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A Comparison of the Structure and Composition of Montane and Lowland Tropical Forest in the Serranía Pilón Lajas, Beni, Bolivia

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Table 3. The ten most important species in a one hectare permanent plot at the "Cumbre Pilón" in the Serranía Pilón Lajas, Beni Bolivia; the relative values are calculated as a percentage based on the summed values for all species for abundance, frequencies, and basal area; the importance value is a sum of the relative values.

Species

Abundance

Frequency

Basal area (cm2)

Relative density

Relative frequency

Relative dominance

Importance value

Tetragastris mucronata

31

16

18,669

4.79

3.21

6.10

14.09

Poulsenia armata

18

13

24,235

2.78

2.61

7.91

13.30

Dendropanax arboreaus

26

19

14,076

4.02

3.81

4.60

12.42

Hasseltia floribunda

38

19

8,236

5.87

3.81

2.69

12.37

Ampelocera ruizii

15

11

9,364

2.32

2.20

3.06

7.58

Sapium cf. glandulosum

12

9

10,628

1.85

1.80

3.47

7.13

Allophylus cf. petiolatus

22

12

3,493

3.40

2.40

1.14

6.95

Clarisia racemosa

11

9

9,391

1.70

1.80

3.07

6.57

Myriocarpus stipitatus

21

11

3,069

3.25

2.20

1.00

6.45

Helicostylis sp.

11

9

8,430

1.70

1.80

2.75

6.26

Subtotals

205

128

109,591

31.79

25.65

35.79

93.23

Other species

442

371

196,612

68.31

74.35

64.21

206.87

Totals

647

499

306,203

100.00

100.00

100.00

300.00

 

 
 
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