Table 1. Scat correction factors and food-specific energy values applied to food items identified in scats or from observation of feeding sign at site visits of grizzly and black bear locations, Grand Teton National Park and vicinity, Wyoming, USA, 2004–2006.

Total energy was calculated as the mean of individual foods identified to genus or higher taxonomic group (e.g., Formicidae [S1 Table]).

	Scat correction factor	Energy values (kcal/g)f			Mean total energy (kcal/g)
Food type		Protein	Carbohydrate	Lipid	Dry basis	Fresh basis
AGVEGa	0.3c	3.47	4.07	8.37	2.43	0.98
BGVEGb	0.8c	2.78	4.03	8.37	2.49	1.29
Cambium	0.4e	3.47	4.07	8.37	2.46	0.24
Fruit	1.0c	3.36	3.60	8.37	2.96	1.43
Nut	1.5c	3.47	4.07	8.37	3.35	3.15
Fungi	1.0e	2.62	4.07	8.37	2.96	0.31
Insect	1.1c	4.27	3.82	9.03	4.74	2.77
Vertebrate (small)	1.5d	4.27	3.82	9.03	4.61	1.27
Vertebrate (large)	2.0d	4.27	3.82	9.03	5.25	1.52

^a Above-ground vegetation

^b Below-ground vegetation

^c Hewitt and Robbins 1996

^d Persson et al. 2000

^e Extrapolated from above based on non-digestible content

^f Merrill and Watt 1973