Research Article
Tree Species Richness, Diversity, and Vegetation Index for Federal Capital Territory, Abuja, Nigeria
Table 2
Biodiversity indices and growth parameters of individual trees in the urban areas (Abuja city) of the Federal Capital Territory, Nigeria.
| S/N | Tree species | Family | FQ | MHt | MDbh | B.A | Vol. | RD | RDO | IVI |
| 1 | Adansonia digitata | Bombacaceae | 3 | 4.2 | 51.0 | 1.84 | 7.72 | 0.43 | 3.60 | 2.02 | 2 | Albizia falcata | Fabaceae | 1 | 19.8 | 16.0 | 0.02 | 0.40 | 0.14 | 0.04 | 0.09 | 3 | Albizia ferruginea | Fabaceae | 1 | 17.0 | 138.0 | 1.50 | 25.43 | 0.14 | 2.93 | 1.54 | 4 | Alstonia boonei | Apocynaceae | 1 | 14.6 | 86.4 | 0.59 | 8.56 | 0.14 | 1.15 | 0.65 | 5 | Anacardium occidentale | Anacardiaceae | 1 | 18.8 | 32.0 | 0.08 | 1.51 | 0.14 | 0.16 | 0.15 | 6 | Anogeissus leiocarpa | Combretaceae | 2 | 17.1 | 84.1 | 2.22 | 37.96 | 0.29 | 4.35 | 2.32 | 7 | Azadirachta indica | Meliaceae | 16 | 19.1 | 11.9 | 2.86 | 54.56 | 2.31 | 5.60 | 3.96 | 8 | Bambusa vulgaris | Poaceae | 3 | 16.6 | 12.8 | 0.12 | 1.93 | 0.43 | 0.23 | 0.33 | 9 | Bauhinia monandra | Fabaceae | 5 | 12.7 | 11.7 | 0.27 | 3.44 | 0.72 | 0.53 | 0.63 | 10 | Bauhinia polyantha | Leguminosae | 1 | 18.5 | 105.0 | 0.87 | 16.02 | 0.14 | 1.70 | 0.92 | 11 | Blighia sapida | Sapindaceae | 1 | 13.4 | 65.0 | 0.33 | 4.45 | 0.14 | 0.65 | 0.40 | 12 | Bosqueia angolensis | Moraceae | 24 | 18.8 | 3.2 | 0.46 | 8.66 | 3.47 | 0.90 | 2.19 | 13 | Caesalpinia pulcherrima | Fabaceae | 3 | 11.7 | 6.0 | 0.03 | 0.30 | 0.43 | 0.05 | 0.24 | 14 | Calliandra calothyrsus | Leguminosae | 7 | 8.6 | 8.3 | 0.26 | 2.26 | 1.01 | 0.52 | 0.76 | 15 | Callitris intratropica | Cupressaceae | 1 | 16.8 | 112.0 | 0.99 | 16.55 | 0.14 | 1.93 | 1.04 | 16 | Cassia pleurocarpa | Caesalpiniaceae | 7 | 8.4 | 4.6 | 0.08 | 0.69 | 1.01 | 0.16 | 0.59 | 17 | Casuarina equisetifolia | Casuarinaceae | 11 | 10.8 | 6.6 | 0.41 | 4.41 | 1.59 | 0.80 | 1.19 | 18 | Ceiba pentandra | Bombacaceae | 6 | 9.5 | 21.6 | 1.31 | 12.48 | 0.87 | 2.57 | 1.72 | 19 | Citrus aurantifolia | Rutaceae | 9 | 14.2 | 7.9 | 0.39 | 5.61 | 1.30 | 0.77 | 1.04 | 20 | Cleistopholis patens | Annonaceae | 5 | 15.6 | 17.4 | 0.59 | 9.27 | 0.72 | 1.17 | 0.94 | 21 | Cocos nucifera | Arecaceae | 11 | 8.4 | 5.3 | 0.26 | 2.22 | 1.59 | 0.52 | 1.05 | 22 | Cola gigantean | Malvaceae | 1 | 15.8 | 109.0 | 0.93 | 14.75 | 0.14 | 1.83 | 0.99 | 23 | Corymbia citriodora | Myrtaceae | 1 | 13.4 | 36.0 | 0.10 | 1.36 | 0.14 | 0.20 | 0.17 | 24 | Dacryodes edulis | Burseraceae | 1 | 12.6 | 74.8 | 0.44 | 5.54 | 0.14 | 0.86 | 0.50 | 25 | Daniellia oliveri | Leguminosae | 20 | 12.8 | 7.2 | 1.62 | 20.70 | 2.89 | 3.17 | 3.03 | 26 | Delonix regia | Fabaceae | 37 | 14.2 | 1.2 | 0.17 | 2.38 | 5.35 | 0.33 | 2.84 | 27 | Drypetis spp. | Nymphalidae | 4 | 15.0 | 23.1 | 0.67 | 10.06 | 0.58 | 1.31 | 0.95 | 28 | Elaeis guineensis | Arecaceae | 1 | 14.2 | 47.8 | 0.18 | 2.55 | 0.14 | 0.35 | 0.25 | 29 | Eucalyptus camaldulensis | Myrtaceae | 1 | 11.0 | 42.0 | 0.14 | 1.52 | 0.14 | 0.27 | 0.21 | 30 | Eucalyptus citriodora | Myrtaceae | 32 | 17.6 | 4.3 | 1.46 | 25.65 | 4.62 | 2.86 | 3.74 | 31 | Eucalyptus forrestiana | Myrtaceae | 10 | 11.0 | 4.2 | 0.14 | 1.50 | 1.45 | 0.27 | 0.86 | 32 | Euphorbia dendroides | Euphorbiaceae | 1 | 8.0 | 52.0 | 0.21 | 1.70 | 0.14 | 0.42 | 0.28 | 33 | Ficus goliath | Moraceae | 14 | 15.5 | 5.0 | 0.38 | 5.93 | 2.02 | 0.75 | 1.39 | 34 | Gmelina arborea | Verbenaceae | 72 | 14.0 | 1.2 | 0.63 | 8.83 | 10.40 | 1.24 | 5.82 | 35 | Hildegardia baterii | Malvaceae | 1 | 15.7 | 89.6 | 0.63 | 9.90 | 0.14 | 1.24 | 0.69 | 36 | Hura crepitans | Euphorbiaceae | 8 | 11.6 | 10.8 | 0.58 | 6.74 | 1.16 | 1.14 | 1.15 | 37 | Jatropha curcas | Euphorbiaceae | 1 | 4.0 | 16.0 | 0.02 | 0.08 | 0.14 | 0.04 | 0.09 | 38 | Khaya senegalensis | Meliaceae | 32 | 17.6 | 4.3 | 1.46 | 25.65 | 4.62 | 2.86 | 3.74 | 39 | Lophira alata | Ochnaceae | 1 | 15.2 | 115.0 | 1.04 | 15.79 | 0.14 | 2.04 | 1.09 | 40 | Lophira procera | Ochnaceae | 3 | 12.3 | 15.4 | 0.17 | 2.07 | 0.43 | 0.33 | 0.38 | 41 | Mangifera indica | Anacardiaceae | 20 | 11.1 | 2.1 | 0.13 | 1.48 | 2.89 | 0.26 | 1.58 | 42 | Milicia excelsa | Moraceae | 2 | 19.6 | 57.5 | 1.04 | 20.36 | 0.29 | 2.04 | 1.16 | 43 | Milicia regia | Moraceae | 1 | 14.4 | 90.1 | 0.64 | 9.18 | 0.14 | 1.25 | 0.70 | 44 | Millettia thonningii | Fabaceae | 5 | 13.5 | 14.5 | 0.41 | 5.59 | 0.72 | 0.81 | 0.77 | 45 | Morinda lucida | Rubiaceae | 1 | 14.8 | 68.8 | 0.37 | 5.50 | 0.14 | 0.73 | 0.44 | 46 | Moringa oleifera | Moringaceae | 2 | 17.0 | 16.5 | 0.09 | 1.45 | 0.29 | 0.17 | 0.23 | 47 | Nauclea diderrichii | Rubiaceae | 2 | 15.5 | 68.0 | 1.45 | 22.49 | 0.29 | 2.84 | 1.57 | 48 | Nauclea latifolia | Rubiaceae | 2 | 14.3 | 96.1 | 2.90 | 41.45 | 0.29 | 5.68 | 2.99 | 49 | Parkia biglobosa | Fabaceae | 26 | 16.3 | 4.5 | 1.09 | 17.80 | 3.76 | 2.14 | 2.95 | 50 | Pueraria phaseoloides | Leguminosae | 1 | 13.5 | 132.0 | 1.37 | 18.48 | 0.14 | 2.68 | 1.41 | 51 | Pinus caribaea | Pinaceae | 7 | 11.9 | 8.0 | 0.25 | 2.95 | 1.01 | 0.49 | 0.75 | 52 | Pinus caribaea | Pinaceae | 6 | 7.1 | 14.7 | 0.61 | 4.36 | 0.87 | 1.20 | 1.04 | 53 | Plumeria alba | Apocynaceae | 19 | 12.1 | 3.7 | 0.39 | 4.78 | 2.75 | 0.77 | 1.76 | 54 | Polyalthia longifolia | Annonaceae | 31 | 13.2 | 2.5 | 0.48 | 6.32 | 4.48 | 0.94 | 2.71 | 55 | Psidium guajava | Myrtaceae | 3 | 19.4 | 14.2 | 0.14 | 2.77 | 0.43 | 0.28 | 0.36 | 56 | Ravenala madagascariensis | Strelitziaceae | 1 | 15.4 | 36.0 | 0.10 | 1.57 | 0.14 | 0.20 | 0.17 | 57 | Ricinodendron heudelotii | Euphorbiaceae | 1 | 6.8 | 171.0 | 2.30 | 15.62 | 0.14 | 4.50 | 2.32 | 58 | Roystonea dunlapiana | Arecaceae | 24 | 16.6 | 5.6 | 1.40 | 23.31 | 3.47 | 2.75 | 3.11 | 59 | Roystonea regia | Arecaceae | 21 | 17.8 | 3.8 | 0.49 | 8.79 | 3.03 | 0.97 | 2.00 | 60 | Senna siamea | Fabaceae | 6 | 21.2 | 14.8 | 0.62 | 13.13 | 0.87 | 1.21 | 1.04 | 61 | Spathodea campanulata | Bignoniaceae | 1 | 22.2 | 212.3 | 3.54 | 78.60 | 0.14 | 6.94 | 3.54 | 62 | Tectona grandis | Lamiaceae | 11 | 16.0 | 10.7 | 1.09 | 17.50 | 1.59 | 2.14 | 1.87 | 63 | Terminalia catappa | Combretaceae | 37 | 7.9 | 0.7 | 0.05 | 0.37 | 5.35 | 0.09 | 2.72 | 64 | Terminalia ivorensis | Combretaceae | 42 | 9.1 | 0.7 | 0.08 | 0.70 | 6.07 | 0.15 | 3.11 | 65 | Terminalia macroptera | Combretaceae | 31 | 11.6 | 3.5 | 0.92 | 10.71 | 4.48 | 1.81 | 3.14 | 66 | Terminalia superba | Combretaceae | 9 | 12.7 | 13.6 | 1.17 | 14.85 | 1.30 | 2.29 | 1.80 | 67 | Treculia africana | Moraceae | 1 | 6.0 | 85.8 | 0.58 | 3.47 | 0.14 | 1.13 | 0.64 | 68 | Vachellia nilotica | Fabaceae | 17 | 9.2 | 3.6 | 0.30 | 2.74 | 2.46 | 0.58 | 1.52 | 69 | Vitex doniana | Verbenaceae | 2 | 16.4 | 42.5 | 0.57 | 9.31 | 0.29 | 1.11 | 0.70 |
| | | | 692 | | | 51.02 | 752.75 | | | |
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FQ: number of tree stems in the city, B.A.: basal area of trees in the city, Vol.: volume of trees in the city.
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