Many tourism programmes involve habituation to allow the approach of tourists to a viewing distance of 7-20 metres, which would be impossible with unhabituated apes. |
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Sites in Central Africa that offer forest-walks with a chance of viewing unhabituated or semi-habituated chimpanzees include Lobéké in Cameroon, Loango in Gabon, Taï in Côte d'Ivoire and Gola in Sierra Leone. |
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Conversely, during repeated censuses in the Virungas, the proportion of immature mountain gorillas has been higher in habituated than unhabituated groups. |
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In addition to these, 25 unhabituated groups were found, containing 227 individuals along with 11 lone silverback males, giving a total uncorrected population count of 314 individuals. |
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