Table 2.

Factors and interaction terms from the generalized linear mixed models used to analyze four aspects of approaching behavior responses of the yellow-breasted boubou to playbacks simulating intrusion of a stranger pair singing three different duet types

	Latency to approach speaker (s)			Closest approach to the speaker (m)			Time spent within 10 m to speaker			Number of flights
	F	df	P	F	df	P	F	df	P	F	df	P
Treatment	2.46	2,94	0.090	4.93	2,94	0.009	6.22	2,94	0.003	1.58	2,94	0.213
Order	5.93	2,94	0.004	4.00	2,94	0.022	3.77	2,94	0.027	8.08	2,94	0.001
Sex	0.98	1,94	0.325	0.34	1,94	0.562	0.15	1,94	0.696	0.01	1,94	0.906
Treatment × Order	1.16	4,94	0.334	0.96	4,94	0.433	1.06	4,94	0.380	3.66	4,94	0.008
Treatment × Sex	0.19	2.94	0.824	0.00	2,94	0.997	0.03	2,94	0.971	0.19	2,94	0.830
Order × Sex	0.29	2,94	0.749	0.00	2,94	0.996	0.04	2,94	0.964	0.02	2,94	0.981

The values in bold indicates significance at P ≤ 0.05 level.