Table 2. Presence of the Mule Deer (Odocoileus hemionus) and the Puma (Puma concolor) across camera traps, with expected versus observed incidence of joint presence.

Data were aggregated by calendar day for the focal species alone (i.e., camera-trap records of species other than the deer and Puma were not considered) and restricted to cameras that had at least one presence of the Puma. Expected values were estimated from a joint probability under the assumption that the deer and Puma occur independently, meaning observed joint (i.e., same day) presence much lower than expected implies that occurrence is not independent.

		proportion of days with a presence		joint probability
camera	n	Mule Deer	Puma	expected	observed
AG CH	77	0.675	0.325	17	0
AU TR	509	0.986	0.022	11	4
BL ST	66	0.924	0.091	6	1
BO SP	618	0.989	0.013	8	1
BO TR	582	0.930	0.124	67	31
CO MI	182	0.967	0.038	7	1
CO TR	173	0.908	0.104	16	2
DO CA	106	0.830	0.179	16	1
DO CA2	50	0.900	0.120	5	1
DO CA3	29	0.897	0.103	3	0
DR SP	207	0.807	0.232	39	8
DR SP2	149	0.926	0.121	17	7
EA MW	445	0.971	0.043	18	6
EA MW2	41	0.976	0.024	1	0
FR RO	231	0.939	0.087	19	6
FU BR	204	0.941	0.069	13	2
GY FO	243	0.930	0.119	27	12
LA RO	319	0.937	0.085	25	7
LI ME	131	0.832	0.198	22	4
LI ME2	35	0.771	0.286	8	2
LI SI	141	0.816	0.270	31	12
LO WE1	121	0.992	0.008	1	0
LO WE2	274	0.737	0.281	57	5
ME SP	10	0.800	0.200	2	0
MO FR1	215	0.837	0.181	33	4
MO FR3	178	0.781	0.247	34	5
OV TR	195	0.964	0.036	7	0
RA TR	77	0.987	0.026	2	1
RO CA	134	0.993	0.007	1	0
RO CA2	35	0.857	0.171	5	1
SO GY	204	0.868	0.157	28	5
UP WE	133	0.932	0.075	9	1
WE SP	458	0.985	0.026	12	5
WE TR1	791	0.991	0.059	47	40
WE TR2	627	0.994	0.038	24	20
WE TR3	359	0.997	0.028	10	9
WE WI	71	0.930	0.070	5	0