Table 2.

Coefficient of overlap (∆), coefficient of determination (R), and Watson’s U2 statistic (U2) comparing activity curve estimates (derived from 7 sub-sample sizes of camera detections) to the estimates derived from the respective complete dataset of active and passive camera trapping detections of 4 species, Fort Bragg Military Installation, North Carolina, USA, 2011–2012.

Species	Method	Test	500	250	100	50	25	20	10
Coyote	Active	∆		0.97	0.89	0.87	0.83	0.8	0.67
		R		0.99*	0.95*	0.96*	0.80*	0.78*	0.63*
		U2		0.007	0.07	0.05	0.09	0.10	0.06
	Passive	∆	0.97	0.91	0.91	0.87	0.86	0.84	0.71
		R	0.99*	0.94*	0.95*	0.93*	0.91*	0.87*	0.77*
		U2	0.02	0.21*	0.09	0.04	0.02	0.05	0.07
Fox squirrel	Active	∆			0.98	0.88	0.93	0.73	0.79
		R			0.99*	0.94*	0.97*	0.8*	0.85*
		U2			0.003	0.06	0.03	0.12	0.05
	Passive	∆				0.92	0.89	0.9	0.71
		R				0.97*	0.94*	0.95*	0.76*
		U2				0.03	0.03	0.02	0.06
Wild turkey	Active	∆			0.94	0.88	0.8	0.78	0.78
		R			0.98*	0.96*	0.91*	0.84*	0.83*
		U2			0.02	0.08	0.05	0.06	0.06
	Passive	∆				0.94	0.87	0.83	0.84
		R				0.99*	0.92*	0.90*	0.91*
		U2				0.01	0.03	0.05	0.02
White-tailed deer	Active	∆	0.94	0.98	0.9	0.91	0.88	0.82	0.79
		R	0.98*	0.97*	0.94*	0.96*	0.91*	0.9 *	0.83 *
		U2	0.11	0.05	0.03	0.04	0.02	0.08	0.05
	Passive	∆			0.94	0.85	0.9	0.74	0.62
		R			0.98*	0.89*	0.94*	0.69*	0.56*
		U2			0.02	0.07	0.03	0.13	0.13

*Denotes significance at alpha = 0.05. Blank spaces were not tested because the sample size was not available.