Elephant Database
African Elephant Specialist Group

Population Survey

Phenotype: Forest (based on genetic evidence gathered on-site)
Data contributed by reuben@refleqt.co.za, last updated 15/07/2022
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5260 km²
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This dataset comprises dung count recce and line transect data from a survey conducted in the Dja Biosphere Reserve, Cameroon, in March - June 2015. The survey estimated an elephant population of 420 within the 5 260 km² survey area. This represents an 84% decline in the elephant population between 1995 and 2015, and is the first survey to have covered the whole of the Reserve. 205 x 2.5km transects were walked in a single stratum, totalling 495.3km. Dung density was recorded as 200 per km², with an encounter rate of 0.48 per km. The population estimate was modelled using parameters of dung production = 19.77 and decay rate = 90, as measured in Reserve de Santchou, Cameroon (Tchamba Martin, 1992).
Source:MINFOF/UICN. (2015). Caractérisation de la population de grands et moyens mammifères dans la Reserve de Faune du Dja: Potentiel et menaces (p. 59). Yaoundé, Cameroun.
IUCNSpecies Survival Commission

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