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

FQ: number of tree stems in the city, B.A.: basal area of trees in the city, Vol.: volume of trees in the city.