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Abstract

Snap-traps were set in a variety of habitats in Teton National Forest for a total of 815 trap-nights during the first three weeks of August 1955. These habitats included a whitebark pine forest. During the trapping period 149 animals were caught, mainly Peromyscus maniculatus artemisiae, providing 131 stomachs the contents of which could be satisfactorily examined. In each case the examination was restricted to a rapid qualitative survey of the items present. A careful quantitative re-examination of each stomach will be made this winter. A collection of seeds and fruits was taken from each area where necessary to help in the recognition of unfamiliar items. Project Number 84.

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