Effect of Fuels Reduction on American Martens and Their Prey

摘要

The effect of a fuels-reduction treatment on small mammals was investigated in211u001elodgepole pine (Pinus contorta Dougl. ex Loud.) and mixed-conifer stands by 211u001etrapping and track surveys in northern Oregon, The number of red squirrel 211u001e(Tamiasciurus hudsonicus) and snowshoe hare (Lepus americus) tracks decreased in 211u001elodgepole pine treatments after harvest. Only two snowshoe hare tracks were 211u001edetected in harvested stands of mixed conifer, compared with 46 tracks in 211u001eunharvested stands. In most treatments, the number of red-backed voles 211u001e(Clethrionomys gapper) decreased and chipmunks (Tamius spp.) increased after 211u001eharvesting.