Table 5 Population density estimates of the Nigeria-Cameroon chimpanzee (Pan troglodytes ellioti) at the Mbam-Djerem National Park compared to other surveys

MDNP (dense forest stratum), Cameroon

88

0.88 (0.55–1.41)

This study

MDNP (forest-savannah stratum), Cameroon

120

0.55 (0.19–1.76)

MDNP (all data combined), Cameroon

221

0.33 (0.12–0.88)

Ngel Nyaki Forest Reserve, Nigeria

162.8

1.5

[63]

Ngel Nyaki Forest Reserve, Nigeria

1.67

[25]

Taï National Park, Ivory Coast

91.22

0.89

[12]