Table 3 Correlations (Kendall’s τ) between carbon and tree diversity in South America (n = 158 plots), Africa (n = 162) and Asia (n = 40).

From: Diversity and carbon storage across the tropical forest biome

Diversity metric

South America

Africa

Asia

τ

P-value

τ

P-value

τ

P-value

Fisher’s α

0.083

0.12

0.012

0.821

0.115

0.302

Species richness

0.084 (0.092)

0.12 (0.087)

0.014 (0.031)

0.788 (0.573)

0.132 (0.151)

0.230 (0.174)

Genus richness

0.066 (0.059)

0.223 (0.272)

−0.016 (0.01)

0.765 (0.859)

−0.006 (−0.051)

0.954 (0.652)

Family richness

−0.007 (−0.042)

0.893 (0.43)

−0.051 (−0.036)

0.35 (0.519)

0.087 (0.021)

0.434 (0.862)

Detectable effect size

τ = 0.14 r = 0.22

τ = 0.14 r = 0.22

τ = 0.28 r = 0.43

  1. Power analysis was used to estimate the minimum effect size (presented as both τ and Pearson’s r) detectable with 80% power. Correlations with taxon richness per 300 stems are shown in parentheses. Correlations with other diversity metrics shown in Supplementary Table 4.
Back to article page