Table 1.

Overview of research sites

	Goualougo Triangle	Mondika (Djéké Triangle)
Location	Nouabalé Ndoki National Park, Republic of Congo	Kabo Forestry Management Unit, Republic of Congo
Ape density estimates	1.43 apes/km2	1.47 apes/km2
Annual rainfall	1714.3 ± 177.1 mm (2007 to 2016)	1915.3 ± 107.5 mm (2015 to 2018)
Minimum temperature	21.4 ± 0.2 °C	21.6 ± 0.3 °C
Maximum temperature	24.8 ± 1.6 °C	27.3 ± 0.9 °C

Rainfall and temperature are mean annual values