Table 4.

Food sources targeted by chimpanzees and gorillas during cofeeding events

Family	Species of Plant	Lifeform	Size Class of Trees	Food Part Eaten during Cofeeding	Observed Cofeeding Events
Apocynaceae	Landolphia sp.	liane		fruit	1
Calophyllaceae	Mammea africana	tree	small, medium	fruit	2
Cannabaceae	Celtis tessmannii	tree	large	fruit	1
Fabaceae	Angylocalyx pynaertii	tree	small, medium	fruit	1
	Dialium pachyphyllum	tree	small	fruit	1
	Pterocarpus soyauxii	tree	small, medium, large	fruit	1
	Tetrapleura tetraptera	tree	medium, large	fruit	1
Irvingiaceae	Klainedoxa gabonensis	tree	large	fruit	4
Loganiaceae	Strychnos sp.	liane		fruit	1
Malvaceae	Ceiba pentandra	tree	small	fruit	2
Moraceae	Antiaris toxicaria	tree	large	fruit	1
	Ficus burretiana	hemi-epiphyte, strangler		fig	1
	Ficus elasticoides	hemi-epiphyte, strangler		fig	33
	Ficus exasperata	hemi-epiphyte, strangler		fig	1
	Ficus recurvata	strangler		fig	12
	Ficus wildemaniana	hemi-epiphyte, strangler		fig	2
	Ficus spp.	hemi-epiphyte, strangler		fruit	13
	Treculia africana	tree	medium	seeds, fruit	7
Rubiaceae	Nauclea diderrichii	tree	medium	fruit	1
Sapindaceae	Pancovia laurentii	tree	small, medium, large	fruit	4
	Zanha golungensis	tree	medium, large	fruit	1
Sapotaceae	Chrysophyllum lacourtianum	tree	medium, large	fruit	4
Unknown	Unidentified Unidentified			fruit flowers	1 1

Cofeeding events involved at least one member of both species feeding at the same food source (e.g., in the same tree crown). Lifeform describes plant morphology of the species cofed upon by sympatric apes (see Ndolo Ebika et al., 2018 for the lifeforms of Ficus spp.). Size classes of trees are small (10-30 cm diameter at breast height, DBH), medium (30-80 cm DBH), and large (>80 cm DBH).