The food habits of four small-sized species of Mormyridae from the floodplain pools of the Sokoto-Rima river basin, Nigeria

The diet of four species of the family Mormyridae, commonly found in the floodplain pools of the Sokoto-Rima river basin, Nigeria, is described. All four species are small-sized and show a degree of food overlap. Evidence is presented, however, that resource partitioning occurs enabling co-existence of the species in a habitat where food resources become increasingly limited after the cessation of the rains.