The estimate of Campo Ma'an region, Cameroon in 2011. The estimates were derived from a Central Africa predictive model, by Maisels et al, 2013 and supported by Maisels, 2014 personal communication.
Source:Maisels, F.,Strindberg, S., et. al. (2013). 'Devastating Decline of Forest Elephants in Central Africa'. (Created: 28, May, 2012, Published: 4, March, 2013)http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0059469. Accessed on 21/1/2015