Nigeria is located in the western part of Africa between latitudes 4° 16´N and 13°52´N; and between longitudes 2°49´E and 14°37´E. It occupies a total land area of 923,768km2 with a population of 120million people. By virtue of its geographical extent, it spans different climatic and ecological zones. The variable climatic conditions and physical features have endowed Nigeria with a very rich biodiversity. The mean annual rainfall ranges from about 450 mm in the northeast to about 3500 mm in the coastal south-east, with rains falling within 90 to 290 days respectively. The mean annual temperature ranges from 21°C in the south to 30°C in the north with extremes of 14°C and 45°C and an altitude range of 0 - 1000m above sea level. Nigeria is rich in Biodiversity. The country is endowed with a variety of plant and animal species. There are about 7, 895 plant species identified in 338 families and 2, 215 genera . There are 22, 000 vertebrates and invertebrates spec...
Science, Soil, and Soul.