Background/Question/Methods
Horicon Marsh is recognized as an outstanding example of wetland restoration and wildlife conservation. However, the marsh we see today is not what it was one hundred years ago. Since the time of modern settlement many changes that have taken place at Horicon Marsh, including the damming and flooding of the marsh, market hunting of its ducks, and the eventual ditching and draining efforts to turn this into farmland. When these efforts failed, a local campaign was organized to restore the marsh for wildlife purposes. While the marsh has recovered and today supports a wide array of wildlife, it is also a highly altered wetland system.  In spite of these ecological changes, Horicon Marsh is recognized as a “Wetland of International Importance” and a “Globally Important Bird Area”.
Results/Conclusions
These awards testify to the resilience of nature and the tremendous ecological value of this marsh. However, while Horicon Marsh has made a great comeback, we cannot assume that it will always remain as a productive area for all of its wildlife. Today’s wetland laws and the status of this marsh as a state wildlife area and national wildlife refuge protect the marsh and the habitat so vital to its wildlife. However, outside influences from non-point pollution are beginning to show some early warning signs of potential ecological impacts that appear to affect different plants and animals in different ways. The interactions of hyper-sedimentation and nutrient inputs are exhibiting a chain-reaction of events that are providing opportunities for several generalist species while at the same time restricting opportunities for numerous wetland specialists. This presentation will examine the past, present and future of Horicon Marsh and provide a platform for discussion on a variety of aspects related to this marsh, its wildlife, management, and conservation issues.