Management impacts on <i>Carex assiniboinensis and Cardamine concatenata</i> on the Ottawa National Forest

A population of Carex assiniboinensis W. Boott (assiniboia sedge) was monitored during the season before and for six years following a winter selection harvest in a sugar maple-eastern hemlock stand on the Ottawa National Forest in the Upper Peninsula of Michigan. A mean increase in sedge presence of 136% was observed over the seven years of monitoring. General linear regression of sedge presence data indicated a significantly positive trend over the natural log-transformation of time. Results of the study indicate that winter selection logging in northern hardwood forests may benefit populations of this threatened species over the short term.