Why TNC Selected This Site
Brown's Lake Bog represents a very rare plant community in Ohio. The naturally acidic properties of sphagnum, coupled with its ability to insulate the water below from rapid air temperature changes, provided the right environment for the creation of the bog and its relict boreal plant communities. More than 20 rare plants are found here.
The greatest threat to the integrity of the glacial relict bog community is succession. Some of this may be unnaturally accelerated due to increased runoff and changes in water chemistry, possibly caused by surrounding agricultural areas. Without intervention, the entire kettle depression would become a swamp forest. If woody plants are permitted to encroach upon the sphagnum mat, these shrubs and trees would eventually shade out the bog species that make this area unique.
What TNC Has Done/Is Doing
The Nature Conservancy is working to maintain the existing open bog mat and expand the open mat to include currently shrubbed over areas around the bog lake. This area has been very heavily encroached upon by shrub succession over the past half century. The Conservancy also manages the preserve for visitor use by maintaining the boardwalk and trails.