A Forest in Recovery
This summer, 5 acres of pine trees will be removed from Brower Lake Nature Preserve. But why would we cut down perfectly healthy trees? Unlikely as it may seem, sometimes cutting down trees is the best way to help an ecosystem flourish. Removing pine trees is part of our management plan to restore Brower Lake to its native, and critically important, oak woodland ecosystem.
Brower Lake Nature Preserve, established in 2002 with the generous support of the Wege Foundation, is a natural gem in an otherwise developed area. Its impressive forest is full of winding trails and seasonal carpets of wildflowers. There’s a bog, home to a host of bizarre and fascinating plants. In addition to the mature oak-hickory forest, Brower Lake harbors one of Michigan’s rarest ecosystems: an oak barren. An oak barren is essentially a prairie, although sometimes you’ll find a shrubby understory, with scattered oaks throughout. Many native Michigan species depend on this disappearing ecosystem, especially birds, butterflies, and grasshoppers, among others.
This haven is threatened – not by developers looking to build another strip mall or fast food hub – but by other trees. In the 1800s, the Brower Lake region was logged, and much of the area was replanted with Red Pine (Pinus resinosa) and Scotch Pine (Pinus sylvestris). While there are many Michigan ecosystems that claim majestic pine species, Brower Lake’s oak woodland (meaning both oak forest and oak barrens) is not one of them. In this area, red and scotch pine do great damage to the native ecosystem. Many plants native to this ecosystem need direct sunlight, but the pine canopies crowd together and shade the understory densely. Additionally, pine needles fall and collect into a thick carpet on the forest floor, suffocating seedlings. These impacts change the dynamic of the ecosystem, edging out the increasingly important oak barren.
Removing pines will help restore oak woodland and increase biodiversity and wildlife habitat. The pine stand here does not provide suitable homes for much of our Michigan wildlife. Without pines shading the area, most plant species native to oak woodlands will recover on their own. Over the next few years, areas that need extra help will be planted with native trees, grasses, and wildflowers. The photo below shows an example of a healthy oak barrens at Maas Family Nature Preserve, a nearby Land Conservancy preserve.
In the years to come, bear witness to how this ecosystem bounces back to the lush oak woodland that is such an iconic and important biodiverse feature of Michigan’s landscape.
Funding from the timber sale will go towards the restoration of the area. This restoration project is made possible through partnerships with Spalted Banjo Consulting, the Sustainable Resources Alliance, and Cherry Creek Forestry.