Influence of Elevation and Anthropogenic Disturbance on Woody Species Composition, Diversity, and Stand Structure in Harego Mountain Forest, Northeastern Ethiopia
Table 3
The RF, RBA, RD, and IVI values of each species encountered in the three elevational gradients of Harego Mountain Forest.
Species
Lower elevation
Middle elevation
Upper elevation
RF
RBA
RD
IVI
RF
RBA
RD
IVI
RF
RBA
RD
IVI
Acacia abyssinica
1.49
0.62
0.16
2.27
0.72
2.49
0.10
3.31
2.65
9.95
0.53
13.14
Acacia etbaica
1.12
0.55
0.20
1.87
1.92
1.20
0.31
3.43
0.88
0.80
0.29
1.98
Acacia seyal
0.76
0.00
0.06
0.81
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Asparagus africanus
0.76
0.00
0.72
1.48
0.72
0.00
0.32
1.04
0.88
0.00
0.39
1.27
Berberis holstii
0.00
0.00
0.02
0.02
0.48
0.00
0.10
0.58
0.00
0.00
0.00
0.00
Buddleja polystachya
0.76
0.02
0.13
0.91
0.72
0.08
0.20
1.01
0.88
0.08
0.15
1.11
Calpurnia aurea
4.43
0.71
2.30
7.44
3.13
0.53
2.33
5.98
3.54
0.81
2.14
6.49
Carissa spinarum
7.74
1.97
9.65
19.36
6.25
1.89
7.98
16.13
7.96
5.10
10.59
23.65
Clematis hirsuta
0.00
0.00
0.02
0.02
1.44
0.13
0.83
2.40
0.00
0.00
0.00
0.00
Clerodendrum myricoides
1.49
0.02
0.30
1.82
2.64
0.41
0.79
3.83
2.65
0.94
0.68
4.27
Clutia abyssinica
0.00
0.00
0.02
0.02
0.72
0.00
0.13
0.85
0.00
0.00
0.00
0.00
Crateva adansonii
0.76
0.08
0.20
1.03
1.44
0.82
0.93
3.19
0.00
0.00
0.00
0.00
Cupressus lusitanica
1.49
2.57
0.62
4.68
1.44
1.63
0.22
3.29
0.00
0.00
0.00
0.00
Dodonaea angustifolia
7.37
6.81
22.21
36.39
6.73
4.48
15.63
26.84
7.96
9.60
16.46
34.02
Dombeya torrida
0.00
0.00
0.02
0.02
3.13
1.46
1.67
6.26
0.88
0.34
0.44
1.66
Echinops macrochaetus
2.59
0.00
2.16
4.75
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Ekebergia capensis
0.76
0.56
0.13
1.45
0.24
1.51
0.13
1.88
0.00
0.00
0.00
0.00
Erica arborea
0.00
0.00
0.02
0.02
0.24
0.00
0.01
0.26
0.00
0.00
0.00
0.00
Eucalyptus globulus
0.76
1.27
0.06
2.09
1.20
11.87
0.16
13.23
0.88
4.12
0.05
5.05
Euclea racemosa
9.21
2.10
7.34
18.65
4.09
0.56
2.52
7.16
2.65
0.50
1.51
4.66
Euphorbia candelabrum
5.90
37.44
6.32
49.67
2.64
18.41
2.08
23.13
0.00
0.00
0.00
0.00
Euphorbia tirucalli
0.76
0.00
0.16
0.92
0.24
0.00
0.03
0.27
0.00
0.00
0.00
0.00
Festuca simensis
0.00
0.00
0.02
0.02
0.96
0.00
0.52
1.48
0.00
0.00
0.00
0.00
Grewia ferruginea
1.12
2.37
0.72
4.22
2.40
0.47
1.19
4.06
0.88
0.03
0.10
1.01
Heteromorpha arborescens
1.12
0.01
0.34
1.48
2.64
0.04
2.30
4.99
2.65
0.14
1.99
4.78
Jasminum abyssinicum
5.54
0.26
4.43
10.23
5.53
0.22
5.93
11.68
7.96
0.63
7.72
16.32
Juniperus procera
1.86
4.47
0.93
7.26
3.85
9.25
1.48
14.57
7.08
34.55
4.32
45.95
Lippia adoensis
0.00
0.00
0.02
0.02
0.48
0.00
1.28
1.76
1.77
0.00
2.38
4.15
Maytenus arbutifolia
2.23
0.42
1.98
4.63
2.16
0.45
2.72
5.33
3.54
1.22
5.78
10.54
Maytenus senegalensis
2.23
0.04
1.39
3.65
2.16
0.59
1.77
4.53
3.54
0.58
1.99
6.11
Mimusops kummel
0.00
0.00
0.02
0.02
0.48
0.53
0.19
1.20
0.00
0.00
0.00
0.00
Myrsine africana
3.70
0.91
8.60
13.21
6.01
0.96
12.55
19.52
7.96
2.82
14.18
24.96
Ocimum lamiifolium
0.76
0.00
0.16
0.92
0.24
0.00
0.03
0.27
0.00
0.00
0.00
0.00
Olea europaea
6.27
21.00
7.09
34.37
7.21
21.18
8.51
36.89
7.08
14.61
7.67
29.36
Olinia rochetiana
0.00
0.00
0.02
0.02
0.24
0.01
0.06
0.31
0.88
0.84
0.15
1.87
Opuntia ficus-indica
0.76
0.69
0.13
1.57
0.96
3.30
0.63
4.88
0.00
0.00
0.00
0.00
Osyris quadripartita
2.96
0.72
1.81
5.49
5.77
1.55
5.09
12.41
3.54
1.05
2.48
7.06
Otostegia integrifolia
0.00
0.00
0.02
0.02
0.24
0.00
0.32
0.56
0.00
0.00
0.00
0.00
Pinus patula
0.76
1.97
0.20
2.93
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Pittosporum viridiflorum
3.33
3.74
2.47
9.54
4.09
1.68
1.89
7.66
2.65
1.40
0.73
4.78
Premna schimperi
1.12
0.46
0.83
2.41
0.96
0.10
0.36
1.42
0.00
0.00
0.00
0.00
Prunus africana
0.76
0.22
0.16
1.13
0.72
1.47
0.38
2.57
0.88
0.03
0.05
0.96
Pterolobium stellatum
1.86
0.19
0.76
2.80
1.44
0.11
0.63
2.18
0.88
0.32
0.63
1.84
Rhus glutinosa
4.07
0.51
1.42
5.99
3.13
0.47
1.02
4.61
6.19
1.84
2.72
10.76
Rhus natalensis
8.48
6.98
13.50
28.95
6.73
10.13
14.36
31.22
7.96
7.44
11.70
27.11
Rhus retinorrhoea
1.49
0.26
0.65
2.40
0.24
0.00
0.04
0.28
0.00
0.00
0.00
0.00
Rosa abyssincia
0.76
0.06
0.34
1.16
0.72
0.04
0.23
0.99
0.88
0.29
1.31
2.48
Rumex nervosus
0.00
0.00
0.02
0.02
0.00
0.00
0.00
0.00
0.88
0.00
0.58
1.47
Senra incana
0.00
0.00
0.02
0.02
0.48
0.00
0.06
0.54
0.88
0.00
0.29
1.18
Solanum marginatum
0.76
0.00
0.20
0.95
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
RF = relative frequency, RD = relative density, RBA = relative basal area, and IVI = important value index.
