Population Survey

This dataset comprises dung count line transect data from a survey conducted in the Djoua-Ivindo landscape, Republic of the Congo, completed in May 2015. The survey estimated an elephant population of 2 130 (95% c.i. 1 387 - 3 272; CV 21.85%) within the 11415 km² survey area. 75 x 2km transects were walked in a single stratum, totalling 148.28km. Elephant density was recorded as 0.19 (95% c.i. 0.12 - 0.29; CV 21.85%) per km². The dung density was 324.08 per km² (95% c.i. 210.97 - 497.83; CV 21.85%) and the encounter rate 1.308 (95% c.i. 0.866 - 1.977). The population estimate was modelled using parameters of dung production of 18.07 (Hedges et al. 2012) and decay rate of 96.1 (Nzooh et al. 2015).