Table 1.

GLMs results of the grazing probability of female and male bison at locally infectious zones (LIZs), female bison at control sites, male elk at LIZs and female elk at control sites. (Predictors included carcass age in years and in days, days since the start of the study, ordinal date and season. Null models performed best for male bison at LIZs and control sites, male elk at LIZs and control sites, and female elk at LIZs. Significant p-values are in bold; significance codes: *p < 0.05; **p < 0.01; ***p < 0.001.)

response	best models	AICc	covariates	estimate	s.e.	z value	Pr(>|z|)
female bison at LIZs	1. carcass age in days + carcass age in years + ordinal date	143.0	carcass age in days	−0.0104	0.0060	−1.728	0.0839
			carcass age in years	5.2126	2.4717	2.109	0.0350*
			ordinal date	0.0105	0.0029	3.681	0.0002***
	2. carcass age in days + carcass age in years + ordinal date + days since start	144.0	carcass age in days	−0.0139	0.0072	−1.941	0.0523
			carcass age in years	6.4912	2.8817	2.253	0.0243*
			ordinal date	0.0104	0.0029	3.627	0.0002***
			days since start	0.0012	0.0011	1.059	0.2898
	3. carcass age in years + ordinal date	144.2	carcass age in years	1.0540	0.4711	2.237	0.0253*
			ordinal date	0.0094	0.0027	3.550	0.0003***
male bison at LIZs	1. carcass age in days + carcass age in years + ordinal date	37.7	carcass age in days	−0.028	0.0161	−1.734	0.0829
			carcass age in years	13.653	6.9202	1.973	0.0485*
			ordinal date	0.0142	0.0075	1.882	0.0598
	2. carcass age in days + carcass age in years + ordinal date + season	38.2	carcass age in days	−0.0559	0.0277	−2.018	0.0436*
			carcass age in years	25.137	11.7768	2.134	0.0328*
			ordinal date	0.0263	0.0122	2.162	0.0306*
			season	−1.1147	0.7473	−1.492	0.1358
female bison at controls	1. ordinal date + season + days since start	139.5	ordinal date	0.0269	0.0094	2.859	0.0043**
			season	−2.0218	0.8077	−3.134	0.0017**
			days since start	−0.0021	0.0010	−1.993	0.0463*
	2. ordinal date + season	141.5	ordinal date	0.0206	0.0084	2.442	0.0146*
			season	−2.0218	0.7274	−2.780	0.0054**
	3. season	146.6	season	−0.3350	0.1816	−1.845	0.0651
male elk at LIZs	1. carcass age in years + days since start	164.7	carcass age in years	−1.3628	0.5870	−2.322	0.0203*
			days since start	0.0034	0.0015	2.211	0.0270*
	2. carcass age in years + days since start + season	165.4	carcass age in years	−1.3913	0.5875	−1.155	0.2482
			days since start	0.0032	0.0015	−2.368	0.0179*
			season	−0.2495	0.2161	2.105	0.0353*
	3. carcass age in days + days since start	166.2	carcass age in days	−0.0033	0.0016	2.081	0.0375*
			days since start	0.0034	0.0016	−2.067	0.0387*
female elk at controls	1. days since start	24.8	days since start	0.0099	0.0091	1.090	0.276