Food Habits of Mountain Goats, Mule Deer, and Cattle on Chopaka Mountain, Washington, 1977-1980

Abstract
The seasonal food habits of mountain goats, mule deer and cattle on Chopaka Mountain, Washington (1977-1980) were determined by fecal analysis. Graminoids represented 84% of the fall diet of cattle, the only period when cattle occurred within the mountain goat range. Mountain goats utilized graminoids (42%) and shrubs (31%) primarily; mule deer consumed shrubs (45%) and conifers (29%). Dietary overlap was greatest between mountain goats and mule deer (37%) and mountain goats and cattle (32%) and minimal between mule deer and cattle (15%). Considerable intra- and inter-seasonal variation was experienced for all 3 spp.

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