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Les Cheneaux Islands Area, Lake Huron: Impacts of Water Level Fluctuations on Wetland Vegetation

Dennis Albert;
Development of regulation plan performance indicators describing water-level regime impacts on meadow and emergent marsh distribution in the Les Cheneaux Islands area, northern Lake Huron, Michigan. The performance indicator metrics are the surface area of meadow and emergent marsh and of three-square and hardstem bulrushes derived from field data collected at Mackinac and Duck Bay. Meadow and emergent marsh zones provide important habitat: meadow marsh is recognized as breeding habitat for waterfowl, including ducks and geese, as well as habitat for rare plants and animals; emergent marsh is recognized as providing feeding and spawning habitat for many commercially important fish. Bulrushes reduce erosion and trap coastal sediments along shorelines exposed to high wave energy, reducing wave energy and allowing other weak-rooted submergent and floating plants to grow, increasing wetland biodiversity and providing important habitat and food for many fish and birds.
Ecosystem PI 10: Meadow & Emergent Marsh, Mackinac/Duck Bay
Ecosystem PI 11: Bulrush Marsh, Mackinac/Duck Bay
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Supporting Content (Show)
Main Topics
Lake Superior Regulation
Questions We Asked
What constitutes improved plan performance?
Does the plan reduce environmental impacts?
View all 3 questions we asked
How vulnerable are interest groups to extremes?
Key Findings
Plan 2012 will be more robust and provide important benefits compared to Plan 77A
Plan 2012 performs similar to Plan 77A under 20th century NBS
Ecosystems Evaluation
Performance Indicators
View all 3 tasks
Coping Zones