Saving Nigeria's forest elephants

Nigeria risks losing all its forest elephants. This is what Rosemary Iriowen Egonmwan, professor of environmental physiology of animals at the University of Lagos, and Bola Oboh, professor of genetics at the Department of Cell Biology and Genetics at the University of Lagos, found when they went looking for them.

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"Nigeria is one of 37 African countries where elephants are found in the wild. Savannah elephants (Loxodonta africana) can be found in the north, and forest elephants (Loxodonta cyclotis) in the south.

It’s not clear how many elephants there are in Nigeria. Eighteen years ago, the African Elephant Study Report estimated that there were just 94 elephants left in the country. In 2021, it was estimated that there could be about 400 elephants in areas not systematically surveyed.

What we do know, however, is that the numbers and ranges of elephants in Nigeria have declined greatly over time. The main cause of this has been human activity, like logging and agriculture, which threaten their survival by reducing their natural habitat. Some elephant populations have been lost. Others exist only in small, fragmented areas.

Elephant surveys had not been carried out in southern Nigeria for over a decade, and sightings of forest elephants are rare. Forest elephants are of particular interest because they’re classified as Critically Endangered by the International Union for the Conservation of Nature.

We carried out a study to establish their presence and determine the factors affecting their conservation.

We visited four protected areas in two national parks and one forest reserve in southern Nigeria. We did find small populations, totalling 40 forest elephants. This is not a viable population in the long run as it has been suggested that ‘viable’ elephant populations may range from 400 to 6 000 individuals.

Their survival is being threatened for six reasons, in particular the impact of people’s activities.

PRESENCE AND DISTRIBUTION OF ELEPHANTS

We visited Okomu National Park; Omo Forest Reserve; and the Okwango and Oban Divisions of the Cross River National Park.