By Blake Jackson
The Wisconsin Department of Natural Resources (DNR) announces a planned drawdown of two flowages at the Navarino Wildlife Area: Hanson Flowage and 80 Acre Flowage. Scheduled for this spring, the water level reduction will be gradual, reaching full drawdown by mid-May.
This action serves two critical purposes. Primarily, it allows for essential construction and repairs to the dikes at both locations, scheduled for summer 2024. The project will involve rebuilding the top sections, side slopes, and spillways of the dikes, ensuring the long-term integrity of the infrastructure.
However, the drawdown also offers a significant ecological benefit. It replicates a natural wetland cycle, where exposed areas receive sunlight, stimulating the growth of seed-producing plants. This creates an abundant food source for waterfowl, shorebirds, and other wildlife populations.
"The minimal rainfall in the Navarino watershed last summer resulted in naturally low water levels," explains Jaqi Christopher, DNR Wildlife Biologist. "This 'natural drawdown' provided valuable insights into how vegetation and wildlife responded.
Shorebirds, cranes, and various animals thrived on the exposed mudflats and lush vegetation throughout the summer. Subsequent fall rains then reflooded the area, creating prime feeding grounds for migrating birds, muskrats, and other wildlife."
The DNR anticipates a similar positive response from wildlife with the planned drawdown. Additionally, it facilitates the necessary repairs to the dikes. Once construction is finalized, water levels will be gradually raised throughout late summer and fall. This will create an optimal habitat with a mix of open water, cover, and readily available food for waterfowl and other wildlife during their fall migration.
This initiative demonstrates the DNR's commitment to both infrastructure maintenance and ecological stewardship. The planned drawdown ensures the longevity of the Navarino Wildlife Area's infrastructure while promoting a healthy and thriving environment for diverse wildlife species.
Photo Credit: pexels-ron-lach
Categories: Wisconsin, General