Table 1 Hyperdominance of stem abundance and carbon cycling in the Amazon.

From: Hyperdominance in Amazonian forest carbon cycling

 

Full data set

Productivity data set

 

Plots

Species

No. of hyperdominants (%)

Plots

Species

No. of hyperdominants (%)

   

Stems

Biomass

  

Stems

Biomass

Productivity*

Amazon-wide

530

3,458

283 (8.2)

182 (5.3)

221

2,965

250 (8.4)

160 (5.4)

184 (6.4)

Northwestern

123

1,632

199 (12.2)

170 (10.4)

33

1,412

162 (11.5)

138 (9.8)

115 (8.4)

Southwestern

169

1,330

60 (4.5)

64 (4.8)

59

1,185

62 (5.2)

62 (5.2)

66 (5.8)

Guiana Shield

116

1,262

131 (10.4)

62 (4.9)

49

748

92 (12.3)

36 (4.8)

52 (7.1)

East-Central

69

1,386

157 (11.3)

101 (7.3)

56

1,317

152 (11.5)

96 (7.3)

117 (9.1)

Brazilian Shield

53

890

82 (9.2)

55 (6.2)

26

698

39 (5.6)

23 (3.3)

30 (4.5)

  1. Number and percentage of species that contribute 50% of stem numbers, aboveground biomass and aboveground productivity for the whole data set and split by region.
  2. *If a tree dies before the second census, it will contribute to biomass and stems but will not have a productivity value, hence the percentage value is calculated from a slightly smaller total number of species (2,883).
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