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Table 2 List of main tree species found in the forest types in the study site with several measures of their quantitative structure

From: Spatial pattern of tree diversity and evenness across forest types in Majella National Park, Italy

No.

English name

Scientific name

Family

Density (D)

Relative density (RD %)

Frequency (F)

Relative frequency (RF %)

Abundance

1

Ailanthus

Ailanthus altissima

Simaroubaceae

0.11

0.37

4

1.23

2.75

2

Aleppo Pine

Pinus alepensis

Pinaceae

2.21

7.34

16

4.91

13.81

3

Beech

Fagus sylvatica

Fagaceae

5.54

18.41

30

9.20

18.47

4

Black Pine

Pinusnigra

Pinaceae

4.80

15.95

49

15.03

9.80

5

Common Hazel

Corylu savellana

Betulaceae

0.01

0.03

1

0.31

1.00

6

Common Laburnum

Laburnum anagyroides

Fabaceae

0.19

0.63

7

2.15

2.71

7

European Ash

Fraxinus excelsior

Oleaceae

0.01

0.03

1

0.31

1.00

8

Evergreen/White Oak

Quercus spp

Fagaceae

1.27

4.22

11

3.37

11.55

9

Hophornbeam

Ostria carpinifolia

Butalaceae

4.57

15.19

49

15.03

9.33

10

Italian Alder

Alnus cordata

Betulaceae

0.09

0.30

4

1.23

2.25

11

Maple

Acer pseudoplatanus

Sapindaceae

0.72

2.39

24

7.36

3.00

12

Mona Ash/Fraxinus

Fraxinus ornus

Oleaceae

2.89

9.60

51

15.64

5.67

13

Montpellier Maple

Acer monspessulanum

Sapindaceae

0.10

0.33

7

2.15

1.43

14

Norway Mapple

Acer platanoides

Sapindaceae

0.11

0.37

3

0.92

3.67

15

Norway spruce

Picea abies

Pinaceae

0.01

0.03

1

0.31

1.00

16

Port-Orford-Cedar

Chamaecyparus cawsoniana

Cupressaceae

0.22

0.73

5

1.53

4.40

17

Pubescent Oak

Quercus pubescens

Fagaceae

4.66

15.49

25

7.67

18.64

18

Robinia

Robinia pseudoacacia

Fabaceae

0.15

0.50

5

1.53

3.00

19

Salix/White Willow

Salix alba

Salicaceae

0.04

0.13

2

0.61

2.00

20

Small leaved Maple/Field Maple

Acer campestre

Sapindaceae

0.49

1.63

7

2.15

7.00

21

Stone/Holly Oak

Quercus ilex

Fagaceae

1.16

3.86

14

4.29

8.29

22

Tilia/Linden/Lime

Tilia cordata

Malvaceae

0.40

1.33

7

2.15

5.71

23

Turkey Oak

Quercus cerris

Fagaceae

0.19

0.63

2

0.61

9.50

24

Wild Cherry

Prunus avium

Rosaceae

0.17

0.56

2

0.61

8.50