Forest Structure and Tree Species Diversity of the Abasumba Globally Significant Biodiversity Area, Ghana

We studied the forest structure and tree species diversity with diameter-at-breast-height (dbh) ≥ 10 cm in Abasumba Globally Significant Biodiversity Area Ghana. Sixteen 25 m * plots were demarcated trees dbh inventoried following International Plant Nomenclature Index. The characteristic three–storey of tropical forests was shown, 68.7% lower 4.5–18 middle 18–30 storeys. A majority 91.4% 342 10–30 a least 8.6% 32 31–60 had ˃ 60 cm. Total 46 species, 38 genera 17 families, mean Alpha, Shannon Simpson’s Diversity indices 13.9, 1.44 0.07 importance value index 300.0 for 374 ha-1 recorded. families Sterculiaceae, Meliaceae, Leguminosae, Ulmaceae Bombacaceae encountered while Triplochiton scleroxylon, Cola millenii, Trichilia monadelpha, Hymenostegia afzelii, Celtis mildbraedii, Ceiba pentandra Ficus sur most occurring 54.0% accounting 52.0% IVI all trees. Blighia sapida, Bridelia grandis, Dialium guineense, Draceana arborea, sur, Holarrhena floribunda, Holoptelea Margaritaria discoidea, Rauvolfia vomitoria, Trilepisium madagascariense, Vitex ferruginea, Ximenia americana Xylia evansii one individual 10,000 m2 area indicated that they are rare should be given conservation priority reserve.