Table 1. Summary of the focal follow data for each male chimpanzee.

The total number of focal observation hours per individual before, during and after the alpha takeover and the total number of pant hoots and aggressive interactions (focal could be aggressor or victim) observed during these focal follows.

	Hours of observation from focal follows			# of pant hoots emitted	# of aggressive interactions
	Before	During	After
Jacobo	NA	11.5	45	75	21
Kuba	89.5	27.5	96.5	235	56
Romario	NA	NA	74	121	8
Utan	48.5	11.5	23.5	64	34
Woodstock	99	25.5	114	148	38