Using supplemental feed to reduce livestock browsing on aspen suckers

A putative contributor to the declining aspen ( Populus tremuloides Michx.) population levels in the western United States is browsing by livestock (cattle and sheep). This study's objective was to reduce browsing pressure upon reproductive suckers by luring livestock away from aspen stands via dehydrated-molasses supplement. Results suggested that the supplement did not reduce the number of browsed suckers. Also, wildlife (deer and elk) browsed substantial levels of suckers (49%) by the end of the livestock grazing season; therefore, we recommend that their population levels be reduced. Sheep also browsed suckers heavily (69%); hence, a herder should be used to reduce the time that they spend within aspen stands. Conversely, cattle browsed few suckers (6%), and do not prefer them when stocking rates are below moderate levels. Adherence to appropriate wildlife and livestock management practices is essential to promote aspen stand regeneration.