Table 1. Summary information for 21 grizzly bears fitted with GPS collars to quantify use of the Canadian Pacific Railway in Banff and Yoho National Parks in Alberta, Canada.

Bear ID	Sex	Age	Mass (kg)	Percent days on rail	δ34S	δ15N	Number of associated scats
64	Female	Adult	95	4.7	5.4	3.7	4
72	Female	Adult	83	2.7	11.2	4.2	18
122	Male	Adult	210	23.0	9	7	5
125	Male	Adult	108	1.2	7.5	3.3	0
126	Male	Adult	110	6.4	9	5	25
128	Male	Subadult	32	42.7	6.7	3.4	41
130	Female	Adult	110	7.3	5	4.4	13
131	Female	Adult	105	0	3.7	3.5	16
132	Male	Adult	90	0.7	4.6	5	0
133	Female	Adult	78	1.6	11.1	3.2	4
134	Male	Adult	190	6.7	8.7	4.9	6
135	Female	Adult	118	0	3.4	4	10
136	Male	Adult	180	3.4	7	6.4	4
138	Female	Adult	92	0	10.1	3	6
140	Male	Adult	111	0	11	3.5	0
141	Male	Adult	134	6.5	10.3	3.7	2
142	Female	Subadult	54	20.4	11.4	4.3	5
143	Female	Subadult	50	8.4	10.9	4	3
144	Male	Subadult	56	6.5	7	4.1	8
148	Female	Subadult	61	5.4	6.9	4.2	8
149	Male	Subadult	80	20	7.5	3.3	5