Species Diversity, Growth, Status, and Biovolume of Taia River Riparian Forest in Southern Sierra Leone: Implications for Community-Based Conservation
Table 1
Species composition parameters and biovolume.
Trees species
Indiv
PltsO
A,Db
Av ht
ABA
Dom
D (ha)
Freq
BC (h)
Rden
RF
Rdom
IVI
Bio-V
Trichilie heudelotii
94
9
12.9
10.4
0.01
10.44
67.14
64.29
0.88
16.21
7.03
7.00
30.24
9.12
Funtumia africana
70
10
12.2
11.2
0.01
7.00
50.00
71.43
0.58
12.07
7.81
4.66
24.54
6.54
Myrianthus arboreus
43
8
11.0
9.9
0.01
5.38
30.71
57.14
0.29
7.41
6.25
2.33
15.99
2.89
Measa lanceolate
41
6
13.0
14.9
0.01
6.83
29.29
42.86
0.39
7.07
4.69
3.10
14.86
5.79
Albizia zygia
36
7
11.4
13.7
0.01
5.14
25.71
50.00
0.26
6.21
5.47
2.09
13.77
3.59
Pynanthus angolensis
31
4
13.6
18.3
0.01
7.75
22.14
28.57
0.32
5.34
3.13
2.56
11.03
5.88
Cola gigantean
30
7
10.5
14.4
0.01
4.29
21.43
50.00
0.19
5.17
5.47
1.48
12.12
2.67
Synsealus brevepics
28
6
16.1
13.4
0.02
4.67
20.00
42.86
0.41
4.83
4.69
3.25
12.76
5.45
Diealiun pobeguinii
25
5
15.3
15.8
0.02
5.00
17.86
35.71
0.33
4.31
3.91
2.62
10.83
5.18
Pterocarpus santaliniodes
22
4
18.4
22.2
0.03
5.50
15.71
28.57
0.42
3.79
3.13
3.33
10.25
9.27
Milicia regia
13
3
17.9
13.9
0.03
4.33
9.29
21.43
0.23
2.24
2.34
1.86
6.45
3.25
Chassalia carollifere
13
4
18.9
9.4
0.03
3.25
9.29
28.57
0.26
2.24
3.13
2.08
7.44
2.45
Spondias mombin
11
2
17.0
19.6
0.02
5.50
7.86
14.29
0.18
1.90
1.56
1.42
4.88
3.49
Cheistopholis patens
9
2
16.8
19.0
0.02
4.50
6.43
14.29
0.14
1.55
1.56
1.14
4.25
2.71
Ochthocosmus africanus
9
3
21.4
24.0
0.04
3.00
6.43
21.43
0.23
1.55
2.34
1.84
5.74
5.55
Dryptes aubrevillei
9
3
23.4
16.3
0.04
3.00
6.43
21.43
0.28
1.55
2.34
2.20
6.10
4.50
Ficus vogelii
9
2
49.0
31.8
0.19
4.50
6.43
14.29
1.21
1.55
1.56
9.67
12.78
38.53
Cordial platyfolis
8
2
23.2
17.1
0.04
4.00
5.71
14.29
0.24
1.38
1.56
1.93
4.87
4.13
Ceiba guineansis
7
2
19.4
32.1
0.03
3.50
5.00
14.29
0.15
1.21
1.56
1.18
3.95
4.74
Albezia ferrginea
6
1
24.1
23.2
0.05
6.00
4.29
7.14
0.20
1.03
0.78
1.56
3.37
4.53
Ficus mucoso
6
2
20.7
15.9
0.03
3.00
4.29
14.29
0.14
1.03
1.56
1.15
3.75
2.29
Cordial plathyrsa
5
2
23.4
19.0
0.04
2.50
3.57
14.29
0.15
0.86
1.56
1.22
3.65
2.92
Cola lataritia
5
2
26.3
17.3
0.05
2.50
3.57
14.29
0.19
0.86
1.56
1.55
3.97
3.35
Diacaena ovate
4
1
27.4
24.2
0.06
4.00
2.86
7.14
0.17
0.69
0.78
1.34
2.81
4.07
Sterculia trigacantha
4
3
25.6
20.3
0.05
1.33
2.86
21.43
0.15
0.69
2.34
1.17
4.21
2.98
Cassio sieberiana
4
2
31.4
27.2
0.08
2.00
2.86
14.29
0.22
0.69
1.56
1.76
4.02
6.01
Albizia adialthifolia
3
1
33.2
38.0
0.09
3.00
2.14
7.14
0.19
0.52
0.78
1.48
2.78
7.05
Canarium schweinfurthii
3
1
20.1
20.1
0.03
3.00
2.14
7.14
0.07
0.52
0.78
0.54
1.84
1.37
Diosbyros elliotii
2
1
36.2
25.8
0.10
2.00
1.43
7.14
0.15
0.34
0.78
1.17
2.30
3.79
Macaranga hurifola
2
2
32.4
34.1
0.08
1.00
1.43
14.29
0.12
0.34
1.56
0.94
2.85
4.01
Afzelia Africana
2
1
29.6
32.5
0.07
2.00
1.43
7.14
0.10
0.34
0.78
0.78
1.91
3.19
Diosbyros elliotii
2
1
41.4
31.0
0.13
2.00
1.43
7.14
0.19
0.34
0.78
1.53
2.66
5.96
Piptandeniastrum africanum
2
1
45.2
31.2
0.16
2.00
1.43
7.14
0.23
0.34
0.78
1.83
2.95
7.15
Dracaena fragans
2
1
39.3
16.4
0.12
2.00
1.43
7.14
0.17
0.34
0.78
1.38
2.51
2.84
Xyopia guintasi
2
1
31.3
32.1
0.08
2.00
1.43
7.14
0.11
0.34
0.78
0.88
2.00
3.53
Parinari excelsa
2
1
29.5
36.0
0.07
2.00
1.43
7.14
0.10
0.34
0.78
0.78
1.90
3.51
Anthocleista djalonensis
2
2
34.1
23.9
0.09
1.00
1.43
14.29
0.13
0.34
1.56
1.04
2.95
3.12
Klainedoxe gabonesis
2
1
47.5
15.3
0.18
2.00
1.43
7.14
0.25
0.34
0.78
2.02
3.14
3.87
Trichilia lantana
2
2
31.5
19.2
0.08
1.00
1.43
14.29
0.11
0.34
1.56
0.89
2.80
2.14
Diospyros heudelotii
1
1
17.0
22.0
0.02
1.00
0.71
7.14
0.02
0.17
0.78
0.13
1.08
0.36
Xylopia aethiopica
1
1
47.6
12.0
0.18
1.00
0.71
7.14
0.13
0.17
0.78
1.01
1.97
1.52
Terminalia ivorensis
1
1
53.4
52.1
0.22
1.00
0.71
7.14
0.16
0.17
0.78
1.28
2.23
8.33
Anisophylla laurina
1
1
50.7
27.2
0.20
1.00
0.71
7.14
0.14
0.17
0.78
1.15
2.10
3.92
Anthocleista nobilis
1
1
63.1
11.3
0.31
1.00
0.71
7.14
0.22
0.17
0.78
1.78
2.73
2.52
Alchonea cordifolia
1
1
74.3
12.4
0.43
1.00
0.71
7.14
0.31
0.17
0.78
2.47
3.42
3.84
Arthrocapus spp
1
1
91.1
51.6
0.65
1.00
0.71
7.14
0.47
0.17
0.78
3.71
4.67
24.01
Dracaena alliotii
1
1
95.8
39.2
0.72
1.00
0.71
7.14
0.51
0.17
0.78
4.11
5.06
20.17
Dracaena heudelotii
1
1
87.2
33.9
0.60
1.00
0.71
7.14
0.43
0.17
0.78
3.40
4.35
14.45
Octhococosmos africanus
1
1
21.5
18.7
0.04
1.00
0.71
7.14
0.03
0.17
0.78
0.21
1.16
0.48
Total
602
14
414.29
914.29
12.54
100.00
100.0
100.00
300.00
283.05
Note. Indiv means individual trees; Plt,O = plots of occurrence; A,Db = average diameter at breast height; Av,ht = average height; ABA = average basal area (m2); Dorm = dominance; BC (h) = basal cover (m2); Freq = frequency (percentage); D (h) = density (individuals per ha); Rden = relative density; Rdom = relative dominance; RF = relative frequency; IVI = importance value index; Bio = bio-volume (m3).
