Table 5. Results of the Generalized Additive Model analysis.

Covariate	UBRE Score (%)			Deviance Explained (%)
	Elephant	Gorilla	Chimpanzee	Elephant	Gorilla	Chimpanzee
Ecological
Vegetation	7.4349	12.228	6.506	10.70	2.22	5.39
Distance to bais	7.8486	12.175	-	6.57	2.52	-
Density of yangas	7.4299	11.813	-	10.80	5.21	-
Human
Distance to roads	6.3223	12.215	5.6649	22.90	2.22	15.80
Distance to rivers	8.3302	12.440	6.8469	1.11	0.66	0.59
Distance to settlements	7.7767	12.131	5.6775	7.17	3.01	15.50
Logging history	7.4553	12.429	6.7482	10.40	0.63	1.86
Management
Distance to NNNP boundary	5.9304	9.504	5.5046	27.00	22.5	17.80
Management status	7.7956	11.343	5.7975	6.78	8.70	14.00
Stratum	4.6769	9.826	4.9794	40.50	20.30	25.00
X coordinate	4.9942	10.545	6.0642	37.50	15.20	11.20
Y coordinate	5.4343	9.082	4.8911	32.80	26.1	26.50
Combined model	1.7149	7.0473	4.0743	74.9	41.70	38.00