Research Article

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.

SpeciesLower elevationMiddle elevationUpper elevation
RFRBARDIVIRFRBARDIVIRFRBARDIVI

Acacia abyssinica1.490.620.162.270.722.490.103.312.659.950.5313.14
Acacia etbaica1.120.550.201.871.921.200.313.430.880.800.291.98
Acacia seyal0.760.000.060.810.000.000.000.000.000.000.000.00
Asparagus africanus0.760.000.721.480.720.000.321.040.880.000.391.27
Berberis holstii0.000.000.020.020.480.000.100.580.000.000.000.00
Buddleja polystachya0.760.020.130.910.720.080.201.010.880.080.151.11
Calpurnia aurea4.430.712.307.443.130.532.335.983.540.812.146.49
Carissa spinarum7.741.979.6519.366.251.897.9816.137.965.1010.5923.65
Clematis hirsuta0.000.000.020.021.440.130.832.400.000.000.000.00
Clerodendrum myricoides1.490.020.301.822.640.410.793.832.650.940.684.27
Clutia abyssinica0.000.000.020.020.720.000.130.850.000.000.000.00
Crateva adansonii0.760.080.201.031.440.820.933.190.000.000.000.00
Cupressus lusitanica1.492.570.624.681.441.630.223.290.000.000.000.00
Dodonaea angustifolia7.376.8122.2136.396.734.4815.6326.847.969.6016.4634.02
Dombeya torrida0.000.000.020.023.131.461.676.260.880.340.441.66
Echinops macrochaetus2.590.002.164.750.000.000.000.000.000.000.000.00
Ekebergia capensis0.760.560.131.450.241.510.131.880.000.000.000.00
Erica arborea0.000.000.020.020.240.000.010.260.000.000.000.00
Eucalyptus globulus0.761.270.062.091.2011.870.1613.230.884.120.055.05
Euclea racemosa9.212.107.3418.654.090.562.527.162.650.501.514.66
Euphorbia candelabrum5.9037.446.3249.672.6418.412.0823.130.000.000.000.00
Euphorbia tirucalli0.760.000.160.920.240.000.030.270.000.000.000.00
Festuca simensis0.000.000.020.020.960.000.521.480.000.000.000.00
Grewia ferruginea1.122.370.724.222.400.471.194.060.880.030.101.01
Heteromorpha arborescens1.120.010.341.482.640.042.304.992.650.141.994.78
Jasminum abyssinicum5.540.264.4310.235.530.225.9311.687.960.637.7216.32
Juniperus procera1.864.470.937.263.859.251.4814.577.0834.554.3245.95
Lippia adoensis0.000.000.020.020.480.001.281.761.770.002.384.15
Maytenus arbutifolia2.230.421.984.632.160.452.725.333.541.225.7810.54
Maytenus senegalensis2.230.041.393.652.160.591.774.533.540.581.996.11
Mimusops kummel0.000.000.020.020.480.530.191.200.000.000.000.00
Myrsine africana3.700.918.6013.216.010.9612.5519.527.962.8214.1824.96
Ocimum lamiifolium0.760.000.160.920.240.000.030.270.000.000.000.00
Olea europaea6.2721.007.0934.377.2121.188.5136.897.0814.617.6729.36
Olinia rochetiana0.000.000.020.020.240.010.060.310.880.840.151.87
Opuntia ficus-indica0.760.690.131.570.963.300.634.880.000.000.000.00
Osyris quadripartita2.960.721.815.495.771.555.0912.413.541.052.487.06
Otostegia integrifolia0.000.000.020.020.240.000.320.560.000.000.000.00
Pinus patula0.761.970.202.930.000.000.000.000.000.000.000.00
Pittosporum viridiflorum3.333.742.479.544.091.681.897.662.651.400.734.78
Premna schimperi1.120.460.832.410.960.100.361.420.000.000.000.00
Prunus africana0.760.220.161.130.721.470.382.570.880.030.050.96
Pterolobium stellatum1.860.190.762.801.440.110.632.180.880.320.631.84
Rhus glutinosa4.070.511.425.993.130.471.024.616.191.842.7210.76
Rhus natalensis8.486.9813.5028.956.7310.1314.3631.227.967.4411.7027.11
Rhus retinorrhoea1.490.260.652.400.240.000.040.280.000.000.000.00
Rosa abyssincia0.760.060.341.160.720.040.230.990.880.291.312.48
Rumex nervosus0.000.000.020.020.000.000.000.000.880.000.581.47
Senra incana0.000.000.020.020.480.000.060.540.880.000.291.18
Solanum marginatum0.760.000.200.950.000.000.000.000.000.000.000.00

RF = relative frequency, RD = relative density, RBA = relative basal area, and IVI = important value index.