8674

< 0.0001

Fruiting: yes

−0.0966

0.0136

−7.0902

< 0.0001

Leaf mass fraction

(Intercept)

0.4384

0.0111

39.4632

< 0.0001

Adj. R2 = 0.469

Land use: recent forest

−0.0533

0.0128

−4.1551

< 0.0001

Fruiting: yes

0.2355

0.0128

18.3591

< 0.0001

Stem mass fraction

(Intercept)

0.2909

0.0088

33.1052

< 0.0001

Adj. R2 = 0.232

Land use: recent forest

0.1122

0.0101

11.0603

< 0.0001

Fruiting: yes

0.0057

0.0101

0.5597

0.5760

  1. t - test statistic, adjusted (Adj.) R2 – coefficient of determination