Project Update: April 2013 Results Stand structure of Woody plant species



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*N-Number of individuals, F-Frequency, A-Abundence, D-Density, RF-Relative Frequency, RA- Relative Abundence, RD- Relative Density, BA- Basal Area, IVI- Importance Value Index

Fig. 1. Figure showing plant species against IVI value in Hosthota area

The number of woody plant families in the samples area of the study site was 32 (Table 2). Among them, Lauraceae was well represented with 8 species followed by Clusiaceae , Ebanaceae and Myristicaceae having 5 species each and Anacardiaceae, Euphorbiaceae, Moraceae and Sapotaceae having represented by 4 species each. At the generic level, the most represented was Lauraceae (n=7), Euphorbiaceae (n=4) and Sapotaceae (n=4). Based on density, the family Myristicaceae represented highest number of individuals (n= 254) followed by Ebanaceae (n=236), Dipterocarpaceae (n=158) and Clusiaceae (n=157). The maximum basal area was recorded for family Ebanaceae (17.48) followed by Myrtaceae (11.59) and Anacardiaceae (11.44). Of this, Myristicaceae was the densest family (16.89%) followed by Ebanaceae (15.7%), Dipterocarpaceae (10.51%) and Clusiaceae (10.44%). A total of 18 families were represented by single species at the study site.

Table 2. Showing details of family, species richness, generic richness, basal area and family importance value.



Family

Species Richness

Generic richness

No. of individuals

Family Relative density

Family Relative diversity

Basal area

Family Relative dominance

Family ImportanceValue

Anacardiaceae

4

3

151

10.05

5.63

11.44

10.54

26.22

Anonaceae

1

1

1

0.07

1.41

0.06

0.06

1.53

Apocynaceae

1

1

8

0.53

1.41

0.10

0.09

2.03

Aracaceae

2

2

6

0.40

2.82

0.26

0.24

3.46

Bignonianaceae

1

1

1

0.07

1.41

0.21

0.19

1.67

Burseraceae

1

2

2

0.13

1.41

0.17

0.16

1.70

Celastraceae

2

2

24

1.60

2.82

7.09

6.53

10.95

Clusiaceae

5

2

157

10.45

7.04

6.44

5.93

23.42

Dipterocarpaceae

1

1

158

10.51

1.41

9.09

8.38

20.30

Ebanaceae

5

1

236

15.70

7.04

17.48

16.11

38.85

Euphorbiaceae

4

4

37

2.46

5.63

1.25

1.15

9.25

Flacortiaceae

3

3

24

1.60

4.23

1.14

1.05

6.87

Lauraceae

8

7

72

4.79

11.27

6.28

5.79

21.84

Liliaceae

1

1

2

0.13

1.41

0.65

0.60

2.14

Lythraceae

1

1

5

0.33

1.41

0.92

0.85

2.59

Melastomaceae

1

1

12

0.80

1.41

0.20

0.18

2.39

Meliaceae

1

1

39

2.59

1.41

1.33

1.23

5.23

Mimosaceae

1

1

1

0.07

1.41

0.21

0.19

1.67

Moraceae

4

2

20

1.33

5.63

3.14

2.89

9.86

Myristicaceae

3

2

254

16.90

4.23

9.59

8.84

29.96

Myrtaceae

5

1

36

2.40

7.04

11.95

11.01

20.45

Oleaceae

1

1

97

6.45

1.41

9.02

8.31

16.17

Rhizophoraceae

1

1

3

0.20

1.41

0.04

0.04

1.64

Rosaceae

1

1

1

0.07

1.41

0.19

0.18

1.65

Rubiaceae

2

2

42

2.79

2.82

0.72

0.66

6.27

Rutaceae

1

1

1

0.07

1.41

0.01

0.01

1.48

Sapindaceae

1

1

10

0.67

1.41

0.29

0.27

2.34

Sapotaceae

4

4

24

1.60

5.63

1.34

1.23

8.47

Sterculiaceae

1

2

26

1.73

1.41

1.62

1.49

4.63

Symplocaceae

1

1

19

1.26

1.41

0.89

0.82

3.49

Urticaceae

1

1

12

0.80

1.41

0.22

0.20

2.41

Verbenaceae

2

2

22

1.46

2.82

5.19

4.78

9.06

Chiksuli area-

A total of 1383 woody plant belonging to 73 species, 54 genera spread over 31 families were recorded from 128 circular plots (10 m radius) in the study site of Chiksuli of Group 2 range (Table 3 and 4). The woody plant community paramaters are as computed in the Table 3. Among them Olea dioca was represented by maximum number of individuals (n=128) followed by Knema attenuata (n=100), Aglaia roxburghiana (n=92) and Garcenia talbotti (n=89). The highest Important Value Index (IVI) was recorded for Olea dioca (17.89) followed by Knema attenuata (15.61), Aglaia roxburghiana (14.41) and Garcenia talbotti (13.00) as shown in Table 3 and Fig. 2.



Table 3. Table showing details of species, family, frequency, abundance, basal area and importance value index of species present in Chiksuli.

Name of the species

Family

N

No. of occur-ednce plots

GBH (m)

F

A

D

RF

RA

RD

BA

IVI

Olea dioca

Oleaceae

128

57

135.7

44.53

2.24

1

6.36

2.39

9.14

15.39

17.8

Nathopegia racemosa

Anacardiaceae

27

23

13.6

17.96

1.17

0.21

2.56

1.25

1.92

0.58

5.74

Memecylon malabaricum

Melastomaceae

7

7

2.71

5.46

1

0.05

0.78

1.06

0.49

0.08

2.34

Garcinia morella

Clusiaceae

73

37

37.03

28.90

1.97

0.57

4.12

2.10

5.21

1.61

11.44

Caryota urens

Aracaceae

2

2

1.80

1.56

1

0.01

0.22

1.06

0.14

0.12

1.43

Callophylum apetalum

Clusiaceae

3

3

2.13

2.34

1

0.02

0.33

1.06

0.21

0.14

1.61

Vitex altissema

Verbenaceae

14

9

19.77

7.03

1.55

0.10

1.01

1.65

0.99

2.8

3.66

Ficus microcarpa

Moraceae

1

1

0.57

0.78

1

0.007

0.11

1.06

0.07

0.02

1.24

Sterculia guttata

Sterculiaceae

4

3

3.65

2.34

1.33

0.03

0.33

1.41

0.28

0.34

2.04

Neolitsia zeylanica

Lauraceae

6

5

3.009

3.90

1.2

0.04

0.55

1.27

0.42

0.13

2.26

Steriospermu-m personatum

Bignonianaceae

2

1

1.1

0.78

2

0.01

0.11

2.12

0.14

0.05

2.38

Eleocarpus serratus

Urticaceae

13

12

6.47

9.37

1.08

0.10

1.33

1.15

0.92

0.27

3.42

Actinodaphne hookeri

Lauraceae

6

6

3.12

4.68

1

0.04

0.66

1.06

0.42

0.15

2.16

Litsea stocksii

Lauraceae

52

33

34.40

25.78

1.57

0.40

3.68

1.67

3.71

2.01

9.07

Aparosa lindelana

Euphorbiaceae

4

4

2.22

3.12

1

0.03

0.44

1.06

0.28

0.1

1.79

Macarange peltata

Euphorbiaceae

14

10

7.69

7.81

1.4

0.10

1.11

1.49

0.99

0.38

3.60

Cinnamomum malabathrum

Lauraceae

7

7

3.30

5.46

1

0.05

0.78

1.06

0.49

0.13

2.34

Canerium strictum

Burseraceae

3

3

4.22

2.34

1

0.02

0.33

1.06

0.21

0.51

1.61

Euodia lunu-ankenda

Rutaceae

15

11

1.26

8.59

1.36

0.11

1.22

1.45

1.07

1.26

3.75

Ficus asperima

Moraceae

1

2

0.82

1.56

0.5

0.007

0.22

0.53

0.07

0.05

0.82

Xantolis tomentosa

Sapotaceae

14

12

10.19

9.37

1.16

0.10

1.33

1.24

0.99

0.74

3.58

Ixora brachiata

Rubiaceae

21

17

9.46

13.28

1.23

0.16

1.89

1.31

1.49

0.36

4.71

Cassine glauca

Celastraceae

4

3

11.35

2.34

1.33

0.03

0.33

1.41

0.28

5.41

2.04

Persia macarantha

Lauraceae

5

5

5.19

3.90

1

0.03

0.55

1.06

0.35

0.71

1.97

Hopea ponga

Dipterocarpaceae

79

34

59.19

26.56

2.32

0.61

3.79

2.47

5.64

4.4

11.91

Chrysophyllum roxburghii

Sapotaceae

1

1

1.57

0.78

1

0.007

0.11

1.06

0.07

0.19

1.24

Tabernamontana heyinana

Apocynaceae

6

6

2.24

4.68

1

0.04

0.66

1.06

0.42

0.06

2.16

Canthium dicoccum

Rubiaceae

2

2

1.32

1.56

1

0.01

0.22

1.06

0.14

0.06

1.43

Flacourtia montana

Flacortiaceae

6

4

3.07

3.12

1.5

0.04

0.44

1.59

0.42

0.14

2.47

Artocarpus hirsutus

Moraceae

8

7

5.62

5.46

1.14

0.06

0.78

1.22

0.57

0.4

2.56

Knema attenuata

Myristicaceae

100

60

76.32

46.87

1.66

0.78

6.69

1.77

7.14

5.38

15.61

Celtis tetandra

Ulmaceae

1

1

0.63

0.78

1

0.007

0.11

1.06

0.07

0.03

1.24

Diospyros sylvetrica

Ebanaceae

2

2

0.97

1.56

1

0.01

0.22

1.06

0.14

0.03

1.43

Terminalia paniculata

Combretaceae

1

1

1.6

0.78

1

0.007

0.11

1.06

0.07

0.2

1.24


Casearia beddomi

Flacortiaceae



6

6

3.12

4.68

1

0.04

0.66

1.06

0.42

0.15

2.16

Symplocos racemosa

Symplocaceae

23

15

11.02

11.71

1.53

0.17

1.67

1.63

1.64

0.48

4.94

Alsea daphni

Lauraceae

3

3

3.20

2.34

1

0.02

0.33

1.06

0.21

0.31

1.61

Xylia xylocarpa

Fabaceae

54

18

38.03

14.06

3

0.42

2

3.19

3.85

2.75

9.05

Garcinia talbotti

Clusiaceae

89

36

72.63

28.12

2.47

0.69

4.01

2.63

6.35

5.57

13.00

Belsmedia whitii

Lauraceae

24

23

21.3

17.96

1.04

0.18

2.56

1.11

1.71

1.86

5.39

Aglaia roxburghiana

Meliaceae

92

54

67.28

42.18

1.70

0.71

6.02

1.81

6.56

4.97

14.41

Syzizium laetum

Myrtaceae

7

7

2.57

5.46

1

0.05

0.78

1.06

0.49

0.07

2.34

Syzygium cumini

Myrtaceae

2

2

3.12

1.56

1

0.01

0.22

1.06

0.14

0.43

1.43

Diospyros candolliana

Ebanaceae

51

31

37.12

24.21

1.64

0.39

3.45

1.75

3.64

2.57

8.85

Careya arborea

Aracaceae

1

1

0.76

0.78

1

0.007

0.11

1.06

0.07

0.04

1.24

Dimocarpus longan

Sapindaceae

72

43

43.54

33.59

1.67

0.56

4.79

1.78

5.14

2.6

11.72

Homelium zeylanicum

Flacortiaceae

5

4

2.78

3.12

1.25

0.03

0.44

1.33

0.35

0.14

2.13

Syzygium caryphyllatum

Myrtaceae

1

1

1.19

0.78

1

0.007

0.11

1.06

0.07

0.11

1.24

Sapium insigne

Euphorbiaceae

1

1

1.19

0.78

1

0.007

0.11

1.06

0.07

0.72

1.24

Pterospermum reticulatum

Sterculiaceae

37

20

21.22

15.62

1.85

0.28

2.23

1.96

2.64

1.1

6.84

Mangefera indica

Anacardiaceae

8

8

3.17

6.25

1

0.06

0.89

1.06

0.57

0.1

2.52

Alstonia scolaris

Apocynaceae

1

1

0.45

0.78

1

0.007

0.11

1.06

0.07

0.01

1.24

Holigarna arnottiana

Anacardiaceae

64

44

45.17

34.37

1.45

0.5

4.91

1.54

4.57

2.99

11.02

Syzizium hemispermicum

Myrtaceae

12

10

9

7.81

1.2

0.09

1.11

1.27

0.85

0.79

3.25

Diospyros buxifolia

Ebanaceae

4

4

6.68

3.12

1

0.03

0.44

1.06

0.28

1.2

1.79

Lageostromia microcarpa

Lythraceae

3

3

6.01

2.34

1

0.02

0.33

1.06

0.21

0.98

1.61

Ficus nervosa

Moraceae

9

8

22.86

6.25

1.12

0.07

0.89

1.19

0.64

17.65

2.73

Glochidion velutinum

Euphorbiaceae

5

3

4.26

2.34

1.66

0.03

0.33

1.77

0.35

0.35

2.46

Maduca longifolia

Sapotaceae

3

1

2.62

0.78

3

0.02

0.11

3.19

0.21

0.19

3.52

Syzigium gardneri

Myrtaceae

6

6

10.8

4.68

1

0.04

0.66

1.06

0.42

2.75

2.16

Myristica malabarica

Myristicaceae

1

1

0.48

0.78

1

0.007

0.11

1.06

0.07

0.01

1.24

Mimusops elengi

Sapotaceae

21

17

16.23

13.28

1.23

0.16

1.89

1.31

1.49

1.61

4.71

Diospyros angustfolia

Ebanaceae

16

16

8.3

12.5

1

0.12

1.78

1.06

1.14

0.39

3.99

Myristica dactyloides

Myristicaceae

17

13

11.69

10.15

1.30

0.13

1.45

1.39

1.21

0.8

4.05

Callophylum tomentasum

Clusiaceae

11

11

21.39

8.59

1

0.08

1.22

1.06

0.78

3.56

3.07

Callicarpa tomentosa

Verbinaceae

12

11

5.1

8.59

1.09

0.09

1.22

1.16

0.85

0.18

3.24

Terminelia bellarica

Combretaceae

2

2

3.68

1.56

1

0.01

0.22

1.06

0.14

0.54

1.43

Holigarna grahmi

Anacardiaceae

16

16

11.35

12.5

1

0.12

1.78

1.06

1.14

0.76

3.99

Hydnocarpus pentandra

Flacortiaceae

1

1

0.86

0.78

1

0.007

0.11

1.06

0.07

0.05

1.24

Litsea floribonda

Lauraceae

40

25

31.47

19.53

1.6

0.31

2.79

1.70

2.85

2.66

7.35

Garcinia gummi-gutta

Clusiaceae

45

35

34.65

27.34

1.28

0.35

3.90

1.36

3.21

2.8

8.48

Artocarpus lakoocha

Moraceae

1

1

0.60

0.78

1

0.007

0.11

1.06

0.07

0.02

1.24

Nothapodytes nimmoniana

Icaciniceae

3

3

1.11

2.34

1

0.02

0.33

1.06

0.21

0.03

1.61
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