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Table 9 Diversity estimates of the regeneration layer interpolated and extrapolated based on abundance data (number of individuals) using the iNEXT package

From: Tree regeneration characteristics in limestone forests of the Cat Ba National Park, Vietnam

m

Method

Order

qD

qD.LCL

qD.UCL

SC

SC.LCL

SC.UCL

5

Interpolated

0

4.564

4.540

4.587

0.201

0.192

0.211

30

Interpolated

0

18.551

18.190

18.912

0.599

0.586

0.613

200

Interpolated

0

49.660

48.275

51.044

0.904

0.900

0.909

3622

Observed

0

96.998

93.500

100.495

0.998

0.996

0.999

8000

Extrapolated

0

100.489

93.245

107.733

1.000

0.999

1.001

5

Interpolated

1

4.414

4.386

4.442

0.201

0.193

0.210

30

Interpolated

1

15.541

15.199

15.884

0.599

0.591

0.608

200

Interpolated

1

29.309

28.405

30.213

0.904

0.900

0.908

3622

Observed

1

35.955

34.762

37.149

0.998

0.996

0.999

8000

Extrapolated

1

36.331

35.123

37.539

1.000

0.999

1.001

5

Interpolated

2

4.205

4.163

4.247

0.201

0.191

0.212

30

Interpolated

2

12.654

12.198

13.110

0.599

0.588

0.611

200

Interpolated

2

19.219

18.144

20.294

0.904

0.900

0.908

3622

Observed

2

21.038

19.746

22.331

0.998

0.996

0.999

8000

Extrapolated

2

21.102

19.802

22.403

1.000

0.999

1.001

  1. m = sample size as number of individuals; order = Hill number with 0 = species richness; 1 = Shannon diversity, 2 = Simpson diversity; qD = the estimated diversity for a given sample size and order; SC = the estimated sample coverage; qD.LCL, qD.UCL = the lower and upper confidence level for the estimated diversity at the default value of 0.95; SC.LCL, SC.UCL = the lower and upper confidence level for the estimated sample coverage with a default value of 0.95