To protect waterfowl, the biologists must assure a suitable habitat. The North American Waterfowl Management Plan specifies the characteristics that the landscape must guarantee for the subsistence of waterfowl. This approach is based on the sustainable landscape management. Many economical activites such as farming, forestry, mining and fishing can effect the waterfowl habitat. The organizations that participate in the Plan take part in the political, economical and social planning of the landscapes. These partners favor the characteristics that assure the subsistance of waterfowl and other types of habitats, including those in the process of disappearing. To obtain more complete information please refer to 2004 Update to the North American Waterfowl Management Plan, Strengthening the Biological Foundation (2.2 MB) and the 2004 NAWMP Implementation Framework.