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Table 1 Results of the structural equation modeling done to test the effects of species richness on AGC through functional diversity and functional dominance

From: RETRACTED ARTICLE: Tree species diversity predicts aboveground carbon storage through functional diversity and functional dominance in the dry evergreen Afromontane forest of Hararghe highland, Southeast Ethiopia

Regression

Est. std

SE

p value

Est. std

SE

p-value

Partial mediation model

Full mediation model

Path from S to FEve

−0.44

0.10

< 0.001

−0.44

0.10

< 0.001

Path from S to FDis

0.40

0.11

< 0.001

0.40

0.11

< 0.001

Path from S to FDiv

0.12

0.13

0.356

0.12

0.13

0.356

Path from S to FRic

0.76

0.05

< 0.001

0.76

0.48

< 0.001

Path from S to CWM SLA

0.10

0.14

0.474

0.09

0.14

0.475

Path from S to CWM PHm

0.26

0.13

0.040

0.26

0.13

0.040

Path from S to CWM WD

−0.15

0.13

0.275

−0.15

0.13

0.273

Path from S to AGC

0.45

0.19

0.016

   

Path from FRic to AGC

−0.09

0.21

0.651

0.17

0.19

0.374

Path from FEve to AGC

0.14

0.17

0.422

0.05

0.17

0.784

Path from FDiv to AGC

−0.27

0.13

0.037

−0.23

0.14

0.084

Path from FDis to AGC

0.19

0.18

0.275

0.26

0.18

0.143

Path from CWM PHm to AGC

−0.09

0.12

0.457

−0.07

0.13

0.618

Path from CWM WD to AGC

0.18

0.15

0.250

0.13

0.16

0.434

Path from CWM SLA to AGC

−0.19

0.15

0.207

−0.17

0.16

0.298

Fit statistics

Chisq: 19.58 (p = 0.076)

   

Chisq: 24.63 (p = 0.026)

DF: 12

   

DF: 13

SRMR: 0.07

   

SRMR: 0.07

GFI: 0.95

   

GFI: 0.93

  1. AGC aboveground biomass carbon, S species richness, FRic functional richness, FEve functional evenness, FDis functional dispersion, FDiv functional divergence, CWM community weight mean, WD wood density, SLA specific leaf area, PHm maximum plant height, SE standard error, Est. std standardized estimate, Chisq Chi-square statistic, DF degree of freedom, indicating the number of paths omitted from the model, p the probability of the data given the model, p > 0.05. GFI goodness fit index, SRMR standardized root means square residual